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Canon NP6218, Service Manual

The Canon NP6218 Service Handbook is a comprehensive manual for troubleshooting and maintaining your NP6218 printer. You can easily download this manual for free from manualshive.com, providing you with step-by-step instructions and detailed diagrams to keep your printer running smoothly.

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SERVICE
MANUAL

REVISION 0

FY8-13EX-000

MAY 1997

COPYRIGHT  ©  1997  CANON INC.

CANON  NP6218  REV.0  MAY 1997  PRINTED IN JAPAN (IMPRIMÉ AU JAPON)

Summary of Contents for NP6218

Page 1: ...SERVICE MANUAL REVISION 0 FY8 13EX 000 MAY 1997 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIMÉ AU JAPON ...

Page 2: ...SERVICE DEPARTMENT OF THE SALES COMPANY THIS DOCUMENTATION IS INTENDED FOR ALL SALES AREAS AND MAY CONTAIN INFORMATION NOT APPLICABLE TO CERTAIN AREAS COPYRIGHT 1997 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 TECHNICA...

Page 3: ...pter 4 Image Formation System discusses the principles of how images are formed It also explains the timing at which the various units involved in image formation are operated and shows how they may be disassembled assembled and adjusted Chapter 5 Pick Up Feeding System explains the principles used from when copy paper is picked up to when a copy is delivered in view of the functions of electrical...

Page 4: ...ectric signal The expression turn on the power means flipping on the power switch closing the front door and closing the delivery unit door which will result in supplying the machine with power 2 In the digital circuits 1 is used to indicate that the voltage level of a given signal is High while 0 is used to indicate Low The voltage value however differs from circuit to circuit In practically all ...

Page 5: ...e by one from a stack set on its tray Stapler Sorter B2 D1 MS B1 Automatically sorts or page collation or groups up to 10 sets of copies with the sorting function the sorted copies may automatically be stapled Not applicable to MS B1 Control Card IV N Allows the user to control copy volume Cassette Feeding Module A2 Adds additional two cassettes Cassette Feeding Module B2 Adds an additional casset...

Page 6: ...1 GENERAL DESCRIPTION COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAR 1997 PRINTED IN JAPAN IMPRIMÉ AU JAPON iv ...

Page 7: ...10 Initializing User Mode 1 17 11 Quick Guide to User Mode 1 18 E Handling the Toner Bottle 1 19 V WARNINGS AND ACTIONS 1 19 VI ROUTINE MAINTENANCE BY THE USER 1 19 VII IMAGE FORMATION 1 20 A Outline 1 20 CHAPTER 2 BASIC OPERATION I BASIC CONSTRUCTION 2 1 A Functional Construction 2 1 B Outline of the Electrical Circuitry 2 2 C Basic Sequence of Operations 2 copies continuous AE 2 3 D Main Motor C...

Page 8: ... a Constant Voltage 4 15 4 Controlling the Transfer Bias Voltage Level Correction ATVC control 4 15 5 Current Limiter Circuit transfer bias 4 15 6 Current Limiter Circuit cleaning bias 4 15 F Controlling the Static Eliminator Bias 4 16 CHAPTER 4 IMAGE FORMATION SYSTEM CHAPTER 3 EXPOSURE SYSTEM I BASIC OPERATION 3 1 A Varying the Reproduction Ratio 3 1 II LENS DRIVE SYSTEM 3 1 A Outline 3 1 B Lens ...

Page 9: ... Fluorescent Lamp Heater Scanning Lamp 4 32 3 Detaching the Blank Exposure Assembly 4 34 4 Detaching the Blank Exposure Lamp 4 35 5 Detaching the Blank Shutter Solenoid 4 36 6 Positioning the Blank Shutter Solenoid 4 37 7 Routing the Blanking Cable 4 38 8 Positioning the Left Right Margin 4 38 B Drum Unit 4 39 1 Detaching the Drum Unit 4 39 2 Cleaning 4 40 C Primary Corona Assembly 4 41 1 Detachin...

Page 10: ...hing the Upper Registration Roller 5 31 3 Detaching the Lower Registration Roller 5 33 D Feeding Assembly 5 34 1 Detaching the Feeding Belt 5 34 E Cassette Unit 5 36 1 Detaching the Copier from the Cassette Unit 5 36 2 Detaching Attaching the Pick Up Roller 5 36 3 Detaching the Pick Up Clutch 5 36 CHAPTER 6 FIXING SYSTEM I BASIC OPERATIONS 6 1 A Outline 6 1 B Controlling the Fixing Heater Temperat...

Page 11: ...oints to Note When Replacing the DC Controller PCB 7 17 G Composite Power Supply PCB 7 18 1 Detaching the Composite Power Supply PCB 7 18 2 Points to Note When Handling the Composite Power Supply PCB 7 20 H AE Sensor PCB 7 21 1 Points to Note When Replacing the AE Sensor 7 21 I Intensity Sensor PCB 7 21 1 Points to Note When Replacing the Intensity Sensor 7 21 I SELECTING THE SITE 8 1 II UNPACKING...

Page 12: ... Up Feeding System 10 25 1 Orientation of the Pick Up Roller 10 25 2 Orientation of the Multifeeder Pick up Roller 10 25 3 Positioning the paper Guide Plate Cam multifeeder 10 26 E Fixing System 10 27 1 Points to Note when Attaching the Fixing Film 10 27 2 Points to Note when Attaching the Heater Connector 10 27 3 Adjusting the Fixing Film Drive Roller Pressure 10 28 4 Points to Note after Replaci...

Page 13: ...reverse 10 74 23 The registration roller fails to rotate 10 74 24 The scanning lamp fails to turn on 10 75 25 The lens fails to move 10 75 26 The fixing heater fails to operate 10 76 27 The pre exposure lamp fails to turn on 10 76 28 The add paper indicator fails to turn off 10 76 29 The jam message fails to turn off 10 77 V TROUBLESHOOTING FEEDING PROBLEMS 10 78 A Jams copy paper 10 78 1 Pick Up ...

Page 14: ... INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIMÉ AU JAPON xii APPENDIX A GENERAL TIMING CHART A 1 B SIGNALS AND ABBREVIATIONS A 2 C GENERAL CIRCUIT DIAGRAM A 3 not available D SPECIAL TOOLS A 5 E SOLVENTS OILS A 6 ...

Page 15: ...MES OF PARTS 1 6 A Exterior View 1 6 B Cross Section 1 7 IV OPERATION 1 9 A Control Panel 1 9 B Operation Mode 1 10 C Making Two Sided Overlay Copies manual 1 11 D User Mode 1 12 E Handling the Toner Bottle 1 19 V WARNINGS AND ACTIONS 1 19 VI ROUTINE MAINTENANCE BY THE USER 1 19 VII IMAGE FORMATION 1 20 A Outline 1 20 This chapter introduces features and specifications and explains how the machine...

Page 16: ... copier is designed as a clamshell type to facilitate clearing of jammed paper 3 Dependable high image quality The new HQ high quality toner ensures faithful reproduction of solid black text and photos In addition to Canon s own single component toner projection development method the use of auto image control AIC ensures stable reproduction of images 4 Practical basic features As many as 18 copie...

Page 17: ...Description Desk top Fixed Fluorescent lamp Zoom OPC ø30 Item Copying Charging Exposure Copy density adjustment Development Pick up Auto Manual Transfer Separation Cleaning Fixing Description Indirect electrophotographic Roller direct charging Slit moving light source Automatic AE or manual Dry toner projection 1 cassette Multifeeder Roller Curvature static eliminator Cleaning blade Fixing by plan...

Page 18: ... A3 11 17 to A5 STMT 3 94 5 88 Manual A3 11 17 to postcard vertical Plain paper 64 to 80 g m2 tracing paper SM1 colored paper recycled paper 64 to 80 g m2 ecology paper 80 g m2 Plain paper 64 to 80 g m2 tracing paper SM1 GNT80 colored paper recycled paper 64 to 80 g m2 ecology paper 80 g m2 transparency postcard label sheet thick paper 81 to 128 g m2 Plain paper 64 to 80 g m2 colored paper postcar...

Page 19: ...ver 8 hr Dimensions Width Depth Height Weight Consumables Copy paper Cartridge Specifications 7 5 C to 32 5 C 45 5 F to 90 5 F 5 RH to 85 RH 810 6 hPa to 1013 3 hPa 0 8 to 1 atm Serial numbers UCDXXXXX 1 5 kW or less 97 2 kJ per hr 27 wh average reference only 2088 kJ 580 wh average reference only 49 7 dB or less 1 m front Sound power level by ISO method 0 01 ppm or less average 0 02 ppm or less m...

Page 20: ...eproduction ratio DIRECT 1 1 0 5 REDUCE 1 0 500 1 0 1 0 707 1 0 ENLARGE 1 2 000 1 0 1 1 414 1 0 Copy size A3 297 420 A4 210 297 A5 148 210 A4R 297 210 A5R 210 148 A3 A5R A3 A4R A4 A5 A5R A3 A4R A3 A5 A4 Copy paper Cassette Power supply Dimensions Weight As per copier As per copier 34 V DC 24V 5V from copier Cassette Feeding Module B2 585W 622D 105H mm 23 0in x 24 5in x 8 3in Cassette Feeding Modul...

Page 21: ...97 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 1 GENERAL DESCRIPTION 1 6 q Copyboard cover w Power switch e Clip tray r Multifeeder t Cassette y Front door u Control panel i Copyboard glass q Open close lever w Copy density correction knob e Static eliminator cleaner r Heater switch t Copy tray y Static eliminator ...

Page 22: ... i Exhaust fan o Pre exposure lamp 0 Primary charging roller 1 Reflecting plate 2 No 6 mirror 3 Developing cylinder 4 Developing assembly 5 No 5 mirror 6 No 4 mirror 7 Multifeeder tray 8 Multifeeder pick up roller 9 Cassette pick up roller 0 Registration roller 1 Transfer roller 2 Separation static eliminator 3 Photosensitive drum 4 Feeding assembly 5 Cassette 6 Fixing film 7 Film tension roller 8...

Page 23: ...OPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 1 GENERAL DESCRIPTION 1 8 q Cassette 2 w Cassette 3 e Cassette 2 pick up roller r Cassette 3 pick up roller t Drive roller y Feeding roller 6 4 2 1 3 5 ...

Page 24: ... 1 1 123 Autom Paper A3 A4 A4R A5 A5R A4R Autom Zoom Zoom q w e r t y u i o 1 2 0 1 2 3 4 5 6 7 8 9 0 q Image Compose key w Page Separate key e Warning indicator r Display t key y Reset key u Keypad i Power switch o Interrupt key 0 Clear key 1 Stop key 2 Start key 3 Auto Ratio key 4 Zoom key 5 Paper Select key 6 Cassette Jam indicator 7 Direct key 8 Reduce Enlarge key 9 Copy density key 0 AE key 1...

Page 25: ...ode Sort staple sort group mode Description Press to set reset image composition mode Press to set reset page separation mode Press to interrupt an ongoing copying session Press it to set reset auto ratio mode Press to set re set AE mode or user mode Press it to select reset sort staple sort or group mode Remarks Only when an ADF accessory is installed Only when an ADF accessory is installed Only ...

Page 26: ...re that the paper has not absorbed moisture e Make sure that the paper has no curling r After copying on the first side sufficiently cool the paper then correct any curling before feeding it for a second time t Use paper of 60 to 128 g m2 y Correct any curling on postcards or thick paper 128 g m2 before copying on the second side Figure 1 405 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PR...

Page 27: ...nstalled Option Selecting a densi ty adjustment method for standard mode Initializing user mode Description You may set the auto clear time between 1 and 9 min in 1 min increments Setting it to 0 disables the function You can set the auto power off time to either 2 5 10 15 30 60 or 120 min You can correct a slight discrep ancy between original and copy sizes direct enlarge in X direc tion and redu...

Page 28: ...changed The setting of the respective user mode is changed 6 Press the AE key The copier returns to standby state 3 Changing the Auto Clear Time 1 Hold down the AE key for 4 sec or more appears on the display 2 Press the Start key The display indicates the current setting if initial indicates 1 2 3 Enter a desired setting using the keypad The display indicates the new setting if 5 min indicates 1 ...

Page 29: ...e 1 404 Further the copy density indicator shows the current setting See Figure 1 406 4 Press the copy density key to adjust the reproduction ratio in X direction See Figure 1 406 5 Press the Start key The reproduction ratio in X direction is fine adjusted and the display indicates 3 2 Further the copy density indicator shows the current setting See Figure 1 406 6 Press the Density key to adjust t...

Page 30: ... 1 402 6 Turning On and Off the Auto Cassette Change Mechanism 1 Hold down the AE key for 4 sec or more The display indicates 2 Enter r using the keypad so that the display indicates 3 Press the Start key The display indicates the current setting if initial setting 4 1 Table 1 405 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 1 GENERAL DESCRIPTION 1...

Page 31: ...e new setting if Off 5 0 5 Press the Start key The auto cassette change will be either On or Off and the display returns to 6 Press the AE key The copier returns to standby state 8 Cleaning the Feeder with ADF installed option 1 Hold down the AE key for 4 sec or more The display indicates 2 Enter y using the keypad so that the display indicates 3 Place about 10 sheets of blank copy paper white on ...

Page 32: ...s to 6 Press the AE key The copier returns to standby state 10 Initializing User Mode 1 Hold down the AE key for 4 sec or more The display indicates 2 Enter p using the keypad so that the display indicates 3 Press the Start key The display indicates 0 1 4 Enter p using the keypad The display indicates 5 Press the Start key User mode is initialized and the display returns to 6 Press the AE key The ...

Page 33: ...11 Quick Guide to User Mode Table 1 408 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 1 GENERAL DESCRIPTION 1 18 ...

Page 34: ...pose of any empty toner bottle as nonflammable material Caution Do NOT throw the cartridges into fire it can burst or explode VI ROUTINE MAINTENANCE BY THE USER Make sure that the user cleans the following parts once a week q Copyboard Glass Use a cloth moistened with water or mild detergent solution then dry wipe it w Copyboard Cover Use a cloth moistened with water or mild detergent solution the...

Page 35: ...echanism to ensure stable reproduction of high quality images COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 1 GENERAL DESCRIPTION 1 20 Copyboard glass Scanning lamp Lens Pre exposure lamp Primary corona roller Developing cylinder Static eliminator Transfer roller Fixing film Pressure roller Cleaning assembly Pick up multifeeder Pick up cassette ...

Page 36: ...itive DC Step 7 Fixing Step 8 Drum cleaning Figure 1 602 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 1 GENERAL DESCRIPTION 1 21 Static latent image formation block 2 Primary charging 1 Pre exposure 8 Drum Cleaning 5 Transfer 3 Image exposure 4 Development Manual feeding Registration Cassette flow of copy paper rotation of drum 6 Separation Deliver...

Page 37: ...COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 1 GENERAL DESCRIPTION 1 22 ...

Page 38: ...ence of Operations 2 copies continuous AE 2 3 D Main Motor Control Circuit 2 4 E Inputs to the DC Controller PCB 2 5 F Outputs from the DC Controller PCB 2 8 G Inputs to and Outputs from the 1 Cassette Unit Driver PCB 2 11 H Inputs to and Outputs from the 2 Cassette Unit Driver PCB 2 12 This chapter provides outlines of the copier s various operational workings Note that a single rotation of the d...

Page 39: ...rol system Control circuit assembly Control assembly Tray Fixing assembly Feeding assembly Drum cleaning assembly Primary charging Optical path Photosensitive drum Separation Transfer Pick up feeding system 1 Pick up feeding system 2 Copyboard Exposure system Scaning lamp assembly Image formation system Developing assembly Pick up control assembly Cassette Feeding module B2 Cassette Feeding module...

Page 40: ... thermistor Control panel Power switch Control card accessory Sensor DC controller PCB Cassette Driver PCB accessory Composite power supply High voltage circuit ADF accessory Sorter accessory Scanning lamp heater switch Options power supply Toner level detection PCB Bias PCB Developing cylinder Transfer current Static eliminator Primary crrent Main motor Pre exposure lamp Motor Scanning motor Lens...

Page 41: ...pending on the cassette size and reproduction ratio The distance of reverse travel varies depending on the selected reproduction ratio While the scanner is moving in reverse Between when SCRV is over and when the copy paper moves past the delivery sensor Until the Copy Start key or another operation key is pressed The drum sensitivity is stabilized in preparation for a copy run The scanner is move...

Page 42: ...f the motor driver turns on thereby rotating the main motor M1 at a constant speed While the main motor is rotating at a specific speed the motor driver PCB keeps sending the specific speed state signal 0 MLOCK to the DC controller PCB If for some reason an irregularity occurs in the rotation of the main motor the MLOCK signal goes 1 If the main motor drive signal MMD remains 1 and the MLOCK 0 rem...

Page 43: ...ette paper sensor 5V J313 1 3 2 MFPD When paper is present in cassette 0 when light blocking plate is not at PS5 0 PS 5 Multifeeder paper sensor 5V J314 3 2 1 RPD PS 6 J314 4 6 5 FFD When PS9 detects film 0 when light blocking plate is at PS9 1 PS 7 Fixing film sensor J304 13 12 11 PS 9 Separation sensor DC controller PCB 5V 5V RDOP When right door is opened 0 when light blocking plate is not at P...

Page 44: ...Main switch Multifeeder paper width detection Main thermistor TH1 Sub thermistor TH2 See p 5 8 J601 1 2 3 4 J307 7 6 5 4 J604 2 1 J356 1 2 AE sensor See p 4 27 See p 4 4 J701 2 4 3 1 J317 3 5 4 2 Light adjusting sensor AE AEREF AEVR1 AEVR2 24V 24V 5V L1D MFPWD TH1 TH2 VR1 SW829 DC controller PCB On the control panel PCB keys and LEDs are arranged in a matrix and the DC controller turns on the LEDs...

Page 45: ...3 Inputs to the DC Controller PCB 3 3 Figure 2 107 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 2 BASIC OPERATION 2 7 ...

Page 46: ...er switch SW2 Fluorescent lamp heater H2 Fluorescent lamp FL1 Primary charging roller Developing cylinder Transfer roller Static eliminator Door switch Fixing heater driver Heater ON detection PCB Toner level detection sensor Thermal control circuit Scanning lamp control circuit High voltage circuit Composite power supply PCB Micro processor DC controller PCB See p 6 1 When 0 RL102 turns on When 0...

Page 47: ...ns off blank width control When 0 solenoid turns on lens mount moves SL1 24V Change solenoid When 0 solenoid turns on holding plate released When 0 solenoid turns on blank shutter opens When 0 solenoid turns on cleaning pad butted When 0 solenoid turns on causing transfer roller to move down See p 5 1 See p 3 7 See p 3 3 See p 6 10 MLOCK MMD 5V 34V M1 M2 J206 1 2 J501 1 2 J502 4 1 2 3 J03 1 4 3 2 ...

Page 48: ...320 1 J310 4 1 2 3 J802 13 16 15 14 J803 2 4 3 1 2 J401 1 2 HEFD 24V PEXP 24V TCNTD 5V CCD CCDT Heat exhaust fan FM1 Pre exposure lamp Total copy count Control card IV N Control panel DC controller PCB When 0 heat exhaust fan on heat exhaust fan rotates When 0 the pre exposure lamp turns on When changes from 0 to 1 count is incremented When 0 count is incremented When 0 control card is present ...

Page 49: ...te 2 paper sensor When PS1 detects paper 1 when the light blocking plate is at PS1cu 1 When paper is present in cassette 0 when light blocking plate is not at PS2cu 0 Cassette driver PCB DC controller PCB J651 6 5 4 3 2 1 J110 7 8 9 10 11 12 CS2 C2SZ_1 C2SZ_2 C2SZ_3 C2SZ_4 Cassette 2 size detection See p 5 8 CMA CMA CMB CMB J114 1 2 3 4 5 6 Cassette unit motor While M1cu is rotating alternates bet...

Page 50: ...blocking plate is not at PS2cu 0 5V J120 13 15 14 J120 10 12 11 PS3cu C3VPD Cassette 3 vertical path sensor 5V PS4cu CS3PD Cassette 3 paper sensor When PS3cu detects paper 1 when light blocking plate is at PS3cu 1 When paper is present in cassette 0 when light blocking pale is not at PS4cu 0 5V J120 1 3 2 PS5cu CRDOP Cassette right door open closed sensor When right door is opens 0 when light bloc...

Page 51: ... 2 13 Cassette driver PCB DC controller PCB CMA CMA CMB CMB J114 1 2 3 4 5 6 Cassette unit motor While M1cu is rotating alternates between 1 and 0 pulse signal M1cu When 0 pick up clutch turns on pick up roller rotates C2PUCLD CL1cu 24V 24V 24V J125 1 2 Cassette 2 pick up clutch When 0 the pick up clutch turns on pick up roller rotates C4PUCLD CL2cu 24V J125 3 4 Cassette 3 pick up clutch ...

Page 52: ...COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAR 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 2 BASIC OPERATION 2 14 ...

Page 53: ...asic Sequence of Operations lens drive system non Direct 3 4 III SCANNING DRIVE SYSTEM 3 5 A Driving the Scanner 3 5 IV DISASSEMBLY AND ASSEMBLY 3 9 A Scanner Drive Assembly 3 9 B Lens Drive Assembly 3 18 This chapter discusses the principles of operation used for the copier s lens drive unit and scanner drive unit It also explains the timing at which these drive units are operated and shows how t...

Page 54: ...4 18 When the lens is moved the solenoid SL1 is turned on to engage the relay gear with the lens gear when the lens motor rotates in the direction of the arrow in this condition the lens is moved in the direction of enlargement by the work of the relay lens gear and lens cable The blank exposure shutter on the other hand moves according to the distance traveled by the lens for reduction thereby bl...

Page 55: ...hange solenoid SL1 Lens motor M3 Lens cable Lens motor M3 Change solenoid SL1 Relay gear SL1 ON lens drive SL1 OFF blank exposure unit drive Lens home position sensor PS2 Lens gear Relay gear Lens Cam groove Enlargement Lens motor drive signal Change solenoid drive signal CHSLD Lens home position detection signal LHP DC controller ...

Page 56: ... LNSB and LNSB are caused to go OFF thereby stopping and retaining the motor stationary 2 Driving the Lens Motor Pulses are applied to each phase in sequence to rotate the motor Figure 3 202 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 3 LNSC B LNSC A LNSA LNSA LNSB LNSB J306 1 34V 4 5 6 2 3 M3 DC controller PCB Microprocessor Q...

Page 57: ...Direct Figure 3 203 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 4 AA À ÁÁ A À Á INTR Power switch ON Copy Start key ON STBY SCFW SCRV SCFW SCRV LSTR AER Scanner home position sensor PS1 Registration sensor PS6 Scanner Scanning lamp Forward Reverse Half pre heating Full pre heating Half pre heating Unless it is at the home posit...

Page 58: ...rdless of the reproduction ratio when the scanner is moving in reverse 2 5 times as fast as when the scanner is moving forward The distance traveled by the scanner varies according to the length of copy paper and the selected reproduction ratio Figure 3 301 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 5 SC COM A SC COM B SC A SC...

Page 59: ...TER 3 EXPOSURE SYSTEM 3 6 Scanner sensor PS1 scanner home position sensor SCHP Signal Scanner Forward Reverse Registration clutch turns on After 0 1 sec the scanner stops moving in reverse Description LSTR AA À ÁÁ AA ÀÀ ÁÁ INTR Power switch ON Copy Start key ON STBY SCFW SCRV SCFW SCRV AER Scanner home position sensor PS1 Registration sensor PS6 Scanner Scanning lamp Forward Reverse Half pre heati...

Page 60: ...e motor drive circuit The scanner motor is a 4 phase control stepping motor and is used to control the sequence of drive pulses SC A through SC B and frequency thereby controlling the direction of scans and speed The motor drive voltage ON OFF switching circuit supplies or deprives the motor with or of power thereby controlling the motor drive The current switching control circuit sets the current...

Page 61: ... have a mechanism that detects the size of originals for this reason control for page separation is exerted with reference to the size of the cassette If the distance traveled by the scanner forward II in Figure 3 304 exceeds 216 mm approx the copier assumes a point corresponding to 216 mm to be the leading edge of the second page The size of originals is checked only if an ADF accessory is instal...

Page 62: ...se the washer when assembling the part 5 A washer is used for some mounting screws for grounding wire varistor to ensure correct electrical continuity be sure to use the washer when assembling the part 6 As a rule do not operate the machine while any of its parts are removed 7 When sliding out the duplexing unit or the fixing assembly be sure to turn off the front door switch or the power switch A...

Page 63: ...s 3 Detach the control panel 4 Detach the copyboard cover support q Figure 3 402 5 Remove the six screws w and detach the upper left stay e Figure 3 403 6 Fix the cable in place using a pully clip FY9 3010 Figure 3 404 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 10 q w w e w w ...

Page 64: ... align the long hole in the front side plate and the cable fixing screw t Then detach the cable fixing screw t to separate the No 1 mirror mount and the scanner cable both front and rear Figure 3 406 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 11 r t t front rear ...

Page 65: ...7 2 Fit the screw removed in step 1 in position A and tighten it slightly 3 Extend the arm accommodated by the main frame unit it butts against the stopper as in Figure 3 408 4 Tighten the screw Figure 3 408 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 12 A A B B Position B A A B B Position A ...

Page 66: ...when routing the scanner cable Further if you are using the mirror positioning tool assemble it in advance by referring to 3 Assembling the MIrror Positioning Tool Figure 3 409 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 13 A A B B ...

Page 67: ...to the left stay 6 Loosen the screws on the drive pulley once so that the tension of the scanner cable is even as in 0 then tighten it once again 7 Fix the No 1 mirror mount and the scanner cable fixing as in 1 8 Make adjustments so that the length of the cable is 34 1 mm as in o using a ruler Figure 3 410 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPT...

Page 68: ...he spring see the diagrams below If not attached correctly its hook tip could interfere with the cable Figure 3 411 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 15 Wirespring Wirespring Hook Hook Cable Cable ...

Page 69: ...ar hole in the front side plate and the cable fixing screw q Figure 3 412 3 Loosen the set screw on the pulley 4 Set the mirror positioning tool w to the No 1 mirror mount and the No 2 mirror mount both front and rear Figure 3 413 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 16 q front rear front front Mirror positioning tool fr...

Page 70: ...r No 6 Mirror 1 Open the front cover 2 Open the copier by operating the copier open close lever 3 Detach the dust proofing glass q and dust proof mirror cover w Figure 3 415 4 Clean the No 6 mirror using a blower brush or lint free paper moistened with alcohol COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 17 e front rear q w ...

Page 71: ...yboard glass 3 Move the No q mirror assembly 1 to the left 4 Remove the two screws w and detach the lens cover e Figure 3 416 5 Loosen the tension on the spring r and detach the cable t Figure 3 417 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 18 q e w w r t ...

Page 72: ...Remove the two screws and disconnect the connector 0 then detach the lens motor 1 Caution Disconnect the connector 0 first before removing the screw o otherwise the harness and driver will come into contact with each other COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 19 y i u ...

Page 73: ...e to each pulley q while winding it around the lens pulley w as indicated in Figure 3 421 2 Move the tension pulley e to hook the cable COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 20 1 o 0 2 1 SL Turn clockwise three times 3 ...

Page 74: ...n the direction of b by the arm e when the steel core q of the solenoid is fully pushed in the direction of B by a finger i e when the E ring w comes into contact with the solenoid Figure 3 422 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 21 a b B A 5 4 4 2 1 3 ...

Page 75: ...COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAR 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 3 EXPOSURE SYSTEM 3 22 ...

Page 76: ...na Roller Cleaning Mechanism 4 20 I Releasing the Transfer Roller 4 21 II DEVELOPING ASSEMBLY AND CLEANING ASSEMBLY 4 22 A Outline 4 22 B Controlling the Toner Level Detection 4 23 C Controlling the Development Bias 4 25 D Automatic Control of Copy Density 4 27 III DISASSEMBLY AND ASSEMBLY 4 30 A Illumination Assembly 4 30 B Drum Unit 4 39 C Primary Corona Assembly 4 41 D Transfer Charging Assembl...

Page 77: ...veloping bias control blank exposure lamp control Figure 4 101 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 1 Pre exposure lamp Scanning lamp Blade Cleaning blade Transfer corona assembly Paper Composite Power Supply PCB DC controller PCB Light area Optical image Primary corona assembly Dark area Developing cylinder Photo...

Page 78: ...RMATION SYSTEM 4 2 DC controller PCB Microprocessor Q301 AE sensor Scanning lamp Copyboard glass Lens Blank exposure unit Primary charging roller Composite power supply Scanning lamp ON control circuit assembly Microprocessor Q512 High voltage circuit assembly T101 Static eliminator Developing cylinder Transfer roller ...

Page 79: ...P6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 3 S T Main motor Pre exposure lamp Primary charging Transfer charging Transfer cleaning Reference bias ATVC Separation static eliminator Developing bias AC component Developing bias DC component Scanning lamp Power switch ON Copy Start key ON AER 1 STBY INTR SCFW SCRV SCFW SCRV LSTR 2 3 4 2 3 4 2 S ...

Page 80: ...nt lamp adjusting sensor is used to monitor the intensity of the lamp during copying operation thereby controlling it to a specific value In addition half pre heating is executed between power on and a press on the Copy Start key so as to ensure that the lamp reaches its optimum intensity within a short period of time after a press on the Copy Start key thereafter full pre heating is performed See...

Page 81: ...ntroller by varying the duty ratio of the fluorescent lamp pre heat signal FLPRHT pulse of 5 kHz to suit each pre heat control mode sent to each scanning lamp pre heat circuit Based on the signal the scanning lamp pre heat circuit modulates the amplitude of the signal 32 kHz in response the secondary side of the transformer T401 turns on to allow the fluorescent lamp pre heat current to flow there...

Page 82: ...igure 4 106 Full Pre Heating Control initial rotation last rotation part of scanner reverse travel Figure 4 107 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 6 FLON signal FLPRHT signal OFF 5KHz 5V 0V 25 9 Duty ratio 5 kHz Filament voltage Half preheating 25 9 2 5Vrms Full preheating 60 4 5Vrms Fluorescent lamp ON I 44 4 3...

Page 83: ...of the fluorescent lamp is too high at power on The starting power of the intensity adjustment sensor rises and the fluorescent lamp intensity adjustment signal FLS of the amplifier circuit on the DC controller PCB decreases In response to the signal the microprocessor Q512 on the composite PCB increases the duty ratio thereby decreasing the ON time of the FLON signal Caution Gain Adjustment for t...

Page 84: ...tage the fluorescent lamp heater control circuit on the composite power supply PCB turns on and off the fluorescent lamp heater drive signal FLTHON You can force the fluorescent heater off by turning off the scanning lamp fluorescent lamp heater switch SW2 during the months in which the heater is not needed COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAP...

Page 85: ...amp fails or flickers continuously after copying is started the microprocessor on the DC controller increases the application voltage to turn on the lamp properly This however imposes an excessive voltage to the fluorescent lamp speeding up its deterioration To prevent such a problem the DC controller turns off the power when an error in the application voltage is detected on the composite power s...

Page 86: ...el The main transformer T101 is driven by the drive signal MPWM generated by the main transformer T101 The main transformer T101 further is used also as the high voltage transformer for the DC power supply and others in addition to providing the above functions Figure 4 111 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 10 ...

Page 87: ...ary charging roller the microprocessor Q512 on the composite power supply PCB reads the PDCS signal analog signal from the voltage detection circuit to control the PDCPWM signal so that the output voltage is maintained at a specific level 4 Switching the Primary Charging Roller Bias Application Voltage Level The copier applies a cleaning bias to the transfer roller during initial rotation INT whil...

Page 88: ...nt light potential VL and dark potential VD See the following for the flow of operations that occur after the power is switched on and during initial rotation Flow A constant voltage of about 1 46 kV is applied to the primary charging roller for about 1 5 sec The current at the time is measured by the current detection circuit and the result is sent to the microprocessor Q512 The microprocessor Q5...

Page 89: ...the toner from the transfer roller to the photosensitive drum Cleaning Bias Output Timing during initial rotation after a press on the Copy Start key while the scanner is moving in reverse certain period during last rotation certain period c Reference Bias ATVC Changes in the environment or deterioration of the transfer roller can affect the resistance of the transfer roller ultimately affecting t...

Page 90: ...ON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 14 DC power supply assembly 24V Transfer bias control circuit Composite power supply PCB Photosensitive drum Transfer roller Transformer circuit 24V T402 TFWON TFWPWM TFWS TREVON Constant voltage control circuit Current limiter circuit transfer bias Constant current circuit ATVC Current limiter ...

Page 91: ...oprocessor Q512 on the composite power supply PCB takes in the transfer roller application voltage at the time from the constant voltage control circuit and sends the data to the microprocessor Q512 on the DC controller the DC controller in turn determines the level of the voltage to be applied to the transfer roller based on the data This control is executed only once during initial rotation imme...

Page 92: ...s the static eliminator bias voltage level Figure 4 114 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 16 Composite power supply PCB Main transformer T101 JLVCTL JCTL MPWM Microprocessor Q512 J211 11 15 J210 1 6 J302 J301 Microprocessor Q301 Transformer T101 drive circuit Static eliminator bias drive circuit Transformer cir...

Page 93: ...V 4 0 kV is switched by the JLVCTL signal When the JCTL signal turns on the drive circuit turns on to generate the static eliminator bias 3 Ensuring Proper Separation of Thin Paper Under some environmental conditions thin paper can fail to separate at times To ensure proper separation the voltage applied to the static eliminator may be permanently set to 4 0 kV To do this use service mode No 506 s...

Page 94: ...er Figure 4 115 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 18 Lens motor M Change solenoid SL1 Slide shutter rear Reflectiong plate for size blanking Gear A Gear B Reflectiong plate for full blanking Blank shutter solenoid SL3 Pre exposure lamp Open close shutter Blanking shutter home position sensor PS3 Slide shutter f...

Page 95: ...ut the Leading Trailing Edges and between Copies The blank shutter solenoid drive signal BSSSLD turns on or off under the control of the microprocessor Q301 on the DC controller The leading trailing edge and the area between copies are blacked whited out by opening the open close shutter in this way Figure 4 117 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON...

Page 96: ...ng Roller Cleaning Operation The primary charging roller cleaning solenoid SL4 on signal PCLSLD is generated under the control of the microprocessor Q301 on the DC controller PCB In response to the signal the cleaning pad is butted against the roller for 2 sec during which time the cleaning roller makes about 4 rotations Figure 4 118 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN ...

Page 97: ...sion of toner to the roller under the following condition during post rotation LSTR after as many as 50 copies or more have been made cumulative Figure 4 119 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 21 Transfer roller releasing solenoid Photosensitive drum Transfer roller Fulcrum engaging releasing ...

Page 98: ...blade is used to stir the toner inside the toner container and at the same time to supply toner to the developing chamber The waste toner collected by the cleaning blade is forwarded by the waste toner feed blade for collection inside the waste toner assembly Figure 4 201 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 22 M1...

Page 99: ...d by the toner level sensor and the data is sent to the antenna sensor circuit The antenna sensor circuit receives a reference signal from the composite power supply circuit the reference signal is an AC bias with a specific AC bias that has gone through attenuation In the antenna circuit the signal coming from the toner level sensor and the reference signal are compared to find out the level of t...

Page 100: ...oller cirucit to make checks only during copying operating AC bias ON if it detects the toner out signal 0 each lasting 0 25 sec or more for a total time equivalent of three copies the Cartridge indicator is flashed on the display of the control panel e Torque Limiter If an excessive load is imposed on the photosensitive drum because of excessive amounts of waste toner or some other reason while t...

Page 101: ... bias is being applied the application voltage is taken in from the development DC bias voltage detection circuit in the form of the BIASS signal analog signal to exert control so that the output voltage is maintained at a constant level The main transformer T101 is driven by the drive signal MPWM from the microprocessor Q512 In addition to the foregoing functions the main transformer T101 is also...

Page 102: ...llowing factors setting of the Copy Density key output of the AE sensor position of the Copy Density Correction knob VR302 The copier controls so that the voltage of the DC component of the development bias varies between 80 and 560 V in actual terms by varying the output of the BPWM signal To ompensate increases in the light potential VL caused by deterioration of the photosensitive drum the copi...

Page 103: ...on the reflected light over the area shown in Figure 4 207 is measured by the AE sensor photodiode and the measurements are sent to the DC controller PCB In response the DC controller PCB computes the optimum value of the development DC bias for copying operation and generates the result to the microprocessor on the composite power supply Figure 4 206 shows the changes in the DC component of the d...

Page 104: ... accessory the density is checked for each original COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 28 27 mm approx Center reference 50 mm approx A 14 mm approx 27 mm approx Note A indiates the position of the AE sensor ...

Page 105: ...ent during AE mode Copy density development bias slope adjustment during AE mode Adjustments Remarks The density is adjusted auto matically so that the copy density will be 5 when mak ing copies of the Test Chart q If the setting is decreased in service mode AE copies will be darker w If the setting is increased in service mode AE copies will be lighter default 0 settings 26 to 26 q If the setting...

Page 106: ...5 A washer is used for some mounting screws for grounding wire varistor to ensure correct electrical continuity be sure to use the washer when assembling the part 6 As a rule do not operate the machine while any of its parts are removed 7 When sliding out the duplexing unit or the fixing assembly be sure to turn off the front door switch or the power switch A Illumination Assembly 1 Detaching the ...

Page 107: ... connector y 8 Pull the fluorescent lamp u slowly toward the front to detach Figure 4 303 Caution Do not touch the fluorescent lamp Use lint free paper COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 31 r e u t y ...

Page 108: ...ach the heater to the lamp as follows Figure 4 305 Caution Do not touch the fluorescent lamp Use lint free paper Do not block the light emitting portion by the fluorescent lamp heater COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 32 i Light emitting portion Heater 1 5mm 60mm 60mm ...

Page 109: ...t free paper Be sure to adjust the gain and AE whenever you have replaced the fluorescent lamp See p 10 10 Make sure that the cut off of the fluorescent heater is correctly oriented in relation to the intensity adjustment sensor Figure 4 307 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 33 Light emitting portion Adjustment...

Page 110: ... the inside cover 4 Detach the exhaust fan and Drum cartridge See Detaching the Exhaust Fan 5 Disconnect the connector q J315 on the DC controller PCB and remove the two screws w Figure 4 308 6 Push up the blank exposure assembly e lightly upward and pull it out toward the bottom front Figure 4 309 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMA...

Page 111: ...ing the Blank Exposure Assembly on p 4 34 2 Remove the four screws q and disconnect the connector w Figure 4 310 3 Disconnect the connector e Figure 4 311 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 35 q q w e ...

Page 112: ...upper plate and disconnect the connector q See 3 Detaching the Blank Exposure Assembly on p 4 34 3 Remove the E ring w and detach the link arm e from the blank shutter 4 Remove the two screws r and pull out the blank shutter solenoid Figure 4 313 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 36 r t e r q w ...

Page 113: ...shutter when the solenoid is moved in the direction of activation When taking measurements do not push down the shutter After adjustments make sure that the solenoid moves smoothly Figure 4 314a Figure 4 314b COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 37 A ...

Page 114: ...hat the standards are met q clockwise turn moves the margin to the front w counterclockwise turn moves the margin to the rear e a full turn moves about 1 mm Figure 4 316 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 38 Put the spring on the outside Slide shutter rear Wind 3 5 items Slide shutter front q ...

Page 115: ...r q toward the front and turn it clockwise Figure 4 317 3 Open the copier s top unit 4 Turn the knob w counterclockwise to detach 5 Pull out the drum unit e toward the front Figure 4 318 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 39 ...

Page 116: ...roller and the transfer guide will interfere with each other and rotation of the registration roller during WMUP will damage the roller 2 Cleaning If the surface of the photosensitive drum has become soiled clean it with a flannel cloth coated with toner do not use paper lint free or otherwise Caution Do not dry wipe or use solvent Do not use drum cleaning powder COPYRIGHT 1997 CANON INC CANON NP6...

Page 117: ...of the drum unit in the direction of the arrow Figure 4 319 3 Detach the primary corona assembly unit w together with the holder while rotating it in the direction of the arrow Figure 4 320 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 41 q q w ...

Page 118: ...Dry wipe only Do not use water alcohol or solvent Be sure to use strokes in one direction only Figure 4 321 3 Clean the primary charging roller t with lint free paper y while rotating it Caution Dry wipe only Do not use water alcohol or solvent Be sure to use strokes in one direction only Figure 4 322 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 ...

Page 119: ...to the direction of arrow B so that r in Figure 4 323 is 4 0 0 2 mm when the joint q is butted against point a of the solenoid support w Figure 4 323 Caution You must make the adjustment whenever you have replaced the solenoid COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 43 a 4 0 0 2 B w q e ...

Page 120: ...Do not touch the surface of the roller Do not soil the surface of the roller 2 Attaching the Drum Heater 1 Detach the front cover 2 Open the copier s top body by operating the copier open close lever 3 Detach the inside cover 4 Remove the three fixing screws w and detach the harness cover q Figure 4 325 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER ...

Page 121: ...r 8 Fix the harness with two SK binders t front rear in place and insert it into the transfer guide Figure 4 326 Caution When fixing the harness in place make sure that the cap portions of the terminal are alternated as shown in Figure 4 327 if bundled in parallel the harness will come into contact with the transfer roller Figure 4 327 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED I...

Page 122: ...on Make sure that the spring at the rear is securely in the groove when attaching the transfer guide to the copier after attaching the drum heater COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 46 ...

Page 123: ...eloping assembly 4 Remove the screw w 5 Pull the developing assembly e slowly to the front Figure 4 329 2 Removing the Blade Assembly 1 Remove the developing assembly from the copier 2 Remove the four screws q and remove the developing cover w Figure 4 330 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 47 1 3 2 w q q ...

Page 124: ...eveloping Cylinder Side Seal 1 Remove the developing assembly from the copier 2 Remove the blade assembly Caution The blade must be installed at high precision Do not remove it in the field If necessary remove it intact on its mounting plate 3 Remove the screw q and remove the front cover w Figure 4 332 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER ...

Page 125: ...r roll case t and roll y Figure 4 333 5 Remove the three E rings u and gear i gear o and gear 0 Figure 4 334 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 49 y e e t r u u 0 i o ...

Page 126: ...ve the butting roll 2 and roll case 3 Figure 4 335 7 Remove the developing cylinder 4 Figure 4 336 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 50 1 2 3 4 ...

Page 127: ...al and the Blade Assembly 1 Clean the area where the side seal will be installed with alcohol 2 Attach the side seal as indicated in Figure 4 339 Figure 4 339 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 51 5 5 ...

Page 128: ...the upper side and secure it with the screw Figure 4 340 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 IMAGE FORMATION SYSTEM 4 52 Some spacers are glued top and bottom in reverse however regardless of the spacer positions attach the unit by pushing it all the way against the Upper side ...

Page 129: ... 5 9 V IDENTIFYING THE CASSETTE SIZE 5 10 VI IDENTIFYING JAMS 5 12 A Pre Registration Delay Jam 5 12 B Pre Registration Timing Jam 5 13 C Pre Registration Stationary Jam 5 13 D Separation Delay Jam 5 14 E Separation Stationary Jam 5 14 F Delivery Delay Jam 5 15 G Delivery Stationary Jam 5 15 VII DISASSEMBLY AND ASSEMBLY 5 16 A Pick Up Assembly 5 16 B Multifeeder Assembly 5 23 C Registration Roller...

Page 130: ...registration roller so that the leading edge of the image on photosensitive drum matches with the leading edge of the copy paper the paper is then sent to the copy tray through the transfer separation feeding fixing and delivery assemblies COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 1 Registration roller Multifeeder pick...

Page 131: ...G SYSTEM 5 2 Sensor No PS4 PS5 PS6 PS7 PS8 PS1CU PS2CU PS3CU PS4CU Name Multifeeder paper sensor Cassette paper sensor Registration sensor Separation sensor Delivery sensor Cassette 2 vertical path sensor Accessory Cassette 2 paper sensor Accessory Cassette 3 vertical path sensor Accessory Cassette 3 paper sensor Accessory ...

Page 132: ...e copy tray As many as three photointerrupters PS6 PS7 PS8 are provided along the paper path turning on the Jam indicator on the control panel when jams are identified in terms of whether paper has reached or has moved past the respective sensors within a specific period of time The presence absence of paper inside the cassette or the multifeeder is monitored by separate photointerpreters PS4 PS5 ...

Page 133: ...B Sequence of Operations pick up feeding assembly A4 2 copies Figure 5 202 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 4 ...

Page 134: ...e of paper Figure 5 301 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 5 M1cu Cassette 2 Cassette 3 PS2cu PS4cu PS1cu CL1cu CL2cu PS3cu Pick up roller Casette 2 size detection Casette 3 size detection Pick up roller Vertical path roller Pick up clutch Cassette drive PCB Cassette 2 size detection signal Cassette 3 size detec...

Page 135: ...RINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 6 INTR SCFW SCRV SCFW SCRV LSTR STBY Copy Start key ON Cassette feeding unit Copier Cassette 2 pick up clutch CL1cu Cassette 2 vertical path sensor PS1cu Cassette feeding unit motor M1cu Registration clutch CL1 Registration sensor PS6 Main motor M1 ...

Page 136: ...work of the pick up roller and the separation pad a single sheet of copy paper is forwarded to the registration roller The series of operations is executed for each pick up operation Figure 5 401 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 7 M1 PS5 PS6 Multifeeder pick up clutch Multifeeder paper sensor Paper sensor leve...

Page 137: ...he period of time during which the registration sensor PS6 remains on The data collected in such a way is used to control the length of blank exposure activation of the registration roller and high voltage Reference The maximum length of paper is 432 mm LDG size paper longer than this will lead to a jam Figure 5 402 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU J...

Page 138: ... INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 9 INTR SCFW SCRV SCFW SCRV LSTR Copy Start key ON Multifeeder pick up solenoid SL2 Multifeeder pick up clutch CL3 Pre registration sensor PS6 Registration clutch CL2 Scanner motor M2 ...

Page 139: ...er is not blocking light size may be stored must be within the range specified in mm for details see p 10 43 Table 5 501 right 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 Left 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 10 Arrangement Cas...

Page 140: ... by the paper size lever and the size of copy paper Reference Paper size configurations differ from area to area however you may still make sure of a specific copy control sequence for the size of paper that does not fall under the respective category the size nevertheless will not be indicated on the display For instance you may use LTR paper for a metric model The paper size lever in this case w...

Page 141: ...n When the copier identifies a jam it immediately stops the ongoing copying operation and cuts off the power to the fixing heater H1 at the same time it flashes the Jam indicator on the control panel and flashes also any of the location indicator The activation of the jam detection mechanism will not increment the copy count for the copy which has jammed A Pre Registration Delay Jam Copy paper doe...

Page 142: ...p clutch CL2 has turned on because of feeding problems Figure 5 603 Pre Registration Stationary Jam Sequence COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 13 Main motor M1 Jam check STBY INTR SCRV SCFW SCFW Pck up clutch CL2 Registration sensor PS6 0 8 sec Copy Start key ON Jam indicator flashing Normal Error 0 8 sec Main ...

Page 143: ...f time after the registration clutch CL1 has gone on because of feeding problems Figure 5 605 Separation Stationary Jam Sequence COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 14 Main motor M1 Jam check SCRV SCRV SCFW SCFW Registration clutch CL1 Separation sensor PS7 Jam indicator flashing Normal 1 1 sec Error 1 1 sec Main...

Page 144: ... because of feeding problems Figure 5 607 Delivery Stationary Jam Sequence COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 15 Jam check SCRV LSTR SCFW Delivery sensor PS8 Normal Error Main motor M1 Jam indicator 1 1 Main motor M1 Jam check SCRV SCRV LSTR SCFW SCFW Separation sensor PS7 Delivery sensor PS8 Jam indicator flash...

Page 145: ...lectricity be sure to use the washer when assembling the part 5 A washer is used for some mounting screws for grounding wire varistor to ensure correct electrical continuity be sure to use the washer when assembling the part 6 As a rule do not operate the machine while any of its parts are removed 7 When sliding out the duplexing unit or the fixing assembly be sure to turn off the front door switc...

Page 146: ... access to the pick up roller and the bushing at the rear in this condition 5 Push in the pick up roller e from the direction of step 4 toward the rear and remove the bushing r while lowering it to the lower left Figure 5 703 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 17 ...

Page 147: ...re to remove the pick up unit toward the left of the copier Figure 5 705 Note When removing the pick up roller Assembly separate the right side black bushing from the key COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 18 ...

Page 148: ...k up roller unit See 1 Detaching the Pick Up Roller Unit on p 5 14 2 Remove the E ring q and the E ring w then pull out the pick up roller e together with the collar Caution Take care not to drop the pin found toward the rear Figure 5 707 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 19 w e q ...

Page 149: ... is toward the rear Figure 5 708 4 Detaching the Pick Up Clutch 1 Detach the main motor unit See 1 Detaching the Main Motor Unit on p 7 11 2 Remove the two screws q and detach the connector mount w Figure 5 709 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 20 q w ...

Page 150: ...k up clutch t Figure 5 710 5 Detaching the Separation Pad 1 Open the right door 2 Remove the two screws q and detach the separation cover w Figure 5 711 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 21 ...

Page 151: ...om the Cassette Turn the screw q shown in Figure 5 713 to adjust the position of the cassette hook plate standard 0 1 5 mm clockwise turn moves the paper in the direction of shown in Figure 5 714 counterclockwise turn moves the paper in the direction of shown in Figure 5 714 Figure 5 713 Figure 5 714 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 P...

Page 152: ...embly 1 Open the right door 2 Remove the two screws q and shift the multifeeder assembly w toward the front to detach Figure 5 715 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 23 ...

Page 153: ...e the E ring q and pull out the bushing w 3 Remove the two screws e Figure 5 716 4 Remove the screw r and detach the roller cover t Figure 5 717 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 24 q w e r t ...

Page 154: ...roller unit See 2 Detaching the Multifeeder Pick Up Roller Unit on p 5 22 2 Remove the stop ring q plastic and pull out the pick up roller w together with the collar Caution Take care not to drop the pin found at the rear Figure 5 719 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 25 q w ...

Page 155: ...e rear Figure 5 720 5 Detaching the Separation Pad 1 Open the upper right door 2 Remove the two screws q and detach the separation pad w Caution At this time take care not to lose the spring on the separation pad assembly Figure 5 721 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 26 front of copier 2 1 w q ...

Page 156: ...embly on p 5 21 2 Detach the connector mount 3 Remove the screw q Figure 5 722 4 Remove the screw w and disconnect the connector e then detach the multifeeder drive unit r Figure 5 723 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 27 ...

Page 157: ...tifeeder drive Unit on p 5 25 2 Remove the E rings q w and screws e r t then detach the support mount 3 Detach the multifeeder pick up clutch y Figure 5 724 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 28 ...

Page 158: ...tate the control ring Make adjustments so that the hole in the cam and the hole in the multifeeder drive unit match as shown in Figure 5 725 when the claw is engaged with the solenoid plate then fix in position Figure 5 725 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 29 ...

Page 159: ... q and adjust the position of the tray Figure 5 726 10 Points to Note When Attaching the Multifeeder Assembly Rack Plate Attach the rack plate of the multifeeder to the pulley while both its right and left are fully open COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 30 q ...

Page 160: ...nnector w then detach the registration clutch e Figure 5 727 2 Detaching the Upper Registration Roller 1 Detach the registration clutch See 1 Detaching the Registration Clutch on p 5 29 2 Remove the spring q front and spring w rear Figure 5 728 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 31 ...

Page 161: ...are not to misplace the springs front rear 3 Lift the upper registration roller e to detach Figure 5 730 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 32 ...

Page 162: ... lower right door and remove the two screws q to shift the pick up guide w toward the right side of the copier Figure 5 731 3 Remove the E ring e front and shift the bushing r 4 Detach the registration roller t Figure 5 732 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 33 ...

Page 163: ...ng unit See 8 Detaching the Lower Fixing Unit on p 6 23 2 Remove the three screws q and shift the feeding retention plate w Figure 5 733 3 Disconnect the connector e and shift the feeding retention plate w Figure 5 734 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 34 ...

Page 164: ...inator 6 Detach the feeding spacer t from the hook arrow Figure 5 736 Caution Take care not to touch the transfer roller Do not damage the area where the feeding spacers are in contact COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 5 PICK UP FEEDING SYSTEM 5 35 ...

Page 165: ...k Up Roller Unit p 5 17 2 Detaching the Pick Up Roller and p 5 18 3 Points to Note When Attaching the Pick Up Roller 3 Detaching the Pick Up Clutch 1 Detach the pick up drive unit See p 7 14 1 Detaching the Pick Up Drive Unit 2 Detach the cassette motor See p 7 15 2 Detaching the Cassette Motor 3 Remove the three screws q and detach the bushing w and side plate e then detach the pick up clutch r F...

Page 166: ... Overheating at the End of the Fixing Heater 6 6 E Protection Mechanism 6 6 F Correcting Displacement of the Fixing Film 6 7 II DISASSEMBLY AND ASSEMBLY 6 11 A Fixing Assembly 6 11 B Delivery Assembly 6 27 This chapter explains the principles used to fuse toner images to transfer medium in view of the functions of electrical and mechanical units and in relation to their timing of operation It also...

Page 167: ...f the fixing heater is monitored by a thermistor TH1 and the result is sent to the microprocessor in the DC controller circuit in the form of the fixing heater temperature detection signal TH1 Based on the result TH1 signal the microprocessor on the DC controller varies the fixing heater drive signal HTRD to control the temperature of the fixing heater Further a thermistor TH2 is also provided on ...

Page 168: ...er H1 Fixing heater temperature etection Heater ON detection PCB Fixing heater overheating detection circuit Fixing heater end overheating detection circuit HTNG Micro processor HTRD HTON DC controller PCB Fixing heater driver PCB COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 2 ...

Page 169: ... 2nd to 9th copy 195 C 10th to 20th copy 190 C 21st to 25th copy 185 C 26th to 100th copy 180 C c If the temperature at the time copying is started is less than 120 C or less the temperature is controlled to 225 180 C 215 180 C or 200 180 C selected by service mode See the Service Handbook Control 1 1st to 4th copy 225 C 5th copy 220 C 6th copy 215 C 7th copy 210 C 8th copy 205 C 9th to 20th copy ...

Page 170: ...se the control temperature if a fixing fault occurs or use control 3 to lower the control temperature if offset occurs See the p 10 32 Figure 6 103 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 4 ...

Page 171: ...er PCB can exert proper control over power Caution The resistance of the fixing heater is stored in service mode at the time the copier is shipped out of the factory do not change it unless you have replaced the fixing heater The power of the fixing heater is controlled by a phase power control method The microprocessor controls the output timing of the fixing heater drive signal HTRD so that powe...

Page 172: ... 1 The microprocessor on the DC controller monitors the voltage of the thermistor TH1 TH2 if it detects a high or low temperature error it stops the power to the heater and cuts off all the power At the time E000 thorugh E003 information is stored See p 10 109 2 If the overheating detection circuit identifies that TH1 has registered 260 C or TH2 has registered 270 C for 0 3 sec or more the heater ...

Page 173: ...ou turn on the power by inserting the door switch actuator into the door switch with the top body of the copier open E007 will be detected since the condition prevents the fixing film from turning Figure 6 105 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 7 M1 M4 Fixing film posision signal FFD Main motor drive command MMD Fuser fi...

Page 174: ...film starts to become displaced toward the rear however the on period becomes longer the off period becomes longer if the film starts to be displaced toward the front See Figure 6 107 The DC controller monitors the on and off periods of the sensor and computes the difference to correct the position of the fixing film Figure 6 106 Figure 6 107 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PR...

Page 175: ... film toward the front When the fixing film becomes displaced toward the front on the other hand the tension roller is moved up to move the fixing film toward the rear The fixing film is positioned properly by repeating these operations as necessary If the film has become displaced so much that the mechanism fails to make adequate correction E007 is indicated on the display See p 10 110 Figure 6 1...

Page 176: ...FFCA and FFBC are imposed the motor starts to rotate when pulses are applied to each phase in specific sequence The motor is rotated in reverse by applying these pulses in reverse order Figure 6 109 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 10 Microprocessor Q314 FMD FFA FFA FFB FFB DC controller PCB 24V FFCA FFCB M4 ...

Page 177: ...rounding wire varistor to ensure correct electrical continuity be sure to use the washer when assembling the part 6 As a rule do not operate the machine while any of its parts are removed 7 When sliding out the duplexing unit or the fixing assembly be sure to turn off the front door switch or the power switch A Fixing Assembly 1 Construction1 q Drive roller t Fixing cleaning roller w Cleaning brus...

Page 178: ... s top body 3 Remove the two screws q and detach the fixing assembly cover w Figure 6 202 4 Disconnect the four connectors e and remove the screw r Figure 6 203 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 12 q w e r ...

Page 179: ...e going through the steps make sure that the heater and the heater connector have cooled sufficiently 1 Detach the upper fixing unit See 2 Detaching the Upper Fixing Unit on p 6 12 2 Remove the screw q and detach the heater connector w front Caution If you are removing the screw q you must first make sure that the heater connector has cooled The screw q is a special screw take care not to drop it ...

Page 180: ...205 3 Remove the two E rings e and the two washers r 4 Remove the screw t Figure 6 206 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 14 q w er t ...

Page 181: ...e the screw y and detach the bushing u Figure 6 207 7 Remove the screw i and detach the bushing o then detach the upper fixing top side plate 0 Figure 6 208 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 15 u t y 0 i o ...

Page 182: ...shing rear as shown in Figure 6 209 Figure 6 209 9 Pull out the fixing film 2 toward the front 10 Detach the tension roller 3 Figure 6 210 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 16 y 1 2 3 ...

Page 183: ... screw 4 and detach the fixing film sensor 5 Figure 6 211 12 Remove the E ring 6 Figure 6 212 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 17 4 5 6 ...

Page 184: ...re 6 213 14 Life the delivery side and detach the fixing cleaning brush 0 Figure 6 214 15 Remove the two screws 1 and detach the cover 2 Figure 6 215 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 18 7 8 9 0 2 1 ...

Page 185: ...he screw 5 and detach the cover 6 18 Remove the screw 7 and disconnect the heater connector 8 Caution If you are removing the screw 7 you must first make sure that the heater connector has cooled The screw 7 is a special screw take care not to lose it 19 Remove the C ring 9 and detach the bushing 0 leaving the fixing heater behind Figure 6 217 Caution Do not touch the surface of the heater 4 3 8 9...

Page 186: ...ater Connector When attaching the heater connector to the fixing heater take care not to damage the heater When tightening the screw hold the connector taking care that its top and bottom are free of pressure be careful not to tighten the screw excessively Figure 6 219 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 20 Film edge Scre...

Page 187: ...on the keypad The display indicates 4 6 Press the AE key The copier enters operation check mode and the display indicates 401 7 Press 5 on the keypad The display indicates 405 8 Press the Start key The copier enters fixing film initial rotation mode 405 to return the fixing film to its proper position The fixing film stops automatically as soon as it reaches its proper position The copier indicate...

Page 188: ...ing screw e so that the copy count is 180 or higher and 348 or lower Caution Adjust so that 10 s and 100 s will not change ignore 1 s may change 5 A clockwise turn decreases the reading A counterclockwise turn increases the reading Figure 6 221 16 When the reading in the copy counter is appropriately correct tighten the screw w make sure that the reading is appropriate after tightening the screw 1...

Page 189: ...he screw q and detach the fixing shutter open close block w Figure 6 222 4 Remove the E ring e and detach the lower fixing unit r Figure 6 223 Caution Do not touch the surface of the fixing cleaning roller or the lower fixing roller COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 23 ...

Page 190: ...separation claw unit w Figure 6 224 3 Detach the separation claw e from the separation claw unit Caution Take care not to misplace the spring 4 Detach the lower fixing roller r together with the bushing t Figure 6 225 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 24 e r e ...

Page 191: ...ng faults occur make the following adjustments The nip is correct if as shown below otherwise turn the bolt to make adjustments Figure 6 227 Note a and c represent points 10 mm from both ends of copy paper COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 25 u y c a A4 size Feeding direction b Center of paper b 4 1mm a c 1mm or less ...

Page 192: ...indicates 4 5 Press the AE key The copier enters operation check mode and the display indicates 401 6 Press 6 on the keypad The display indicates 406 7 Press the Start key The above operations cause the multifeeder to pick up paper so that you can take measurements as in Figure 6 227 the paper will then be discharged Reference The copy paper stops while it is half way under the fixing roller and a...

Page 193: ...pen the copier s top body 2 Remove the E ring q 3 Shift the bushing w rear and bushing e front then detach the delivery roller r Figure 6 228 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 27 ...

Page 194: ...COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAR 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 6 FIXING SYSTEM 6 28 ...

Page 195: ...embly 7 11 E Cassette unit 7 14 F DC Controller PCB 7 17 G Composite Power Supply PCB 7 18 H AE Sensor PCB 7 21 I Intensity Sensor PCB 7 21 This chapter shows the copier s external parts and explains the principles used for the copier s various control mechanisms in view of the functions of electrical and mechanical units and in relation to their timing of operation It also shows how these units m...

Page 196: ...CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 1 I POWER SUPPLY A Outline Figure 7 101 ...

Page 197: ...the power switch is pressed for a second time the microprocessor turns off RL501 and the main transformer thereafter it turns off Q503 to turn off RL101 thereby cutting off 5 Vin The condition deprives the DC controller circuit of DC power to compensate for the absence of power a lithium battery BAT301 is provided to back up the data in the RAM Q307 in the DC controller circuit Caution Voltage is ...

Page 198: ...Figure 7 102 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 3 CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS ...

Page 199: ...voltage generated by the microprocessor Q512 on the composite power supply PCB and the control value is greater than the specified value the microprocessor Q512 sends error data to the DC controller PCB which in turn indicates E064 3 Low Voltage Output Data Error If the difference between the setting associated with the low voltage generated by the microprocessor Q512 on the composite power supply...

Page 200: ...p the output When the output is cut out you may reset the output by opening the front door to turn off the door switch correcting the load and turning on the door switch and power switch SW829 once again Caution Be sure to disconnect the connector J4 of the fixing heater before resetting the output Repeated short circuiting and resetting can cause the built in fuse FU101 to blow COPYRIGHT 1997 CAN...

Page 201: ...ic electricity be sure to use the washer when assembling the part 5 A washer is used for some mounting screws for grounding wire varistor to ensure correct electrical continuity be sure to use the washer when assembling the part 6 As a rule do not operate the machine while any of its parts are removed 7 When sliding out the duplexing unit or the fixing assembly be sure to turn off the front door s...

Page 202: ... their respective mounting screws are omitted from the discussion Caution When attaching the rear cover be sure that the harness is housed inside the upper rear cover so that its portion shown in the diagram will not spring out the cover or the harness will not come into contact with the connector plate Figure 7 203 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU J...

Page 203: ... it is firmly in contact with the vertical size plate without a gap to prevent intrusion of foreign matter Figure 7 204 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 8 CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS ...

Page 204: ...e upper rear cover 6 Detach the right cover 7 Detach the left cover 8 Remove the five screws q and detach the inside cover w Figure 7 205 9 Disconnect the two connectors r J309 J310 on the DC controller PCB then detach the control panel t Figure 7 206 Figure 7 207 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 9 CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS ...

Page 205: ... the screw q at the copier s rear and remove the two screws w at the front Figure 7 208 Figure 7 209 5 Pull out the exhaust fan assembly e toward the front while supporting it Figure 7 210 6 Remove the four screws r and detach the exhaust fan t Figure 7 211 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 10 CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS q w r r t...

Page 206: ...Detaching the Main Drive Assembly 1 Open the front door 2 Pull out the drum cartridge 3 Detach the multifeeder unit 4 Detach the rear cover 5 Detach the main motor 6 Remove the clip ring q and disconnect the connector w then detach the registration clutch e Figure 7 213 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 11 CHAPTER 7 EXTERNALS AUXILIARY MECHANI...

Page 207: ...14 8 Detach the belt from the belt tensioner y of the fixing drive assembly Figure 7 215 9 Turn the pulley i clockwise and detach the belt o Figure 7 216 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 12 CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS ...

Page 208: ...ALS AUXILIARY MECHANISMS 10 Remove the E ring 0 and clip ring 1 then detach the bushing 2 In this condition detach the gear and pulley 3 from the main drive assembly Figure 7 217 3 Routing the Drive Belt Route the drive belt attaching them to the pulley and the tensioner as shown in Figure 4 218 Figure 7 218 ...

Page 209: ... rear cover and right cover 2 Remove the screw q Figure 7 219 3 Remove the screw w and detach the harness guide e Figure 7 220 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 14 CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS q w e ...

Page 210: ...221 2 Detaching the Cassette Motor 1 Detach the rear cover 2 Remove the two screws q and disconnect the connector w J114 then detach the motor e Figure 7 222 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 15 CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS y r r r t t e q w q ...

Page 211: ... Disconnect all connectors from the cassette driver PCB q 3 Remove the three screws w and detach the driver PCB q Figure 7 223 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 16 CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS q w ...

Page 212: ...4 2 Points to Note When Replacing the DC Controller PCB When sending the DC controller PCB to the workshop or factory put it in a conducting bag while keeping it intact with the mount Use a conducting bag whose one side is transparent and make sure that the face of the DC controller PCB shows through the transparent side of the bag After replacement perform following see p 7 20 q enter the value r...

Page 213: ...pport plate w 3 Remove the screw e and detach the power cord cover 1 r Figure 7 225 4 Remove the screw t and shift the power cord cover 2 y 5 Disconnect the AC connector u and remove the screw i to detach the grounding wire o Figure 7 226 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 18 CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS ...

Page 214: ...ve the three screws 0 and detach the power cord mount 1 Figure 7 227 7 Disconnect all connectors from the composite power supply PCB 8 Remove the screw 2 and detach the grounding wire 3 then detach the harness guide 4 from the power supply side plate Figure 7 228 9 Remove the screw 5 and detach the composite power supply PCB 6 Figure 7 229 ...

Page 215: ... Composite Power Supply PCB Some capacitors used on the PCB may retain charges even when the copier remains off For this reason you must take care never to short the terminals of the capacitor whenever you have detached the PCB Enter the settings Nos 315 through 318 recorded on the label attached to the composite power supply service part in service mode See p 10 103 ...

Page 216: ... AE I Intensity Sensor PCB 1 Points to Note When Replacing the Intensity Sensor After replacement perform the following see p 10 11 q Adjust the intensity of the scanning lamp and w Adjust AE COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 21 CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS ...

Page 217: ...COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAR 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7 22 CHAPTER 7 EXTERNALS AUXILIARY MECHANISMS ...

Page 218: ... DRUM UNIT 8 14 V INSTALLING THE CONTROL CARD IV N 8 17 VI CASSETTE HEATER KIT 5 INSTALLATION PROCEDURE 8 19 A Unpacking 8 19 B Installation to a Cassette Feeding Module A2 B2 8 20 VII INSTALLING THE REMOTE DIAGNOSTIC DEVICE II 8 26 A Unpacking 8 26 B Installation to the Copier 8 27 This chapter introduces requirements for the site of installation and shows how the copier may be installed using st...

Page 219: ...RH to 80 RH in humidity In particular avoid areas near water faucets boilers humidifiers or refrigerators 3 Avoid areas near sources of fire areas subject to dust or ammonium gas or areas exposed to the direct rays of the sun if necessary provide curtains to shut out the sun 4 The site must be well ventilated 5 Make sure that the floor will remain in contact with the copier s feet and will keep th...

Page 220: ...if the copier is to be placed on it Open the cardboard box and take out all the accessories Remove all tape from the outside of the copier Take out the cassette from the cardboard box and remove the cushions from inside the cassette then slide the cassette into the copier Remove the tape from the scanner fixing found on the outside of the left cover remove the screw and slide the fixing to the rig...

Page 221: ... the protective sheet Open the front cover and push the lever found on the left side up in the direction of the arrow to open the copier s top body Pull up the spacer front and rear 1 pc each of the fixing roller in the direction of the arrow until a click is heard Remove the two pieces of cardboard cushion from the feeding assembly Remarks Step 6 7 8 9 ...

Page 222: ...the knob and remove the dummy drum from the copier Keep the knob for later Remove the screw and remove the developing assembly stopper Remove the developing assembly and check that the developing cylinder is free of scratches or dirt Install the developing assem bly and attach the developing assembly stopper with a screw Engage the developing assembly Close the copier s top unit Remarks Step 10 11...

Page 223: ...embly locking lever Install the drum unit Lock the developing assembly and close the copier s top unit Insert the door switch activator into the door switch and turn on the power Remarks Make sure that the power outlet is the rating 10 Make sure that the Add Paper message flashes Press the keypad and the Clear key to make sure that the copy count indication is correct When turning the toner cartri...

Page 224: ...e Make sure that step 10 has been completed then turn off the power and open the copier s top unit Remove the static eliminator and clean it with the static eliminator brush then set the static eliminator Remarks To enter settings Select No 313 in service mode and enter the setting recorded on the label PRIMARY using the keypad To enter press the key before entering the setting Then press the Star...

Page 225: ...py Start key to make sure that all respective operations are normal Step 13 14 15 16 17 18 19 Work Turn on the power Execute No 412 in service mode Press the service mode swicth SW302 4 on the keypad AE key 1 and 2 on the keypad and Start key in sequence Set the settings for user mode and settings mode in service mode to suit the needs of the user Tailor the cassette to suit the desired size by op...

Page 226: ...rs are free from scratches and deformations Clean the area around the copier Move the machine to its site of installation Check Remarks Make sure there is no abnormal sound Check the copy images for each standard reproduction ratio Make sure that as many copies as specified are made normally If the copy image is faulty perform the Image Adjustment Basic Procedure Make sure that the copying operati...

Page 227: ... primary charging roller releasing spacer Set the drum unit to the copier and fix it in position using the knob used to keep the dummy drum Fill out the label and attach it to the drum unit cover Check Remarks Take care not to damage the surface of the drum and not to touch the primary charging roller Be sure to insert the drum unit straight along the copier s rail Step 1 2 3 4 Releasing spacer Re...

Page 228: ... the cassette size to suit the user s needs 1 Slide the cassette out of the copier 2 Move the length plate inside the cassette to suit the length of the paper size Figure 8 201 3 Move the width plate inside the cassette to suit the width of the paper to be used Figure 8 202 A4R LTR R B5R A4 A5R A5 STMT LTR STMTR A4R LTR R B5R A4 A5R A5 STMT LTR STMTR ...

Page 229: ... size lever will lead to jams or soiling 5 Take out the paper size plates for the cassette and pick out the four plates representing the most frequently used size attach the labels Figure 8 204 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 11 CHAPTER 8 INSTALLATION A5R B5R A4R A B B A A U STMTRLTRR STM LGL LTR 11x17 A4 A3 A4 R A5 R ...

Page 230: ...mind Do not spend more than 5 min when removing jams After detaching the drum unit from the copier during servicing work be sure to protect it in the light blocking sheet that came with the drum or fresh copy paper and place the drum in a dark place Do not touch the photosensitive drum or primary charging roller If you have soiled the surface of the drum inadvertently wipe it using a flannel cloth...

Page 231: ...NSTALLATION Work Move the lens to the Direct position Take out the drum unit Fix the scanner in place Tape the front door and delivery assembly in place Place A3 copy paper on the copyboard glass and tape the copyboard cover in place Checks Put the drum unit in a box for transport Step 1 2 3 4 5 Remarks Direct position refers to the position of the lens after warm up initiated by power on Use the ...

Page 232: ...and the copier s top unit Release the developing assembly and remove the knob to remove the drum unit Unpack the new drum unit and remove the light blocking sheet Remove the primary charging roller releasing spacer Set the drum unit to the copier and attach the knob used to fix the old drum unit Remarks Take care not to damage the surface of the drum and not to touch the primary charging roller St...

Page 233: ...vice mode Press the service mode switch SW302 with a hex key Select 3 of the mode by pressing 3 on the keypad and AE key then select No 3 xx by pressing x and x on the keypad and the start key Turn off the power and open the copier s top unit Replace the static eliminator Turn on the power Remarks To enter settings Select No 313 in service mode and enter the setting recorded on the label PRIMARY u...

Page 234: ... INSTALLATION Work Execute No 412 in service mode Press the service mode swicth SW302 4 on the keypad AE key 1 and 2 on the keypad and Start key in sequence Remove the door switch actua tor and close the front door Remarks The copier automatically sets the APVC value it stops in about 23 sec Step 13 14 ...

Page 235: ...r rear cover 7 Loosen the two screws on the copyboard glass 8 Detach the face plate q from the control card cable inlet When detaching the face plate q detach it in the direction of the arrow using pliers or screwdriver Figure 8 501 9 Fix the Control Card IV N to the copier using a screw w M4 12 at the time be use that the copier s emboss e is fitted in the hole in the Control Card IV N Figure 8 5...

Page 236: ...nector t of the Control Card IV N Figure 8 504 12 Connect the copier s power plug and turn on its power switch to check the operation of the Control Card IV N COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 18 CHAPTER 8 INSTALLATION r t ...

Page 237: ...of the parts shown in Fig 8 601 is missing Figure 8 601 q Cassette Heater 1 t Cord clamp 1 w Mounting plate 1 1 y Binding screw black M4 6 2 e Mounting plate 2 1 u TP screw white M3 6 2 r Relay harness 1 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 19 CHAPTER 8 INSTALLATION ...

Page 238: ...ette feeding unit pedestal 2 Remove the copier s rear cover 3 Install the mounting plate 2 to the cassette heater with two screws black M4 6 Figure 8 602 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 20 CHAPTER 8 INSTALLATION Cassette heater Screw Mounting plate 2 ...

Page 239: ...nit pedestal bottom holder Figure 8 603 5 Open the cover on the front of the cassette feeding unit module and fix the mounting plate 2 in place to the front side plate with two screws white M3 6 Figure 8 604 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 21 CHAPTER 8 INSTALLATION Screws ...

Page 240: ...he side where the harness is bundled with a tie wrap Figure 8 605 8 Install the cord clamp to the hole in the rear side plate of the cassette feeding unit pedestal Cassette Feeding Module A2 Figure 8 606 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 22 CHAPTER 8 INSTALLATION Connector Cord clamp Tie wrap Cord clamp ...

Page 241: ...nector on the relay harness through the copier s bottom plate as shown Figure 8 608 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 23 CHAPTER 8 INSTALLATION Cord clamp Copier s connector Molded member Copier s base plate ...

Page 242: ...late with the cord clamp Cassette Feeding Module A2 Figure 8 610 Caution Make sure that the relay harness is outside the area indicated by dashed lines to prevent it from interfering with the feet of the cassette COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 24 CHAPTER 8 INSTALLATION Relay harness ...

Page 243: ... indicated by dashed lines to prevent it from interfering with the feet of the cassette 12 Install the rear cover of the cassette pedestal and all covers 13 Install the copier s rear cover COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 25 CHAPTER 8 INSTALLATION ...

Page 244: ...witch setting label 1 pcs w Power Supply Unit 1 unit y Grounding wire 1 pc e Screw M4 6 4 pcs u Ferrite core 1 pc r Harness band 2 pcs Not used COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 26 CHAPTER 8 INSTALLATION u q t w e r y Not used Not used ...

Page 245: ...Keep the copier s power cord disconnected during the work 4 Be sure to use the appropriate screws length diameter 5 Make sure the computer in the service station has been properly loaded with the RDD s settings data 1 Remove the two screws w to detach the RDD s top cover q Figure 8 702 2 Connect the Power Supply Unit s connector e to the RDD s connector r as shown Figure 8 703 COPYRIGHT 1997 CANON...

Page 246: ...ig 8 704 4 Connect the cable o on the copier side and the RDD s cable i Note If a conversion connector is found on the cable 1 from the copier remove it Fig 8 705 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 28 CHAPTER 8 INSTALLATION y y t o ...

Page 247: ...he copier s rear cover with four screws y use the screws removed from the copier Modular Jack on the Right Fig 8 707 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 29 CHAPTER 8 INSTALLATION i o y y ...

Page 248: ... RDD s PCB shift bit 7 of the DIP switch 2 3 to ON otherwise shift bit 7 of the DIP switch 2 to OFF Note 1 If the ROM IC6 2 is not mounted you need not mount it 2 If you are mounting or replacing the ROM IC6 2 for upgrading the RDD be sure to shift bit 7 of the DIP switch 2 3 to ON COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 30 CHAPTER 8 INSTALLATION 0 ...

Page 249: ...PYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 31 CHAPTER 8 INSTALLATION 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 3 2 LED1 LED2 LED3 2 1 LED5 LED6 LED4 IC6 SW1 SW4 SW3 6 1 BAT1 CN4 1 2 CN3 CN2 SW2 1 2 3 4 5 6 4 ...

Page 250: ... JAPAN IMPRIME AU JAPON 8 32 CHAPTER 8 INSTALLATION Switch SW3 1 SW3 2 SW3 3 SW3 4 SW3 5 SW3 6 Setting AII OFF ON ON OFF ON OFF Description selects push pulse for RDD circuit confihuration selscts dial pulse for RDD circuit confihuration sets dial pulse speed to 20 PPS sets dial pulse speed to 10 PPS reserved LED1 LED2 LED3 2 1 LED5 LED6 LED4 IC6 SW1 SW4 SW3 6 1 BAT1 CN4 1 2 CN3 CN2 5 SW2 ...

Page 251: ... red comes on Table 8 702 Fig 8 713 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 33 CHAPTER 8 INSTALLATION 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 6 SW2 7 8 bits on SW2 SW2 1 SW2 2 SW2 3 SW2 4 SW2 5 SW2 6 SW2 7 SW2 8 Setting OFF OFF ON ON OFF OFF See step 9 OFF ...

Page 252: ...oes out indicating that the RAM has been reset Table 8 703 Fig 8 714 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 34 CHAPTER 8 INSTALLATION bits on SW2 SW2 1 SW2 2 SW2 3 SW2 4 SW2 5 SW2 6 SW2 7 SW2 8 Setting OFF OFF OFF ON OFF ON See step 9 OFF 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 6 SW2 8 7 ...

Page 253: ... circuit connect the existing telephone or fax machine to the RDD s connector 1 TEL and connect the telephone circuit to the RDD s connector 0 LINE Fig 8 716 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 35 CHAPTER 8 INSTALLATION 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 9 SW2 LED1 LED2 LED3 2 1 LED5 LED6 L...

Page 254: ...puter in the service station Press the push switch 4 7 LED6 3 red should come on it will go out when transmission ends successfully or will start to flash if transmission fails Retransmission is executed in response to a press on the push switch 4 7 while LED6 3 is flashing Transmission is canceled in response to a press on the push switch 1 4 while LED6 3 is flashing Fig 8 718 COPYRIGHT 1997 CANO...

Page 255: ...9 Press the copier COPY START key to make sure that LED3 6 pink flashes each time a copy is delivered Fig 8 720 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 37 CHAPTER 8 INSTALLATION 5 LED1 LED2 LED3 2 1 LED5 LED6 LED4 IC6 SW1 SW4 SW3 6 1 BAT1 CN4 1 2 CN3 CN2 SW2 LED1 LED2 LED3 2 1 LED5 LED6 LED4 IC6 SW1 SW4 SW3 6 1 BAT1 CN4 1 2 CN3 CN2 SW2 6 ...

Page 256: ...ig 8 721 21 Fix the RDD s top cover q in place using two screws w Make sure that the Power Unit s cable is fixed in place on the cable guide inside the RDD and is not trapped by the top cover q COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8 38 CHAPTER 8 INSTALLATION q w w 7 ...

Page 257: ...Cassette Feeding Module B2 Cassette Feeding Module A2 9 3 III PERIODICAL SERVICING 9 4 IV SERVICING CHART 9 5 V NOTES ON DRUM KIT 9 6 This chapter provides tables of periodically replaced parts and consumables durables and scheduled servicing charts COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 258: ...age Plan the replacement to coincide with a scheduled visit A Periodically Replaced Parts Note The above values are estimates only and subject to change based on the future data CHAPTER 9 MAINTENANCE AND SERVICING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 9 1 No 1 Parts name Static eliminator as of JAN 1997 Parts No FG5 2912 Q ty 1 Life copies 60 000 Re...

Page 259: ...p Fixing cleaning roller Transfer roller Upper fixing unit 220 240V Lower fixing roller Lower fixing separation claw Pre exposure lamp Developing assembly Developing cylinder Side seal Developing blade unit No 1 2 3 4 5 6 7 8 9 10 11 12 12 1 12 2 12 4 Parts No FB3 5153 00P FG5 2922 020 FB1 8581 000 FB2 2167 000 FH7 3271 000 FB3 4494 00P FB2 2223 000 FG5 2928 140 FB2 2316 000 FB1 7275 000 FG5 2891 ...

Page 260: ...sed on future data COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 9 3 CHAPTER 9 MAINTENANCE AND SERVICING No 1 2 Parts name Pick up roller Pick up separation pad as of JAN 1997 Parts No FB2 2251 000 FG5 3614 000 Q ty 1 1 Life copies 100 000 100 000 Remarks Actual usage Actual usage ...

Page 261: ...form work according to the number of copies made See p 9 2 Clean the copyboard cover and copyboard glass Make test copies Make sample copies Arrange the sample copies and clean the area around the copier Record the final counter reading Fill out the Servicing Sheet and report to the person in charge Checks Check the general conditions Check the following a image density b white background for soil...

Page 262: ...ly mount Reflecting plate for original exposure Side reflecting plate for original exposure No 1 through No 6 mirrors Lens Dust proofing glass Clearner base Charging roller Charging roller cleaner Static eliminator Developing spacer every 20 000 Unit External Pick up assembly Scanner drive assembly Feeding assembly Optical assembly Drum kit Charging assembly Developing assembly Remarks Use alcohol...

Page 263: ...ial COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 9 6 CHAPTER 9 MAINTENANCE AND SERVICING Parts Lower fixing roller Separation claw lower Fixing inlet guide Delivery guide tray Delivery spacer every 20 000 Unit Fixing assembly Delivery assembly every 60 000 Remarks Use cleaning oil Use solvent ...

Page 264: ...10 63 V TROUBLESHOOTING FEEDING PROBLEMS 10 78 A Jams copy paper 10 78 B Feeding Faults 10 81 VI ARRANGEMENT FUNCTIONS OF THE ELECTRICAL PARTS 10 82 A Sensors 10 82 B Clutches Solenoids and Switches 10 84 C Motors Heaters and Lamps 10 86 D PCBs 10 88 E Cassette Feeding Module A2 10 90 F Variable Resistors VR and check Pins by PCB 10 92 VII SERVICE MODE 10 94 A Outline 10 94 B Using Service Mode 10...

Page 265: ...voltage between J109 1 and J109 2 on the DC controller PCB asks you to connect the meter s positive probe to J109 1 and negative probe to J109 2 Is the power plug connected to the outlet Connect the plug Checks YES NO Remedies NO 1 Step Are the front door and delivery cover closed properly Close the door and cover NO 2 Is the specified voltage present at the power outlet The problem is not the cop...

Page 266: ...COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAR 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 10 TROUBLESHOOTING 10 2 ...

Page 267: ...COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 10 3 I MAINTENANCE AND INSPECTION A Image Adjustment Basic Procedure ...

Page 268: ...B Periodical Servicing 10 4 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 269: ...key 3 Change the value using the keypad The value flashes If the value is negative turns on To enter a negative value press the key then enter the value using the keypad 4 Press the AE key The value flashes as soon as it is entered Press the Start key to start copying operation 5 To change a value continuously repeat steps 1 through 4 6 Press the Clear key to return to selecting items The relation...

Page 270: ...Making Adjustments 1 Activate 3 in service mode and select No 306 using the keypad The copy count indicator flashes No 306 2 Press the Start key 3 Change the value using the keypad The value flashes If the value is negative turns on To enter a negative value press the key then enter the value using the keypad 4 Press the AE key The value flashes as soon as it is entered Press the Start key to star...

Page 271: ...he copy count indicator flashes No 309 2 Press the Start key 3 Change the value using the keypad The value flashes If the value is negative turns on To enter a negative value press the key then enter the value using the keypad 4 Press the AE key The value flashes as soon as it is entered Press the Start key to start copying operation 5 To change a value continuously repeat steps 1 through 2 6 Pres...

Page 272: ...ette hook plate standard 0 1 5 mm clockwise turn paper moves in the direction of shown in Figure 10 205 counterclockwise turn paper moves in the direction of in Figure 10 205 Figure 10 204 Figure 10 205 b Pick Up from the Multifeeder Loosen the screw 1 and move the position of the tray so that it is 0 1 5 mm Figure 10 206 10 8 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 ...

Page 273: ...using the keypad The relationship between the setting and the image position is as follows For each 1 in the setting the margin one side shifts about 0 37 mm range 0 to 15 mm increases the margin decreases the margin Figure 10 207 b Left Right Margin Turn the blank shutter adjustment screw located on the front side plate shown in Figure 10 208 so that the value is as specified clockwise turn moves...

Page 274: ...t exposure value becomes invalid 3 Turn VR301 on the DC controller so that the image is optimum If the image is too light turn the VR slightly clockwise If the image is too dark turn the VR slightly counterclockwise Reference 1 The term optimum image refers to a copy whose gray scale No 8 corresponds to gray scale No 4 through 7 of the Test Sheet without fogging 2 An excessive turn on the VR could...

Page 275: ...nning lamp on check No 408 and AE sensor voltage display No 208 a AE Basic Adjustment No 410 No 408 No 208 No 301 In this adjustment the intensity of the scanning lamp is read by the lamp intensity sensor and the voltage of the AE sensor unit is adjusted by VR 391 on the DC controller After the adjustment execute the lamp intensity automatic adjustment for AE scans 1 Place the Test Sheet NA 3 on t...

Page 276: ...15 Press the AE key the following take place to indicate that the optimum intensity is adjusted automatically The AE indicator stops flashing and remains on The scanner moves to the AE measurement position When the intensity has stabilized the reading taken by the AE sensor is stored in memory The lamp is turned off and the scanner is returned to its original position 16 When the above has ended p...

Page 277: ...er returns to selection mode and indicates 302 As necessary execute No 303 c Copy Density development bias Slope Adjustment for AE Mode No 303 1 If the indication is not in the 300 s activate adjustment mode service mode as in the case of No 301 2 Press 3 on the keypad The copier indicates 303 3 Press the Start key The copier indicates the current setting 4 Change the setting with the keypad and p...

Page 278: ...ade at density 5 q A lower setting in service mode causes the AE copies to be darker w A higher settings in service mode causes the AE copies to be lighter default 0 range 26 to 26 After adjustment with the test sheet NA 3 using AE mode density adjustment should show 5 In non AE mode density 5 must also be apprppriate adjusted with knob VR302 q A higher setting in service mode causes copies of a n...

Page 279: ...able Figure 10 212 10 15 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON Screw Loosen the screw and shift it down Re tighten the screw Attach the mirror positioning tool Set screws Loosen the set screws to enable free rotation Put the steel ball into the hole in the pulley wind the cable nine times toward the inside and four times t...

Page 280: ...Figure 10 213 3 Loosen the set screw on the pulley 4 Set the mirror positioning tool w to the No 1 mirror mount and the No 2 mirror mount both front and rear Figure 10 214 5 Attach the scanner cable fixing to the No 1 mirror mount using two screws e both front and rear Figure 10 215 10 16 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JA...

Page 281: ...ighten the screw w so that the distance across the ends of the cable spring q is 34 1 mm as indicated in Figure 10 216 Figure 10 216 4 Assembling the Mirror Positioning Tool 1 Remove the screw found in position B Figure 10 217 2 Fit the screw removed in step 1 in position A and tighten it slightly 3 Extend the arm accommodated by the main frame unit it butts against the stopper as in Figure 10 218...

Page 282: ...ows Figure 10 219 Caution Do not touch the fluorescent lamp Use lint free paper Do not block the light emitting portion by the fluorescent lamp heater 10 18 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON A A B B Position A Light emitting portion Fluorescent heater 1 5mm 60mm 60mm ...

Page 283: ...r you have replaced the fluorescent lamp See P 10 11 Make sure that the cut off of the fluorescent heater is correctly oriented in relation to the intensity adjustment sensor Figure 10 221 Reference The fluorescent lamp heater will not operate unless the copier s heater switch is turned on 10 19 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIM...

Page 284: ...the direction of b by the arm e when the steel core q of the solenoid is fully pushed in the direction of B i e when the E ring comes into contact with the solenoid Figure 10 222 10 20 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON t q w e r A B a b ...

Page 285: ...ttom A is 9 5 0 5 mm on both sides when the solenoid is moved in the direction of ON try not to force down the shutter After adjustments make sure that the solenoid moves smoothly Figure 10 223a Figure 10 223b 10 21 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON A ...

Page 286: ...ure 10 225 is 5 5 0 2 mm when the joint q is butted against a of the solenoid support plate w Caution Be sure to make the adjustment whenever you have replaced the solenoid Figure 10 225 10 22 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON Attach the spring to the outside of the sides shutter Slide shutter rear Wind 3 5 times Slide...

Page 287: ... cover 2 Open the copier s top body by operating the copier open close lever 3 Remove the two fixing screws w and detach the harness cover q Figure 10 227 4 Detach the transfer roller and the static eliminator 5 Detach the transfer guide 6 Butt the two heaters against the transfer guide as shown in Figure 10 228 and fix the two mounts with two screws e further fix the harness in place using two ha...

Page 288: ... the transfer roller 8 Fix the harness with two SK binder t front rear in place and insert it into the transfer guide Figure 10 229 9 Connect the connector y as shown in Figure 10 230 Figure 10 230 Caution When attaching the transfer guide to the copier after attaching the drum heater make sure that the spring at the rear is firmly in the groove 10 24 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANO...

Page 289: ... toward the rear Figure 10 231 2 Orientation of the Multifeeder Pick Up Roller Attach the multifeeder pick up roller q so that the side with the collar with a cross w is toward the rear Figure 10 232 10 25 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON w q front q w ...

Page 290: ...rol ring Make adjustments so that the hole in the cam and the hole in the multifeeder drive unit match as indicated in Figure 10 233 when the claw of the control ring is engaged with the solenoid then fix in place Figure 10 233 10 26 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 291: ...he Heater Connector When attaching the heater connector to the fixing heater take care not to damage the heater When tightening the screw hold the connector making sure that both its top and bottom are free of pressure do not tighten the screw excessively Figure 10 235 10 27 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON Film end a...

Page 292: ...ps automatically as soon as it reaches its proper position The copier indicates the position of the film in the copy density indicator 9 Open the copier s top body 10 Check that the arrow q is at the middle of the memory as shown in Figure 10 236 Figure 10 236 rear view 11 Close the copier s top body and activate service mode 12 Press 4 on keypad when the display indicates 4 press the AE key 13 Pr...

Page 293: ...ct tighten the screw w make sure that the reading is appropriate after tightening the screw 17 Press the Start key The copier enters check mode 404 and the fixing film rotates idly for about 2 5 min check that the fixing film has not shifted from the adjusted position The copy count indicator indicates or if is indicated repeat steps starting with 13 If is indicated repeat steps 4 through 10 18 At...

Page 294: ...service mode and indicates 1 4 Press 4 on the keypad The copier indicates 4 5 Press the AE key The copier enters operation inspection mode and indicates 401 6 Press 6 on the keypad The copier indicates 406 7 Press the Start key The multifeeder picks up paper and the copier positions the paper as in Figure 10 238 for measurement and dischages it Reference The fixing rollers hold the paper and stop ...

Page 295: ... fixing upper unit to the copier 3 Open the front door and insert the door switch actuator into the door switch 4 Press the service mode switch SW302 with a hex key The copier activates service mode and indicates 1 5 Press 3 on the keypad The copier activates adjustment mode and indicates 3 6 Press the AE key The copier enters adjustment mode and indicates 301 7 Press 0 and 4 on the keypad The cop...

Page 296: ...per Unit Set the initial control temperature value for the 1st to 4th copies under No 508 of service mode for when the temperature of the fixing heater is less than 120 C at time copying is started 1 Take notes of the value recorded on the label on the fixing upper unit heater stay rear Figure 10 240 Heater Stay Side Plate rear 10 32 CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INC CANON NP6218...

Page 297: ...g the fixing upper unit 8 2 When Replacing the Fixing Film 1 Replace the fixing film 2 Replace the copy paper in the cassette with A3 size copy paper 3 Press the service switch SW302 The copier enters service mode and indicates 1 4 Enter 5 using the keypad and press the AE key The display indicates 501 5 Enter 5 using the keypad and press the Start key The display indicates 001 002 or 003 6 Enter ...

Page 298: ... of the temperature reading in the display Press the Start key once again when the reading is 116 118 C Make four copies in A3 15 Check if offset has occurred If offset is noted change the temperature control value of the fixing heater Go to step 16 If offset is not noted go to step 21 16 Press the Clear key and enter 5 using the keypad The display indicates 508 17 Press the AE key and enter 8 usi...

Page 299: ...10 103 Be sure to record any new settings on the service mode label c AE Sensor PCB 1 Adjust AE see p 10 11 Caution Be sure to record all new settings that you have entered d Intensity Sensor PCB 1 Adjust the intensity of the scanner lamp see p 10 10 2 Adjust AE see p 10 11 Caution Be sure to record all new settings that you have entered 2 Clearing the Back Up RAM 1 Open the front door and insert ...

Page 300: ...ntroller 3 Make checks as indicated 1 5V 0 0V Reference All photointerrupters except PS1 PS2 PS3 PS6 and PS9 are connected in the form of a matrix and for this reason may show variations if checked by a meter use service mode for these photointerrupters b Using Service Mode 1 Open the front door and insert a door switch actuator into the door switch 2 Press the service mode switch SW302 with a hex...

Page 301: ...er on the multifeeder tray while in standby Open the right door while in standby and insert paper along the paper guide plate Move the detection lever with a finger while in standby Checks The scanner is at home position The scanner is not at home reposition The light blocking plate is present The light blocking plate is not present The light blocking plate is present The light blocking plate is n...

Page 302: ... the detection lever with a finger while in standby Open the right door while in standby Slide out the cassette while in standby and move the detection lever with a finger Slide out the cassette while in standby and move the detection lever with a finger Slide out the cassette while in standby and move the detection lever with a finger Checks The lever is moved The lever is not moved The light blo...

Page 303: ...ensor C2VPD PS2cu Cassette 2 paper sensor C2PD Q651 2 Cassette 2 size sensor 1 C2SZ 1 probe Service mode J319 A2 No 204 2 b J319 A4 No 204 1 e J319 B1 No 201 1 e Draw out the cassette 2 while in standby and put copy paper over the pick up guide plate Draw out the cassette 2 while in standby Draw out the cassette while in standby and move the detecting lever by a fin ger be sure to set paper select...

Page 304: ... lever by a fin ger be sure to set paper selection to cassette 2 Draw out the cassette while in standby and move the detecting lever by a fin ger be sure to set paper selection to cassette 2 Draw out the cassette while in standby and move the detecting lever by a fin ger be sure to set paper selection to cassette 2 Draw out the cassette 3 while in standby and put copy paper over the pick up guide ...

Page 305: ... cassette while in standby and move the detecting lever by a fin ger be sure to set paper selection to cassette 3 Draw out the cassette while in standby and move the detecting lever by a fin ger be sure to set paper selection to cassette 3 Draw out the cassette while in standby and move the detecting lever by a fin ger be sure to set paper selection to cassette 3 Checks The cassette is drawn out T...

Page 306: ...open closed sensor CRDOP probe Service mode J319 B4 No 202 2 a J319 A6 No 204 2 a Draw out the cassette while in standby and move the detecting lever by a fin ger be sure to set paper selection to cassette 3 Open the right door while in standby Checks The lever is moved When the lever is not moved The lever is moved The lever is not moved Display indication 0 1 0 1 Voltage reading on meter ...

Page 307: ...ll stored settings and returns the default settings 7 Shift the guide on the multifeeder to suit the size to be stored Be sure to hear a click 8 Press the AE key When the setting is stored the indication stops flashing and remains on 9 Press the Reset key The copier de activates service mode Table 10 201 Reference 1 When storing JPC No 9 adjust the guide width to the smallest width 2 At time of sh...

Page 308: ...n the keypad The copier indicates 505 6 Press the Start key The copier indicates the current setting for the universal cassette 7 Select the size to store using the keypad according to Table 10 202 8 Press the AE key to store the new setting 9 Press the Reset key The copier de activates service mode Table 10 202 Size 355 0 x 216 0 340 0 x 220 0 340 0 x 220 0 337 0 x 206 0 330 2 x 215 9 330 0 x 210...

Page 309: ...ollowing heaters may be controlled by the user by changing the respective settings at time of shipment the settings are at OFF this means the copier may remain connected or disconnected at night If the use of any of the heaters proves to be necessary because of unique site conditions the copier should remain powered at night without disconnecting its power plug fluorescent lamp heater accessory le...

Page 310: ...the scanning system glass mirror lens leads to light images b condensation in the charging system leads to electrical leakage c condensation on the pick up feeding guide leads to feeding problems If condensation is noted dry wipe the part or leave the machine alone powered for 60 min COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 10 46 CHAPTER 10 TROUBLESHOO...

Page 311: ...COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 10 47 CHAPTER 10 TROUBLESHOOTING ...

Page 312: ...B SAMPLES OF IMAGE FAULTS not available COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 10 48 CHAPTER 10 TROUBLESHOOTING ...

Page 313: ...er Drum cartridge Checks Perform the Basic Image Adjustment Procedure Is the problem corrected Make copies in AE mode Is the density too low i e is the copy too light Is the developing cylinder coated with a uniform layer of toner Clean the mirror lens and dust proofing glass Is the problem corrected Step 1 2 3 4 Results YES YES NO YES NO Action End Perform AE adjustment Replace the developing ass...

Page 314: ...ding assembly in feeding position and measure the resistance between the lower transfer guide and the base metal of the transfer charging assembly rail Is the resistance 0 Ω Cause Transfer charging roller Copy paper Lower trans fer guide High voltage cord high voltage transformer DC con troller PCB Step 1 2 3 4 5 6 7 8 Results YES NO NO YES YES NO YES NO Action End Go to step 7 Re insert the trans...

Page 315: ...s the reading in service mode 105 primary current 10 µA or less Cause Toner level toner level detection mechanism Composite power supply PCB Drum cartridge Step 9 10 Results YES YES NO Action The level of toner may be too low or the toner level detection mechanism may be faulty advise the user to replace the toner cartridge Replace the composite power supply PCB Replace the toner cartridge Transfe...

Page 316: ... white copies Is the problem corrected Is the transfer changing roller securely inserted Are the position and condition of the pressure spring of the transfer charging roller normal Does the pre exposure lamp turn on during copying operation Is the developing cylinder coated with a uniform layer of toner Cause Scanner Primary charging roller Transfer charg ing assembly Pre exposure lamp Developing...

Page 317: ...ted from the copier GND Turn off the power supply and disconnect J908 Check the continuity with the meter between the developing and copier sides of J908 2 Is the reading for No 105 in service mode primary charging current 10 µA or less Cause Scanner Pre exposure lamp DC controller PCB Developing spacer Developing cylinder Developing cylinder Drum cartridge Composite power supply PCB Step 1 2 3 4 ...

Page 318: ...Fixing assembly Step 1 2 3 4 5 Results YES YES YES YES NO YES Action End End End End Replace the developing assembly Check and clean the fixing assembly Checks Make a copy and turn off the power switch while the paper is in the feeding assembly Are black lines noted on the copy before it moves through the fixing assembly Is the transfer guide soiled in par ticular the upper transfer guide Are scra...

Page 319: ...tic eliminator Is the problem corrected Is the developing cylinder coated with a uniform layer of toner Try fresh copy paper Is the problem corrected Are there scratches around the photosensitive drum Cause Fixing assembly Primary charging roller Transfer charging roller Static eliminator Developing assembly Copy paper Photosensitive drum Light from outside Step 1 2 3 4 5 6 7 8 9 Results NO YES YE...

Page 320: ... Are the position and condition of the transfer charging roller pressure spring normal Try fresh copy Is the problem corrected Is the problem noted at the same location on all copies Cause Toner level Photosensitive drum Primary charging roller Transfer charging roller Copy paper Scanner rail scanner cable Step 1 2 3 4 5 6 7 8 9 10 Results YES YES YES YES YES YES YES NO YES YES Action The toner le...

Page 321: ...the problem noted vertically at intervals of about 1 6 cm Is the fixing pressure roller or the fixing film soiled with toner Cause Transfer charging roller Durm cartridge Drum cleaning assembly drum cartridge Fixing assembly Step 1 2 3 4 5 6 7 Results NO YES YES YES YES YES NO YES NO Action Go to step 7 End End Replace the transfer charging roller 1 Clean the registration roller and transfer guide...

Page 322: ...r Checks Is the original placed correctly Is the copy paper of a type recommended by Canon Has the pick up roller or the separation pad of the cassette which caused the problem reached its average life Does each registration roller rotate normally Adjust the registration leading edge margin No 305 in service mode Is the problem corrected See p 10 5 Cause Original Copy paper Pick up roller separati...

Page 323: ...t 4 2 cm Cause Scanner drive cable Scanner rail Scanner drive system Photosensitive drum Developing gear Drum drive assembly Step 1 2 3 4 5 Results YES YES YES YES YES NO Action 1 Re route the cable 2 If the cable is twisted or frayed replace it Clean the surface of the scanner rail Replace the gear 1 Check the drum drive gear 2 Check the drum end where it comes into contact with the developing sp...

Page 324: ... on the portion photosensitive drum surface where the developing assembly spacer comes into contact Is the development bias applied normally Make reduced copies and check them against copies made in Direct Is the problem noted at different positions Cause Scanning lamp Developing assembly spacer Development bias Scanner Feeding assembly Step 1 2 3 4 5 Results YES YES YES NO YES NO Action Go to ste...

Page 325: ...ion of the transfer roller pressure spring normal Is the drum cartridge securely set Check if the spacer for the developing assembly is in contact with the photosensitive drum under pressure Is the development bias generated normally Is the horizontal reproduction ratio in Direct with on specification Step 1 2 3 4 5 6 7 8 9 10 Results YES YES NO YES NO YES NO NO NO NO YES Action 1 Check the copybo...

Page 326: ...ply PCB Step 1 2 3 4 5 Results NO NO NO YES YES Action Insert the drum cartridge 1 Check if the photosensitive drum rotates smoothly 2 Check the drum drive assembly Re insert the transfer roller Check the transfer charging roller Replace the composite power supply PCB Checks Does the scanning lamp remain on during copying operation Does the pre exposure lamp turn on during copying operation Is the...

Page 327: ... fixing assembly connected properly Let the fixing assembly cool sufficiently and disconnect J47 Is the resistance between J47 1 and 2 on the thermistor side about 1 4 M and resistance between J47 3 and 4 about 3 7 M Is electrical continuity present between J4 1 and 2 Replace the upper fixing unit Is the problem corrected Replace the fixing heater driver PCB Is the problem corrected Cause J47 rela...

Page 328: ...the problem corrected Cause Thermistor Fixing heater driver PCB DC controller PCB Step 1 2 Results YES YES NO Action Replace the fixing upper unit End Replace the DC controller PCB Checks Disconnect the connector J4 of the fixing heater and press the power switch while pressing the service mode switch This clears the E code about 2 sec later the power switch turns off automatically Turn on the pow...

Page 329: ...CB Checks Is the fixing film cut or torn Does the problem occur when the fixing film or the upper fixing unit has been replaced Have as many as 200 000 copies been made Is the tension spring of the fixing film detecting lever normal Does it move smoothly Is the fixing film sensor PS9 normal Replace the fixing film motor M4 Is the problem corrected Step 1 2 3 4 5 6 Results YES YES YES NO NO YES NO ...

Page 330: ...voltage between the following connectors of the motor driver PCB normal J501 1 34 V and J501 2 0 V Replace the main motor unit Is the problem corrected Step 1 2 3 4 5 Results NO NO YES NO NO YES NO Action Go to step 3 Replace the main motor unit M1 Check the contact of the connector J502 on the motor driver PCB and the wiring from J502 to the connector J303 on the DC controller PCB if normal repla...

Page 331: ...the primary charging roller or the contacts Detach the rear cover and check the high voltage cable Is a scratch or crack found in the high voltage cable Step 1 2 3 4 5 Results YES YES YES YES YES Action Check the harness between the DC controller PCB and the composite power supply PCB Go through steps 3 through 6 then replace the composite power supply PCB Replace the transfer corona assembly tran...

Page 332: ...ns fails to move Check the wiring between the connector J307 on the DC controller PCB and the lens home position sensor PS2 if normal replace PS2 End Checks Does the scanning lamp turn on Replace the DC controller PCB Is the problem corrected Cause DC controller Composite power supply PCB Step 1 2 Results NO YES NO Action See The scanning lamp fails to turn on Replace the DC controller PCB Check t...

Page 333: ...ller PCB Step 1 2 Results YES YES NO Action End If the problem occurs frequently advise the user to obtain a frequency stabilizer End Replace the DC controller PCB Checks Turn off and on the power switch Cause DC controller PCB Step 1 Results YES NO Action End Replace the DC controller PCB Checks Turn off and on the power switch Is the problem corrected Replace the DC controller PCB Is the problem...

Page 334: ...itch DS1 and connect the probes of the meter to F1 and F3 or F2 and F5 of the door switch fastons Is the resistance about 0 Ω when the actuator is pressed and Ω when released Is the wiring between the door switch and the composite power supply PCB normal Cause E code E000 E001 E002 E003 E004 Power plug Covers Main power supply Noise filter PCB circuit breaker Noise filter PCB Door switch DS1 AC ha...

Page 335: ...power supply cord mount Turn off the power switch and disconnect all the following connectors Composite Power Supply PCB J206 J210 Set the meter to the 20V DC range and turn on the power switch is the voltage between the following terminals normal Is the fuse of the composite power supply PCB blown Cause AC power supply Wiring DC load Fuse Composite power supply PCB Step 1 2 Results NO YES YES NO ...

Page 336: ...er cable routed correctly Cause Lens motor Blank shutter drive assembly Blank shutter cable Step 1 2 3 Results NO NO NO Action See The lens fails to move Make corrections so that the drive is transmitted Re route the cable Checks Is E010 indicated Re insert the drum cartridge Is the problem corrected Is the belt fro drive routed correctly Cause Drum cartridge Belt Main drive assembly Step 1 2 3 Re...

Page 337: ... setting paper End Advise the user on the correct way to set the cassette Check the wiring from the connector J303 on the DC controller PCB and the pick up clutch if normal replace the clutch Replace the pick up roller or the pick up separation pad End Checks Select the multifeeder and press the copy Start key Does the multifeeder pick up roller rotate Does the paper guide plate spring up when the...

Page 338: ...ath Composite power supply PCB DC controller PCB Scanner motor Step 1 2 3 4 5 Results NO NO NO YES YES Action Re route the cable Check the scanner rail for dirt and foreign matter in addition check for objects that may come into contact with the scanner See DC power supply is absent End End Checks Press the Copy Start key Does the registration roller rotate for about 1 sec immediately after the sc...

Page 339: ... the wiring between the DC controller PCB and the composite power supply PCB if normal replace the composite power supply PCB Checks Turn off the power switch and detach the rear cover Do the change solenoid SL1 turn on at power on Check with the naked eye Are the lens cable pulley and rail normal Is 34 V being generated at the J210 5 on the composite power supply PCB Replace the lens motor Is the...

Page 340: ...ervice mode Does the pre exposure lamp turn on normally Replace the pre exposure lamp Does it turn on normally Cause DC controller PCB Pre exposure lamp DC controller PCB Step 1 2 Results NO YES NO Action Replace the pre exposure lamp End Check the wiring between the pre exposure lamp and the DC controller PCB if normal replace the DC controller PCB Checks Is the cassette set correctly Is the foll...

Page 341: ...ING Checks Identify which sensor has detected the jam in No 107 of service mode jam history Is paper found near the sensor Is the sensor identified in step 1 normal See p 10 36 Cause Paper Sensor DC controller PCB Step 1 2 Results YES NO YES Action Remove the paper Check the lever and the wiring if normal replace the sensor Replace the DC controller PCB ...

Page 342: ...bly e fixing delivery assembly The descriptions that follow therefore are organized according to each of the above locations When a jam occurs try to find out the location and the type of the jam in service mode 1 No 101 Figure 10 501 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 10 78 CHAPTER 10 TROUBLESHOOTING e w q ...

Page 343: ...ng copying operation Is the pick up roller deformed or worn Try manual copying Does the main motor rotate Does the registration roller operate normally Is the registration roller or the vertical path roller deformed or worn Try Canon recommended paper Is the problem corrected Step 1 2 3 4 5 6 7 8 9 10 11 Results NO NO YES YES YES NO YES NO NO YES YES NO Action Go to step 8 Set the cassette correct...

Page 344: ... fixing roller fixing film Paper guide Nip Delivery lever Delivery sensor PS1 Delivery roller drive assembly Leading edge margin Checks Is the separation claw worn or deformed Is the lower fixing roller or the fixing film deformed or worn Is the paper guide soiled with toner Is the lower roller pressure nip within specification Does the delivery detection lever move smoothly Does the delivery sens...

Page 345: ...Checks Turn off the power while copy paper is moving through the feeding assembly At the time is wrinkling noted Or is the paper moving askew Try fresh paper Is the problem corrected Is Canon recommended paper used Is the paper guide soiled with toner or the like Is the lower roller pressure nip within specification Step 1 2 3 4 5 Results YES YES NO YES NO YES Action Check the pick up assembly che...

Page 346: ...10 82 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 10 TROUBLESHOOTING VI ARRANGEMENT FUNCTIONS OF THE ELECTRICAL PARTS A Sensors Figure 10 601 ...

Page 347: ...ence of paper in cassette detects presence absence of paper in multifeeder detects paper in front of registration roller detects paper in separation assembly detects paper in delivery assembly detects belt detects right door open closed cassette size detection 1 cassette size detection 2 cassette size detection 3 cassette size detection 4 detects toner inside developing assembly fixing heater temp...

Page 348: ...B Clutches Solenoids and Switches Figure 10 602 10 84 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 10 TROUBLESHOOTING ...

Page 349: ... SL4 SL5 DS1 SW1 SW2 ZD1 ZD2 CNT1 CNT2 Description registration clutch pick up clutch multifeeder pick up clutch change solenoid multifeeder holding plate solenoid blank shutter primary charging roller cleaning solenoid transfer changing roller releasing solenoid door switch anti condensation switch fluorescent lamp heater switch transfer guide varistor attraction plate varistor total copy counter...

Page 350: ...10 86 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 10 TROUBLESHOOTING C Motors Heaters and Lamps Figure 10 603 ...

Page 351: ...PTER 10 TROUBLESHOOTING Table 10 603 Symbol Name Motor Fan motor Heater Fluorescent lamp Lamp Ref M1 M2 M3 M4 FM1 H1 H2 R1 FL1 LA1 Description main motor scanning motor lens motor fixing belt motor heat exhaust fan fixing heater fluorescent lamp heater lens heater scanning lamp pre exposure lamp M ...

Page 352: ...10 88 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 10 TROUBLESHOOTING D PCBs Figure 10 604 ...

Page 353: ... sensor Intensity sensor Control panel High voltage connector Development bias connector Heater driver Heater on detection Function noise prevention DC power supply high voltage generation sequence control original density detection fluorescent lamp intensity detection control panel keys LEDs charging transfer static eliminating power relay development power relay fixing heater drive fixing heater...

Page 354: ...N NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 10 TROUBLESHOOTING E Cassette Feeding Module A2 Figure 10 605 PS1cu PS3cu PS2cu M1cu CL2cu CL1cu 1 PS4cu Q564 2 Q563 2 Q562 2 Q561 2 PS5cu Q564 3 Q563 3 Q562 3 Q561 3 Hcu ...

Page 355: ...cal path detection cassette 2 paper detection cassette 3 vertical path detection cassette 3 paper detection cassette right door open closed detection cassette 2 paper size detection 1 cassette 2 paper size detection 2 cassette 2 paper size detection 3 cassette 2 paper size detection 4 cassette 3 paper size detection 1 cassette 3 paper size detection 2 cassette 3 paper size detection 3 cassette 3 p...

Page 356: ...struments and must be adjusted with high precision 1 DC controller PCB Figure 10 606 10 92 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 10 TROUBLESHOOTING 3 J311 1 2 J309 20 1 J310 15 11 J303 1 15 J306 6 7 J307 6 10 J308 1 12 J304 1 1 J305 6 1 J314 12 1 J315 7 J316 1 2 J317 1 1 1 J322 J312 8 3 15 J302 1 5 J318 1 1 J356 2 1 J324 4 B10 J319 B1 A1 A10...

Page 357: ...e 10 607 10 93 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 10 TROUBLESHOOTING J212 1 3 J209 J211 1 2 J908 1 3 J202 2 1 J204 3 1 J906 1 2 LED501 1 15 J213 1 2 J210 1 6 J206 1 2 J205 1 5 ...

Page 358: ...ssified into the following six Table 10 701 B Using Service Mode 1 Activating Service Mode 1 Open the front door and insert the door switch actuator If you want to make checks for I O display mode or the like while making copies set the copy mode 2 Press the service mode switch SW302 on the DC controller with hex key The copy count indicator indicates 1 While service mode is activated the copy den...

Page 359: ...ey and then enter the number using the keypad 2 Press the AE key The copier stores the value and flashes it A press on the Start key starts copying operation 3 To change the settings continuously repeat steps 1 and 2 4 A press on the Clear key returns to selecting items 5 Using Operation Inspection Mode 4 1 A press on the Start key executes the selected service mode 2 A press on the Stop key stops...

Page 360: ...OFF LIGHT TYP 7 Recording on the Service Mode Label Figure 10 702 shows the label attached behind the front door At the factory each machine is adjusted and the settings used at the time are recorded on the label You must record new settings if you changed them in the field If you replaced the DC controller be sure to store the settings recorded on the label in service mode In addition if you have...

Page 361: ...utput ROM version number ROM release number Intensity at time of scanning Factory mode Factory mode Factory mode Factory mode Remarks The display indicates the location of the jam on the copy count indicator see below unit ms The actual ON time is the value that is obtained by multiplying the indicated value by 2 56 the copy density indicator indicates the position of the belt unit V unit V The ac...

Page 362: ...a 1 a 2 f 2 b 2 g 2 e 2 c 2 d 1 f 1 g 1 b 1 e 1 d 1 c No 101 Jam Location Indicator In this mode the copy count indicator turn on to indicate the type of jam If both delay and stationary are indicated for the same sensor i e at time of power on or standby the copier has detected copy paper when it was not making copies No 104 Jam History The 100th digit of the copy count indicator indicates how re...

Page 363: ... copy count indicator turns on to indicate the I O of the input port see below When the mode is activated the copy count indicator turns on to indicate the I O of the input port see below When this mode is activated the copy count indicator turns on to indicate the I O of the input port see below When this mode is activated the copy count indicator turns on to indicate the I O of the input port se...

Page 364: ...e mode switch Jumper connector 1 Jumper connector 2 Total counter open circuit Cassette size 1 cassette 1 Cassette size 2 cassette 1 Cassette size 3 cassette 1 Cassette size 4 cassette 1 Cassette 3 vertical path sensor PS3cu Remarks ON connected ON connected ON open ON connected ON light blocking plate present ON light blocking plate present ON light blocking plate present ON light blocking plate ...

Page 365: ...ON light blocking plate present paper absent ON light blocking plate present paper absent ON light blocking plate present paper absent ON light blocking plate present paper present ON light blocking plate present right door closed ON light blocking plate present paper present LED 1 a 1 b 1 c 1 d 1 e 1 f 1 g 2 a 2 b Connector J314 2 J353 6 J307 2 J315 2 J304 12 J324 2 J302 12 J302 14 Description Re...

Page 366: ...tment for AE mode Fixing heater resistance storage Leading edge margin adjustment registration roller ON timing Leading edge non image width adjustment timing at which blank open close shutter for blank exposure is closed Leading edge registration adjust ment for right face in page separa tion registration roller ON timing Leading edge margin adjustment for right face in page separation timing at ...

Page 367: ...rks A higher setting increases the margin on both left and right default 8 unit 0 27 mm A higher setting increases the margin on both left and right default 0 unit 0 27 mm Enter the setting recorded on the label after replacing the drum cartridge Enter the setting recorded on the label after replacing the drum cartridge default 0 unit 16 V Enter the value recorded on the label on the composite pow...

Page 368: ...ick up roller OFF timing Pick up clutch CL2 off timing adjustment Cassette 2 pick up clutch CL1cu off timing adjustment Cassette 3 pick up clutch CL2cu off timing adjustment Scanning lamp intensity adjustment Remarks A higher setting increases the arch default 25 unit 0 27 mm A higher setting increases the arch default 25 unit 0 27 mm A higher setting increases the arch default 25 unit 0 27 mm For...

Page 369: ...film to rotate idly The ON period of the fixing film sensor is indicated by the copy count indicator and the film position is indicated by the copy density indicator Another press on the Start key checks the position of the fixing film automatically Execute the mode when you have replaced the fixing film or the upper fixing unit to return the fixing film to its appropriate position See p 10 28 The...

Page 370: ...N IMPRIME AU JAPON No 410 411 412 450 Description Scanner forward stop Pre exposure lamp on Drum unit installation mode Back up RAM clear Remarks Execute it when installing or replacing the drum unit a press on the Start key will automatically activate APVC measurement mode the mode ends in about 23 sec See p 10 35 ...

Page 371: ...assette paper size Separation static eliminator output voltage switching Fixing forced wait Fixing control temperature switching Remarks See p 10 43 9 steps 0 17 steps 1 default 0 9 steps When 1 is entered on the keypad the notation will be ON activating the auto power off function When 0 is entered on the keypad the notation will be OFF de activating the auto power off function default on The aut...

Page 372: ...ctive service operation To obtain the actual count multiply the indication by 100 Table 10 18 10 108 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 10 TROUBLESHOOTING No 601 602 603 Description Large copy counter Small copy counter Total copy counter drum counter Remarks For North America only indicates the use of the drum unit in terms of copies mad...

Page 373: ...ssed the main thermister TH1 does not reach 60 C for 200 ms Beginning 4 second after the copy START key is pressed the main thermister TH1 does not reach 70 C for 200 ms The detection temperature of the thermistor TH1 exceeds 250 C during copying operation The detection temperature of the sub thermistor TH2 exceeds 260 C during copying operation The detection temperature of the thermistor TH1 TH2 ...

Page 374: ...ts lower than 95 C for 200 ms After the sub thermistor TH2 detection temperature reaches 70 C the sub ther mister detects less than 70 C for 200 ms The fixing heater is identified as being on when the fixing heater drive signal is off HTRD 0 The fixing film sensor output remains 1 or 0 for 1 35 sec or more Reference The fixing film takes about 1 3 sec to make a full rotation The main motor revolut...

Page 375: ...ns home position sensor signal LHP is not generated within a specific period of time after the power switch has been turned on The lens home position signal LHP is generated longer than a specific period of time The blank shutter home position signal BSHP is not generated when the slide shutter is moving The lamp is identified as being on during standby The lamp is identified as being off during c...

Page 376: ...ted remove the cause and clear the back up data as follows 1 Open the front door and insert the door switch actuator 2 Press the power switch while holding down the service mode switch SW302 on the DC controller with a hex key 3 The power should go off in about 2 sec turn on the power Caution Detection of E000 E001 E002 E003 or E004 automatically turns off the copier To check the type of error in ...

Page 377: ...mmunication with copier error belt motor fails to rotate belt motor clock sensor faulty delivery motor fails to rotate delivery motor clock sensor faulty document detection faulty registration sensor faulty document edge sensor faulty Description The data communication is monitored at all times the error is identified if the communication with the copier is absent for 5 sec or more The belt clock ...

Page 378: ... motor fails to rotate The stapler guide bar swing motor fails to rotate The stapler unit swing motor fails to rotate The bin shift motor fails to rotate Bin motor faulty Reed cam drive gear faulty mounting Description An error is detected in the communication between the sorter and the copier The clock signal from the motor is off for 250 msec or more The home position sensor does not turn off af...

Page 379: ...G Note Even in down state the sorter will run a self check and rest if the result is good if you have switched it off and then on without detaching it from the copier Simply turn off the joint sensor MS3 to detach the sorter from the copier you need not disconnect the communication connector When an E code is indicated ...

Page 380: ...10 116 COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAR 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 10 TROUBLESHOOTING ...

Page 381: ...997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON APPENDIX A GENERAL TIMING CHART A 1 B SIGNALS AND ABBREVIATIONS A 2 C GENERAL CIRCUIT DIAGRAM A 3 D SPECIAL TOOLS A 5 E SOLVENTS OILS A 6 ...

Page 382: ...ary charging bias Scanning motor M2 Scanning lamp FL1 Image exposure Transfer cleaning bias Transfer bias Static eliminator bias Developing bias AC Developing bias DC Fixing heater H1 Heat exhaust fan FM1 Environment heater H3 Fluorescent lamp heater H2 Blanking shutter solenoid SL3 Transfer reference bias ATVC Registration sensor PS6 Separation sensor PS7 Delivery sensor PS8 Scanner home position...

Page 383: ... PULSE command FFCA FUSER FILM MOTOR VOLTAGE command A FFCB FUSER FILM MOTOR VOLTAGE command B FFD FIXING FILM POSITION signal FLHT OFF FLUORESCENT LAMP HETER OFF command FL ON FLUORESCENT LAMP ON command FLPRHT FLUORESCENT LAMP PRE HEAT command FLS FLUORESCENT LAMP INTENSITY signal FLTH FLUORESCENT LAMP THERMISTOR signal FLTH ON FLUORESCENT LAMP HETER ON command FMD FUSER FILM MOTOR DRIVE command...

Page 384: ...C GENERAL CIRCUIT DIAGRAM COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON A 3 not available ...

Page 385: ...COPYRIGHT 1997 CANON INC CANON NP6218 REV 0 MAR 1997 PRINTED IN JAPAN IMPRIME AU JAPON A 4 ...

Page 386: ... 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON APPENDIX A 5 No 1 2 3 Tool name Door switch actuator Mirror positioning tool comes in pairs front rear Pulley clip Tool No TKN 0093 000 FY9 3009 040 FY9 3010 000 Shape Point of use Front door Rank A B B Remarks For adjusting the distance between No 1 and No 2 mirrors For fixing the scanning cable in place A A B B ...

Page 387: ...embly Lubrication point friction parts Composition C2 H5 OH CHZ3 2 CHOH CH3 CO C2H5 Methylethyl ketone ISO VG 68 oil ESSO Febis K68 MOBIL Vactraoil No 2 SHELL Tonna oil T68 ISO VG 220 oil ESSO Febis K220 MOBIL Vactraoil No 4 Silicone oil Description Flammable Use in a well ventilated area Avoid breathing concentrated vapor Flammable Use in a well ventilated area and avoid breathing concentrated va...

Page 388: ...pared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPT 1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIV CANON INC Printed in Japan REVISION 0 MAY 1997 31625 5 1 Hakusan 7 chome Toride shi Ibaraki 302 Japan ...

Page 389: ...PRINTED IN JAPAN IMPRIMÉ AU JAPON 0797S0 7 2 This publication is printed on 70 reprocessed paper ...

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