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B. Controlling the Intensity of

the Scanning Lamp

1. Outline

Figure 3-306 shows the circuit that controls the

intensity of the scanning lamp, and the circuit has
the following functions:

q

Turns ON and OFF the scanning lamp.

w

Controls the intensity of the scanning lamp.
•

It serves to keep the intensity at a specific
level in the presence of fluctuations in the
power supply voltage.

•

It controls the intensity to a level suited to
the changes in the drum sensitivity.

•

It controls the intensity to a level suited to
the setting of the Copy Density key.

•

It controls the intensity to suit the density of
originals (AE control).

e

It detects the activation of the scanning lamp.

r

It switches lamps.

2. Operation

a. Turning ON and OFF the Scanning Lamp

When LRD (scanning lamp ON signal) is ‘0’,

the output of the differential amplifier circuit and
the phase control circuit goes ‘0’, thereby keeping
the arc circuit from turning on, depriving the scan-
ning lamp (LA1) of power.

When LRD is ‘1’, on the other hand, the output

of the differential amplifier circuit and the phase
control circuit goes ‘1’, turning ON the arc circuit,
supplying the scanning lamp (LA1) with power.

b. Controlling the Intensity of the Scanning

Lamp

The intensity to the scanning lamp is

increased/decreased by controlling the supply
voltage to the scanning lamp according to the
level of the intensity adjustment signal (LINT)
from the DC controller PCB.

3. OPERATIONS AND TIMING

COPYRIGHT © 1996 CANON INC.

CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)

3-55

Q158

Micro-

processor

(master)

D/A

converter

Error

detection

circuit

J122
-5

J122
-3

LAA

LINT

LRD

J335-5

J335-7

Lamp ON

detection

circuit

Scanning
lamp

J334-2

DC ON

drive

circuit

Lamp regulator

DC controller PCB

Differential

amplifier power

supply voltage

circuit

J334-1

C.F.F. lamp

(accessory)

J334-3

J334-4

Relay

circuit

J122

-2

LASEL

J335-8

J122

-6

J335-4

J333-1

PWOFF

AC

CP101-6

LA1

RL3

Relay drive 12VU power supply circuit 1

Power supply PCB

TS2

Figure 3-306

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Summary of Contents for NP6085

Page 1: ...SERVICE MANUAL REVISION 0 FY8 13E8 000 JULY 1996 COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 2: ... SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY COPYRIGHT 1996 CANON INC Printed in Japan Imprimé au Japon Use of this manual should be strictly supervised to avoid disclosure of confidential information Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPT 1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIV CANON INC 30 2 Shimomaruko 3 chome Ohta ku Tokyo 146 Japan COPY...

Page 3: ...Mechanical System explains how to disassemble assemble and adjust the NP6085 CHAPTER 5 Installation provides points to note when selecting the site of installation and instructions on how to install the NP6085 CHAPTER 6 Maintenance and Inspection provides tables of periodically replaced parts and consumables durables as well as a scheduled servicing chart APPENDIX contains a general timing chart g...

Page 4: ... the copyboard for copying Control Card V Provides an efficient means of controlling the volume of copying work Stapler Sorter E2 Sorts and groups up to 20 sets of copies automatically It is also equipped with a function to staple sorted copies automatically with the help of its multiple stacking function one set of copies may be delivered to a single bin COPYRIGHT 1996 CANON INC CANON NP6085 REV ...

Page 5: ...he Power Supply Cord Mount 4 12 F Removing the Counter Assembly 4 13 II DRIVE SYSTEM 4 14 A Scanner Drive Assembly 4 14 B Lens Drive Assembly 4 17 C Drum Motor Assembly 4 19 D Pick Up Motor Assembly 4 20 E Fixing Motor Assembly 4 21 F Drum Developing Drive Assembly 4 21 G Pick Up Drive Assembly 4 22 H Front Tray Drive Assembly 4 27 I Front Tray Lifter Motor Assembly 4 27 J Fixing Relay Drive Assem...

Page 6: ...ntroller PCB 4 100 B C F F Motor 4 101 C Replacing the ROM 4 102 CHAPTER 5 INSTALLATION I SELECTING THE SITE 5 1 II UNPACKING AND INSTALLATION 5 2 III RELOCATING THE MACHINE 5 30 IV INSTALLINGTHE CONTROL CARDV 5 31 V REMOTE DIAGNOSTIC DEVICE II 5 34 VI INSTALLING THE COPY DATA CONTROL A1 5 41 VII INSTALLINGTHE CARD READER A1 5 51 CHAPTER 6 MAINTENANCE AND INSPECTION I PERIODICALLY REPLACED PARTS 6...

Page 7: ...P6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 1 GENERAL INTRODUCTION I FEATURES 1 1 II SPECIFICATIONS 1 2 III NAMES OF PARTS 1 9 IV OPERATION 1 13 V WARNINGS AND ACTIONS TO TAKE 1 27 VI ROUTINE WORK BY THE USER 1 35 ...

Page 8: ......

Page 9: ... between 8 and 15 in in length feeding direction It handles continuous copying from continuous paper equivalent of as many as 500 pages of 80 g m2 paper 3 Full range of accessory for high speed copying work RF D1 Automatic original feeding device of an original circulating type Stapler Sorter E2 20 bin sorter capable of automatic stapling after sorting and grouping C F F Automatic continuous paper...

Page 10: ...ys paper deck Multifeeder 10 mm 0 39 in deep 100 sheets of 80 g m2 paper Corona Corona static separation Blade Heat roller 100V model 930 W 550 W 208 220 240V model 1600 W Copying Charging Exposure Copy density adjustment Development Pick up Automatic Pick up Manual Transfer Separation Cleaning Fixing II SPECIFICATIONS A NP6085 1 Type 2 System 1 GENERAL INTRODUCTION COPYRIGHT 1996 CANON INC CANON ...

Page 11: ...about 100 sheets of 80 g m2 paper 250 sheets approx A3 11 x 17 80 g m2 4 0 1 5 1 0 mm RF 4 0 1 8 1 4 mm 0 16 0 06 0 04 in RF 0 16 0 07 0 06 in 2 0 1 0 mm RF 2 0 1 4 mm 0 08 0 04 in RF 0 08 0 06 in 2 5 2 0 mm RF 2 5 2 3 mm 0 1 0 08 in RF 0 1 0 09 in Provided 2 min standard may be varied between 0 and 9 min in 1 min increments Provided 1 hr standard may be varied between 10 min and 2 hr Computer For...

Page 12: ...ng RDF Keep copy paper wrapped to protect against humidity Avoid direct rays of the sun and keep at 40 C 80 or less Operating environment Power supply Power consumption Noise Dimensions including RDF Consumables Temperature Humidify Atmospheric pressure 100 V 50 60 Hz 208 V 60 Hz 230 V 50 Hz 230 V 50 Hz 230 V 50 Hz 230 V 50 Hz 230 V 50 Hz Maximum Standby Continuous copying Copying Standby Ozone av...

Page 13: ... 6 1 0 500 1 0 1 0 707 1 0 1 0 816 1 0 1 0 865 1 0 1 2 000 1 0 1 1 414 1 0 1 1 224 1 0 1 1154 1 0 Direct Reduce Enlarge Copies min 47 85 90 54 85 61 67 61 67 61 54 85 45 53 53 45 77 Reproduction ratio I II III IV I II III IV Stream reading mode 1 GENERAL INTRODUCTION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 1 5 Table 1 1 Copying Speed copier Specifica...

Page 14: ... X 17 LTRR 11 X 17 LGL 11 X 17 1 1 0 06 50 0 1 0 64 7 1 0 73 3 1 0 200 0 1 0 129 4 1 0 121 4 1 0 Direct Reduce Enlarge Copies min 83 90 46 55 62 67 61 62 55 62 44 44 44 Reproduction ratio I II III I II III Stream reading mode 1 GENERAL INTRODUCTION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 1 6 Table 1 2 Copying Speed copier only Specifications subject ...

Page 15: ...max equivalent of 500 sheets of 80 g m2 paper Breadthwise automatic by position of tractor Lengthwise by input of holes in single page Provided for AB configuration either A4 or A4R for inch configuration from LTR or LTRR Provided automatic from between 64 and 100 based on sizes of original and copy however may be varied manually in 1 increments See P1 8 Provided measurements taken of single page ...

Page 16: ...t longer intervals than usual allowing the user to fold the continuous paper into pages Thereafter the pages are fed continuously up to the last page Delivered Copies If 250 or more copies are to be made copying operation will stop at the 250th copy and the copier will indicate a message asking the user to remove the copies from the copier s copy tray or the sorter s non sort bin Copying operation...

Page 17: ...re 1 1 1 GENERAL INTRODUCTION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 1 9 e w q r t u y q Stapler Sorter E2 w RDF D1 e Multifeeder r Paper deck t Front right door y Front tray u Front left door ...

Page 18: ... 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 1 10 q w e r t y u i o q Control panel w Copyboard glass e Power switch r Toner supply cover t Multifeeder y Paper deck u Jam indicator i Duplexing unit o Front tray ...

Page 19: ... charging assembly 1 No 4 mirror 2 Blank exposure lamp potential sensor 3 Hopper assembly 4 Developing assembly 5 Multifeeder 6 Paper deck 7 Roller electrode pre trans fer charging assembly 8 Registration roller 9 Re pick up assembly 0 Transfer separation charg ing assembly 1 Upper front tray 2 Lower front tray 3 Holding tray 4 Feeding assembly 5 No 2 feeding assembly 6 Fixing assembly 7 Delivery ...

Page 20: ...085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 1 12 C F F Copier w q t y u e r i o 0 1 2 q Original stacking tray w Delivery roller e C F F controller PCB r White plate t Platen glass y Dust proofing glass u C F F lamp i Heat exhaust fan o Tractor 0 C F F cover 1 No 1 No 2 3 mirror mount copier 2 C F F mirror unit ...

Page 21: ...tart Guide Interrupt AdditionalFunction 1 2 3 4 5 6 7 8 9 0 ID C ON OFF q w r t y u i 0 o 1 q Touch panel display w Guide key Copy Density key e Reset key Standard mode Copy count at 1 Direct Auto paper selection One sided to two sided Non AE r Numeric keypad t Energy Saver key ON when selected y Stop key u Start key i Clear key o ID key 0 User key Additional Function key 1 Interrupt key ...

Page 22: ... Enter the appropriate copy count 1 to 999 on the numeric keypad and check the copy count indicator q If you cannot enter a number on the numer ic keypad or if you made a mistake press the Clear key and enter the correct number once again 7 Press the Copy Start key q If you placed an original on the RDF s orig inal tray the original will be picked up auto matically and copying will start w As many...

Page 23: ...e end of copying opera tion or after the last key operation The auto clear time may be changed in Additional Function mode See p 1 24 C Auto Start You may select auto start mode when the copi er is in wait state in which the copier is in wait after power on in wait after de selecting Energy Saver mode cleaning any of the wires or in wait after removal of a jam Place an original while in wait state...

Page 24: ... F F releasing button 2 With the first page on top place the continuous paper against the rear of the multifeeder Be sure that the side you want to copy is facing the copyboard glass Figure 1 7 Reference The stack on the multifeeder must be 50 mm or less 3 Holding the top of the original stacking tray set it as if to pull it up Figure 1 8 4 Open the C F F cover Figure 1 9 5 Shift the tractor locki...

Page 25: ...he continuous paper is nei ther taut nor slack Figure 1 12 8 Close the tractor covers on both sides secure ly fix the continuous paper in place and shift the tractor lever at the front to the left to lock the tractor Figure 1 13 9 Turn the green dial so that it is aligned with the leading edge of the original Figure 1 14 1 GENERAL INTRODUCTION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 ...

Page 26: ...r 3 Set the appropriate copying mode and press the Copy Start so that the continuous paper original will be fed for copying The copy count must be 1 A4 or A4R will be selected automatically as copy paper Take care not to move the C F F once copying has started Reference The following may be selected copy density marging mode you cannot select left or right one sided to two sided copying zooming 64...

Page 27: ...her than the Energy Saver key will not be accepted w During energy saver mode the fixing tempera ture is controlled to a temperature lower than usual This may be changed in user mode e Energy saver mode may be de selected by pressing the Energy Saver key once again 2 Auto Power Off The copier s power switch will turn OFF if the copier is left alone for a specific period of time auto power off q Th...

Page 28: ...Original Frame Erase key to erase the frame like image of an original on a copy In this mode a margin is created along the copies corresponding to a width of about 2 mm on the original Figure 1 20 2 Sheet Frame Erasing You can use the Sheet Frame Erase key to erase a frame like image on copies In this mode a width of about 7 mm is created along the sides of the copies Figure 1 21 1 GENERAL INTRODU...

Page 29: ... J Auto Paper Selection When this mode is selected the copier will automatically select the tray that contains paper of the size most suited to the selected original size and the reproduction ratio If no such paper is available the copier will select the cassette containing paper which can accommodate the most image and will indicate the selection on the touch panel display Press the Copy Start ke...

Page 30: ...pied on a single sheet of copy paper This mode may be any of the following four types 2 on 1 mode 4 on 1 mode 2 on 1 two sided mode 2 on 1 overlay mode P Diffrent Size Original Mode Use this mode when making copies by stack ing originals of different sizes in the RDF In this mode you can take advantage of auto paper selection and auto zoom for each different origi nal Copying will be slower howeve...

Page 31: ...and try again 2 Press the key 3 Check to see if the copier is ready to make copies It becomes ready when the ID number input matches any of the previously stored numbers 4 Press the key to return to the ID No Input screen 3 Keeping Track of Counts You can have copy counts i e the number of copies made so far displayed by ID number 1 Press and 2 Select count control on the touch panel dis play and ...

Page 32: ...to two sided copying using the RDF under copy count 1 A4 B5 horizontal ON So that the copier executes skip two sided copying OFF So that the copier starts copying after counting the number of originals Use it to enable the following when using the RDF in manual mode ON So that copying will start automatically OFF So that copying will start in response to a press on the Start key ON So that the cop...

Page 33: ...non image area ON So that copies will be made with original frame erasing ON OFF So that copies will be made with original frame erasing OFF Use it to change the temperature setting for the fixing assem bly in energy saver mode thereby lowering power consump tion by the copier 10 25 50 no recovery time Press the YES key to initialize the custom settings made in sure mode Use it to set the standard...

Page 34: ... mechanism is activated by day of week Use it to set the date and time of the built in clock Item Auto clear time Auto power off time Day timer settings Date time settings Operation remarks Factory default 2 min Factory default 1 hr Description Use it to adjust the vertical and horizontal reproduction ratios for copying at 100 1 max Adjustment width 1 0 to 1 0 Adjustment unit 0 2 Use it to execute...

Page 35: ...mbly separation feeding assembly fixing delivery assembly cleaning assembly and duplexing feeding assembly to remove all pieces of paper Make use of the jam location indicator behind the front door Figure 1 25 1 Jams in the Delivery Assembly 1 Release the delivery assembly 2 Turn the fixing assembly knob in the direction of the arrow to forward the jam Figure 1 26 Figure 1 27 3 Set the delivery as...

Page 36: ...ixing assembly to set it in the copi er 7 Close the front door 3 Jams in the Feeding Assembly 1 Hold the grip and slide out the duplexing unit 2 Remove the paper trapped in the feeding assembly Figure 1 29 3 Push in the duplexing unit and set it in the copier 4 Close the front door 4 Jams in the No 2 Feeding Assembly 1 Turn the knob on the registration roller and remove the jam 2 Hold the grip and...

Page 37: ... Assembly 1 Move the grip on the pick up vertical assembly in the direction of the arrow and remove the paper Figure 1 32 2 Set the pick up vertical path assembly and close the front cover 7 Jams on the Front Tray 1 Press the front tray open button 2 Slide out the front tray 3 Remove the jam Figure 1 33 4 Push in the front tray 8 Jam in the Paper Deck 1 Open the paper deck cover 2 Remove the jam F...

Page 38: ...r cover and place the continu ous paper original once again At this time check the original and the last copy delivered to find out which original page to resume copying with then align the leading edge perforation of the page with the orange index Figure 1 37 3 Close the tractor cover slowly and securely 4 Turn the green dial and make fine adjust ments so that the leading edge perforation of the ...

Page 39: ...g the C F F Cover If the continuous paper jams or moves awry in the C F F perform the following to avoid having to separate the pages 1 Remove the C F F cover as follows q Open the C F F cover w Slide the tab on the front inside of the C F F in the direction of the arrow in Figure 1 40 and remove the hinge at the front and then the hinge at the rear then remove the C F F cover Figure 1 40 2 Instal...

Page 40: ...r deck is not closed fully 1 Supplying Paper to the Front Tray 1 Press the Open button of the tray to be sup plied with paper Figure 1 41 2 Hold the tray and slide out the tray until it stops 3 Place a stack of copy paper butting it against the side of the tray and close the tray Figure 1 42 Advise the user not to place paper on the front tray shown in Figure 1 43 Figure 1 43 1 GENERAL INTRODUCTIO...

Page 41: ...ly mouth push in the bottle until a click is heard Figure 1 44 2 Move the slide lid in the direction of the arrow to fix the toner bottle in place Figure 1 45 3 Slide the shutter of the toner bottle to the front until it stops Figure 1 46 Toner supply operation will start tap lightly on the toner bottle to make sure all toner has poured into the hopper 4 Push the shutter of the toner bottle to the...

Page 42: ...ttle to remove Figure 1 49 7 Close the toner supply cover D Handling the Toner Bottle Instruct the user to dispose of any empty toner bottle as nonflamable material Do not dispose of the toner bottle into fire It may explode 1 GENERAL INTRODUCTION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 1 34 Caution ...

Page 43: ... Cover RDF Feeding Belt Wipe it with a solution of mild detergent and dry wipe it 3 Charging Wire Clean it by executing the wire cleaning function in user mode 4 RDF Separation Belt Clean it by executing the feeder cleaning func tion in user mode 1 GENERAL INTRODUCTION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 1 35 ...

Page 44: ......

Page 45: ...COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 2 COPYING PROCESSES I IMAGE FORMATION 2 1 II AUXILIARY PROCESSES 2 9 ...

Page 46: ......

Page 47: ... NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 2 1 Developing assembly Photosensitive drum Blank exposure LED Hopper assembly Scanning lamp Copyboard glass Roller electrode Pre transfer corona assembly Lens Primary charging assembly Pre exposure LED Cleaning assembly Fixing assembly Separation claw Separation charging assembly Transfer charging assembly Delivery static eliminator Pick u...

Page 48: ...1996 PRINTED IN JAPAN IMPRIME AU JAPON 2 2 The photosensitive drum consists of an amor phous silicon layer on the outside and an alu minum substrate on the inside In general a photosensitive medium made of amorphous silicon provides high durability sensi tivity and resolution Figure 2 103 Figure 2 102 Latent image formation block 2 Primary charging 1 Pre exposure 3 Image exposure 4 Development 5 P...

Page 49: ...ism to ensure a specific poten tial for the dark and light areas of static images figure 2 104 C Pre Exposure step 1 Figure 2 105 Pre exposure is executed in advance of prima ry charging to remove residual charges from the surface of the drum thereby preventing uneven copy density 2 COPYING PROCESSES COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 2 3 Dark a...

Page 50: ...he grid therefore the grid is grounded through a varistor to ensure a specific surface potential E Image Exposure step 3 Figure 2 107 The optical image of an original is projected onto the surface of the drum thereby neutralizing the charges in the light areas 2 COPYING PROCESSES COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 2 4 Primary charging Photosensi...

Page 51: ...thin uni form layer of toner on the cylinder An AC bias and a DC bias are simultaneously applied to the developing cylinder and the blade developing bias as such the positive compo nent of the developing bias is greater than the negative component Figure 2 110 During copying operation toner is attracted to the photosensitive drum or to the developing cylinder according to the strength of the magne...

Page 52: ...r guide is grounded through a varistor Reference If the transfer guide was directly grounded the charges that should be on the back of paper would escape causing transfer faults if cut off completely on the other hand the transfer guide would be charged and ultimately coated with toner to soil the back of copies In high humidity condition partial transfer failure may occur In some cases ground ing...

Page 53: ...wo heating rollers so that the toner image will be fused into the fibers of the paper To prevent jams and toner offset the upper roller is kept in contact at two points with a clean ing belt impregnated with silicone oil the take up mechanism moves the area of contact thereby cleaning the belt while applying silicone oil to it 2 COPYING PROCESSES COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 19...

Page 54: ...ff toner remaining on the surface of the drum while the magnet roller collects it The toner is then forwarded to the rear of the copier for collection in the waste toner case Further the friction against the magnetic brush of the magnet roller is used to deposit a thin coat ing of toner on the surface of the drum serving to ensure the appropriate contact between the drum and the cleaning blade and...

Page 55: ...ails to separate from the photo sensitive drum because of a pre transfer charging fault separation charging fault or feeding fault it could move into the cleaning assembly To prevent such a problem a separation claw is located at the bottom of the cleaning assembly the claw forces off copy paper from the drum thereby keeping it from moving into the cleaning assembly 2 COPYING PROCESSES COPYRIGHT 1...

Page 56: ...f unwanted toner on the sur face of the drum D Ozone Filter The ozone filter is a catalytic filter used to break down the ozone generated by charging assemblies the air exhaust fan assembly and the feeding fan assembly are equipped with such a fil ter to prevent the emission of ozone outside the machine See p 3 150 E Delivery Static Eliminator Copy paper immediately before delivery car ries residu...

Page 57: ...al paths Signals in digital circuits are identified as 1 for High and 0 for Low The voltage of signals how ever depends on the circuit Nearly all operations of the product are controlled by a microprocessor the internal workings of the processor are not relevant to the service person s work and therefore are left out of the discus sions By the same token no repairs are prescribed for the PCBs at t...

Page 58: ......

Page 59: ...rol circuit Control panel Control system Original illumination Copyboard Optical path Exposure system Feeding assembly No 2 feeding assembly Primary charging Surface potential control assembly Photosensitive drum Separation Transfer Image formation system Drum cleaner assembly Toner collection Fixing assembly Developing assembly Pick up control assembly Multifeeder Duplexing unit Re pick up contro...

Page 60: ...aper jogging guide drive motor The master Q158 and slave Q115 micro processors exchange data through RAMs Q166 Q188 Communication with the RDF D1 sorter and C F F is between the communication IC IPC com munication on the controller PCB of the option and the communication IC on the NP6085 s DC controller Communication with the side tray does not use the communication IC IPC communication but is in ...

Page 61: ... Pick up motor controller PCB Pick up motor Fixing motor controller PCB Fixing motor Heaters Hopper motor Toner stirring motor Solenoid clutch Lens motor LED Charging assembly Developing cylinder Roller electrode Scanning lamp Jam removal lamp Fan HVT Lamp regulator IPC IPC Microprocessor Microprocessor RDF controller PCB Sorter controller PCB C F F controller PCB Sensors switches Sensors switches...

Page 62: ...nsor Fixing assembly paper sensor When copy paper is at the separation claw of the fixing assembly 0 The light blocking plate is at Q7 When Q10 has detected copy paper 0 The light blocking plate is at Q9 When the lens is at X direction home position 1 The light blocking plate is at Q2 When the lens is in Y direction home position sensor 1 The light blocking plate is at Q3 When the signal plate is ...

Page 63: ...ocking plate is at Q16 B10 B9 B8 A7 A8 A9 A4 A5 A6 A11 A10 A9 B13 B12 B11 DC controller PCB J117 J127 J117 No 2 feeding assembly inlet sensor Paper reversing assembly outlet sensor Paper reversal sensor Delivery sensor No 2 feeding assembly paper sensor Lower front tray lifter position sensor Lower front tray paper absent sensor Upper front tray lifer position sensor Upper front tray paper absent ...

Page 64: ... sensor Accessory 5VR 5VR 5VR When Q30 has detected copy paper 1 The light blocking plate is at Q30 When Q33 has detected copy paper 1 The light blocking plate is at Q33 When the C F F mirror has shifted to a specific position 1 The light blocking plate is at Q32 5VR When Q34 has detected copy paper 1 The light blocking plate is at Q34 B7 B6 B5 J112 J127 A3 A2 A1 J112 A12 A11 A10 J123 A10 A9 A8 Q3...

Page 65: ... paper 1 The light blocking plate is at Q46 When Q49 has detected copy paper 1 The light blocking plate is at Q49 Q58 Upper front tray paper volume sensor 5VR When the volume of paper on the upper front tray is below a specific volume 1 The light blocking plate is at Q58 J115 A5 A4 A3 Q60 5VR When Q60 has detected copy paper 1 The light blocking plate is at Q60 A7 A6 A5 J123 Buffer assembly delive...

Page 66: ...h Upper front tray lifter upper limit detecting switch J115 B5 B6 B7 B8 A6 A7 When the upper tray is at the front 0 When the lower tray is at the front 0 When SW16 has detected the lifter 0 UTLLD J115 A1 A2 SW17 Upper front tray lifter lower limit detecting switch When SW17 has detected the lifter 0 TSCRP TSCHP SW8 SW9 Transfer separation charging wire cleaner rear detecting switch J118 B8 B7 B9 W...

Page 67: ...paper length detecting switch lower A2 A1 A4 A3 Upper front tray paper length detecting switch upper J119 J119 FXSD Fixing assembly detecting switch 12VU SW32 A12 A13 J105 When the fixing assembly has been installed 1 SF1D J123 A1 A2 SW51 Accessary connection detecting switch When an accessory is connected alternates between 0 and 1 Oscillation signal DIGIT Oscillation signal DIGIT Oscillation sig...

Page 68: ...hermistor Environment sensor TH1 When the temperature of the fixing roller increases the voltage lowers analog signal TH2 When the temperature inside the machine increases the voltage lowers analog signal HUM1 When the humidity inside the machine increases the voltage increases analog signal 5VR J104 B1 B3 B2 B4 24VU POT POTON Sensor Potential measurement sensor J661 See p 3 53 J104 A5 A4 A3 A2 A1...

Page 69: ...rum heater switch Drum heater SW48 Door switch DC controller PCB A2 A3 A5 A6 J118 A7 PW OFF MSW ON AC1 D AC0 ON REMOTE H1Fixing heater TS1Thermal switch Drum heater control PCB DC power supply PCB A1 1 2 3 5 6 7 Relay unit PCB J2013 1 J2013 2 Lamp regulator J122 LA1Scanning lamp J334 1 3 5 6 1 2 3 4 J2012 J311 1 3 5 J300 1 3 5 7 J333 1 TS2Thermal switch J2011 4 5 6 J333 3 5 7 J2014 1 3 2 J2011 7 8...

Page 70: ...between 8 and 17 V to control the pre transfer bias DC component Varies between 8 and 16 V to control the separation bias DC component When 1 the HVT circuit turns OFF When 0 the roller electrode bias is generated Varies between 8 and 16 V to control the developing bias DC component When 0 the developing bias AC component is generated Varies between 8 and 17 V to control the primary current Varies...

Page 71: ... motor control PCB J123 B6 B7 B8 PMD PMFG PMFS M17 Fixing motor Fixing motor control PCB J111 B2 B4 B1 FMD FMFS FMPL See p 3 21 See p 3 45 See p 3 21 See p 3 21 J125 B4 B5 SL1 J117 A12 A13 SL2 A10 A11 SL3 B6 B5 SL4 Cleaning belt drive solenoid No 2 paper deflecting plate drive solenoid No 1 paper deflecting plate drive solenoid S size paper deflecting plate drive solenoid 24VU CLBSD 24VU 24VU DSD2...

Page 72: ... sub feeding roller DOWN solenoid DPISD When 0 SL10 turns ON 24VU A11 A10 SL11 Lower front tray pick up roller releasing solenoid LPRSD When 0 SL11 turns ON 24VU J115 B3 B4 SL12 LTRSD When 0 SL12 turns ON 24VU Lower front tray releasing solenoid B1 B2 SL13 UTRSD When 0 SL13 turns ON 24VU Upper front tray releasing solenoid A9 A8 SL15 UPRSD When 0 SL15 turns ON 24VU Upper front tray pick up roller ...

Page 73: ... back reversing clutch LPUCD When 0 CL5 turns ON RGCD When 0 CL10 turns ON 24VU CL10 Registration roller drive clutch J121 A12 A11 CL5 24VU Lower front tray pick up clutch B4 B3 FEDCD When 0 CL9 turns ON 24VU CL9 Feeding roller clutch B2 B1 PRGBCD When 0 CL13 turns ON 24VU CL13 Pre registration roller stop clutch Re pick up clutch B13 B12 When 0 CL6 turns ON 24VU CL6 J120 DUPCD A5 A4 J115 A12 A13 ...

Page 74: ...0 Lens X motor See p 3 31 LX A LX A LX B LX HOLD LX B A1 A2 A3 A4 A5 Lens Y motor See p 3 31 LY A LY A LY B LY HOLD LY B J120 Paper jogging guide motor See p 3 111 A A COM B B B5 B4 B3 B2 B1 J124 B7 B6 Toner stirring motor M13 J115 A14 A15 Lower front tray lifter motor M14 J127 A5 A4 C F F mirror motor M15 J124 Hopper motor M18 See p 3 68 Accessory M15FW M15RV When M15FW 1 and M15RV 0 the mirror s...

Page 75: ...1 FM2 Fixing cooling fan J116 Developing fan J127 B12 B13 FM5 B10 B11 FM8 Scanner motor cooling fan FM15 Transfer charging dust proofing fan J104 J121 A9 A10 FM9 Primary charging dust proofing fan J125 12VU 12VU 12VU 12VU 24VU 24VU FMDL2 When 1 FM2 3 4 6 13 rotates at low speed FMDH2 When 1 FM2 3 4 6 13 rotates at high speed When the fan is rotating 1 When the fan is rotating 1 When the fan is rot...

Page 76: ... 0 the lamp turns ON When 0 the lamp turns ON When 0 the total copy counter operates When 0 the S size copy counter operates J103 B2 B4 B3 B1 CC V CCNTD CCNNT Control card When 0 the CC F operates When 0 a card has been detected A11 A12 A10 A9 A8 A6 A5 CNTP MODEM TxD MODEM RxD 24V Copy Data Controller A1 J119 When 0 a copy is counted Transmission data IPC communication 2 Reception data IPC communi...

Page 77: ... J501 M4 J501 B7 B8 Paper deck pick up roller releasing solenoid Paper deck lifter motor STLLD STDO 24VU See p 3 86 STPE STLAS STUAS STPRSD When the lifter has moved up the top face of the paper to s specific position or the lifter cam has pressed SW10 0 When there is no copy paper in the paper deck 1 The light blocking plate is at Q18 When the volume of paper is below a specific value 1 The light...

Page 78: ...olenoid J102 B7 B8 B6 MPUSD B11 B10 4KPCD 24VU CL11 Paper deck pick up clutch J112 Multifeeder pick up clutch B6 B5 MFPCD 24VU CL12 DC controller PCB Q36 Multifeeder pick up sensor 5VR A9 A8 A7 J102 J104 When Q29 has detected copy paper 1 The light blocking plate is at Q29 When Q36 has detected copy paper 1 The light blocking plate is at Q35 When Q36 has detected copy paper 1 The light blocking pl...

Page 79: ...o 1 4 and are sent to the DC con troller PCB as clock pulses DMFG PMFG FMPL for sequence control 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 21 Provides drive to the photosensitive drum developing assembly Provides drive to the paper deck and front tray Provides drive to the fixing assembly reversing assembly duplexing assembly ...

Page 80: ... generates control signals phase comparison signal so that the phase of the clock pulses DMCLK PMCLK FMCLK gen erated by the main motor and the phase of the ref erence pulses match Likewise the frequency comparator circuit generates control signals frequency comparison signal so that the frequency of the clock pulses DMCLK PMCLK FMCLK and the frequency of the reference pulse match Both phase compa...

Page 81: ...ns ON for 5 sec 4 ON only if the surface temperature of the fixing roller is 60 C or less The timing may be changed in service mode Figure 3 121 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 23 CNTR1 Power switch ON LSTR STBY CNTR2 WMUP AINTR INTR Fixing main heater H1 Drum motor M1 Scanner motor M2 Fixing motor M17 Primary chargi...

Page 82: ... CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 24 CNTR LSTR STBY WMUP AINTR INTR Fixing main heater H1 Drum motor M1 Scanner motor M2 Fixing motor M17 Blank exposure LED Upper pick up clutch CL14 Scanning lamp LA1 Wait indicator Power switch ON ON in green INTR SCFW SCRV SCFW SCRV LSTR Copy Start key ON WAIT yy yy yyyyy yyyyy yyyyy yyyyy ON in green ON in orange yyyyyy...

Page 83: ...rature of the upper fixing roller has reached 180 C until it reaches 188 C For about 5 sec from the end of INTR For about 5 sec from the end of CNTR1 While the photosensitive drum makes a single rota tion From the end of LSTR un til the Copy Start key is pressed or the power switch is turned ON WMUP warm up AINTR INTR initial ro tation CNTR1 control rotation 1 CNTR2 control rotation 2 LSTR last ro...

Page 84: ...or M1 Scanner motor M2 Fixing motor M17 Pre exposure LED Pre cleaning exposure LED Blank exposure LED Scanning lamp LA1 Primary charging Pre transfer charging Transfer charging Separation charging Developing clutch CL1 Upper pick up clutch CL14 STBY CNTR1 CNTR2 AER SCFW SCRV SCFW SCRV Front Rear 1 1 The blank exposure LED is turned OFF in relation to the potential sensor location for potential mea...

Page 85: ... scanner is moving forward The distance over which the scanner moves for ward varies according to the copy paper size and the selected repro duction ratio The speed at which the scanner moves forward varies depending on the selected reproduction ratio While the scanner is moving in reverse From the end of SCRV until the main motor stops INTR initial rotation CNTR1 control rotation 1 CNTR2 control ...

Page 86: ...int 120 mm from the leading edge of the original Both originals on the left and the right are copied based on the mea surement Reference 1 If the conditions for potential measure ment exist p 3 52 control rotation CNTR1 2 is executed after INTR 2 Page separation is executed only for A4 or B5 copies 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRI...

Page 87: ...ving forward The distance over which the scanner moves for ward varies according to the copy paper size and the selected repro duction ratio From when the scanner starts to move in reverse until the copy paper is dis charged While the scanner is moving forward The distance over which the scanner is moving forward varies accor ding to the copy paper size and the selected reproduction ratio From whe...

Page 88: ...inal is placed using rear reference with copyboard cover in use however the lens is moved in Y vertical direction accord ing to the width of the copy paper even in Direct mode Copyboard Cover in Use Figure 3 202 top view Moreover since the RDF installed to the NP6085 uses center reference the lens is not moved in Y vertical direction if the original size and the copy size are the same and Direct m...

Page 89: ...he same way the lens X motor will be discussed herein The lens X motor M9 is controlled by the four motor drive signals LX A LX B generated by the DC controller PBC The lens and its direction of rotation is controlled by vary ing the output timing of these signals LX B LX A 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 31 DC contr...

Page 90: ...sensor Q2 Then the lens Y motor M10 rotates and the lens keeps moving until the signal plate on the lens mount blocks the lens Y home position sen sor Q3 When the signal plate blocks the home posi tion sensor the X motor and the Y motor rotate in reverse and the motors will stop when the lens housing is positioned where A4 copies in Direct may be made See I of Figure 3 205 3 OPERATIONS AND TIMING ...

Page 91: ...lens Y motor M10 moves once again when the Copy Start key is pressed and the orig inal size and the copy size have been established III in Figure 3 205 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 33 DC controller PCB Lens Y motor drive signal Lens X motor drive signal Lens Y home position signal LYHP Lens X home position signal ...

Page 92: ...the scanner leading edge 2 sensor Q38 is used to find out whether the No 1 mirror mount of the scanner has reached a specific point The distance over which the scanner moves varies according to the copy size and the select ed reproduction ratio If 157 is specified as the reproduction ratio part of some originals may not show on the copy 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085...

Page 93: ... the scanner C F F position sensor Q6 and the scanner is fixed in the C F F position after Q6 has recognized that the scanner has reached the position See Figure 3 208 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 35 C F F shutter Standard white plate No 2 mirror No 1 mirror No 3 mirror To No 4 mirror Scanning lamp Copyboard glass...

Page 94: ...nner Description Forward Reverse Scanner home position sensor Q5 SCHP Scanner home position Scanner motor stop moving Scanner original leading edge 1 sensor Q4 SCDP1 Registration clutch ON Scanner forward distance reference The brakes are applied to show down the scanner Scanner original leading edge 2 sensor Q38 SCFFP Scanner stream reading position Scanner C F F position sensor Q6 SCDP2 Scanner ...

Page 95: ...D TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 37 Ratio key ON Scanner motor drive signal M2ON Scanner forward signal M2F R Scanner stop signal M2BLK Blank exposure lamp Scanner home position sensor Q5 Lens drive motor M9 M10 Scanner motor M2 INTR AER SCFW SCRV LSTR STBY Scanner original leading edge sensor Q4 Scanning lamp LA1 STBY 2 Brake 2 Bra...

Page 96: ...s of 220 mm a length of about 220 mm will be used as the leading edge of the second page Reversing the order of pages for copying using the asterisk mode Chapter 1 will not change any sequence except the order of SCFW2 SCRV2 and SCFW1 SCRV1 Reference If two or more modes have been selected the scanner is controlled based on the min imum original size of the measurements that have been read The mic...

Page 97: ...LTR The RDF feeding speed can be adjusted in service mode LA_SPEED 7 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 39 6 Sequence of Scanner Movement with the RDF in Use A4 2 originals 1 copy Figure 3 211 Scanner motor M2 Scanner locking solenoid SL18 Scanner home position signal Q5 Image leading edge signal SCFW SCFW SCRV Scanner ...

Page 98: ...far as a point in front of the scanner system the RDF sends the image leading edge signal to the copier In response the copier turns ON the registration clutch so as to match the registration between the original and the copy r The 2nd original is moved over the scanner and is exposed Then the RDF generates the image leading edge signal for the 1st original y The scanner is returned to home positi...

Page 99: ... signal Q38 Belt motor M3 LSTR SCFW SCFW SC RV SC RV SC RV 1 Scanner fixed in position 2 Scanner moved 1 2 1 2 Copier RDF a Outline The NP6085 makes copies combining stream reading scanner fixed in position and normal scanning scanner moved with the help of the RDF under the following conditions A4 LTR B5 one sided original one original to multiple copies reproduction ratio between 86 and 115 In t...

Page 100: ......

Page 101: ...ion q Originals are set Originals RDF 1 2 Scanner 1 2 2 1 1 u The scanner is moved to the center of the copyboard and is fixed in position by the scanner locking support plate e The RDF sends the image leading edge signal to the copier when the leading edge of the 2nd original reaches a point in front of the scanner In response the copier turns ON the registration clutch to ensure correct registra...

Page 102: ......

Page 103: ...erse When the scanner motor drive signal goes 0 and the scanner forward signal M2F R goes 0 the drive circuit turns ON to rotate the scanner motor counterclockwise thereby moving the scanner in reverse e Controlling the Speed of the Scanner Motor The microprocessor on the DC controller PCB sends the scanner speed signal M2FS to the scanner motor driver PCB according to the select ed reproduction r...

Page 104: ...in Table 3 203 to change the speed of scanner motor according to the selected repro duction ratio Table 3 203 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 46 M2 MD2 M2 MD1 M2 MD0 DC controller PCB Scanner motor driver PCB Motor stop circuit 0 0 0 0 1 200 172 0 1 0 171 151 0 1 1 150 91 1 0 0 92 72 1 0 1 71 68 64 62 1 1 0 67 64 61 ...

Page 105: ...ult sizes 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 47 A4 B5 A4R B5R A3 B5 A4 B5R A4R B4 A3 Phototransistor LED Copyboard cover sensor Original size detection 3 Original size 4 detection signal DSZ4 Original size 3 detection signal DSZ3 Original size 1 detection signal DSZ1 Original size 2 detection signal DSZ2 Copyboard detec...

Page 106: ...e to the output of the detection circuit and identifies the absence of an original in response to a change This way a black original may also be identified as to its size Reference 1 If the original is thick and the RDF does not close fully after Q89 has turned ON the level of the sensor output will remain unchanged In consideration of this the measurement at the moment Q89 goes ON is compared aga...

Page 107: ...PYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 49 Original size detection signal Size DS3 DS1 DSZ4 DSZ3 DSZ2 DSZ1 AB 0 0 0 0 None 0 0 0 1 B5R 0 1 0 0 B5 1 1 0 0 A4 0 0 1 1 A4R 0 1 1 1 B4 1 1 1 1 A3 DS2 AB configuration Original size detection signal Size DS2 DS1 DSZ3 DSZ2 DSZ1 0 0 0 None 0 0 1 1 0 1 1 0 0 1 1 1 Inch configuration LTRR LGL LTR 11x17 Inch ...

Page 108: ...ron ment temperature humidity The NP6085 is equipped with a drum surface potential control mechanism that serves to ensure reproduction of stable latent images in the pres ence of the above factors The NP6085 varies the light area target poten tial VL1 dark area target potential VD and con trol coefficient according to the drum sensitivity so as to produce stable images Use the light area potentia...

Page 109: ...1 a ref erence ON voltage is applied to the scanning lamp The scanning lamp exposes the standard white plate and the reflected light is projected to the drum The drum surface potential of the area exposed to light is measured by the potential sen sor and the result is sent to the DC controller PCB In turn the DC controller compares the mea surement and the target and corrects the intensi ty adjust...

Page 110: ...al Potential control rotation CNTR1 2 is execut ed under the conditions discussed below not for each copy Measurements are also taken for photo mode as described in the table 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 52 10 min to earlier than 60 min Once for the first copy Once for the first copy Once for the first copy Power ...

Page 111: ... and the sync signal from the sync adjustment circuit to identify whether the drum surface potential is positive or negative Figure 3 304 Surface Potential Higher Than the Sensor Bias Reference The letter F of F30V stands for floating indicating that the reference line of the power supply is not grounded i e not 0 V 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRIN...

Page 112: ...tial measurement PCB a Making Checks q Checking LED1 Normally LED1 turns ON when the drum motor is rotating If it fails to turn ON a fault may be suspected in the potential measurement unit Reference If LED 1 is ON normally the potential sen sor may be assumed to be operating nor mally w Using Check Pins J132 1 and J132 2 on the DC controller PCB are used to find out the condition of the potential...

Page 113: ...rc circuit from turning on depriving the scan ning lamp LA1 of power When LRD is 1 on the other hand the output of the differential amplifier circuit and the phase control circuit goes 1 turning ON the arc circuit supplying the scanning lamp LA1 with power b Controlling the Intensity of the Scanning Lamp The intensity to the scanning lamp is increased decreased by controlling the supply voltage to...

Page 114: ... with DC power when the lamp switching signal LASEL from the DC controller PCB is 1 and the C F F lamp is supplied with DC power when it is 0 This switching mechanism is limited to LRD 0 lamp OFF and is automatic when the C F F is in use 3 Automatic Exposure Control AE The NP6085 is equipped with a mechanism that automatically controls the intensity of the scanning lamp according to the density of...

Page 115: ...ich two LEDs emit light against an original and a photodiode measures the light reflected by the original AE sensor 1 S7 is used in left pick up while AE sensor 2 S33 is used in right pick up Figure 3 309 Figure 3 309 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 57 AE sensor 1 S7 AE sensor 2 S33 ...

Page 116: ...t pick up Figure 3 310 Points of Measurement on Originals 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 58 98mm RDF feeding direction b Right Pick Up RDF feeding direction a Left Pick Up 25mm 15 20mm 9 12 14 6 22 2 L1 L2 L2 L2 L2 L1 32 mm approx 1st page 45 mm approx 2nd and subsequent pages LTR 41 mm 2nd and subsequent pages A4 3...

Page 117: ...sity if the density of the original is higher darker than that of the Test Sheet the intensity will be of a specific level from light to dark Figure 3 311a At this time the application voltage to the primary charging assembly is lowered to lower the density The settings for this mode in which the intensity is maintained at a specific level in low humidity condi tions and the voltage of the primary...

Page 118: ...ing is increased in service mode The intensity during copying will increase so that the copies will be lighter 2 If the setting is decreased in service mode The intensity during copying will decrease so that the copies will be darker GLEAM _ 5L GLEAM _ 5H CFFGREAM Adjusts the optimum intensity for non potential control intensity for medium copy density 1 If the setting is increased in service mode...

Page 119: ... copy size thereby blacking out whiting out the non image areas When a default reproduction ratio is used or when a default copy size is selected in Direct mode a non image width is created at the front and the rear as shown in Table 3 304 standard frame erasing The non image width may be set to 0 mm in service mode 4 Controlling the Activation in Sheet Original Frame Erasing Mode In sheet frame e...

Page 120: ... binding LEDs are turned ON to keep away toner over a width that covers such holes The width may be varied between 1 and 20 mm Figure 3 314 7 Controlling the Activation in AE Mode In AE mode the surface potential of the drum is measured requiring the blank exposure LEDs to be OFF Since the area where surface potential is mea sured is limited on the photosensitive drum only those blank exposure LED...

Page 121: ...VTPC signal is about 8 V or more and less than 16 V the primary corona current turns ON it turns OFF when the output is about 16 V or more a Turning the Primary Corona Current Output HVTPC is about 16 V or more HVRMT is 1 The differential amplifier circuit turns OFF The primary high voltage transformer turns OFF b Turning ON the Primary Corona Current Output HVTPC is less than 16 V HVRMT is 0 The ...

Page 122: ...ent output is turned ON OFF by the HVRMT signal and the output level of the transfer current is controlled by the transfer charging level control signal HVTCT When the HVTCT signal is about 8 V or more and less than 16 V the output of the transfer coro na current turns ON it turns OFF when the signal is about 16 V or more LED2 turns ON if the high voltage transformer HVT1 is supplied with 24VR pow...

Page 123: ...ea surement is used together with the internal tem perature and the copying mode to determine the separation corona current Figure 3 318 The pre transfer corona current is determined on the other hand based on the temperature and the humidity detected in advance Figure 3 319 2 Turning ON and OFF the Separation Pre Transfer Corona Current The separation pre transfer corona current is turned ON OFF ...

Page 124: ...re transfer separation charging assembly The copier operation continues in the pres ence of the HVOFF signal and application of corona current will be resumed when the level of the application current returns to normal 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 66 300 8 16 HVPCT signal voltage level Pre transfer corona current ...

Page 125: ...jams will be frequent if the corona current output applied to the trans fer separation charging assembly stops Since such a fault will not be indicated on the control panel check the mechanisms involved if separation jams start to occur frequently 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 67 Caution ...

Page 126: ... case is monitored by the waste toner full detecting switch SW13 when the toner is full the switch sends the waste toner full signal WTOFP to the DC controller PCB when 50 000copies are made thereafter the DC controller prohibits further copying and at the same time indicates on the control panel that the waste toner case is full E019 You may use service mode B_ALARM to check if the toner case is ...

Page 127: ...embly If the black toner sensor Q85 becomes faulty for some reason or if the black toner supply signal BTS 0 is detected for 120 sec or more without a required amount of toner from the hopper the copier will indicate E020 and stop its operation HMD 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 69 Black toner supply signal BTS Hopp...

Page 128: ...ng 2 000 copies The number of copies is stored in RAM on the DC controller PCB the count is cleared assuming the presence of toner when the hopper toner level detection signal TEP 1 is detected for 3 sec or more while clearing the Add Toner message on the control panel Reference The developing assembly and the hopper assembly are equipped with a piezoelectric oscillator In the absence of toner it ...

Page 129: ...er on the photosensitive drum when copying operation is not taking place Figure 3 326 5 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 71 Photosensitive drum Developing cylinder VDB Dark area Light area Bias VDB VL2 80 90 V Toner b Control Timing Table 3 305 Voltage 130V 600V VL2 80 90 V with C F F in use VL2 80 V 1500VP P 2700Hz B...

Page 130: ... JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 72 Power switch ON WMUP AC bias INTR CNTR1 LSTR STBY CNTR2 DC bias Developing clutch CL1 Drum motor M1 AINTR 130V 600V Copy Start key ON Drum motor M1 AC bias INTR SCFW LSTR STBY DC bias Developing clutch CL1 AER SCRV SCFW SCRV 600V 600V VL2 80 90V ...

Page 131: ... rest The switching circuit turns OFF The drive circuit turns OFF The high voltage DC transformer turns OFF The above condition cuts the bias to the roller electrode w Turning ON the Roller Electrode Bias is 0 i e the registration roller is rotating The switching circuit turns ON The drive circuit turns ON The high voltage DC transformer turns ON The above condition supplies a bias of about 1000 V...

Page 132: ... such movement of the gear A When SW20 is pushed by the gear A the waste toner feeding screw lock detection signal 0 is sent to the DC controller PCB caus ing the drum motor M1 to stop and E013 to be indicated on the control panel WTFL 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 74 Waste toner case Waste toner feeding pipe Waste...

Page 133: ...Drum motor M1 AINTR Power switch ON WMUP INTR CNTR1 LSTR STBY CNTR2 Developing clutch CL1 Drum motor M1 AINTR Item setting IDL_SW 0 1 Sequence of operations Photosensitive drum idle rotation disabled Photosensitive drum idle rotation enabled Service Mode 5 Power switch ON WMUP INTR STBY Developing clutch CL1 Drum motor M1 Power switch ON WMUP INTR STBY Developing clutch CL1 Drum motor M1 Power swi...

Page 134: ... and the state ON OFF of the AC driver drum heater drive circuit Table 3 308 The surface temperature of the photosensitive drum is monitored at all times by the thermistor built into the drum heater When the surface temperature of the photo sensitive drum drops below a specific level the output from the comparator circuit goes 1 turn ing ON the trigger circuit This condition causes the triac to go...

Page 135: ... PCB Comparator circuit Thermistor TH2 1 J1 2 Drum heater TP3 SW34 Drum heater switch DHRD J117 B3 AC driver B2 SW48 RL3 Relay unit DC controller PCB MSWON 12VU J2013 2 J2013 1 J2011 7 J2011 8 DC power supply PCB DC power ON OFF control signal latching circuit Main switch PCB J105 B12 B13 J118 A3 J310 5 J310 7 J118 A1 Drum heater half wave full wave switching circuit Trigger circuit ...

Page 136: ...after the drive motor stops when the cleaner home position detecting switch SW5 located in front of the drum guide is turned ON thereby stopping the cleaner If an error in operation is detected for some reason cleaning thereafter will be prevented Such an error may be reset by executing clean ing in user mode The RAM on the DC controller PCB keeps count of the cleaning operations executed on the c...

Page 137: ... wire are the same as those for the pri mary charging wire 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 79 Rear direction Front direction Pre transfer charging wire cleaner home position detecting switch SW6 Wire cleaner Wire Pre transfer charging wire Feeding screw Pre transfer charging wire cleaning motor M7 DC controller Pre t...

Page 138: ... separation charging wire cleaner home position detecting switch SW9 Transfer separation charging wire cleaning motor M8 Transfer separation charging wire cleaning motor drive signal M8FW M8RV J118 B5 B6 Transfer separation charging wire cleaner home position signal TSCHP J111 B8 Rear direction Front direction Transfer separation charging wire cleaner rear detecting switch SW8 Transfer separation ...

Page 139: ...nd buffer path delivery assem blies When making two sided overlay copies on the other hand copy paper is stacked in the duplex ing unit after fixing on the first side For copying on the second side paper is picked up from the duplexing unit and moved through the path used for one sided copies to the copy tray 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN ...

Page 140: ...RIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 82 Sensor No Q36 Q42 Name Multifeeder pick up paper sensor Multifeeder paper trailing edge sensor Sensor No Q35 Q44 Name Paper deck pick up paper sensor Feeding sensor ...

Page 141: ...3 Q11 Q14 Q26 Q24 Q48 Q23 Q33 Q35 Q36 Q42 Q30 Q44 Q16 Buffer assembly Copy tray Delivery assembly No 1 paper deflecting plate Fixing assembly NO 2 feeding assembly Duplexing unit Upper front tray Lower front tray Feeding assembly Photo sensitive drum Registration roller Feeder roller Multi feeder Paper deck Q27 Q46 Q47 Q34 Q7 Figure 3 401 ...

Page 142: ...y the paper deck feeding roller stop clutch CL18 is turned ON thereby forcing the paper deck feeding roller OFF The copy paper is then controlled so that its leading edge match es the image on the photosensitive drum 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 84 Registration roller Pre registration paper sensor SL7 Pick up moto...

Page 143: ...ON SCFW LSTR STBY SCFW SCRV SCRV Pick up motor M16 Scanner Document leading edge sensor 1 Q4 Paper deck pick up clutch CL11 Paper deck feeder roller clutch CL8 Paper deck pick up roller release solenoid SL7 Pre registration paper sensor Q30 Registration roller clutch CL10 Paper deck pick up sensor Q35 Paper deck trailing sensor Q44 Paper deck feeding roller stop clutch CL18 Forward Reverse A4 2 pa...

Page 144: ...NS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 86 Side tray driver PBC Paper absent signal STPE J501 B5 Lifter upper limit signal J501 B2 Paper deck lifter upper limit detecting switch SW10 Paper deck lifter lower limit detecting switch SW11 Llifter lower limit signal 4KLLP J501 A10 Paper deck motor ON signal Paper deck lifter position senso...

Page 145: ...ts block diagram The combination circuit in Figure 3 405 con sists of various logic circuits and it generates the up down switching signal and the paper deck motor ON signal 0 based on the output signals and control signals from the various sensors and switches The two signals are used to operate the motor drive circuit to drive the paper deck motor clock wise or counterclockwise If an overcurrent...

Page 146: ...r limit but will stop at a point where the top surface of the paper stack has lowered a maximum of about 12 5 mm STLLD 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 88 Combination circuit Lifter up down control signal DKDOWN Lifter position signal SLTP J501 B2 Lifter lower limit signal STLLD J501 A10 Door open signal STDO J501 A8 ...

Page 147: ... make sure that only a single sheet of copy paper is fed to the feeding path in which the copy paper is moved as far as the registration roller by the feeding roller The copy paper is made to arch while the reg istration roller is at rest to prevent skew move ment To avoid excessive arching the pre regis tration roller stop clutch CL13 turns ON to force the side pre registration roller OFF The reg...

Page 148: ... DC controller PCB CL5 Lower front tray pick up detection signal LFPS J118 A9 Upper front tray Lower front tray Separation roller Separation roller Pick up feeding roller Pre registration roller Registration rollers Upper holder pick up motor Lower holder pick up roller CL13 Pre registration roller stop signal PRGBCD J115 B2 Feeding roller drive signal FEDCD J112 B3 Upper front tray pick up drive ...

Page 149: ...APON 3 91 STBY INTR Copy Start key ON SCFW SCFW SCRV LSTR SCRV Forward Reverse Reverse Forward Scanner movement Pick up motor M16 Original leading edge 1 sensor Q4 Upper front tray pick up clutch CL4 Feeding roller drive clutch CL9 Upper front tray pick up sensor Q48 Upper front tray pick up releasing solenoid SL15 Pre registration sensor Q30 Upper front paper trailing edge sensor Q24 Pre registra...

Page 150: ...Scanner movement Pick up motor M16 Original leading edge 1 sensor Q4 Lower front tray pick up clutch CL5 Feeding roller drive clutch CL9 SCFW SCFW SCRV LSTR SCRV Lower front tray pick up sensor Q49 Lower front tray pick up releasing solenoid SL11 Pre registration sensor Q30 Lower front paper trailing edge sensor Q23 Forward Reverse Reverse Forward STBY Registration clutch CL10 Pre registration sto...

Page 151: ... cam of the lifter presses the lower limit detect ing switch SW17 SW19 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 93 Open direction Tray case Lifter Tray releasing solenoid SL12 for upper SL13 for lower Tray open closed detection SW14 for upper SW15 for lower Lifter upper limit detection SW16 for upper SW18 for lower Lifter low...

Page 152: ...085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 94 DC controller PCB Front tray lifter position sensor Q21 for upper Q19 for lower Front tray paper absent sensor Q22 for upper Q20 for lower Pick up feeding roller Sensor arm Pick up roller Separation roller Tray case Lifter Hole ...

Page 153: ...M3 for upper M14 for lower and the lifter moves up and down as the cable is taken up on the reel or released from the reel in relation to the direc tion of motor rotation 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 95 Cable Cable Cable Reel Lifter motor Tray case Lifter M Figure 3 411 ...

Page 154: ... a short circuit in the motor the circuit forces OFF the motor ON signal in such cases to turn OFF the motor If the circuit has tuned ON remove the cause and turn OFF and then ON the power switch to reset 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 96 Motor ON control signal Lifter up down control signal Lifter position signal L...

Page 155: ...tate in the opposite direction to move up the lifter 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 97 Open direction Upper lower tray Lifter Tray open switch SWLED1 SWLED2 LED ON signal UTLD LTLD SW16 18 SW14 15 SL12 13 SW17 19 Tray lifter motor drive signal M3 upper lifter motor M14 lower lifter motor Coupling M Dc controller PCB...

Page 156: ...IME AU JAPON 3 98 yyyyyyyyyyyyyy yyyyyyyyyyyyyy yyyyyyyyyyyyyy Tray open closed switch LED Lifter motor M3 M14 Lifter lower limit switch SW17 SW19 Tray open closed detecting switch SW14 SW15 Tray releasing solenoid SL12 SL13 Lifter position sensor Q21 Q19 Tray open switch ON yyyyyyyyyyyyyyyyy yyyyyyyyyyyyyyyyy yyyyyyyyyyyyyyyyy Flashing ON Flashing OFF Tray open Lifter down Lifter up ...

Page 157: ...ould be reversed and the method of controlling the blank exposure lamp The bosses used to actuate the switches are positioned when the copy paper guide plate inside the tray is set to the size of paper 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 99 SW25 SW29 OFF OFF OFF OFF OFF ON ON ON ON ON SW24 SW28 OFF OFF OFF OFF ON OFF ON ...

Page 158: ...ATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 100 Side guide plate rear Rear guide plate Width detecting switch Length detecting switch Side guide plate front ...

Page 159: ...aper The feeding roller starts to rotate when the side tray pick up timing clutch CL8 is ON to for ward copy paper to the registration roller The multifeeder paper trailing sensor Q42 is used to detect the passage of copy paper over the feeding roller initiating the second and subse quent sheets of copy paper 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN ...

Page 160: ...he length of paper when the multifeeder is used on the other hand is identified the paper size whether large or small in relation to the signal in which the multifeeder large size detection sensor Q41 remains ON 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 102 Slide guide rear Slide guide front Variable resistor Multifeeder tray ...

Page 161: ...d copy Page separation one sided copying Two sided original overlay copy Page separation overlay copy Page separation two sided copy One sided original overlay copy Copying to 1st side Copying to 2nd side Copying to 1st side Copying to 2nd side Copying to 1st side Copying to 2nd side Copying to 1st side left Copying to 2nd side right Copying to 1st side left Copying to 2nd side right Copying to 1s...

Page 162: ... sub roller lowers about 1 sec after the No 2 feeding assembly inlet sensor Q12 detects copy paper In continuous copying the pick up assembly locking solenoid SL8 is released turned OFF after the first sheet of copy paper has been fed by the sub feeding roller so that the first sheet of the stack is fed somewhat in advance the pick up assembly locking solenoid SL8 is locked turned ON to operate th...

Page 163: ...per sensor Q30 Original leading edge 1 sensor Q4 No 2 feeding assembly inlet sensor Q12 Fixing assembly sensor Q10 Paper reversing assembly inlet sensor Q11 No 1 paper deflecting plate drive solenoid SL3 Paper sub roller down solenoid SL10 Holding tray paper sensor Q27 Paper jogging guide drive motor M11 No 2 paper deflecting plate drive solenoid SL2 INTR SCFW SCRV SCFW SCRV LSTR STBY 2 1 1 Paper ...

Page 164: ...y paper and sends it to the No 2 feeding assembly and then to the duplexing unit The sub feeding roller is moved down on the stack of copy paper each time copy paper is sent for copying on the first side thereby making sure that the sheets are stacked properly The sub roller lowers about 1 sec after the No 2 feeding assembly inlet sensor Q12 detects copy paper 3 OPERATIONS AND TIMING COPYRIGHT 199...

Page 165: ...tch CL8 Registration roller drive clutch CL10 Paper deck pick up sensor Q35 Pre registration paper sensor Q30 Original leading edge 1 sensor Q4 No 2 feeding assembly inlet sensor Q12 Fixing assembly sensor Q10 Paper reversing assembly inlet sensor Q11 No 1 paper deflecting plate drive solenoid SL3 Paper sub roller down solenoid SL10 Holding tray paper sensor Q27 Paper jogging guide drive motor M11...

Page 166: ...opy paper The feeding roller then moves the copy paper as far as the registration roller When the original leading edge detection sig nal is generated the registration roller starts to rotate for copying on the second side Since the No 1 paper deflecting plate remains in the bottom position copy paper after fixing is allowed to move to the copy tray 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC...

Page 167: ...ontrolling the output timing of the pulse signals A B and When the re pick up roller is at rest the home position sensor Q87 monitors the re pick up roller to find out whether it is at a specific position each time it makes a single rotation the output timing of the pulse signals A B and is kept to a specific timing and the power supply is switched to 5 V to keep the re pick up motor Table 3 405 B...

Page 168: ...LY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 110 Original leading edge 1 sensor Q4 Re pick up clutch CL6 Re pick up motor M25 Re pick up releasing solenoid SL8 Registration roller clutch CL10 Re pick up sensor Q26 Pre registration paper sensor Q30 Buffer assembly delivery sensor Q60 INTR SCFW SCRV SCFW SCRV LSTR STBY Re pick up paper trailing edge sensor Q33 ...

Page 169: ...otates counterclockwise to stop the paper jog ging guide at a position about 3 mm away from the size of the copy paper each side and to keep it waiting for copy paper When copy paper arrives at the holding tray assembly the motor M11 rotates clockwise moving the guide plate to and from 3 mm and counterclockwise moving the guide plate back and forth 3 mm to keep the paper in order When the last cop...

Page 170: ...PRINTED IN JAPAN IMPRIME AU JAPON 3 112 DC controller PCB M11 Paper jogging guide drive motor CW direction CCW direction Paper size guide plate Light blocking plate Q28 Paper jogging guide home position detection 3mm 3mm 3mm 3mm CW rotation CW rotation CCW rotation Paper jogging guide plate rear Copy paper Paper jogging guide front Last copy YES NO ...

Page 171: ... Each paper deflecting plate shifts up as soon as copy paper reaches the paper reversing assembly inlet sensor Q11 to form an appropri ate path q Equivalent of A4 B5 LTR w Equivalent of A4R LTRR e Equivalent of B4 LGL r Equivalent of A3 279x432 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 113 Length of copy paper SL4 SL5 SL6 q 18...

Page 172: ... is selected 2 Operation Skipping consists of the following series of operations 1 Every other original placed in the RDF D1 is copied the copy paper after copying is stacked in the duplexing unit The RDF D1 detects the number of originals when the last original has been fed to find out whether there is an even or an odd number of originals This is to determine how copies should be delivered 2 Tho...

Page 173: ...opy is reverse delivered without copying on its back u The 3rd original is picked up but is not copied The 3rd copy is picked up from the duplexing unit and fed y All originals are returned to the original tray and the RDF finds out that there is an odd number of originals t The 1st original is copied The 3rd copy is switched back and stacked in the duplexing unit o The 1st copy is picked up from ...

Page 174: ...opied skipped but the 2nd and the 1st originals are picked up i The 4th original is picked up once again and the 4th copy is picked up from the duplexing unit u When all originals have been circulated the RDF finds out that there is an even number of originals y The 1st original is not copied skipped but the original is delivered to the original tray t The 2nd original is copied The 4th copy is sw...

Page 175: ...ure is 28 C or more regardless of the length of time from power on Control temperature during standby 190 C Control temperature during copying 195 C Control temperature during energy saver mode 185 C May be varied in additional function mode Keep in mind that due to avoid not to be separated the transparencies when using the non recommended transparencies 1 is set for OHP_TEMP in service mode and ...

Page 176: ...signal PDP2 Cleaning belt length detection signal CBOUT Cleaning belt length detection signal CBOP Cleaning belt drive signal CLBSD SL1 Thermistor signal TH1 Main heater drive signal MHOND Sub heater drive signal SHOND SSR AC driver Q9 Fixing assembly delivery roller Cleaning belt level detecting lever Q8 Q10 Cleaning belt Thermistor TH1 Thermal switch AC power supply Lower fixing roller Q7 Upper ...

Page 177: ...DP5 No 2 feeding assembly inlet paper detection signal PDP4 Paper reversing assembly outlet paper detection signal PDP6 Delivery paper detection signal PDP7 Paper reversing assembly inlet paper detection signal PDP3 Switch back CW rotation drive signal SBFCD Fixing drive stop signal FXDSD Switch back reversal drive signal SBRCD Q14 CL2 CL3 SL17 Clutch M17 Fixing motor Fixing drive stop solenoid Q1...

Page 178: ...34 The face of the cleaning belt is intended to apply silicone oil to the upper fixing roller and the back to clean the roller 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 120 Cleaning belt Upper fixing roller Back of belt Face of belt Cleans the face of the roller Applies silicone oil Figure 3 434 ...

Page 179: ...and sensors when the lever detects the short notch and the long notch 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 121 Q9 OFF OFF ON Q8 OFF ON OFF Display on control panel Indicates a warning when SW921 on the jam indicator PCB is pressed in service mode im mediately after de tection the length is about 5600 mm equivalent of abou...

Page 180: ...oller by the thermistor reciprocating mechanism The drive for the mechanism is obtained from the cleaning belt solenoid SL1 through a one way arm Figure 3 436 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 122 Cleaning belt drive solenoid SL1 One way arm Reciprocating cam Upper fixing roller Thermistor 12mm Thermistor ...

Page 181: ... the axial direction to prevent damage to the roller by the claw 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 123 Separation claw 3mm Separation claw Upper fixing roller Reciprocating cam Fixing assembly delivery roller M17 Fixing motor Figure 3 437 ...

Page 182: ... IN JAPAN IMPRIME AU JAPON 3 124 200 C 195 C 190 C 180 C 170 C SL1 Cleaning belt drive solenoid Delivery detection Q15 Wait indicator Fixing motor M17 Sub heater H2 Main heater H1 AINTR WMUP INTR CNTR1 CNTR2 LSTR STBY INTR AER SCFW SCRV LSTR STBY Power switch ON 170 C 180 C 190 C Copy Start key ON ON in green ON in orange Figure 3 438 ...

Page 183: ... 125 Sequence of Operations 2 2 45 min from power on and in energy saver auto power off STBY INTR AER SCFW SCRV LSTR STBY 45 min Copy Start key ON Energy Saver key ON Auto power off ON 1 ON OFF Main heater H1 Fixing heater M17 Energy Saver indicator 1 May be varied in user mode 200 C 190 C 180 C 170 C Figure 3 439 ...

Page 184: ...at the same time the fixing assembly lock ing solenoid SL16 is powered so that the fixing assembly cannot be removed This is to prevent tearing of the paper if it straddles over the fixing assembly and the deliv ery assembly Advise the user to remove such a jam by opening the delivery door 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAP...

Page 185: ... three as selected in service mode FIX TEMP 5 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 127 Normal speed return temperature 170 C 170 170 Normal speed return temperature 155 C 155 155 Normal speed return temperature 165 C 165 165 Normal speed return temperature 160 C 160 160 Copies min 71 66 Stop Start tempera ture 155 C 150 1...

Page 186: ... heater relay RL1 turns OFF The sub heater relay RL2 turns OFF The fixing assembly detection signal turns ON The main heater drive signal turns OFF The sub heater drive signal turns OFF The main heater turns OFF The sub heater turns OFF 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 128 SSR Main heaterH1 Main heater relayRL1 Sub he...

Page 187: ...g lamp ON signal LRD and the scanning lamp ON detection signal LAA If the scanning lamp is ON in the absence of the scanning lamp ON signal an error will be identified If such happens the gate array informs the master CPU on the DC controller of a scanning lamp error activation and send the power switch OFF signal to the power supply unit This condition powers the relay in the relay unit to turn O...

Page 188: ...ler rises abnormally When the power switch OFF signal occurs the relay in the relay unit is powered to turn OFF the main relay RL3 thereby stopping AC power sup ply auto power off PWOFF PWOFF 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 130 SSR Main heaterH1 AC driver 100V model only Sub heaterH2 Main heater drive signal MHOND Su...

Page 189: ...sition sensor Q5 scan ner C F F position sensor Q6 The gate array serves to reset the DC con troller in response to the motor error stop detec tion signal ECDRER 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 131 RDF DC controller PCB M2 M3 M2 control circuit M3 drive circuit Q38 To RDF Error detection circuit Gate array Reset IC R...

Page 190: ... copy tray Copying Mode for Reversal Delivery 1 Skipping mode for an odd number of originals 2 C F F in use a Copies stacked with face down output OFF skipping odd number of originals Figure 3 445a c Copies stacked with reversal delivery OFF C F F in use Figure 3 445c b Copies stacked with reversal delivery ON skipping odd number of originals Figure 3 445b d Copies stacked with reversal delivery O...

Page 191: ...ates Q11 ON CL2 ON Figure 3 446a When Q11 turns OFF i e the trailing edge of the copy paper has not moved past the No 2 deflecting plate CL2 turns OFF Figure 3 446b Immediately after CL2 turns OFF CL3 turns ON to deliver the copy paper Figure 3 446c M1 CL3 OFF CL2 ON No 1 paper deflecting plate Upper fixing roller Q11 ON No 2 paper deflecting plate Copy paper M1 CL3 OFF CL2 OFF Q11 OFF M1 CL3 ON C...

Page 192: ...tor When the power is turned ON after removing the jam post jam sequence will be executed in preparation for the next copy The microprocessor assumes the presence of a jam under the following conditions a Copy paper is at any of the sensors at power on during wait up or during stand by b Copy paper does not reach a specific sen sor within a specific period of time delay jam c Copy paper arrives at...

Page 193: ...straddling between front tray and feeding path Delay stationary timing jams Paper straddling between front tray and feeding path Sensor No Q26 Q27 Q30 Q33 Q34 Q46 Q47 Q48 Q49 Q60 Name Re pick up sen sor Duplexing unit paper sensor Pre registration paper sensor Re pick up paper trailing edge sen sor Buffer assembly paper sensor Vertical path 0 paper sensor Vertical path 1 paper sensor Upper front t...

Page 194: ... AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 136 Q60 Q15 Q10 Q49 Q12 Q13 Q11 Q14 Q26 Q24 Q48 Q23 Q33 Q35 Q36 Q42 Q30 Q44 Q16 Q27 Q46 Q47 Q34 Q7 Figure 3 447 ...

Page 195: ...ey ON Upper front tray pickup paper sensor Q24 Lower front tray pick up paper sensor Q23 Multifeeder paper trailing edge sensor Q42 Re pick up sensor Q26 INTR SCFW SCRV SCFW SCRV Jam indicator ON Normal Error 0 78 sec approx 0 12 sec approx Paper deck feeding sensor Q44 0 14 sec approx 0 37 sec approx 0 56 sec approx Registration delay jam check Registration paper sensor Q30 SCFW LSTR Jam indicato...

Page 196: ... Upper front tray pick up sensor Q48 Jam indictor ON Normal Jam check Pick up motor m16 INTR SCFW SCRV SCFW Upper front tray paper trailing edge sensor Q24 Copy Start key ON Error 0 7 sec approx 0 6 sec approx Lower front tray pick up clutch CL5 Lower front tray pick up sensor Q49 Jam indicator ON Normal Jam check Pick up motor M16 INTR SCFW SCRV SCFW Lower front tray paper trailing edge sensor Q2...

Page 197: ... JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 139 5 Re Pick Up Delay Jam Figure 3 457 Re pick up clutch CL6 Re pick up sensor Q26 Jam indicator ON Normal Jam check Pick up motor M16 INTR SCFW SCRV SCFW Re pick up paper trailing edge sensor Q33 Copy Start key ON Error ...

Page 198: ...y Jam Figure 3 459 Registration roller clutch CL10 SCFW LSTR Jam indicator ON SCRV SCFW SCRV Error Jam check Pick up motor M16 Fixing assembly paper sensor Q10 1 2 sec 9approx Normal Fixing assembly outlet delay jam check SCFW LSTR Jam indicator ON SCRV SCFW SCRV Error Jam check Pick up motor M16 Fixing assembly paper sensor Q10 Normal I I Varies depending on the length of copy paper ...

Page 199: ...ng assembly paper sensor Q10 Jam indicator ON I SCFW Normal Error Jam check Pick up motor M16 Delivery sensor Q15 SCRV LSTR I In normal delivery mode about 0 16 sec In face down output varies depending on the length of copy paper Delivery delay jam check Jam indicator ON I SCFW Normal Error Jam check Pick up motor M16 Delivery sensor Q15 SCRV LSTR I Varies depending on the length of copy paper ...

Page 200: ...2 11 Buffer Assembly Delay Jam Figure 3 463 Jam indicator ON SCFW Normal Error Jam check Pick up motor M16 Delivery sensor Q15 SCRV LSTR Buffer assembly delivery sensor Q60 Buffer assembly delay jam check Jam indicator ON I SCFW Normal Error Jam check Pick up motor M16 Buffer assembly paper sensor Q15 SCRV LSTR I Varies depending on the length of copy paper ...

Page 201: ...aper sensor Q10 Jam indicator ON I SCFW Normal Error Jam check Pick up motor m16 Paper reversing assembly inlet sensor Q11 SCRV LSTR I In normal delivery mode about 0 16 sec In face down output varies depending on the length of copy paper Paper reversing assembly inlet sensor Q11 Jam indicator ON Normal Error Jam check Pick up motor M16 Paper reversal sensor Q13 SCRV LSTR 0 12 sec approx ...

Page 202: ...sing assembly inlet delay jam check Jam indicator ON I SCFW Normal Error Jam check Pick up motor M16 Paper reversing assembly inlet sensor Q11 SCRV LSTR I Varies depending on the length of copy paper Paper reversing assembly inlet delay jam check Jam indicator ON I Normal Error Jam check Pick up motor M16 Paper reversal sensor Q13 SCRV LSTR I Varies depending on the length of copy paper ...

Page 203: ...ationary Jam Figure 3 469 Jam indicator ON Normal Error Jam check Pick up motor M16 Switch back reversing clutch CL3 SCRV LSTR Reversing assembly outlet sensor Q14 1 12 sec approx Paper reversing assembly inlet delay jam check Jam indicator ON I Normal Error Jam check Pick up motor M16 Paper reversing assembly outlet sensor Q14 SCRV LSTR I Varies depending on the length of copy paper ...

Page 204: ...et Stationary Jam Figure 3 471 Paper reversal sensor Q13 Jam indicator ON SCFW Error Jam check Pick up motor M16 No 2feeding assembly inlet sensor Q12 LSTR Normal Paper reversing assembly inlet sensor Q11 1 sec approx No 2 Feeding assembly delay jam check Jam indicator ON I Normal Error Jam check Pick up motor M16 No 2 feeding inlet sensor Q14 SCRV LSTR I Varies depending on the length of copy pap...

Page 205: ...ure 3 501 2 LCD Processing The microprocessor on the DC control PCB sends commands to the LCD controller as instructed by stored programs The LCD in response interprets and executes such com mands The LCD controller serves to turn ON and OFF indications and control various settings The LCD control further is used to write dis play character codes to the RAM for display mem ory in sequence The RAM ...

Page 206: ...N IMPRIME AU JAPON 3 148 Figure 3 502 Control panel controller PCB Display memory LCD controller DC controller PCB Micro processor Buffer LCD panel Touch panel Key control panel LED display Micro processor Row driver Row driver Row driver Column driver Column driver Column driver Column driver ...

Page 207: ... Input The keys on the touch switch panel and the control panel controller PCB are connected as shown in Figure 3 502 The touch switch panel consists of two glass sheets coated with transpar ent conducting membranes bonded with spacers in between it has keys in 15 columns and 20 rows in a specific pattern When the surface of the top glass sheet is pressed the contact between the two sheets will ca...

Page 208: ...3 601 shows the function of each fan the filter used and the orientation of the fan Figure 3 602 shows when each fan turns ON Figure 3 601a Figure 3 601b 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 150 FM9 FM1 FM12 FM10 FM15 FM8 FM5 FM3 FM4 FM11 FM2 FM6 FM14 ...

Page 209: ... Ozone air Ozone air Air Air Air Air Air Description Cools the scanner Prevents internal overheating caused by the fixing heater Exhausts vapors of silicone oil Draws ozone generated by the prima ry pre transfer transfer separation char ging assembly Draws copy paper from below the sepa ration charging assembly so as to assist separation Draws copy paper on the feeding belt Draws stray toner from ...

Page 210: ...ON Copy Start key ON Power switch OFF Scanner cooling fan 1 FM1 Developing fan FM5 Scanner motor cooling fan FM8 Primary charging assembly dust proof fan FM9 Scanner cooling fan 2 FM10 Scanner cooling fan FM11 Transfer charging assembly dust proof fan FM15 15 min approx Developing assembly heat exhaust fan FM14 Air exhaust fan FM3 Feeding fan FM4 15 min approx 15 min approx Each fan continues to r...

Page 211: ...y circuit 24VU power supply circuit DC controller PCB Drum motor control PCB Pick up motor control PCB Fixing motor control PCB Scanner motor control PCB M1 M2 M16 M17 Drum motor Pick up motor Fixing motor Scanner motor Sorter RF HVT a b c J118 A6 J118 A4 J118 A1 J118 A2 J118 A3 PW OFF MSW ON AC1 D AC0 ON REMOTE C F F RL3 RL4 5VR output 12VU output 24VU output 24VU output 38VU output 24VR output 3...

Page 212: ... AC input line c This condition will stop the output of the 24VR and the 38VU power supply circuits The 230V model however does not have SW21 At the same time the DC controller PCB sends the power unit remote signal 0 to stop the 24VU power supply 24VUN for error detection for the SSR and the lamp regulator AC driver circuit also in the case of the 100V model however will remain If copying does no...

Page 213: ... turn ON before the AC input fuse blows Turning ON and OFF the AC power supply of the power unit repeatedly while a short circuit exists in the power supply unit can blow the fuse in the AC input Replace the lithium battery only with the one listed in the Parts Catalog Use of another battery may present a risk of fire or explosion The battery may pre sent a fire or chemical burn hazard if mis trea...

Page 214: ... CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 156 Power plug connected Power switch ON Door switch OFF ON Power switch OFF Door switch OFF ON Auto power off mode Power plug disconnected MSW OFF MSW ON RL3 5VR 12VU2 REMOTE 24VU 24VUN AC1D AC0ON RL4 24VR 38VU 12VU1 Figure 3 702 Table 3 702 38VU 24VU 24VUN 12VU1 12VU2 5VR Drum pick up fixing scanner motor and etc driving voltage S...

Page 215: ...ng circuit F101 Internal relay Rectifier smoothing circuit Switching regulator IC 2ndary rectifier smoothing circuit 38VU 24VR 24VR constant voltage 38VU voltage detection 24VU Circuit breaker 24VUN 24VU voltage detection REMOTE 12VU voltage detection 12VU2 GND AC0ON 5VR constant voltage 5VR DC power supply ON OFF control signal latch circuit Rectifier smoothing circuit 2ndary rectifier smoothing ...

Page 216: ...it detection circuit DC power supply circuit Fixing sub heater 100V model only CB1 SW34Drum heater switch Drum heater SSR 24VU power supply circuit 5VR power supply circuit 12VU power supply circuit 2 38VU power supply circuit 24VR power supply circuit 12VU power supply circuit 1 DC power supply ON OFF control signal latch circuit Main switch PCB SW32 Fixing assembly detecting switch 12VU2 12VU1 2...

Page 217: ... original pages for copying See Figure 3 801 for a block diagram of the signals exchanged between copier and C F F Q158 master Q170 IPU Q4 IPC Q1 Microprocessor C F F lamp Lamp regulator DC controller PCB copier C F F control PCB Lamp switching signal LINT AC power supply Original leading edge signal CFIN CFOUT Figure 3 801 Table 3 801 Signal CFOUT CFIN Original leading edge signal CFLE Descriptio...

Page 218: ...eding switch PCB 1 2 3 J101 J4 2 3 1 input DOWD Detects the width of continuous paper analog signal VR1 Original width detection 5V 7 input HPSET The C F F is at home position 0 8 MS4 C F F home position switch input COSET When the upper cover is closed 1 6 Cover open closed detecting switch MS3 5 input CFFST When the C F F is set to the copier 1 MS2 4 3 C F F set detecting switch MS1 input DOSET ...

Page 219: ...59 Copier C F F DC controller DC power supply PCB Line switching signal Lamp regulator DC power supply PCB Scanning lamp C F F lamp 24VU 0V 0V 24VU AC power TS1 MS5 SW30 24VU To sorter If the C F F is not at home position MS turns OFF to cut off the power to the sorter thereby prohibiting sorter operation When the C F F is installed removal of the connector cover opens SW30 OFF the power to the so...

Page 220: ...ME AU JAPON 3 162 C F F controller PCB C F F set signal CFFST C F F home position signal HPSET Original normal feeding signal DFWD Original reverse feeding signal DRVS Original detection signal DOTD C F F motor clock signal MCLK Original width detection signal DOWD Original set signal DOSET analog Cover open closed detection signal COSET Fan drive signal FM1 2D Fan rotation detection signal FMA C ...

Page 221: ...ntinuous paper in normal direction Figure 3 806 3 The original sensor PI1 detects the continu ous paper and the C F F motor PM1 rotates counterclockwise so that the paper stops where it does not cover the C F F s white plate reference is to PI1 Figure 3 807 Figure 3 805 Figure 3 806 Figure 3 807a Figure 3 807b Continuous paper C F F lamp Original sensor PI1 Index Delivery roller Tractor C F F mirr...

Page 222: ... 6 The C F F lamp illuminates the continuous paper and AE measurement p 3 168 is exe cuted Figure 3 810 7 The C F F motor PM1 rotates counterclock wise and moves the continuous paper to a point where its leading edge can be read Figure 3 811 Figure 3 808 Figure 3 809 Figure 3 810 Figure 3 811 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU ...

Page 223: ...es The above operations are repeated until the last page is copied Figure 3 813 The sequence of operations involved in poten tial measurement and AE measurement are executed for the first page of continuous paper only and not executed at the start of operation after jam removal or the like Figure 3 812 Figure 3 813a Figure 3 813b Figure 3 813c 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON...

Page 224: ...F lamp LA2 Cooling fan FM1 FM2 C F F motor PM1 Original sensor PI1 Original leading edge signal CFLE Zoom lens Scanner movement C F F position sensor Q6 Surface potential measurement AE measurement Registration clutch CL10 C F F mirror motor M15 C F F mirror home position sensor Q32 Copy Start key ON INTR CNTR FW AER RV COPY RV COPY RV COPY CW Ratio set Reverse CCW Copier C F F ...

Page 225: ...rther left C F F posi tion than normal then the C F F mirror shifts up to form the optical path for the C F F 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 167 C F F C F F lamp Continuous paper Dust proofing glass plates Zoom lens C F F mirror No 1 2 3 mirror position with C F F in use Photosensitive drum No 4 mirror Copyboard gla...

Page 226: ...rface potential measurement it has received The C F F lamp is controlled by the copier s lamp regulator and the power is switched to the scanning lamp or the C F F lamp by the relay cir cuit inside the lamp regulator The intensity control mechanism for the C F F lamp is operated by the intensity adjustment sig nal LINT used for the scanning lamp of the copi er For this reason the intensity of the ...

Page 227: ...cted so that the entire original page may be copied on the selected paper Table 3 802 When the C F F is used however the ratio must be between 64 and 100 The reproduction ratio in the axial direction of the drum is varied by the lens the reproduction ratio in the original feeding direction on the other hand is by varying the speed of feeding the orig inal The lens is moved so that the image of the...

Page 228: ...1A or FM2A signal goes 0 the machine will be stopped and E44 will be indicated on the copier s control panel If such happens remove the cause and turn OFF and then ON the copier s power switch to reset The fans continue to rotate for about 5 min after the end of copying C F F operation 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3...

Page 229: ...achine will be stoped if the holes are not identified at specific time inter vals when the paper is moved at a specific speed assuming the presence of a feeding fault original jam You may set the machine in service mode so that each hole may be checked instead of every other hole 5 3 OPERATIONS AND TIMING COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 171...

Page 230: ...63 and 50 Figure 3 902 Select ERASE and enter 1 in service mode Adjust by moving the paper deck and the hor izontal registration adjusting plate of the upper lower front tray so that the distance between the edge of the copy image and the edge of copy page is 0 1 5 mm in Direct Figure 3 903 After adjustment enter 0 If ERASE in service mode is set to 0 with standard frame erasing ON the left right ...

Page 231: ...ce mode and enter 1 Remove the front cover of the duplexing unit Adjust by moving the guide plate of the re pick up assembly so that the distance between the edge of the copy image and the end of copy paper is 0 2 0 mm in Direct After adjustment enter 0 Figure 3 905 Figure 3 906 5 Screw Screws 4 Left Right Registration duplexing unit position 2nd side of two sided overlay copy Screws 0 2 0mm 0 2 4...

Page 232: ...as changed from F9 to F5 If the display alternates between F5 and F9 indicating an adjustment error start over 9 Press the Reset key twice to end service mode After executing AE automatic adjustment make copies of a dark original e g newspaper 1 Open the front door and insert the door switch actuator into the door switch assembly 2 Press the service mode switch with a hex key 3 Select AE_SLOP in s...

Page 233: ...rnates between F5 and F9 indicating an adjustment error start over 11 Press the Reset key twice to end service mode Reference A press on the Copy Start key during CFFAE automatic adjustment will not initi ate copying operation or C F F feeding operation After executing CFFAE auto adjustment make a copy of a user original If the copy is foggy or too light perform the following steps Colored origina...

Page 234: ...se different points of mea surement requiring adjustment for both AE Adjustment for Left Pick Up 1 Open the front door and insert the door switch actuator into the door switch assembly 2 Press the service mode switch with a hex key 3 Select RFAE_F5L in service mode 4 Place the Test Sheet in the RDF 5 Adjust RFAE_F5L 1 Decreasing the setting in adjustment mode causes copies of the Test Sheet to be ...

Page 235: ... Reset key twice a Outline When image faults occur it is important to find out if the cause is in the latent image formation block including the photosensitive drum and the potential control system or in the developing transfer mechanism To do so in turn requires a check to make sure that the surface potential is correct Use service mode to make such a check b Disabling Automatic Control You can c...

Page 236: ...r switch 2 Remove the upper cover and the upper right cover 3 Disconnect the connector J4 from the potential measurement PCB 4 Short J132 1 and J132 2 on the DC con troller PCB with a jumper wire 5 Insert the door switch actuator into the door switch assembly and turn ON the power 6 Select the screen showing DPOT drum sur face potential in service mode 7 Check to make sure that DPOT on the message...

Page 237: ... DC con troller PC are normal 11 Turn OFF the power switch 12 Remove the potential sensor checking electrode 13 Install the blank exposure lamp assembly 14 Turn ON the power switch 1 Start service mode and check the temperature humidity on the control panel Take notes of the readings Data A RTMP C data A1 HUM data A 2 2 Press the Reset key twice and turn OFF the power switch 3 Remove the environme...

Page 238: ...e and indi cates in the upper left corner of the mes sage display Figure 3 1001 service mode switch 3 Press the key twice to open the Selection screen Then select the mode Table3 1001 you want to check or adjust 4 Press the key to select the appropriate screen 5 Make a check or adjustments 6 End service mode Press the Reset key once to end the current mode Press the Reset key twice to end service ...

Page 239: ...the label You must always enter the values recorded on the label in the RAM on the DC controller PCB whenever you have replaced the DC controller PCB or the RDF controller PCB or cleared the RAM Further be sure to record any new values you used in the field Figure 3 1002 TYP DRUM_SEL ATM BRAKE_SC LE_BLANK MULT_SZ PRETRANS TRN_ 1 TRN_ 2 SEP_ 1 SEP_ 2 REGIST_H LIGHT_ 5H LIGHT_ 5PH GLEAM_ 5H AE_SLOP ...

Page 240: ... 430V DVDT 450V VL1T 180V DVAE 200V DVDM 460V VL1M 175V VL2M 175V 1 DISPLAY Item Description Remarks DPOT Drum surface potential Unit V VDT Indicates the VD dark area potential target value VL 1 T Indicates the VL1 light area potential target value VAE Indicates the average surface potential during AE measurement VDM Indicates the VD dark are potential measurement value VL 1 M Indicates the VL1 li...

Page 241: ... 240V model WIRE Indicates a value other than 0 if the primary pre transfer transfer See Table 3 1002 separation charging wire cleaner stops at a point which is not its home position Note 1 PLMT Indicates 1 if the current reaches the upper limit or the lower limit 0 Normal when current control is imposed on the primary charging assembly 1 Error LLMT Indicates 1 if the current of the ON voltage for...

Page 242: ... home position and the indication will change to 0 Wire cleaning will be prohibited unless you execute wire cleaning This state will remain even when the power switch is turned OFF ON table 3 1002 3 OPERATIONS AND TIMING 3 184 Indication Charging assembly with an error in the cleaner 0 Normal end 1 Primary charging assembly 2 Pre transfer charging assembly 3 Primary charging assembly pre transfer ...

Page 243: ... IPSC 0100µA BIAS 0180V 1 DISPLAY Item Description Remarks PC Indicates the current value for the primary charging assembly Unit µA PTC Indicates the current value for the pre transfer charging assembly Unit µA TC Indicates the current value of the transfer charging assembly Unit µA SC Indicates the current value for the separation charging assembly Unit µA BIAS Indicates the DC value of the devel...

Page 244: ...0 DCMET_2 0 DCMET_3 0 DCMET_4 0 1 DISPLAY Item Description Remarks DCMET_1 Indicates the output value of original size detection 1 0 1 DCMET_2 Indicates the output value of original size detection 2 0 1 DCMET_3 Indicates the output value of original size detection 3 0 1 DCMET_4 Indicates the output value of original size detection 4 0 1 ...

Page 245: ...ller PCB Q115 Indicates the version No of the internal processor Q115 of the slave CPU Q937 Indicates the version No of the internal processor Q937 of the controller CPU DF Indicates the version No of the ROM on the RDF controller PCB SORT 1 Indicates the version No of the ROM on the sorter controller PCB SORT 2 Indicates the version No of the ROM on the sorter controller PCB CFF Indicates the ver...

Page 246: ...sorter B_ER 3 Indicates the third latest diagnosis code for the copier RDF C F F and sorter B_ALARM Indicates a number other than 0 when the web runs out or the waste toner container full 0 normal 1 web out 2 toner full 3 web out and toner full PRINT_JAM Indicates the times that the copier jam are occured DH_JAM Indicates the times that the jams of the RDF and C F F are occured 3 OPERATIONS AND TI...

Page 247: ...the respective jam e g if September 4 0904 CCCC Indicates the time of the respective jam e g if 11 45 1145 DDDD Indicates the jam return time i e the time at which the machine started standby after jam removal E Indicates the machine classification of the respective jam 0 if copier 1 if feeder 2 if sorter 3 if C F F 4 if power ON jam FFFF Indicates the location of the respective jam in code if mul...

Page 248: ...up detection Q36 0C Paper deck pick up detection Q35 0D Upper front tray pick up paper trailing edge detection Q24 0E Lower front tray pick up paper trailing edge detection Q23 0F Re pick up paper trailing edge detection Q33 10 Upper side tray paper trailing edge detection Q66 11 Middle side tray paper trailing edge detection Q70 12 Lower side tray paper trailing edge detection Q74 13 Multifeeder ...

Page 249: ...lating lever made an idle rotation without coming into contact with an original After left pick up there is a difference of 8 mm or more in terms of length between when the original moved past S3 and when it moved past S4 After advance edge feeding S3 is free of an original S3 does not detect an original after feeding 50 mm in terms of length after the pick up motor M1 has turned ON S3 does not de...

Page 250: ...f length S20 detects an original for 750 mm or more in terms of length After the belt motor M3 has turned ON S20 does not detect an original after feeding for 532 mm or more in terms of length After S20 has detected an original the original does not move past S19 after feeding feeding direction length x 1 5 mm or more in terms of length S5 detects an original after the belt motor M3 has rotat ed c...

Page 251: ...er when the RDF is not ready for pick up At the start of operation an original is detected in the paper path An L size original is detected in image composition mode 1 In stream reading mode the speed of the belt motor M3 is lower than specified when the leading edge of the original reaches the point where exposure starts 2 In stream reading a command arrives from the copier requesting of the belt...

Page 252: ...e Press the key or enter the appropriate address number on the numeric keypad to select the appropriate screen The screens will show the state of input or output ports Screen 2 1 Screen 2 2 2 3 OPERATIONS AND TIMING 3 194 15 8 7 0 0 1 0 0 1 1 0 0 0 1 1 1 1 0 0 0 2 I O DISPLAY P001 P034 0069 H 2 I O DISPLAY ...

Page 253: ... Q71 signal 10 Middle side tray pick up detection Q69 signal MSPS J602 B11 1 Paper present 11 Middle side tray paper trailing edge MSPRDS J602 A5 1 Paper present detection Q70 signal 12 Lower side tray paper detection Q75 signal LSPE J603 B11 1 Paper present 13 Lower side tray pick up detection Q73 signal LSPS J602 B14 1 Paper present 14 Lower side tray paper trailing edge detection LSPRDS J603 A2...

Page 254: ...2 Side tray pick up motor M22 drive signal J605 B13 1 M22 ON 3 Fixing motor M17 drive signal FMD J111 B2 1 M17 ON 4 Scanner forward signal M2 M2F R J124 A4 1 M2 ON FD 5 Scanner motor M2 drive control signal M2ON J124 A3 1 M2 ON 6 Copier ratio select signal 0 M2MDO J124 A7 7 Copier ratio select signal 1 M2MD1 J124 A6 8 Copier ratio select signal 2 M2MD2 J124 A5 9 Scanner Uncontrolled signal M2CLK J...

Page 255: ...ection Q27 signal PDP12 J120 A8 1 Paper present 7 Re pick up detection Q26 signal PDP11 J120 A6 1 Paper present 8 Re pick up paper trailing edge detection PDP14 J112 A11 1 Paper present Q33 signal 9 Fixing assembly paper detection Q10 signal PDP2 J125 A8 0 Paper present 10 Delivery detection Q15 signal PDP7 J127 A10 0 Paper present 11 Buffer assembly delivery detection Q60 BDS J123 A9 1 Paper pres...

Page 256: ...otor M18 drive signal HMD J124 B2 1 ON 5 Developing clutch CL1 drive signal DVLD J126 B5 1 ON 6 7 Scanning lamp LA1 ON signal LRD J122 5 1 ON 8 Scanning lam select LA1 signal LASEL J122 2 1 LA1 ON 9 Blank exposure ON signal J107 7 1 Data send 10 Blank strong signal J107 5 0 Intensity up 11 Fixing assembly locking solenoid SL16 FIXLK J103 B11 1 ON drive signal 12 Main heater H1 drive signal MHOND J...

Page 257: ... ON signal MSWON J118 A5 0 Power on P008 0 Registration roller drive clutch CL10 drive RGCD J121 A4 0 CL10 ON output signal 1 Registration roller drive clutch CL10 stop RGCD J121 A4 0 CL10 OFF signal 2 Switch back CW rotation CL2 drive signal SBFCD J126 B7 1 CL2 ON 3 Switch back CCW CL3 drive signal SBRCD J126 B9 1 CL3 ON 4 S size paper deflecting plate SL4 drive signal SDSD J117 B6 1 SL4 ON 5 M s...

Page 258: ...ction signal AC1D J118 A4 12 Jam indicator display back light ON signal J106 A6 1 ON 13 Toner stirring motor M13 drive signal J124 B7 1 ON 14 Not used 15 Not used P010 0 Fixing motor clock M17 signal FMPL J111 B1 input 1 Side tray motor clock signal M22 3KFG J605 B14 2 Counter operation error detection signal 1 Error 3 Scanner cooling fan 1 2 3 error detection J105 B6 1 Error signal J123A11 B9 4 N...

Page 259: ...ed input 1 Delivery door switch J104 B7 1 Closed 2 Multifeeder open detection SW31 signal MFO J102 B4 1 Open 3 Side tray right door open detection SW46 RDO J605 A5 Alternates 0 and signal master CPU 1 at ON 4 Side tray connection detection SW21 signal STC J103 B13 1 Connected 5 Duplexing unit set detection signal 6 Control card detection signal CCNNT J104 B3 0 Connected 7 Option connection detecti...

Page 260: ...ignal 1 at ON 5 Lower front tray paper width lower LTPWD J120 B3 Alternates 0 and detection SW27 signal 1 at ON 6 Lower front tray paper length lower LTPLD J120 B5 Alternates 0 and detection SW28 signal 1 at ON 7 Lower front tray paper length upper LTPLU J120 B7 Alternates 0 and detection SW29 signal 1 at ON P018 0 Not used output 1 Not used 2 Not used 3 Not used 4 Not used 5 Not used 6 Not used 7...

Page 261: ...y lifter position detection LLTP J111 A11 1 Upper limit Q19 signal 5 Lower front tray lifter lower limit detection LTLLD J111 B9 0 Switch pressed SW19 signal 6 Not used 7 Not used P024 0 Not used input 1 Upper side tray paper length detection USTAS J601 A4 1 Paper running Q80 signal 1 short 2 Upper side tray open detection SW33 USTRYO J604 A7 Alternates 0 and signal 1 at ON 3 Upper side tray open ...

Page 262: ...er deck paper level lower detection STLAS J501 A2 1 Lower level Q43 signal 7 Paper deck paper level upper detection STUAS J501 A5 1 Upper level Q45 signal P027 0 Upper front tray lifter motor M3 drive signal 0 M3 ON output 1 Upper front tray lifter motor M3 CW CCW 0 UP rotation signal 2 Upper front tray releasing solenoid SL13 UTRSD J115 B2 1 SL13 ON drive signal 3 Upper front tray open LED ON SWL...

Page 263: ... A1 0 DOWN 5 Paper deck ON signal J110 A1 1 ON 6 Not used 7 Not used P030 0 Primary charging wire cleaning motor CW M6FW J103 B8 1 Forward output rotation signal M6 1 Primary charging wire cleaning motor CCW M6RV J103 B9 1 Reverse rotation signal M6 2 Transfer separation charging wire cleaning M8FW J118 B5 1 Forward motor CW rotation signal M8 3 Transfer separation charging wire cleaning M8RV J118...

Page 264: ...signal 1 Primary charging wire cleaner rear SW4 PCRP J103 B6 0 Switch ON signal 2 Pre transfer charging wire cleaner front QCFP J105 A9 0 Switch ON position SW7 signal 3 Pre transfer charging wire cleaner home QCHP J105 A8 0 Switch ON position SW6 4 Transfer separation charging wire cleaner TSCHP J118 B9 0 Switch ON home position SW9 signal 5 Transfer separation charging wire cleaner TSCRP J118 B8...

Page 265: ...3 Not used 4 Stopper motor M7 excitation A signal 0 ON 5 Stopper motor M7 excitation B signal 0 ON 6 Stopper motor M7 drive signal 0 ON 7 AE sensor discharging signal 0 ON P041 0 Edge detection signal EDGO 1 ON 1 Cooling fan M9 drive signal M9D 0 ON 2 Re circulating motor M4 drive signal RCMD 0 ON 3 Not used 4 Not used 5 Not used 5 Not used 6 Not used 7 Not used P042 0 Edge detection signal S20 ED...

Page 266: ...motor M2 drive signal 0 ON 3 Belt motor reference clock signal Alternates 0 and 1 4 Feeding motor clock detection signal S22 FDCLK Alternates 0 and 1 5 Pick up motor M1 CW rotation signal 1 CW 6 Pick up motor M1 rotation speed control 1 ON signal 7 Pick up motor M1 CCW rotation signal 1 CCW P045 0 Reversing motor M2 rotation speed control signal 1 Solenoid 7 drive signal SL7D 0 ON 2 Delivery motor...

Page 267: ...nal 1 ON P048 0 Not used 1 Not used 2 Not used 3 Not used 4 DIP switch 1 5 detection signal 1 ON 5 DIP switch 1 6 detection signal 1 ON 6 DIP switch 1 7 detection signal 1 ON 7 Right cover open closed detection signal RCVF 1 Closed S23 24 RCVR P049 0 Not used 1 Not used 2 Not used 3 Not used 4 Push switch 1 detection signal 1 ON 5 Push switch 2 detection signal 1 ON 6 Push switch 3 detection signa...

Page 268: ... detection signal S26 SPHP 1 HP 7 Tray position detection signal S25 TRY 1 DOWN P052 0 Not used 1 Original set indictor LED ON signal 0 ON 2 LED 1 ON signal 0 ON 3 LED 2 ON signal 0 ON 4 LED 3 ON signal 0 ON 5 Not used 6 Not used 7 Not used P053 0 Matrix digit 0 signal 1 Matrix digit 1 signal 2 Matrix digit 2 signal 3 Matrix digit 3 signal 4 Matrix common 0 signal 5 Matrix common 1 signal 6 Matrix...

Page 269: ... P057 Reversing motor current control DA signal decimal P058 AE sensor LED O DA signal P059 AE sensor LED G DA signal P060 AE sensor LED offset DA signal P061 Original sensor S1 DA signal P062 Registration sensor 1 S3 DA signal P063 Skew sensor S4 DA signal P064 Image leading edge sensor S20 DA signal P065 Manual feed set sensor S32 DA signal P066 Original sensor 2 S27 DA signal P067 Not used P068...

Page 270: ...ent 3 Reference wall home position signal PI 13 GWHP 1 HP 4 Sorter paper detection signal PI 4 SPEXT 1 Paper present 5 Guide bar home position signal PI 16 GBHP 1 HP 6 Multiguide drive motor control signal 1 M5 MGMA 1 ON 7 Multiguide drive motor control signal 1 M5 MGMB 1 ON P084 0 D A converter serial signal 1 Not used 2 Feeding motor M1 speed variable signal FDMVC 1 Speed control 3 D A converter...

Page 271: ...s 1 and 0 at input 4 Stapler paper sensor analog input signal Alternates 1 and 0 at input 5 Bin sensor analog input signal S4 Alternates 1 and 0 at input 6 Feeding motor current analog input signal Alternates 1 and 0 at input 7 Feeding motor speed variable analog input Alternates 1 and signal 0 at input P088 0 Not used 1 Not use 2 Not used 3 Not used 4 Staple unit shift motor M3 pulse signal 1 SLD...

Page 272: ... pulse signal 3 SFTA 1 ON 7 Bin shift motor M9 pulse signal 4 SFTB 1 ON P091 0 Matrix digit output signal 0 1 Matrix digit output signal 1 2 Matrix digit output signal 2 3 Matrix digit output signal 3 4 Matrix digit output signal 4 5 Matrix SEG output signal 0 6 Matrix SEG output signal 1 7 Matrix SEg output signal 2 P092 0 Matrix COM input signal 0 1 Matrix COM input signal 1 2 Matrix COM input s...

Page 273: ... 1 point P094 0 Not used 1 Multiguide drive motor reference wall drive 1 ON motor drive signal 2 Not used 3 Not used 4 Not used 5 Not used 6 Not used 7 Not used P095 0 Stapling position LED4 ON signal 1 ON 1 Stapling position LED1 ON signal 1 ON 2 Staple absent LED ON signal 1 ON 3 Stapling position LED 5 ON signal 1 ON 4 Stapling position LED 2 ON signa 1 ON 5 Front retrieval key LED ON signal 1 ...

Page 274: ...sent 2 Staple absent signal SW1 HKEPN 1 Stapler absent 3 Stapler safety detection signal MSW1 SFTYSW 1 ON 4 Stapler unit swing position signal PI10 SWGP 1 ON 5 Not used 6 Not used 7 Not used P099 0 Front retrieval key check signal 1 ON 1 Shift down key check signal 1 ON 2 Bin home position signal PI18 BHP 1 HP 3 PCB check signal 0 S order PCB 4 Front door open internal signal DROPN 1 Door closed 5...

Page 275: ... decimal P104 Bin paper sensor S4 A D input value P105 Feeding motor current value M1 A D input value P106 Feeding motor speed variable M1 A D input value P107 Stapler paper sensor S5 D A output value P108 Swing motor current value M4 D A output value P109 Stapler unit shift motor current value M3 D A output value P110 Bin shift motor current value M9 D A output value P111 Guide drive motor curren...

Page 276: ...OSET J6 1 2 C F F set detection MS2 signal CFFST J6 3 3 Cover open closed detection MS3 signal COSET J6 5 1 Cover closed 4 Original leading edge sensor PI1 signal DOTP J5 2 1 Original present 5 Original feeding switch SW2 signal DFWD J7 1 6 C F F motor clock sensor PI2 signal MCLK J7 5 7 Original switch SW1 signal DRVS J7 2 P117 0 output 1 2 3 4 Heat exhaust fan FM1 2 drive signal FMD J3 2 1 Rotat...

Page 277: ...tential control Use it to adjust the braking for when the scanner is moving in reverse Use it to adjust the margin along the leading edge width ON period of blank exposure lamp Use it to correct the input data of the multifeeder paper width detecting variable resistor DRUM_SEL ATM BRAKE_SC LE_BLANK MULT_SZ 1 30 0 3 2 40 128 127 128 127 After replacing the photosensitive drum enter the setting reco...

Page 278: ...ssembly Use it to adjust the current for the transfer charging assembly 1st side Use it to adjust the current for the transfer charging assembly 2nd side Use it to adjust the current for the separation charging assem bly 1st side Use it to adjust the current for the separation charging assem bly 2nd side PRETRANS TRN_1 TRN_2 SEP_1 SEP_2 1 221 34 254 8 248 A higher setting will increase the cur ren...

Page 279: ...e at a 64 to 200 ratio Use it to adjust the optimum exposure in non potential con trol mode for copying at a 64 to 200 ratio Use it to adjust the intensity for newspaper originals in AE mode REGIST_H LIGHT_5H LIGHT5PH GLEAM_5H AE_SLOP 128 127 25 230 128 127 A higher setting delays the registration roller ON timing decreasing the lead ing edge margin unit 0 1 mm A higher setting will decrease the c...

Page 280: ... to adjust the scanning lamp reference ON voltage for copying in photo mode at a 50 to 63 ratio Use it to adjust the optimum exposure for overlay copying at 50 to 63 ratio in non potential control REGIST_L LIGHT_5L LIGHT5PL GLEAM_5L 128 127 25 230 A higher setting will delay the registra tion roller ON timing thereby decreas ing the leading edge margin unit 0 1 mm A higher setting will decrease th...

Page 281: ...the optimum exposure ON voltage for the C F F lamp non potential con trol Use it to adjust the original exposure intensity for newspa per originals in AE mode for copying using the C F F CFFRGST CFFLIGHT CFFGLEAM CFFAESLP 128 127 25 230 128 127 A higher setting will delay the registra tion roller ON timing thereby increas ing the leading edge margin in copying with the C F F unit 0 1 mm A higher s...

Page 282: ...ging guide plate shift width of the duplexing unit for each paper size Use this mode if the size of copy paper is a non default size when making two sided overlay copies A4_PSZ A3_PSZ A4R_PSZ B4_PSZ B5_PSZ 9 9 Setting it to 9 will increase the width shift by 9 mm in relation to the paper size Setting it to 9 mm will decrease the width shift by 9 mm in relation to the shift width However the settin...

Page 283: ... jogging guide plate shift width of the duplexing unit for each paper size Use this mode if the size of copy paper is a non default size when making two sided overlay copies B5R_PSZ LTR_PSZ 11X17_PSZ LTRR_PSZ LGL_PSZ 9 9 Setting it to 9 will increase the width shift by 9 mm in relation to the paper size Setting it to 9 mm will decrease the width shift by 9 mm in relation to the shift width However...

Page 284: ...D TIMING 3 226 BOOK_ERA 20 20 PRIMARY 210 210 3 ADJUST OK Item Description Settings Remarks Use it to set the book frame erasing width Use it to correct the application voltage for the primary charg ing assembly for factory adjustment BOOK_ERA PRIMARY 5 40 8 254 unit 1 mm A higher setting will increase the mar gin ...

Page 285: ...CTION OK Item Description Remarks Use it to check if the indications on the control panel turn ON Use it to check if the blank exposure LED turns ON Use it to check if the pre exposure LED turns ON Use it to check if the scanning lamp turns ON Use it to turn ON the LCD all ON DISP_LED BLANK PRE_EXP SCANLAMP LCD_CHK A press on the key will keep the LEDs on the control panel ON for 3 sec all ON A pr...

Page 286: ...ctivation of the C F F lamp Use it to check the operation of the C F F mirror TONER_S HPPR_MTR FAN CFF_LAMP CFF_MRR A press on the key supplies toner from the hopper to the developing assembly 10 min max Thereafter the toner inside the developing assembly will be stirred 5 min and the operation will stop automatically A press on the key will rotate the hopper motor for 3 sec A press on the key wil...

Page 287: ...INTED IN JAPAN IMPRIME AU JAPON 3 OPERATIONS AND TIMING 3 229 Screen 4 3 AE_ADJ 0 1 EXECUTING 4 FUNCTION OK F5 F9 Item Description Remarks Use it to execute density measure ment level automatic adjustment for AE mode AE_ADJ See p 3 174 only if PO CONT is ON ...

Page 288: ...IN JAPAN IMPRIME AU JAPON Screen 4 4 3 OPERATIONS AND TIMING 3 230 CFFAEADJ 0 1 EXECUTING 4 FUNCTION OK F1 F5 F9 Item Description Remarks Use it to execute density measure ment level automatic adjustment for C F F AE mode CFFAEADJ See p 3 175 only if PO CONT is ON ...

Page 289: ...LY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 3 OPERATIONS AND TIMING 3 231 Screen 4 5 GRID_ADJ 0 1 EXECUTING DPOT XXX V DVDT XXX V 4 FUNCTION OK Item Description Remarks Use it to adjust the primary charging assembly grid voltage GRID_ADJ See p 3 177 ...

Page 290: ...below KEY_CHK See Table3 1007 Press the key and then each key To end the current mode press the Reset key OK Display 0 0 OF 0 1 OF 0 2 OF 0 3 OF 0 4 OF Key Reset Stop Start 1 4 Display Key Display Key Display Key 0 5 OF 0 6 OF 0 7 OF 0 8 OF 0 9 OF 0 A OF 0 B OF 0 C OF 0 D OF 0 E OF 0 F OF 1 0 OF 1 1 OF 1 2 OF 7 Clear 2 5 8 0 3 6 9 ID Power Saver Interrupt User Mode Guide Guide to Key Codes touch p...

Page 291: ...ing roller position in about 20 sec it will be discharged automati cally Use it to turn ON OFF the potential control function 0 Enable potential control 1 Disable potential control Use it to clear the jam history shown in service mode Use it to clear the self diagnosis code history shown in service mode 1 1 ERROR NIP PO CONT JAM_RLS ERR_RLS To clear the respective error code press the key Press th...

Page 292: ...TED IN JAPAN IMPRIME AU JAPON Screen 4 8 3 OPERATIONS AND TIMING 3 234 RAM_INIT 0 1 EXECUTING 4 FUNCTION OK Item Description Remarks Use it to clear the data in the RAM on the DC controller PCB RAM_INIT A press on the key will initialize the data in the RAM OK ...

Page 293: ...ING 3 235 H User Option Mode Press the key to select the appropriate screen Press the item to select The selected item will be highlighted Enter the appropriate value using the numeric keypad Screen 5 1 5 2SIDE_SL 1 0 0FF 1 ON FUZZY 0 0 4 DENS_IND 0 0 9Lv 1 17Lv COPY_LIM 999 1 999 FIX_TEMP 0 0 3 5 USER OPTION ...

Page 294: ...ransfer or separation charging assembly according to ambient temperature Or you can prohibit control to select 4 point settings You can set the mode to be enabled in response to a press on the Reset key You can switch between 9 step and 17 step notations for copy density 0 9 steps default 1 17 steps Enter any number between 1 and 999 Select so that the fixing temper ature is one of the following 0...

Page 295: ...PAN IMPRIME AU JAPON 3 OPERATIONS AND TIMING 3 237 Screen 5 2 TRAY_4K A4 A4 LTR 5 USER OPTION Item Description Remarks Settings TRAY_4K Use it to select the appropriate paper size Use it to select the appropriate paper size Use it to select the appropri ate paper size ...

Page 296: ...ed for size regardless of the country of installation 0 OFF default 1 ON You can change the frame eras ing width for copy paper lead ing edge trailing edge side 0 4 2 2 5 default 1 4 2 0 2 3 1 0 unit mm The copier cannot recognize the presence of the C F F mirror so that you must force it to recog nize it in this mode 0 C F F mirror not connected 1 C F F mirror connected default The holes in the c...

Page 297: ...i cation voltage to the primary charging assembly if the copy density is set to generate lighter than optimum copies 0 Enable original size detec tion default 1 Disable original size detec tion Use it if the images are too light at power on in the morning or distorted because of high humidity 0 Disable idle rotation 1 Enable idle rotation default Use it if the images are too light at power on in t...

Page 298: ...use in primary cyrrent control Use it to select a stream reading mode Use it to select when the message The cleaning web needs to be replaced is shown 0 OFF default 1 ON A call key will be indicat ed on the message display the user may press the key to select one from the most recent five 0 OFF default 1 ON 20Þ lower thean normal for temperature control 0 Standard voltage default 1 target potentia...

Page 299: ...f the trans fer guide bias With an RDF in use use it to support non default size papers Use it to change the developing bias light area potential DC voltage 0 Executes 10 minutes and 60 minutes after power ON standard 1 Executes once after power ON 0 Charges the bias voltage at high humidity 1 Grounds at humidity that is 22g kg or less 2 Grounds at humidity that is 18g kg or less 3 Grounds always ...

Page 300: ...ading to 00000000 Screen 6 1 OK 6 L_TOTAL 0 L_MULTI 0 L_TRAY_1 0 L_TRAY_2 0 L_TRAY_3 0 6 COUNTER OK Item Description Notation L_TOTAL L_MULTI L_TRAY_1 L_TRAY_2 L_TRAY_3 L size total copy counter L size multifeeder pick up copy counter L size upper front tray pick up copy counter L size lower front tray pick up counter L size paper deck pick up copy counter 99999999 thereafter returns to 00000000 C...

Page 301: ... S_TRAY_3 0 6 COUNTER OK Item Description Notation S_TOTAL S_MULTI S_TRAY_1 S_TRAY_2 S_TRAY_3 S size total copy counter S size multifeeder pick up copy counter S size upper front tray pick up copy counter S size lower front tray pick up counter S size paper deck pick up copy counter 99999999 thereafter returns to 00000000 Copy size S size 300 mm or less in paper length ...

Page 302: ...ion Notation L_OVLAY L_2_SIDE S_OVLAY S_2_SIDE L_PU R_PU CFF L size overlay copy counter L size two sided copy counter S size overlay copy counter S size two sided copy counter Left pick up original feed counter Right pick up original feed counter Copy counter with C F F in use 99999999 thereafter returns to 00000000 Copy size L size 300 mm or more in length and non default size S size 300 mm or l...

Page 303: ...ay two sided copies when pick up occurs at its respective source of paper 2 OVLAY 2_SIDE For overlay two sided copying when the copy paper is picked up for copying on the second side 3 MULTI TRAY_1 5 When copy paper is picked up at its respective source of paper 4 L_PU R_PU When the size of the original is identified after the original has been pulled into the RDF 5 C F F When pick up occurs for C...

Page 304: ...it to adjust the original stop position for RDF left pick up Use it to adjust the original stop position for RDF manual feed Use it to adjust offset in Y direction when right pick up mode is used for the RDF i e to adjust the shift of the lens refer ence position for right pick up mode in relation to left pick up mode Use it to adjust the image leading edge position in stream reading mode A higher...

Page 305: ..._L 0 0 7 APPLICATION OK Item Description Remarks P_INTL_R P_INTL_L Use it to adjust the RDF 2 on 1 mode right pick up original to original distance The RDF changes the left right pick up position Use it to adjust the RDF 2 on 1 mode left pick up original to original distance The RDF changes the left right pick up position Unit 0 5 mm Settings 10 10 ...

Page 306: ... refer ence ON voltage for RFAE mode right pick up Use it to adjust the scanning intensity for newspaper originals for RFAE mode right pick up Use it to adjust the stream reading speed A higher setting will decrease the copy density in RFAE mode thereby generating lighter copies A higher setting will increase the density for newspaper originals thereby generating darker copies A higher setting wil...

Page 307: ...ute automatic adjustment of the RF AE sensor See 3 of Note Use it to execute initial adjustment of the RDF sensor See 3 and 2 of Note Press the key to start Press the key to start Press the key to start OK OK OK Settings Note 1 Execute when replacing the RDF controller PCB registration sensor 1 or skew sensor 1 2 Execute when replacing the RDF controller PCB original sensor 1 registration sensor 1...

Page 308: ...the RDF controller PCB 2 For these items the following are true they are for direct input to the RDF controller PCB Operation 1 When the data value under DOC ST R is changed from 5 to 8 the result will be 8 5 3 caus ing the original stop position to shift by 3 Operation 2 When the data value under P INTL R is changed from 7 to 5 the result will be 5 7 2 caus ing the original to original distance t...

Page 309: ... circuit SSR fault DC controller PCB fault Thermistor TH1 poor contact or open circuit Fixing heater H1 open circuit Thermal switch TS1 open circuit SSR fault DC controller PCB Cleaning belt fixing assembly taken up Cleaning belt sensor Q8 Q9 fault DC controller PCB fault Description After power on the upper fixing roller does not reach 100 C within 5 min The temperature of the upper fixing rol le...

Page 310: ... screw has become locked the detecting switch SW20 is pressed a multiple number of times within a specific period of time When the fixing motor M17 is rotating an error is detected for 2 sec or more After the pick up motor drive signal has been generated clock pulses are not generated within 2 sec As many as 50 000 copies have been made after detecting a waste toner full condition During copying t...

Page 311: ...the scanner motor drive signal is being generated clock pulses are not generated within 2 sec The scanner leading edge signal SCDP1 is not generated within 0 8 sec after the scanner has started to move forward within 3 sec for the C F F The scanner leading edge signal SCDP1 is not generated within 1 sec after the scanner has started to move in reverse The scanner C F F position signal SCFFP is not...

Page 312: ...er leading edge signal SCDP2 is not generated within specific period of time after a command has been issued to lock the scanner At power on the IPC Q170 on the DC controller PCB cannot be initialized After power on the IPC Q170 on the DC controller PCB goes out of order The communication IC on the RDF con troller PCB has gone out of order The communication IC on the sorter control PCB has gone ou...

Page 313: ... damage the fixing roller and would cause overflowing of toner from the hopper To clear E000 E001 E002 E003 E005 or E020 you must clear the data in the RAM on the DC controller PCB as follows 1 Start service mode 2 Press the key to select ERROR 3 Press the OK key to clear the E code The message display on the control panel will be refreshed and the copy mode screen will return 2 E202 and E204 lock...

Page 314: ...lt Original sensor 2 S27 fault Description The communication is monitored at all times The exchange of data with the copier is absent for 5 sec or more Initialization does not end in 2 sec otherwise for the pick up roller the flat face of the D cut roller is at the top and is at home position The number of belt motor clock pulses for 100 msec is less than a specific value The number of reversing m...

Page 315: ... AU JAPON When the self diagnosis has activated you can reset the machine by turning the copier s power switch OFF and then ON You can continue to make copies by disconnecting the RDF s lattice connector and placing originals on the copyboard 3 OPERATIONS AND TIMING 3 257 Caution ...

Page 316: ...ration does not end within 2 sec after the generation of the motor drive signal The operation does not end within 2 sec after the generation of the motor drive signal The operation does not end within 2 sec after the generation of the motor drive signal The bin paper sensor cannot be adjus ted automatically or an error occurs in the automatic adjustment value The operation does not end within a sp...

Page 317: ...the sorter State in which an error code E is indicated 3 OPERATIONS AND TIMING 3 259 Cause Stapler unit shift motor M3 fault Stapler paper sensor automatic adjustment fault Bin shift motor M9 fault Circuit breaker CB1 Fuse resistor R63 Door switch MSW3 C F F connection detecting switch SW30 C F F home position switch MS5 fault Description The operation does not end in 500 msec after the generation...

Page 318: ...n rotation detection sensor fault C F F controller PCB fault C F F mirror motor M15 fault C F F mirror position sensor Q32 fault Copier DC controller PCB fault C F F position error C F F home position MS4 fault Description The microprocessor on the C F F con troller PCB cannot detect clock pulses even though the C F F motor drive sig nal is being generated The rotation detection signal FM1A or FM2...

Page 319: ...bly or reassembly work 2 Group the screws by type length and diameter and location 3 The fixing screw for the grounding wire and varistors is fitted with a washer to ensure electric con tinuity be sure to use the washer for reassembly 4 If possible avoid operating the machine with any of its parts removed 5 Unless otherwise noted reassembly is the reverse of disassembly ...

Page 320: ...6 F No 2 Feeding Assembly 4 50 G Duplexing Unit 4 52 H Buffer Assembly 4 57 IV EXPOSURE SYSTEM 4 61 A Scanning Lamp Assembly 4 61 B Standard White Plate Assembly 4 62 C Pre Exposure Lamp Assembly 4 63 D Blank Exposure Lamp Assembly 4 63 V CHARGING ASSEMBLY 4 64 A Photosensitive Drum 4 64 B Potential Sensor Assembly 4 70 C Primary Charging Assembly 4 70 D Pre Transfer Charging Assembly 4 71 E Trans...

Page 321: ...NON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 1 w e q 0 i o u y t r q Front right door w Front left door e Hopper upper cover r Hopper supply mouth cover t Upper right cover 4 y Upper left cover 2 u Multifeeder cover i Paper deck cover o Multifeeder tray 0 Front left cover 2 ...

Page 322: ...6 e Buffer upper rear cover 4 r Buffer lower rear cover 2 t Rear lower left cover 2 y Upper rear left cover 3 u Rear right cover 3 i Rear upper right cover 4 o Rear upper cover 2 2 0 Rear upper cover 1 3 4 7 8 2 3 9 5 6 1 q Process cover 3 w Inside left cover 2 e Fixing assembly cover 2 r Delivery assembly cover 2 t Duplexing unit front cover 2 y Pick up assembly cover 3 u Buffer assembly upper co...

Page 323: ... around the magnet plate At this time check to make sure that no droplet of water remains 2 Removing the Pick Up Assembly Cover 1 Open the front door 2 Remove the mounting screw q and remove the jam removal grip w then remove the screw and remove the jam removal handle e 3 Remove the three mounting screws r and lift the pick up assembly cover t slightly to remove Figure 4 105 3 Removing the Duplex...

Page 324: ... Shift the RDF upright 2 Remove the two screws q and remove the magnet plate w Figure 4 108 3 Open the front door and remove the six mounting screws e then remove the control panel unit r Figure 4 109 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 4 3 3 4 2 1 1 3 3 4 ...

Page 325: ... panel e Take care to avoid dust on the display of the LCD r Make sure all PCB mounting screws have been fitted t Take care when tightening the self tapping screws on the PCB C Door Switch Assembly 1 Removing the Front Door Switch Assembly 1 Remove the control panel from the copier p 4 4 2 Remove the scanner cooling fan 1 p 4 6 3 Remove the two screws q and move the har ness guide plate w to the r...

Page 326: ...ove the delivery door switch assembly e Figure 4 113 D Fans 1 Removing the Scanner Cooling Fan 1 FM1 1 Remove the control panel p 4 4 2 Remove the three mounting screws q and remove the duct plate w Figure 4 114 3 Disconnect the connector e and remove the two mounting screws r then remove the scanner cooling fan 1 t Figure 4 115 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY ...

Page 327: ...ooling fan 3 t Figure 4 117 4 Removing the Fixing Cooling Fan FM2 Exhaust Fan FM3 and Power Supply Cooling Fan FM6 1 Remove the rear cover 2 Remove the two mounting screws q and dis connect the connector w then remove the fix ing cooling fan e 3 Remove the two mounting screws r and dis connect the connector t then remove the exhaust fan y 4 Remove the mounting screw u and discon nect the connector...

Page 328: ...g the Developing Fan FM5 1 Remove the primary charging assembly from the front of the copier 2 Remove the exhaust fan p 4 7 3 Remove the mounting screw q and discon nect the high voltage connector w of the pri mary charging assembly then remove the two screws e and disconnect the connector r to remove the developing fan assembly t Figure 4 121 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6...

Page 329: ... and move the harness rail w downward 3 Remove the two mounting screws e and dis connect the connector r then remove the scanner motor cooling fan assembly t Figure 4 123 9 Removing the Fixing Cooling Fan FM2 1 Remove the rear right cover and the rear upper left cover 2 Remove the two mounting screws q and dis connect the connector w then remove the fix ing cooling fan e Figure 4 124 4 MECHANICAL ...

Page 330: ...t the connector q and loosen the six mounting screws w front rear then remove the buffer path upper unit e Figure 4 127 3 Remove the two mounting screws r and remove the fixing heat exhaust fan 2 t Figure 4 128 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 10 2 2 3 1 4 4 5 ...

Page 331: ...proofing fan e Figure 4 129 1 When removing the transfer charging dust proofing fan be sure to perform cleaning work as follows 1 Replace the filter every 250 000 copies Figure 4 130 2 To clean the transfer charging dust proofing fan tap it above waste paper copy paper so that it is free of residual toner Figure 4 131 3 Remove the drum unit See p 4 64 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC C...

Page 332: ...et of water remains Figure 4 134 E Removing the Power Supply Cord Mount 1 Open the front door 2 Remove the four mounting screws q and remove the power supply cover w Figure 4 135 3 Remove the buffer rear lower cover 4 Disconnect the four connectors e and remove the two mounting screws r then lift the power cord mount assembly t slightly to remove Figure 4 136 4 MECHANICAL SYSTEM COPYRIGHT 1996 CAN...

Page 333: ...q and remove the environment sensor Remove the mounting screw e and disconnect the connector r then remove the counter assembly t togeth er with the support plate Figure 4 137 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 13 1 2 3 5 4 ...

Page 334: ...emove the pick up motor Figure 4 202 6 Remove the four mounting screws 2 and remove the scanner drive motor 3 Figure 4 203 The drive belt is on the pully of the motor shaft remove the motor while detaching the belt from the pully In the case of the replacement of the scan ner drive motor the following procedure should be executed after the scanner drive motor is attached to copier 1 Remove the hop...

Page 335: ... 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 15 2 Routing the Scanner Drive Cable Figure 4 204 2 3 4 5 6 7 Wind eight times Steel ball Tighten temporarily 1 Loose the screw 8 Tie the screw Screw ...

Page 336: ...he No 1 mirror mount and the No 2 mirror mount by hand to make sure that they move smoothly At this time be care ful not to touch the deflecting plate 4 Adjusting the Mirror Position optical length between No 1 mirror and No 2 No 3 mirror 1 Move the No 1 mirror mount and No 2 No 3 mirror mount to the left 2 Set the mirror positioning tool front TKN 0509 and the mirror positioning tool rear TKN 051...

Page 337: ...ear of the output shaft for the zoom lens and the lens stage drive motor 1 At time of installing the machine be sure to remove the lens metal fixing of the lens stage before connecting the power plug 2 Be sure to disconnect the power plug before moving the lens stage or the zoom lens by hand In addition take care to move it slowly 1 Removing the Lens Y Direction Drive Motor 1 Remove the copyboard ...

Page 338: ...e toward the inside so that it will securely fit the inside of the lens cover 2 Lens X Direction Drive Motor 1 Remove the copyboard glass 2 Remove the two mounting screws q and dis connect the connector w then remove the original sensor unit e 3 Remove the three mounting screws r and remove the lens cover t Figure 4 211 4 Remove the two mounting screws y and remove the X direction drive belt cover...

Page 339: ...Motor Assembly 1 Removing the Drum Motor Assembly 1 Remove the rear cover 2 Remove the mounting screw and remove the harness guide plate 3 Remove the exhaust fan p 4 7 4 Disconnect the two connectors q and remove the four mounting screws w then while loos ening the tensioner e remove the drum motor assembly r Figure 4 214 When installing the drum motor to the copi er fix it in place with screws wh...

Page 340: ... screws r and remove the fan support plate t Figure 4 215 4 Disconnect the three connectors y and remove the screw u then shift the harness guide i to the side Figure 4 216 5 Disconnect the two connectors o and remove the four mounting screws 0 then remove the pick up motor assembly 1 Figure 4 217 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU...

Page 341: ...oving the Drum Developing Assembly 1 Open the front door and pull out the drum unit from the copier p 4 64 2 Remove the rear upper left cover and the rear upper right cover then remove the exhaust fan p 4 7 3 Remove the drum motor assembly p 4 7 4 Remove the high voltage cable from the har ness retainer of the drum developing drive assembly 5 Remove the six mounting screws q and remove the drum de...

Page 342: ... Remove the five mounting screws and remove the DC power supply unit p 4 95 6 Remove the mounting screw and remove the harness guide plate q 7 Disconnect the five connectors and remove the two mounting screws w then remove the scanner motor controller PCB e Figure 4 222 8 Remove the three mounting screws r and remove the clutch unit t then detach the drive belt from the pulley y Figure 4 223 4 MEC...

Page 343: ... o then release the drive belt 0 from the pulley Figure 4 224 10 Remove the four mounting screws 1 and remove the pick up drive assembly 2 to the front Figure 4 225 Reference Figure 4 226 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 23 10 7 8 9 11 12 11 11 10 ...

Page 344: ...d remove the two mounting screws y to remove the bearing stopper plate u Figure 4 228 4 To remove the pick up clutch of the lower front tray remove the DC controller PCB p 4 95 and the DC power supply unit p 4 95 5 Remove the E ring i and the bearing o then remove the two E rings 0 and discon nect the connector to remove the clutch 1 together with the gear For the pick up clutch of the lower front...

Page 345: ...ding Roller Clutch and the Feeding Roller Stop Clutch 1 Remove the rear right cover 2 Remove the screw q and remove the har ness guide plate Disconnect the five connec tors w and remove the two mounting screws e then remove the scanner motor controller PCB r Figure 4 231 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 25 1 3 2 4 3 1 ...

Page 346: ...osen the two screws 2 with a hex hole Disconnect the connector 3 and remove the feeding roller clutch 4 together with the gear Figure 4 233 5 To remove the feeding roller stop clutch remove the three mounting screws 4 and remove the feeding roller stop clutch assembly 5 Do not remove the pick up drive assembly cover Figure 4 234 6 Remove the two mounting screws and loosen the two mounting screws w...

Page 347: ...o of the duplexing unit and remove the front tray drive assembly 0 Figure 4 237 Points to Note When Disconnecting the Drawer Connector When disconnecting the drawer connector remove it while pushing down the connector releasing claw u found at the bottom of both ends of the connector Figure 4 238 I Front Tray Lifter Motor Assembly 1 Removing the FrontTray Lifter Motor Assembly 1 Remove the rear lo...

Page 348: ...ing Buffer Drive Assembly 1 Construction Figure 4 242 2 Removing the Fixing Buffer Drive Assembly 1 Remove the rear right over rear upper left cover rear lower left cover buffer assembly upper cover buffer assembly lower cover left cover upper left cover and buffer assembly upper cover 2 Release the buffer assembly and remove the mounting screw q front rear each Figure 4 243 4 MECHANICAL SYSTEM CO...

Page 349: ...om body The metal plate may jump to you 4 Remove the four mounting screws t and dis connect the two connectors y then remove the fan unit u Figure 4 246 5 Mark the position with a scribe and remove the two mounting screws i then remove the gear unit o Figure 4 247 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 29 5 5 5 6 7 8 8 9 1 2 3 ...

Page 350: ...om body The metal plate may jump to you 4 Remove the four mounting screws t and dis connect the two connectors y then remove the fan unit u Figure 4 246 5 Mark the position with a scribe and remove the two mounting screws i then remove the gear unit o Figure 4 247 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 29 5 5 5 6 7 8 8 9 1 2 3 ...

Page 351: ... 250 2 Removing the CW CCW Rotation Roller 1 Remove the rear right cover and the rear lower left cover 2 Remove the fixing motor p 4 21 3 Remove the fixing relay drive assembly p 4 28 4 Remove the E ring q and loosen the drive belt w Disconnect the two connectors e of the clutch and remove the four mounting screws r then remove the CW CCW rotation roller drive assembly t Figure 4 251 4 MECHANICAL ...

Page 352: ...ive of the CW CCW rotation roller drive assembly to each gear so that the values are as shown in Figure 4 252 Figure 4 252 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 31 Adjusting screw 600 100g 600 60g Adjusting screw ...

Page 353: ...with a scribe before removing it Figure 4 301 2 Removing the Pick Up Roller 1 Remove the multifeeder assembly 2 Remove the multifeeder cover 3 Remove the two mounting screws and remove the upper left cover 4 Remove the two mounting screws q and remove the two multi shutter stoppers w Figure 4 302 5 Remove the three stop rings e at the front and remove the shutter r then remove the pick up roller t...

Page 354: ...t the marking shown in Figure 3 305 is toward the rear of the copier Figure 4 305 Orientation of the Shutter front rear When installing the shutter be sure so that it is oriented as shown in Figure 4 306 Figure 4 306 3 Removing the Pick Up Feeding Roller 1 Remove the multifeeder assembly 2 Remove the multifeeder cover 3 Remove the two mounting screws and remove the upper left cover 4 Remove the mo...

Page 355: ...ront and remove it from the releasing lever w Figure 4 309 5 Turn over the multifeeder assembly and lift the separation roller locking plate e to remove the separation roller r Figure 4 310 5 Adjusting the Pick Up Feeding Roller Pressure 1 If pick up failure or double feeding occurs fre quently remove the multifeeder assembly and change the position of the spring q If pick up failure occurs increa...

Page 356: ... Roller 1 Open the paper deck cover and remove the stop ring q at the front and at the rear then remove the pick up roller w Be careful not to drop the parallel pin Figure 4 313 Orientation of the Pick Up Roller The pick up roller has a specific orientation When installing it to the pick up roller shaft be sure that the marking 8 is toward the rear of the copier Figure 4 314 4 MECHANICAL SYSTEM CO...

Page 357: ...e separation roller assembly cover i Figure 4 317 6 Remove the stop ring o 7 While pushing down the separation roller assembly 0 detach the timing belt 1 and remove the pick up feeding roller assembly 2 Figure 4 318 Orientation of the Pick Up Feeding Roller The pick up feeding roller has a specific orien tation When installing it be sure that the marking 8 is toward the rear of the copier Figure 4...

Page 358: ...er shaft from the separation roller assembly to remove the sep aration roller Adjusting the Pick Up Feeding Roller Pressure If pick up failure or double feeding occurs fre quently change the position of the spring to change the pick up pressure of the roller q If pick up failure occurs increase the pick up pressure w If double feeding occurs decrease the pick up pressure Figure 4 322 4 MECHANICAL ...

Page 359: ... the paper when the plunger of the pick up roller releasing solenoid is pushed in Figure 4 323 C Front Tray Assembly When handling the front tray be sure to hold it with your hands at its front and rear Figure 4 341 Figure 4 341 q You could deform the separation plate if you held the plate when lifting the front tray Figure 4 342 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY...

Page 360: ...he pick up roller shaft be sure so that the marking 5 faces the front of the copier Figure 4 344 3 Removing the Pick Up Feeding Roller 1 Remove the front tray 2 Slide out the duplexing unit while lifting the feeding assembly remove the mounting screw q and the roller stopper plate w 3 Remove the E ring e and move the drive belt r to the front Remove the stop ring t and remove the pick up feeding r...

Page 361: ...areful not to drop the pin 5 Adjusting the Pressure of the Pick Up Feeding Roller If pick up failure or double feeding occurs fre quently pull out both front trays and change the position of the spring hooked on the C roller stay 1 Remove the separation roller p 4 46 2 Remove the two mounting screws q and remove the C roller stay assembly w Figure 4 348 q If pick up failure occurs increase the pre...

Page 362: ...ecking the height of the lower front tray remove the upper front tray in advance Figure 4 350a front tray separation plate assembly Figure 4 350b front tray separation plate assembly 3 If the position of the paper surface is not as indicated loosen the two adjusting screws of the paper sensor plate and move the sensor support plate up and down to adjust the posi tion Figure 4 351 If the paper surf...

Page 363: ...ht en the screws when the tension at each cable end is as indicated reading of the spring gauge 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 42 Tighten temporarily Tighten temporarily 300g 1kg 300g 300g Spring gauge Tighten Figure 4 352 ...

Page 364: ...tate the work you may remove the solenoid from the copier Figure 4 354 D Pick Up Vertical Path Roller Assembly 1 Removing the Pick Up Vertical Path Roller from the Copier 1 Remove the copier s rear right cover 2 Remove the scanner motor controller PCB 3 Rotate the pulley q and fix it in place so that the flat portion of the pulley and the gear w will not interfere Figure 4 355 4 Remove the E ring ...

Page 365: ...op the parallel pin Figure 4 358 7 Remove the two mounting screws 5 and remove the two float pins 6 8 Remove the E ring 7 and remove the bearing 8 Figure 4 359 9 Open the front doors and remove the pick up cover and the duplexing unit from the copier p 4 3 10 Remove the two mounting screws 9 and remove the two float pins 0 11 Remove the C ring 1 and remove the gear 2 4 MECHANICAL SYSTEM COPYRIGHT ...

Page 366: ...the U guide and the two E rings 8 front rear and the two bushings 9 front rear of the pick up roller shaft assembly then remove the U guide plate 0 from the pick up roller shaft Figure 4 362 15 Remove the pick up vertical path roller togeth er with the shaft toward the front 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 45 21 20 19 23...

Page 367: ...ot to drop the parallel pin from the gear Figure 4 364 5 Remove the E ring e from the feeding assem bly support shaft and remove the bearing Figure 4 365 6 Remove the feeding fan p 4 8 7 Remove the three wire saddles t from the high voltage transformer assembly then remove the high voltage harness y from the harness guide Figure 4 366 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0...

Page 368: ...ring 0 used to suspend the feeding assembly 14 Remove the E ring 1 and the bearing 2 from the feeding assembly support shaft and pull out the feeding assembly slowly toward the front Figure 4 368 3 Removing the Feeding Belt 1 Remove the seven mounting screws q and remove the duct w 2 Remove the three mounting screws e and remove the holding tray feeding rail r Figure 4 369 3 Remove the E ring t tw...

Page 369: ...pin 4 then remove the feeding stay 5 7 Remove the E ring 6 from the front and the rear and remove the bushing block 7 and the spring 8 8 Remove the stepped screw 9 at the front and remove the guide plate 0 and the bush 1 then remove the wire cleaning tool drive shaft 2 Figure 4 372 Figure 4 373 Figure 4 374 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN ...

Page 370: ...hen remove the transfer separation charging assembly Figure 4 375a Figure 4 375b 11 Remove the two mounting screws 4 and remove the guide plate 5 then detach the feeding belt from the feeding assembly Figure 4 376 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 49 23 23 24 25 ...

Page 371: ...the duplexing unit from the copier pp 4 84 52 7 Remove the two screws and remove the deliv ery assembly cover 8 Remove the two screws i and move the fix ing assembly switch assembly o to the left Figure 4 379 9 Remove the mounting screw 0 and pull out the hinge 1 front used to support the front of the No 2 feeding assembly Be careful not to lose the metal spacer between the hinge and the copier fr...

Page 372: ...wn in Figure 4 381 when the plungers of the S M and L paper deflecting plate drive solenoids are pushed in 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 51 L size paper deflecting plate M size paper deflecting plate S size paper deflecting plate 9 0 5mm 9 0 5mm 9 0 5mm Figure 4 381 ...

Page 373: ...moving the Feeding Roller 1 Open the front door and slide out the duplex ing unit assembly 2 Remove the mounting screw q from the bot tom of the duplexing unit and remove the feeding roller assembly w Figure 4 383 3 Remove the stop ring and the bushing then remove the feeding roller Orientation of the Feeding Roller The feeding roller has a specific orientation 1 When installing the feeding rubber...

Page 374: ...separation roller has a specific orientation Install it so that the marking white dot faces the rear of the copier Figure 4 386 4 Removing the Re Pick Up Feeding Roller 1 Turn OFF the power switch and open the front doors then slide out the duplexing unit until it stops 2 Remove the four mounting screws q and remove the re pick up feeding roller w Figure 4 387 When installing the re pick up feedin...

Page 375: ...ector cover r and disconnect the con nector t Figure 4 389 4 Remove the two mounting screws y and remove the paper jogging guide drive motor u Figure 4 390 6 Removing the Re Pick Up Drive Clutch 1 Remove the duplexing unit p 4 52 2 Remove the three mounting screws q and remove the connector unit w Figure 4 391 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAP...

Page 376: ...ioning the Re Pick Up Releasing Solenoid Adjust so that the stroke of the solenoid is 3 0 5 mm when the shutter guide locking spring is in contact with the shutter guide Figure 4 394 9 Adjusting the Re Pick Up Separation Pressure Change the position of the spring hooked on the stay q If pick up failure occurs move it in the direction of C thereby decreasing the separation pres sure w If double fee...

Page 377: ...e 4 396 11 Adjusting the Re Pick Up Motor Tension Tighten the two screws while pulling the re pick up motor in the direction of the arrow with a force of 500 g Figure 4 397 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 56 1 0 0 2 6mm Direction of rotation Direction of rotation Direction of rotation A B 500g ...

Page 378: ...ove the spring r used to sus pend the vertical path unit while lifting the buffer assembly 6 Disconnect the three connectors t and remove the three mounting screws y keep the rear of the harness rail u lifted at the rear Figure 4 400 7 Disconnect the two female connectors i from the support shaft plate 8 Remove the two mounting screws o and remove the support shaft plate 0 Figure 4 401 4 MECHANICA...

Page 379: ...ushing from the rear of the roller shaft Figure 4 403 4 Remove the E ring o and the bushing 0 then pull out the duplexing vertical path roller 1 together with the shaft Figure 4 404 4 Positioning the No 1 Paper Deflecting Plate Drive Solenoid Adjust the position of the solenoid so that the No 1 paper deflecting plate is as shown when the plunger of the solenoid is pushed Figure 4 405 4 MECHANICAL ...

Page 380: ... o and the bearing 0 then remove the lower feeding roller 1 Figure 4 407 6 Removing the Delivery Roller 1 Remove the rear lower buffer cover 2 Remove the mounting screw q and remove the buffer assembly lamp w Figure 4 408 3 Remove the drive belt e at the rear then remove the E ring r drive gear t parallel pin y E ring u and bearing i 4 Remove the four mounting screws o Figure 4 409 4 MECHANICAL SY...

Page 381: ...ring 0 and the bearing 1 from the front 7 Remove the four mounting screws 2 8 Remove the delivery roller 3 Figure 4 410 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 60 11 10 10 13 11 12 10 12 11 ...

Page 382: ... scanning lamp o When installing the scanning lamp make sure that the protruding side is toward the left Figure 4 413 1 Wait until the surface of the scanning lamp has cooled before starting the work 2 The heat absorption glass may be very hot at power off take care 3 Do not leave fingerprints on the surface of the light You should pinch the end of the scanning lamp 4 If the surface of the scannin...

Page 383: ...e five mounting screws then remove the white plate cover w and the white plate left cover e Figure 4 414 5 Remove the three mounting screws r and remove the standard white plate t Figure 4 415 2 Removing the Thermal Switch 1 Remove the two fasten sleeves and the two mounting screws q and remove the thermal fuse w Figure 4 416 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 199...

Page 384: ...uplex ing unit then remove the process cover 2 Remove the drum unit from the copier p 4 64 3 Slide out the blank exposure lamp assembly slowly When removing the blank exposure assem bly and setting the blank exposure assem bly or if you accidentally trapped the har ness on the rail mount check to make sure that the connector J660 is not disconnect ed from the potential sensor Further take care as ...

Page 385: ...toner level detection PCB and disconnect the faston from the pole positioning plate Figure 4 502 Be sure to hold the positioning plate with fingers whenever pulling off the faston r of the pole positioning plate Otherwise the pole positioning plate may come off the cylinder shaft 5 Remove the two mounting screws t and remove the developing assembly duct y Figure 4 503 4 MECHANICAL SYSTEM COPYRIGHT...

Page 386: ...e 4 505 8 Remove the primary charging assembly and the pre transfer charging assembly p 4 71 9 Remove the mounting screw 1 and remove the drum positioning block 2 Figure 4 506a Be sure to hold the nob whenever you have to turn the mounting screw on the drum positioning block Figure 4 506b 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 ...

Page 387: ...emoving the Photosensitive Drum 1 Slide out the drum unit p 4 64 2 Turn the pre exposure lamp assembly q in the direction of the arrow to release it from the photosensitive drum Figure 4 508 3 Remove the two mounting screws w and remove the drum stopper e Figure 4 509 4 Slide the photosensitive drum to the rear together with the bearing r and the gear t then lift it to remove Figure 4 510 5 Remove...

Page 388: ...m you must enter the drum sensitivity once gain Go through the following for replacement 1 Install the photosensitive drum to the drum unit 2 Install the drum stopper and the drum posi tioning block and set the drum unit to the copi er 4 Install the pre transfer charging assembly and the primary charging assembly 5 Set the duplexing unit to the copier 6 Turn ON the power switch 7 Select DRUM_SEL i...

Page 389: ...d install the mounting plate and the photosensitive drum then install the drum unit 6 Cleaning the Upper Transfer Guide 1 Remove the drum unit See p 4 64 2 Remove the screw q front rear and remove the positioning bush w front rear Figure 4 514 3 Holding the right side of the upper transfer guide e turn it in the direction of the arrow Figure 4 515 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON...

Page 390: ... lint free paper move it from the front to the rear and vice versa At this time try so that each width of about 5 to 10cm is wiped 5 to 6 times 4 When the alcohol has evaporated dry wipe the surface with lint free paper 5 Turn the gear of the photosensitive drum and repeat steps 2 through 4 to cover the entire sur face of the drum Be sure to clean the photosensitive drum before replacing the clean...

Page 391: ...ogether with the potential measurement PCB Check to make sure that the potential sen sor and the potential measurement PCB have the same number C Primary Charging Assembly 1 Removing the Primary Charging Assembly 1 Open the front doors 2 Slide out the duplexing unit and remove the process cover 3 Loosen the mounting screw q and slide the charging assembly stopper w to the left 4 Disconnect the con...

Page 392: ...ssembly 4 Remove the two mounting screws q and remove the charging assembly stopper plate w then pull out the transfer separation charg ing assembly Figure 4 520 2 Installing the Transfer Separation Charging Assembly Install the charging assembly while the clean er drive block mounted to the charging assembly rail of the feeding assembly is at the front If the cleaning drive block is not at the fr...

Page 393: ...he charging assembly To prevent deformation slack of the primary charging assembly remove the left and the right shielding plates independently Do not loosen the screws q on the left and the right shielding plates at the same time Figure 4 522 2 Remove the wire cleaner Remove the lids 2 pcs for other charging assemblies 3 Free a length of about 5 cm charging wire from the reel and form a loop with...

Page 394: ... not apply to the primary charging assembly 10 Install the shielding plate left right For other charging assemblies install the lids 2 pcs 11 Install the wire cleaner At this time make sure that the orientation of the wire cleaner is correct 12 Wipe the charging wire with lint free paper moistened with alcohol Do not clean the wires with a cloth coat ed with metal powder Do not clean the wires wit...

Page 395: ... a nipper 9 Tighten the screw loosened in step 3 Keep tightening the screw until the tension of the grid wire is even Make sure that the charging assembly is free of deformation slack Try to tighten the screw at the front of the left right shielding plate as early as possible 10 Tighten the screw loosened in step 2 11 Wipe the grid wire with lint free paper moist ened with alcohol Do not clean the...

Page 396: ... 7 5 _ 1 5 0 _ _ Height of the charging wire mm 10 0 3 10 0 2 _ _ _ 14 7 0 0 3 _ 14 7 0 0 3 1 Reference The height position of the primary and the transfer charging assembly may be adjust ed by turning the screw found behind the charging assembly A full turn of the screw changes the position of the charging wire by about 0 7 mm 1 The opening of the separation charging assembly is assembled with hi...

Page 397: ... r of the pole positioning plate e Be sure to hold the pole positioning plate when removing the developing bias con nector r Otherwise the pole positioning plate may come off the developing cylinder shaft 3 Remove the screw t w washer used to keep the grounding wire in place then remove the developing assembly stopper y 4 Turn the developing assembly releasing lever u counterclockwise then remove ...

Page 398: ...eveloping assembly take care so that it will not hit any other parts 3 Removing the Blade Developing Cylinder 1 Remove the developing assembly from the copier p 4 76 2 Open the dust proofing shutter and remove the two mounting screws q then remove the upper cover Figure 4 604 3 Place a newspaper or the like on the floor and empty the developing assembly of toner 4 Remove the mounting screw w w too...

Page 399: ...mbled 7 Remove the grip ring t plastic film y spac er u roll i and C ring o in the order shown in Figure 4 607 from the cylinder shaft at the front of the developing assembly Figure 4 607 8 Remove the two mounting screws 0 from the rear of the developing assembly and remove the gear support plate 1 Figure 4 608 9 Remove the gear 2 and remove the gear 3 then remove the bearing from the gear 3 Figur...

Page 400: ...he two screws and remove the copyboard glass trainer 3 Open the hopper upper cover 4 Remove the four mounting screws and remove the hopper supply mouth cover 5 Disconnect the connector and lift the hopper to remove Be sure to clean the developing assembly rail of toner in advance of inserting the developing assembly When cleaning the hopper assembly per form the following with a moist cloth while ...

Page 401: ...y w Figure 4 702 4 Remove the mounting screw e and remove the roller r then remove the leaf spring t Figure 4 703 5 Remove the cleaning bladesupport plate y from the cleaning blade assembly Figure 4 704 6 Loosen the five mounting screws u and detach the cleaning blade from the blade sup port plate Figure 4 705 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAP...

Page 402: ...e end of the blade and tighten the screws in the order indicated Figure 4 707 3 After installing the cleaning blade check to make sure that its edge is not conspicuously wavy Such will occur if toner or foreign matter exists in the groove of the blade support plate clean the groove in advance of installing the blade 4 Installing the Side Seal Figure 4 708 Be sure that the side seal does not extend...

Page 403: ...ding Assembly 1 Slide out the drum unit from the copier p 4 64 2 Remove the two mounting screws q and remove the harness guide 3 Remove the four mounting screws w and remove the mounting plate e Figure 4 710 4 Remove the mounting screw r and remove the waste toner feeding screw lock detecting assembly t 5 Remove the three mounting screws y and remove the waste toner feeding assembly from the copie...

Page 404: ... inside left cover 3 Pull out the waste toner receptacle from front side In case of installing the waste toner recep tacle should be pushed up to the end 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 83 Caution ...

Page 405: ...until it stops then remove the fixing assembly cover 2 Remove the mounting screw and the fixing assembly stopper q then pull the fixing assembly to the front and lift it to remove Figure 4 802 When lifting the fixing assembly avoid the connector assembly at the rear Figure 4 803 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 84 1 Cauti...

Page 406: ... arm front rear to release then open the upper roller assembly Be careful as opening the upper roller assembly will move the center of gravity to the right 3 Remove the mounting screw q and slide the paper guide plate w in the direction of the arrow to remove Figure 4 805 4 Remove the screw e at the front and the screw r at the rear then remove the lower separation assembly Front Figure 4 806 Rear...

Page 407: ...e copier 2 Remove the six fastons q from the heater at the front and the rear Front Figure 4 809 1 Rear Figure 4 809 2 3 Remove the two mounting screws and remove the heater guide at the rear while being care ful not to damage the heater 4 Remove the four mounting screws w and remove the two heater support plates e from the front Figure 4 810 5 Pull out the heater slowly toward the rear being care...

Page 408: ...mbly 8 Removing the Upper Roller 1 Remove the fixing assembly from the copier p 4 84 2 Remove the mounting screw and remove the fixing assembly upper cover 3 Remove the two screws q used to keep the cleaning belt unit in place to release the clean ing belt Figure 4 811 4 Remove the grip ring w at the rear of the upper roller and remove the gear e Figure 4 812 5 Remove the four bearing retaining pl...

Page 409: ...emove it with the following in mind q When handling the upper roller it is best to wrap the roller in copy paper to protect its sur face against dirt and scratches w Install the upper roller so that the side with the A stepping shaft is toward the rear Figure 4 815 10 Removing the Thermistor 1 Remove the fixing assembly from the copier 2 Remove the mounting screw and remove the fixing assembly upp...

Page 410: ... Separation Claw 1 Remove the fixing assembly from the copier 2 Turn the locking arm to release the roller then open the upper roller assembly 3 Remove the mounting screw q from the rear and the front of the fixing assembly then open the lower separation unit slowly Front Figure 4 819 Rear Figure 4 820 4 Remove the mounting screw and remove the lower separation claw together with the support plate...

Page 411: ...it while keeping the cleaning belt feeding roller right e opening in the direction of the arrow Figure 4 823 5 Slide the cleaning belt roller r toward the rear and remove it from the bushing at the front then remove it from the bushing at the rear Figure 4 824 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 90 Cleaning belt take up roll...

Page 412: ...en the cleaning belt unit and open the cleaning belt feeding roller right 11 Slide the cleaning belt pick up roller o to the rear and remove it from the bushing at the front then remove it from the bushing at the rear Figure 4 827 12 Remove the cleaning belt from the cleaning belt unit b Installing the Fixing Cleaning Belt Figure 4 828 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV ...

Page 413: ...Figure 4 830 4 Close the cleaning belt feeding roller right and the cleaning belt unit 5 Remove the cleaning belt take up roller r from above and attach the belt to the cleaning belt feeding shaft right t and the cleaning belt feeding shaft left y Figure 4 831 6 With the cleaning belt unit half open lead the cleaning belt take up roller o through the gap between the cleaning belt feeding shaft lef...

Page 414: ...e front Figure 4 834 10 Close the cleaning belt feeding roller right and fix it in place with two mounting screws 11 Close the cleaning belt unit and fix it in place with two mounting screws 12 Lift the cleaning belt drive lever 2 several times with fingers to remove the slack Check with the naked eye Figure 4 835 13 Install the fixing assembly upper cover and install the fixing assembly to the co...

Page 415: ...be the sec ond drawing paper a and c are pits 10 to 15 mm on both edges of the copy paper Figure 4 836 Table 4 801 4 If the dimensions are not as indicated turn the pressure adjusting nut at the rear and the front to adjust 16 Positioning the Guide Plate Place the fixing assembly on a level surface and make adjustments so that the distance from the surface is 52 7 0 2 mm as shown Figure 4 837 3 4 ...

Page 416: ...ve the DC controller PCB Figure 4 901 4 Disconnect the connectors and remove the cable from the wire saddle 5 Remove the five mounting screws q and remove the power supply assembly w Figure 4 902 3 Removing the High Voltage Transformer Assembly 1 Disconnect the connector of the paper deck 2 Remove the rear right cover and the rear upper left cover 3 Remove the face plate and remove the rear upper ...

Page 417: ...ews i and remove the high voltage transformer assembly support plate u Figure 4 906 9 Remove the six high voltage cables o dis connect the three connectors 0 and remove the three mounting screws 1 then remove the high voltage transformer assembly 2 Figure 4 907 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 96 3 3 4 y t 11 9 11 9 11 9 ...

Page 418: ...r w Figure 4 1002 B Feeding Key 1 Remove the two mounting screws w of the front cover q Figure 4 1003 2 Open the front cover q as shown and discon nect the connector e Figure 4 1004 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 97 1 2 4 5 3 q Arm w Rear cover e Upper cover r Right cover t Front cover 1 2 2 1 1 3 ...

Page 419: ...d take care The screws u are tightened with the grounding wire pay attention to avoid turning and warping the grounding plate 4 As necessary cut the harness band used to keep the exhaust fan harness together 5 Remove the mounting screws r and discon nect the connectors t from each fan then remove the exhaust fan y Figure 4 1007 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1...

Page 420: ...g installation Figure 4 1102 4 Remove the mounting screw t from the front and the stepped screw y from the rear then remove the reflecting plate u Figure 4 1103 5 Push the lamp electrode rear i to remove the lamp o Figure 4 1104 2 Points to Note When Installing the C F F Lamp q Use a stepped screw for the rear of the reflect ing plate w Check to make sure that the thermal switch is in contact with...

Page 421: ...tapping screw take care not to tighten it excessively 3 Remove the microswitch actuator t Figure 4 1202 4 Remove the mounting screw y and remove the arm u Figure 4 1203 5 Disconnect the connector of the C F F con troller PCB i then remove the PCB Figure 4 1204 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 100 1 2 4 3 Caution 5 6 6 6 6...

Page 422: ...rench t remove the clock plate y Figure 4 1206 5 Remove the drive belt u Figure 4 1207 6 Remove the mounting screw i and remove the C F F motor o Figure 4 1208 7 To assemble tighten the screw i temporarily then tighten it fully after making sure that the tensioner 0 is in contact with the belt and is pushing to apply a specific tension 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV ...

Page 423: ...ew q from the bot tom of the C F F and remove the ROM cover w Figure 4 1209 3 Replace the ROM e while being careful not to damage the elements nearby Figure 4 1210 4 MECHANICAL SYSTEM COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 4 102 1 2 3 ...

Page 424: ... AU JAPON CHAPTER 5 INSTALLATION I SELECTING THE SITE 5 1 II UNPACKING AND INSTALLATION 5 2 III RELOCATING THE MACHINE 5 30 IV INSTALLINGTHE CONTROL CARDV 5 31 V REMOTE DIAGNOSTIC DEVICE II 5 34 VI INSTALLING THE COPY DATA CONTROLLER A1 5 41 VII INSTALLINGTHE CARD READER A1 5 51 ...

Page 425: ......

Page 426: ...cessary 4 The site must be level so that all feet of the machine will remain in contact and the machine will remain level 5 The site must allow enough space for opera tion of the machine The machine must be installed at least 18 cm from any wall Figure 5 1 Figure 5 2 Sorter 6 Make sure that the room is well ventilated If multiple copiers are installed arrange them so that the exhaust from one will...

Page 427: ...de of the copier and remove the two bottom pads Keep hands away from the bottom of the front tray Take the two slope plates out of the skid Turn over the slope plates after matching the pin holes in the skid and the pin holes in the slope plate put the pin taped to the slope plate through the holes Push the machine slowly to move it down the slope plates Take care so that the castors will not roll...

Page 428: ...and install the grip assembly cover accessory to the front left and rear left and front right with screws accessory Checks remarks 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 3 ...

Page 429: ...ss retainer right with two screws Open the left and right front doors and loosen the two screws to remove the upper left cover then remove the screw and remove the scanner metal fixing Keep the metal fixing for possible relocation of the machine Install the upper left cover Checks remarks Remove the protection tape for the size index and the protection material for the copyboard cover Screw Lens m...

Page 430: ...he front Then while holding the heater base assembly at the rear take out the fixing assembly Do not hold the connector assembly at the rear of the fixing assembly when lifting the assembly Remove the two screws front rear of the fixing assembly locking lever found with a tag Checks remarks Fixing assembly releasing lever Stopper Screw Connector Heater base assembly Screw Screw C Installing the Fi...

Page 431: ...following for 208V North American model and other models go to step 13 Remove the fastons from the heaters at the front and the rear total of 6 Remove the two mounting screws and remove the heater guide from the gear while taking care not to damage the heater Remove the four mountings screws and remove the two heater support plates Checks remarks Fastons Front Rear Fastons Heater support plate Scr...

Page 432: ...amage the heater Install the two heater support plates at the front using four screws Install the rear heater with two mounting screws Take care not to damage the heater Connect the fastons of the heaters front rear total of 6 Checks remarks Do not touch the surface of the heater Orient both heaters so that the side with the longer heater harness is toward the front Install the longer heater on th...

Page 433: ... Push the top of the fixing assembly and set the locking lever to notch 2 at the front and the rear Place the fixing assembly on its rail Install the fixing assembly stopper Install the fixing assembly cover Slide in the fixing assembly slowly into the machine Checks remarks Keep the front doors open and move to the installation of the photosensitive drum Screw Cleaning belt drive lever 1st notch ...

Page 434: ... assembly in place at middle position Remove the two mounting screws and remove the transfer separation charging assembly metal fixing then remove the transfer separation charging assembly While holding the feeding assembly in place remove the screwdriver used to keep it in middle position then lower the feeding assembly Checks remarks Remove the packing material Hole Screw Metal fixing 5 INSTALLA...

Page 435: ...st proofing fan Turn the developing assembly locking lever counterclockwise to release Remove the screw with a washer tightened with the grounding wire then remove the developing assembly metal fixing Checks remarks Drum separation claw releasing plate Feeding guide releasing lever Process cover Duplexing unit Screw Screw Screws Developing duct Developing assembly locking lever Developing assembly...

Page 436: ... power supply from 208 to 240V for a North American model perform the following for 208V Noth American model and other models go to step 31 Release the blanking exposure unit 1 screw Checks remarks Releasing the Blanking Exposure Unit Screw Connectors LCD unit Screw Hook Blank exposure unit 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 11 ...

Page 437: ...Remove the two drum unit fixing screws silver then hook fingers on the shaded area figure of the drum unit front plate and remove the drum unit to the front Check to make sure that the duplexing unit has been slid out Checks remarks Drum positioning block nob Screw Screw 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 12 ...

Page 438: ...from the photosensitive drum Remove the two mounting screws and remove the drum stopper Slide the photosensitive drum to the rear together with the bearing and the gear then lift it to remove Wrap the photosensitive drum with copy paper to prevent exposure to natural light Remove the gear and bearing front rear from the drum shaft Checks remarks Pre exposure lamp assembly Drum stopper Screws Beari...

Page 439: ...r for 240V FH7 4506 230V 160W then insert the flange at the rear Install the flange at the front with two screws Install the gear and bearing front rear to the drum shaft Detach the copy paper from the photosensitive drum and check to make sure that the photosensitive drum is free of foreign matter Checks remarks Be sure to install it so that the label on the inner side of the drum is toward the f...

Page 440: ... bearing slightly when pushing in Gear A Push it toward the rear so that the collar of the bearing will butt against the front side plate of the drum unit Slide it to the rear while turning slowly so that this gear will engage with the gear A Cleaner cover Photosensitive drum If the drum bearing at the rear is correctly engaged with the rear side plate the cleaner cover side plate and the drum end...

Page 441: ...f the drum unit where screws are used Fix the drum unit with two screws Turn the drum flange gear in the direction of drum rotation so that the groove of the drum flange shaft and the groove of the drum shaft match Be sure to hold the nob when turning the mounting screw on the drum positioning block Install the drum positioning block Clean the feeding assembly and keep the feeding assembly up with...

Page 442: ...e duplexing unit into the machine While opening the shutter of the developing assembly push the developing assembly into the machine until it stops Install the developing assembly metal fixing Connect the developing bias connector to the developing assembly and connect the toner level detection connector then lead the bias harness and the toner level detection harness to the harness retainer on th...

Page 443: ...ix the LCD unit in place with a screw Checks remarks Be sure to tighten the screw so that the grounding wire is kept in place by the screw Step 1 2 3 Work Open the front left door and slide out the both of front tray Remove the two screws and the inside left cover take off the two packing plastics fixing the waste toner receptacle Push in the waste toner receptacle Install the inside left cover wi...

Page 444: ...install the roller cover metal plate once again For B4 B5 paper shift up the front and rear face plates and insert the sub tray For LGL LTR R paper remove the face plates and insert the sub tray Checks remarks Screw Releasing spacer Sub tray 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 19 ...

Page 445: ... they match the positions of the partitions Remove the paper deck rear cover For B4 LGL paper perform this step Skip the step if B5 LTR R paper is used Checks remarks Face plates Partitions Screws Screws Screws Paper deck rear cover 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 20 ...

Page 446: ...all the paper deck cover to the copier s hinge metal fixings with eight screws Install the hinge cover and fix it in place with two screws then close the cover Checks remarks Screws Screws Screws Screws Screws Screws Screw Hinge cover Screw 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 21 ...

Page 447: ...eder tray Keep the multifeeder tray upright insert the shaft at the rear of the multifeeder tray into its corresponding shaft hole and the shaft at the front into its corresponding hole and close the cover Attach the cassette size label Remove the tape used to keep the sensor actuator in place Checks remarks Shafts Shaft holes Releasing spacer Tape Cassette size label 5 INSTALLATION COPYRIGHT 1996...

Page 448: ...imit Take care so that the harness of the microswitch will not become trapped on the chain Perform this step for B4 LGL skip this step for B5 LTR Install the paper deck rear cover Perform this step for B4 LGL skip this step for B5 LTR R Checks remarks Install the microswitch here 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 23 ...

Page 449: ...uth then slide the bottle to the rear This will lock the toner bottle to the toner supply mouth Hold the slide tab black on the copier s toner box found at the front of the toner supply mouth pull the slide to the front Keep pulling the shutter until it stops Checks remarks I Supplying Toner 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 24...

Page 450: ...hutter on the toner bottle and push it to its rear position Push the slide tab of the copier s toner box up as far as the marking A click should be heard indicating that the toner bottle has been released Pull the toner bottle in rear upward direction to remove Close the hopper top cover Checks remarks 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU...

Page 451: ...or the upper lower front tray and pull out the tray to the front then install the case cam to the upper lower front tray with a screw Then remove the packing material from inside the tray Set the paper size guide plate of the upper front tray to suit the appropriate paper size Put copy paper in the tray Checks remarks Check that the Add Paper indicator has turned ON Press keys on the numeric keypa...

Page 452: ...sure that the developing assembly locking lever is locked before execution Select TONER S in service mode then enter 1 using the numeric keypad and press the OK key to execute toner supply mode Checks remarks Keep the front doors almost closed so that light will not enter the inside of the machine This mode remains ON for a maximum of 10 min during which toner is supplied from the hopper to the de...

Page 453: ...t this to clean the developing sleeve from the front to the rear 3 After cleaning rotate the drive gear of the developing sleeve to make sure that the coating of toner on the developing sleeve is even 4 Install the developing assembly to the copier 5 Check the copy image on the copy made in step 16 if uneven density at even intervals is noted still repeat the above steps Make copies using the mult...

Page 454: ...and select data time setting under timer setting to check the current time To correct any discrepancy enter the correct year month day hour minute using the keypad and press the OK key then press the OK key select the day of the week and press the OK key once again Checks remarks For user mode see the Operator s Manual In North America at time of shipment the copier is set to one sided to two side...

Page 455: ...g assembly releasing lever developing assembly releasing lever and duplexing unit in place to prevent displacement by vibration Remove the multifeeder cover multifeeder tray and sub tray from the copier Tape the front doors delivery assembly cover hopper cover upper lower front tray and paper deck in place Place A3 copy paper on the copyboard glass and tape the RDF in place Checks remarks Check to...

Page 456: ...re saddle r and remove the metal plate Figure 5 6 6 Remove the screw from the face plate t Figure 5 7 7 Remove the protection sheet from the display of the Control Card V 8 Fix the Control Card V to the control panel with four screws y At this time insert a card i into the Control Card V u and fix the Control Card V in place where the card may be slid in and out smooth ly Figure 5 8 5 INSTALLATION...

Page 457: ...ctor 3 14 Connect the 4P connector 2 of the Control Card V and the 4P connector 3 of the copier Figure 5 11 15 Remove the protection sheet from the control panel guide plate of the Control Card V and put the plastic sheet 4 over the hole display hole of the Control Card V in the control panel Figure 5 12 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME ...

Page 458: ...stall the control panel to the copier 18 Attach the memory record sheet and the trans parent sheet 19 Turn ON the copier s power switch and check the operation of the Control Card V 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 33 5 ...

Page 459: ...ter and location 5 Keep the settings data for the device ready for the computer installed at the service station 1 Remove the two screws w of the top cover of the device and remove the cover q Figure 5 14 2 Connect the connector t of the power supply unit to the connector y of the device Figure 5 15 3 Remove the four screws i and remove the four screws i from the face plate u of the copier s rear ...

Page 460: ...p the excess length of the cable on the copier and fix it in place with the harness band 4 Figure 5 19 7 Shift bit 4 of the DIP switch 5 SW2 of the device to OFF so that the communication mode between the copier and the device is serial Figure 5 20 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 35 o 0 1 1 4 LED1 LED2 LED3 2 1 LED5 LED6 LED4...

Page 461: ...ing or replacing the ROM IC6 6 to upgrade the device Figure 5 21 9 Set each bit of the DIP switch 8 SW3 on the PCB of the device as indicated Figure 5 22 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 36 LED1 LED2 LED3 2 1 LED5 LED6 LED4 IC6 SW1 SW4 SW3 6 1 BAT1 CN4 1 2 CN3 CN2 1 2 3 4 5 6 7 8 SW2 7 6 LED1 LED2 LED3 2 1 LED5 LED6 LED4 IC6 S...

Page 462: ...OFF ON OFF Description Keep it OFF at all times Use it to select push pulse for the line circuit of the device Use it to select dial pulse for the line circuit of the device Use it to set the dial pulse speed to 20 PPS Use it to set the dial pulse speed to 10 PPS Not used SW3 1 OFF ON OFF ON SW3 1 OFF OFF ON ON Function Sets the modem signal transmission level to 16 dBm Sets the modem signal trans...

Page 463: ... Figure 5 26 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 38 LED1 LED2 LED3 2 1 LED5 LED6 LED4 IC6 SW1 SW4 SW3 6 1 BAT1 CN4 1 2 CN3 CN2 1 2 3 4 5 6 7 8 SW2 0 2 1 LED1 LED2 LED3 2 1 LED5 LED6 LED4 IC6 SW1 SW4 SW3 6 1 BAT1 CN4 1 2 CN3 CN2 1 2 3 4 5 6 7 8 SW2 0 2 1 Setting OFF OFF OFF ON OFF ON See step 8 OFF Bits on SW2 SW2 1 SW2 2 SW2 3 SW...

Page 464: ...st make sure that the settings are correct by contacting the service station 17 Check to make sure that the device is capable of calling the computer at the service station Press the push switch 1 SW4 on the PCB of the device In response LED6 7 red turns ON upon completion of transmission LED6 7 red turns OFF The LED will flash if trans mission has failed A press on the push switch 1 SW4 while LED...

Page 465: ... the top cover of the device and record all switch set tings Figure 5 32 21 Fix the top cover q of the device with two screws w Be sure that the cable of the power supply unit is fixed in position on the cable guide inside the device and not trapped by the top cover q 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 40 LED1 LED2 LED3 2 1 LED5...

Page 466: ...For sizes other than the left use service mode See 5 37 Checking the Operations See Note Function For normal operation mode For IPC communication For serial communication For using a central control device For normal operation mode or for remote control by a commercially available modem RAM clear For normal operation For normal operation For using inch configured papers 11x17 LTR LGL STMT For usin...

Page 467: ... Figure 5 34 3 Set the jumper connectors JA1 JA2 JB1 JB2 on the Copy Data Controller A1 to suit the needs of the user Figure 5 35 A To connect the Remote Diagnostic Unit A1 or the Copy Data Interface Board B1 Figure 5 36a B To NOT connect the Remote Diagnostic Unit A1 or the Copy Data Interface Board B1 Figure 5 36b For connection you must have the Power Supply A1 5 INSTALLATION COPYRIGHT 1996 CAN...

Page 468: ...er A1 connect the Card Reader A1 relay cable to J4 9P of the Copy Data Controller A1 Figure 5 37 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 43 J4 Card Reader A1 relay cable ...

Page 469: ...e 5 38 2 Connect the 8P connector of the copier and the Copy Data Controller A1 cable y Figure 5 39 3 Fix the Copy Data Controller A1 to the rear upper left cover with four screws u Figure 5 40 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 44 q w w t y u u ...

Page 470: ...ng operation Figure 5 43 4 If you are connecting the Communication Control Board A1 or the Interface Board B1 go to step 5 Does not require the Power Supply A1 Turn ON the copier s main switch and check to make sure that LED1 of the Copy Data Controller A1 turns ON and LED2 flashes Make a copy and check that LED3 flashes dur ing copying operation Figure 5 44 5 INSTALLATION COPYRIGHT 1996 CANON INC...

Page 471: ...rd 8 2 To change from card input to ID input per form the following To change from ID No to card input requires the Card Reader A1 go to 8 4 is indicated 8 3 Press the key w and press the key is indicated 8 4 To change to card input see that is indicated Then press the key q and press the key is indicated Table 5 5 MANAGE CARD ENT MANAGE ID MANAGE ID ENT MANAGE CARD 5 INSTALLATION COPYRIGHT 1996 C...

Page 472: ...antaneously when the switch is pressed c When data has been drawn successfully LED5 turns ON If the attempt to draw data has failed LED5 flashes Press the switch SW4 once again to make sure that LED5 turns ON The copier will not discharge paper while data is being drawn d Set the DIP switch SW1 of the Copy Data Controller A1 as indicated LED5 will turn OFF Table 5 7 Figure 5 49 5 INSTALLATION COPY...

Page 473: ... Data Controller A1 and the Numeric Keypad A1 To keep the existing setting go to step 11 10 2 Use and to scan through the sizes However control paper size 5 OTH cannot be changed and therefore is not shown EX 1 1 is indicated 2 Press 3 is indicated 4 Press 5 is indicated 6 Press 7 is indicated 8 Press 9 is indicated 10 Press 11 is indicated EX 2 To change B4 of control paper size 3 to LGL 1 Use an...

Page 474: ... is as shown and dis connect the Numeric Keypad A1 Figure 5 52 12 Attach the switch settings label y to the top cover of the Copy Data Controller A1 and record all the switch settings on the label Figure 5 53 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 49 Size B5 FOOLS A4 B4 A3 U SMALL US STMT U LARGE UL LTR LGL 11 X 17 A5 AFOOLS A6 FOLI...

Page 475: ...ine control is planned connect it to the RS232C I F connector of Copy Data Controller A1 Figure 5 54 15 If no part of the cable is outside the Copy Data Controller A1 end the work by attaching the petty pull to the lower right of the copier s rear Figure 5 55 16 Fix the cable connect to the Copy Data Controller A1 to the petty pull 17 Check to make sure that no cable is trapped by the copier or th...

Page 476: ...to suit the needs of the user 2 1 Shift bit 4 of the DIP switch SW1 to ON 2 2 For group control set bit 2 of the DIP switch SW5 to suit the control paper size For AB configured papers A3 A4 B4 B5 to OFF For inch configured papers LDR LTR LGL STMT to ON Figure 5 57 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 51 Caution w q 1 6 SW4 SW1 ON ...

Page 477: ...rface Board B1 Figure 5 60 For connection you must have the Power Supply A1 4 Connect the Card Reader A1 relay cable r to the 9P connector J4 e of the Copy Data Controller A1 Figure 5 61 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 52 1 6 SW4 SW1 ON SW5 ON LED6 LED5 LED4 LED3 LED2 LED1 SW2 SW3 JB2 JB1 JA1 JA2 EPROM SRAM CPU IPC JC9 JC6 JC...

Page 478: ...crews by type length diam eter and location 1 Remove the magnet plate 2 Remove the control panel 3 Remove the inlet face plate of the Card Reader A1 4 Remove the six screws q and remove the front upper cover Figure 5 62 5 Remove the seven screws w and the two screws e used to keep the grounding wire in place then remove the wire saddle r and the metal plate Figure 5 63 6 Remove the screw t from th...

Page 479: ...A1 in place where the card may be slid in and out smoothly Figure 5 65 8 Install the grounding wire i of the Card Reader A1 where indicated with a screw o Figure 5 66 9 Connect the 9P connector 0 of the Card Reader A1 and the 9P connector 1 of the copier Figure 5 67 10 Install the control panel to the copier 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPR...

Page 480: ...8P connector w of the copier and the relay cable e of the Card Reader A1 Figure 5 69 3 Fix the Copy Data Controller A1 to the mount ing with four screws D Checking the Operations For how to check the operations see p 5 45 5 INSTALLATION COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 5 55 q q w e ...

Page 481: ......

Page 482: ...CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 MAINTENANCE AND INSPECTION I PERIODICALLY REPLACED PARTS 6 1 II CONSUMABLES AND DURABLES 6 2 III SCHEDULED SERVICING 6 4 IV SCHEDULED SERVICING CHART 6 6 ...

Page 483: ......

Page 484: ...5 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON 6 1 No 1 2 3 4 Part Pre transfer transfer separation char ging wire Primary charging wire Thermistor fixing assembly Thermal switch fixing assembly Part No FY3 0030 000 FY3 0040 000 FY1 0275 000 FH7 7385 000 FH7 7154 000 Q ty AR AR AR 1 1 Life 1 250 000 1 250 000 1 250 000 1 500 000 1 000 000 Remarks 100V 208 220 240V As of end of June 1996 Note ...

Page 485: ...r re pick up Primary charging wire cleaner 1 Primary charging wire cleaner 2 Primary charging assembly grid wire Transfer charging wire cleaner 1 Transfer charging wire cleaner 2 Separation charging wire cleaner Part No FH7 3287 000 FH7 3288 000 FB2 7777 000 FB2 9269 000 FA6 8089 000 FB2 9299 000 FA6 8089 000 FC1 9410 000 FA3 1937 020 FA5 3720 000 FF5 5838 000 FB3 8809 000 FA6 7777 000 FA6 8089 00...

Page 486: ...assembly roll Bearing upper fixing roller Delivery lower separation claw Bearing lower fixing roller Part No FF5 3090 000 FB3 7820 000 FB1 9885 000 FB1 9927 000 FBI 9886 000 FC1 0391 000 FG2 1984 110 FG5 8133 000 FG5 7607 000 FF5 1960 000 FA5 3770 000 XG9 0247 000 FA2 8345 000 XG9 0300 000 Q ty 1 1 1 2 1 4 1 1 1 1 2 2 4 2 Life 1 500 000 1 500 000 1 500 000 1 500 000 1 500 000 1 500 000 1 000 000 1...

Page 487: ...oofing glass Standard white plate Heat absorption glass Clean replace the charging assembly Charging wire charging assembly Grid wire Shielding plate Roller electrode Clean the transfer guide Transfer guide plate upper lower Transfer separation charging assembly guide rail Clean the separation feeding assembly Feeding belt Checks Check the general conditions Check faulty copies Check the following...

Page 488: ...Clean the filter Ozone filter Dust proofing fan filter Check the waste toner case Provide scheduled servicing accor ding to the number of copies made See p 6 6 Clean the copyboard glass Make test copies Make sample copies Put sample copies in order and clean up the area around the machine Record the final counter reading Fill out the service sheet and report to the person in charge Checks If the w...

Page 489: ...de shoe No 1 through No 4 mirror Note Dust proofing glass Heat absorption glass Scanning lamp reflecting plate Standard white plate Scanning lens Transfer guide plate Registration roller upper lower Feeding belt Feeding rollers Re pick up assembly outlet guide Re pick up assembly sub fee ding roller Re pick up assembly pick up feeding roller Re pick up assembly separation roller Upon installa tion...

Page 490: ...et Transfer dust proofing filter Transfer dust proofing duct 1 Transfer dust proofing duct 2 Transfer dust proofing duct 3 Pre cleaning exposure cover Cleaning blade edge Developing cylinder Developing assembly roll Inlet guide Oil receptacle Cleaning belt Thermistor Thermal switch Fixing roller upper lower Separation claw upper lower Waste toner case Upon installa tion Remarks Use alcohol Dispose...

Page 491: ...ON 6 8 minimum interval for copier Item Platen glass white plate paper sensor Dustproof glass C F F mirror Optional shutter side Installation Remarks Figure 6 1 w Figure 6 1 e Figure 6 1 r Figure 6 1 t Figure 6 1 y Clean Replace Oil Adjust Check Note Use the copier counter reading as guide and carry out the works as needed r q w e t ...

Page 492: ...ENERAL CIRCUIT DIAGRAM A 5 D DC CONTROLLER PCB A 7 E CONTROL PANEL PCB A 57 F LCD INVERTER PCB A 62 G CONTROL PANEL TRANSIT PCB A 63 H LCD TRANSIT PCB A 64 I LAMP REGULATOR PCB A 65 J HIGH VOLTAGE TRANSFORMER PCB A 66 K SIDE TRAY DRIVE PCB A 70 L C F F GENERAL CIRCUIT DIAGRAM A 73 M C F F CONTROLLER A 74 N LIST OF SPECIAL TOOLS A 75 O SOLVENTS AND OILS A 76 ...

Page 493: ......

Page 494: ...ick up sensor Q48 Upper front tray pick up paper trailing edge sensor Q24 Pre registration sensor Q30 Registration clutch CL10 Delivery sensor Q15 Cleaning belt drive solenoid SL1 Scanning cooling fan 1 2 3 FM1 10 11 developing fan FM5 Scanner motor cooling fan primary charging assembly exhaust fan FM8 9 ON green ON orange 36 28 130V VD 8time VD 8time VL2 8time VL1 8time VL2 8time VL1 8time VL2 80...

Page 495: ...lutch CL10 Pick up motor M1 Pick up clutch CL1 Paper retaining solenoid 2 SL5 Pick up sensor 2 SL15 Skew sensor 2 S16 Belt motor M3 Image leading edge signal Reversing motor M2 Reversal sensor S5 Delivery motor M5 Delivery sensor S6 Feeding motor M1 Sort paper path sensor PI4 Guide bar motor M8 Stapler unit shift motor M3 Stapler swing motor M4 Stapler swing stop position sensor MSW2 Stapler motor...

Page 496: ...LATE SOLENOID DRIVE signal LFPS LOWER FRONT TRAY PICK UP DETECTION signal LINT INTENSITY CONTROL signal LLTP LOWER FRONT TRAY LIFTER POSITION DETECTION signal LPUCD LOWER FRONT TRAY PICK UP ROLLER DRIVE signal LPRSD LOWER FRONT TRAY PICK UP ROLLER RELEASING SOLENOID DRIVE signal LRD SCANNING LAMP ON signal LSPE LOWER SIDE TRAY PAPER ABSENT DETECTION signal LSTAS LOWER SIDE TRAY PAPER LEVEL DETECTI...

Page 497: ...PAPER DEFLECTING PLATE DRIVE signal SF1D OPTION CONNECTION signal SFS PAPER DECK PAPER FEEDING DETECTION signal SHOND SUB HEATER DRIVE signal SMON DUPLEXING UNIT PICK UP MOTOR DRIVE signal STC SIDE TRAY CONNECTION DETECTION signal STDO SIDE TRAY DOOR OPEN DETECTION signal STLLD SIDE TRAY LIFTER LOWER LIMIT DETECTION signal STLMON PAPER DECK MOTOR ON signal STLUD UP DOWN SWITCH signal SLTP SIDE TRA...

Page 498: ...COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON A 5 ...

Page 499: ...rear 5 Mirror positioning tool rear TKN 0510 B Use it when adjusting the position of mirrors 1 and 2 use it together with the mirror positioning tool front TKN 0464 CLEANNING OIL HUILE DE NETTOYAGE CANON INC JAPAN JAPON Speing scale compression CK 0054 B Measuring strength of casette springs Adjusting scanner drive cable tension 2 6 Electrode potential sensor TKN 0197 B For checking the potential ...

Page 500: ... e g fixing drive assemblies Lithium soap mineral oil family Moblybdenum bisulfide CK 0427 500 g can 4 Lubricant oil Lubricating scanner rail spring clutch Mineral oil paraffin family CK 0451 100 cc 5 Lubricant oil Lubricating pick up assembly roller bushing FS2 1005 000 Mineral oil paraffin family CK 0524 100 cc 2 MEK Cleaning e g metal oil or toner CH3COC2H5 Do not bring near fire Procure locall...

Page 501: ...FFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPT 1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIV CANON INC Printed in Japan REVISION 1 JULY 1996 03595 31625 74427 71720 30 2 Shimomaruko 3 chome Ohta ku Tokyo 146 Japan ...

Page 502: ...PRINTED IN JAPAN IMPRIME AU JAPON 0697AB0 6 3 This publication is printed on 70 reprocessed paper ...

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