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Summary of Contents for NP-6020

Page 1: ...CE MANUAL for 2201240V REVISION 0 MAY 1993 I Canon FY8 13CT 000 COPYFtIGHT 1993 CANON INC CANON NP6020 REV 0 MAY 1993 PRINTED IN JAPAN Download Free Service Manual and Resetter Printer at http printer1 blogspot com ...

Page 2: ...non s own HQ high quality jumping toner for reproduction of clear characters and photos l The toner is a single component type which provides stable images l In addition a 30mm dia high sensitivity OPC drum is used to enable enhanced image reproduction and a compact copier design 4 Man machine interface l As many as 20 copies A4 landscape may be made per minute The zoom mechanism allows reduction ...

Page 3: ...6 Construction Copying Charging Exposure Copy density adjustment Development Pick up Automatic Manual Transfer Separation Cleaning Fixing Indirect static photocopying Corona Slit moving light source Automatic AE or Manual Dry toner projection 2 cassettes Multifeed about 50 sheets of 80g m2 Corona Curvature and Static eliminator Blade Heat roller 950 W ...

Page 4: ...feed tray Plain paper 64 to 128 g me Tracing paper Colored paper OHP film Postcard Label Tow sided Plain paper 64 to 128 gim2 Colored paper Overlay copy Postcard Cassette Claws Front loading 27 mm deep about 250 sheets of 80 g m Copy tray 99 sheets 80 g m Non image width 2 0 1 5 mm leading edge 2 5 1 5 mm left right Auto clear mechanism Provided 2 min standard Auto shut off mechanism Provided 2 ho...

Page 5: ...D Others Sound power level as prescribed by ISO Consumables Keep in box or pedestal avoid direct sun and keep it under 30 85 I ...

Page 6: ...opies min A3 297x420mm A3 11 A4 21Ox297mm A4 20 IA4R 297x210mm I A4R I 15 DIRECT 84 257x365mm 84 12 85 1e2x257mm 85 21 A5R 21Ox149mm I A5R I 20 I 50 REDUCE II A3 A4R A4R 13 I A4R 3A3 A3 11 ENLARGE II 200 Table l 1 pecificafionsare subjecf lo change without notice ...

Page 7: ...OF PARTS Control panel Power switch Upper cassette Lower cassette Front door Delivery cover Figure l 1 Copyboard glass Multifeeder cover Multifeeder tray Developing assembly release lever Feeder assembly release lever Fixing assembly knob Figure l 2 ...

Page 8: ...Q 0 63 63 Figure 1 3 No 5 mirror No 4 mirror Registration roller Multifeeder tray Vertical feed roller 1 Vertical feed roller 2 Cassette 1 pick up roller Cessette 2 pick up roller Feeder roller Transfer corona unit Static eliminator Photosensitive drum Cassette 1 Q Cassette 2 Feeder unit Ozone filter Exhaust fan Fixing unit Delivery roller CANON NPS020 REV0 MAY 1993PRNTED NJWNN IMFRMEW JUUN I 7 ...

Page 9: ...rned OFF using C15 of service mode CLEARSTOP key STANDBY key POWER switch POWER indicator The indicator remains ON while the power is on Numeric keypad key Press it to check the reproduction ratio on the copy count indicator The display changes to the copy count 2 set after the key is released ZOOM key Press it to select a desired reproduction ratio between 50 and 200 in 1 increments AUTO RATIO ke...

Page 10: ...from automatic exposure control to manual density adjustment at any time from the start of copying to the completion of the final copy However it is not possible to switch from manual density adjustment to automatic C 5 6 87 9 19 11 If the copy is too dark or too faint using AE cancel AE and vary the copy density with the COPY DENSITY lever If the ADD PAPER indicator goes ON during copying the cop...

Page 11: ...er is in the wait mode and select the copy modes then press the COPY START key The COPY START key changes from blinking green to orange to indicate that the auto start mechanism has been activated The copier starts making copies as soon as it enters the standby mode using __ the selected copy modes The auto start mechanism may be canceled by pressing the CLEAR STOP or RESET key G Auto Shut off If ...

Page 12: ...paper jams inside the copier check the paper pick up area separation feeder area fixing copy delivery area and cartridge area and remove all jammed paper 1 Open the front door 2 Remove the copies from the copy tray 3 Operate the release and open the copy delivery assembly 4 Check if there is copy paper jammed in the fixing assembly If there is paper jam in it turn the knob of the fixing rollers co...

Page 13: ...older or no paper is found inside the cassette 1 Push the center of the cassette The cassette springs out automati cally _ Figure l l 2 2 Set copy paper inside the cassette As many as 250 sheets of copy paper 80 g m may be set Figure I 13 3 Hold the center of the cassette and slide it into the cassette holder until it stops 2 Multifeeder The indicator goes ON when the paper on the multifeeder tray...

Page 14: ...e toner cartridge Close the top cover of the developing assembly Put the developing assembly back into the copier Swing the developing assembly release lever clockwise Close the front door 2 CT Unit color developing unit If copy images become faint the color toner has probably run out In this case replace the CT Unit The copy image can sometimes be temporarily restored by agitating the CT Unit in ...

Page 15: ...rona wires 2 Copyboard Glass Clean the copyboard glass with a moist cloth then wipe it dry 3 Copyboard Cover Clean the copyboard cover with a mild detergent solution then wipe it dry 4 Transfer Corona Assembly Remove the transfer corona assembly from the copier then slide the knob wire cleaner at the bottom of the transfer corona assembly back and forth to clean the corona wires Further clean the ...

Page 16: ...2 COPYING PROCESS _ I IMAGE FORMATION PROCESS A Outline _ _ Primary corona assembly _ Developing r Figure 2 1 ...

Page 17: ...ure 2 2 This copier consists of the units shown Step 3 Image exposure in Figure 2 l Step 4 Developing positive plus AC The image forming process is divided Step 5 Transfer negative DC into the right steps shown below Step 6 Separation Step 1 Preexposure Step 7 Fixing Step 2 Primary corona negative DC Step 8 Drum cleaning ...

Page 18: ... The pattern of negative charges cannot be seen by the eye hence it is called an electrostatic latent image Of Time 1 Darkarea Figure 2 4 C Step 1 Pre Exposure Figure 2 5 Before the primary corona step light from the pre exposure lamp is shone onto the surface of the drum pre exposure This process eliminates residual charges and helps to make the density of the copy even D Step 2 Primary Corona Pr...

Page 19: ...e rotating cylinder Figure 2 9 A concentrated magnetic field develops between the magnet and the edge of the _ blade This field attracts the charged developer The developer is held virtually immobile by the magnetic field forming a curtain along the edge of the blade As the cylinder rotates this curtain skims the toner particles on its surface to a thin uniform layer An AC bias plus a negative DC ...

Page 20: ...ck of the copy paper drum by utilizing its stiffness Thin paper attracting the toner from the surface of the however is not stiff and may wrap around drum to the copy paper the drum instead of separating from it To prevent this a positive voltage is applied to the separation static charge eliminator weakening the attraction between the drum and the copy paper This enables the paper to separate eas...

Page 21: ...n of toner For In this step the copy paper is pressed these areas there is no blank exposure for removal of the surface charges between two heated rollers to make the _ toner image permanent To prevent the copy paper from B Ozone Filter wrapping around the roller and toner offsetting adhesion of toner to the roller and transfer of the toner to the next copy the surface of the upper fixing roller i...

Page 22: ...ns I The copier can be divided into four functional sections paper pick up and feed system exposure system image formation system and control system ___ _ _ _ T5a e7GKa ti i sysim system I I 1 Primary coronaA j Cassette 1 I I I I I cassene 2 I Figure 3 l ...

Page 23: ...rols the scanning lamp controls the serial communication with the ADF reads analog signals PROM 2318 contains seauence oroorams EEPROM d315 stores data that can be modified in the service mode replaces conventional variable resistors and switches 3 OPERATIONSAND TIMING Microprocessor 2305 slave controls the document size identifica tion controls the serial communication with the sorter controls th...

Page 24: ...aper sensor Pre registration paper sensor Multifeeder paper sensor AE sensor Black toner level sensor Control panel Thermistor 1 Microprocessor Q305 slave Loads I Scanner motor J Lamp regulator Scanning larrp r l I 1 1 I I I I I_ Microprocessor I I Sorter controller PCB I I I I Deck controller PCB I Sensors Switches I _ Microprocessor ADF controller PCB Figure 3 2 ...

Page 25: ... POP1 3 1 Control panel a when papet is we Qi I light blocking plate is at 31 when paper is over Q2 l light blocking plate is at Q2 when scanner is at home position l light blocking plate is at 03 when lens is at home positlon l light blocking plate is at 04 when pap is over Cl5 o light blocking plale is not at Q5 when paper IS in upper casselte l light blocking plate is at 06 when paper is in low...

Page 26: ...3 J311 2 I ucszo I 4 3 UCSZl I I 5 I 0 4 ucszz I I 6 5 I o UCSZB I I 2 1 I oscillation __ e J signal CSTZ SW2 r________ J32 3 J311 7 I 1 1 o LCSZO I I 4 8 I 0 LCSZl I I 5 9 I 0 LCSZZ I I 6 10 I o LCSZ3 I I 1 2 6 I _ oscillation _____ J signal when black toner in black developing assembly is below specific level 0 when color developing assembly is set l The voltage lowers as the fixing heater tempe...

Page 27: ...0 deg 0 starts 1st docomenl identification when copyboard cover is moved down to about 5 deg 0 starts 2nd document identification about lsec thereafter Document size identiiication 0 J38 1 J305 7 24V 10 24V 2 8 I DSLDO output when o LED goes ON when document is present 0 output when 0 LED goes ON when document is present 0 APS 1 Figure 3 5 ...

Page 28: ...Controller Outputs l 3 DCcontrolier PC6 ___ ___ DSW SW2 SW1 MMD when l main motor ON 4 KD when 1 Fixing roller heater Thermo switch fixing roller healer ON AC driver OFF See page 3 24 Scanner motor jq page3 1 1 I L___________I AC driver DC paver supply PCB Figure 3 6 ...

Page 29: ... 3 OPERATIONS AND TMING 2 DC Controller Outputs 2 3 Cassette 1 Pick up clutch solenoid DCcontmller PCB Lens solenoid MuWeeder solenoid LNsD when 0 SL2 ON 24V J312 11 i when 0 SL3ON ...

Page 30: ...ner cooling fan when 0 FM1 ON Exhaust fan I J323 1 I 24V when O FM2 ON I Pm exposure lamps LA2 _________ _____ ________ J 3 J304 I I 2 6 24V I I I I I I I I I 1 1 5 _ I I PEXP I when 0 Pm exposure lamps ON 1LA731 LA739 I ____________ _____ __I H V T I See page 3 25 i______ __ Figure 3 8 ...

Page 31: ...the COPY developer or 145 C for START key is lighting the CT Unit about 75 green seconds at an ambient temperature of 20 C NMUPR Warm Until the fixing roller Keeps fixing roller After the WMUPR Jp Rotation temperature reaches temperature uniform period ends the 175 C to 180 C for the READY WAIT black developer or Stabilizes drum indicator changes 155 to 160 for the sensitivity to prepare from oran...

Page 32: ...ated l Travel distance reflected optical image and copy paper is changes with copy is transmitted to the fed to transfer area paper size photosensitive drum A PAPER FEED through mirrors and signal is generated tc lens array feed the next sheet of copy paper SCRV Scanner qeverse While the scanner is Scanner is moved moving in reverse back to the Home The speed of the position to prepare for reverse...

Page 33: ... B Lens Drive System 1 Outline The lens is moved by the scanner motor M2 Normally the coupling gear is in its upper position and connects the scanner motor to the scanner drive capstan To move the lens the lens solenoid SL2 goes ON causing the coupling gear to disengage from the scanner capstan gear and engage with the lens capstan gear The lens is a floating element type In operation the relative...

Page 34: ...I 3 OPERATIONSAND TIMING I Scanner drive capstar Coupling gear Solenoid ON Lens drive cable Enlargement direction DC controller PCB Figure 3 11 Y ...

Page 35: ...MENT direction Blanking by CASSETTE SIZE REDUCTION direction Blanking by Selected REPRODUCTION RATIO Figure 3 12 When the casette size is changed or when the copier is in the ZOOM mode the lens first returns to the home position before moving to the position that corresponds to the cassette size and the reproduction ratio This operation is executed also when the _ ZOOM mode is switched to the DIRE...

Page 36: ...to produce the required reproduction ratio The reverse speed is fixed regardless of the reproduction ratio 2 5 times the forward speed for DIRECT copying The distance that the scanner moves varies to suit the size of copy paper and the reproduction ratio The control panel displays E202 in response to an error in the scanner motor M2 or the scanner home position sensor Q3 Mirror 1 mount Scanner hom...

Page 37: ... Signal Scanner sensor name Forward Reverse Meaning tinner home SCHP Grid bias ON losition sensor Q3 L After 0 1 seconds scanner stops I advancing Table 3 2 3 Basic Scanner Operation POWER switch ON COPY START key ON Figure 3 14 3 16 CCWRlGHT 1093CM3N NC ...

Page 38: ...n the following signals generated by the microprocessor on the DC controller l scanner motor drive commandMD A scanner forward command SCFW scanner speed control command SCCLK 1 A J109 1 A 2 p M2 Scanner trotor B 3 B 1 I Forward SCMD SCFW 0 0 I Reverse 0 I 1 I 1 Braking 1 0 1 l 1 1 Still 1 1 1 If 1 1 and 0 are reversed from previous states 1 or 0 is maintained Table 3 3 The motor driver circuit op...

Page 39: ...al I The distance traveled by the scanner from the leading edge of the original is determined by the reproduction ratio and the copy paper size just as for a normal copy II This is roughly the same as I If the forward distance traveled by the scanner is greater than 210 mm the DC controller will judge that 210 mm is the leading edge of the original If the distance that the scanner moves forward is...

Page 40: ...lowered to about 20 deg SW4 ON and about 1 set second after the over has been lowered to about 5 deg SW5 ON The DC controller recognized the presence of a document if the two measurements are identical conversely it recognizes the absence of a document if the measurements are different 1 DC conboller PCB DC controller PCB I The thickness of the arrows represents the degree of the level Figure 3 17...

Page 41: ...Copyboard cowr Copyboard cover moved up moved down v 77 20 50 w v 1 I I I Ddcument identification circuit LED I Figure 3 18 Document Identification Timing ...

Page 42: ...onstant varying A varying varying constant no change to output of document identification circuit recognizes presence of document varying change to output of document identification circuit recognizes absence of document Table 3 4 Phototransistor LED I Document identification signal 1 DSZl t Document identification signal 0 DSZO I V A4 I A4R A3 5fl ib Ii Document dentification circull 0 Document i...

Page 43: ...orona current and grid bias voltage control system Controlling developing bias Document density measurement system Developing assembly Drum cleaner Blanking I R A I R R I I I 4 __ o Scanning lamp r ___ _ p L DC controller PCB 8 I 1 When shorted signal sent to indicate black developing assembly DC BIAS control command DCBC I HVT It 1 I I 747 Figure 3 20 ...

Page 44: ...n f Image Formation System Black Developing Assembly 2 Copies COPY START key Developing bias AC When CT unit is used Figure 3 21 When a color developing CT unit is used the AC component of the bias operates when the main motor Ml is operating ...

Page 45: ...is switched between when the black developing assembly is used and when the __ CT unit is used When the CT unit is used the LIGHT INTENSITY CONTROL command m goes 1 to raise the lamp voltage by about 3 5 V higher than when the black developing assembly is used During AE exposure however the voltage 70 V applied to the scanning lamp remains the same The NP6020 adjusts the copy density using its dev...

Page 46: ...witched by the GRID ON signal GRDON 2 a b 3 Switching Primary Transfer Corona Current ON OFF When HVTON 1 1 Dlfferentlal amplifier goes OFF Lgo s OF Variable ulse width oscillator LHfh voltage transformer goes 0 F When HVTON 0 1 Differential amplifier goes ON Variable pulse width oscillator goes ON L High voltage transformer goes ON Maintaining Primary Transfer Corona Current Constant If the prima...

Page 47: ...llows a Switching AC component of the developing bias ON OFF b Regulating voltage of the DC component of the developing bias The copy density can be controlled by varying the voltage of the developing bias to suit the following variables a Settings of COPY DENSITY lever and recalibration dial b AE sensor output c Type of developing assembly When there is a black developing assembly in the copier J...

Page 48: ...ing DC bias The differential amplifier of Figure 3 25 operates when DCBC is 16V or below The range of DCBC analog is 6 to 16V as set by the copy density cursor or the AE system 1 Drfferentral amplifier goes ON 1 Vanable pulse width oscillator goes ON LDC high voltage transformer goes ON The DC bias is applied to the developing cylinder The copy density knob changes the DC component of the developi...

Page 49: ...the DC bias are determined by 1 the setting of the COPY DENSITY lever and COPY DENSITY knob 2 the AE sensor output and 3 the type of developing assembly installed The DC bias used at times other than during scanning depends on the type of developing assembly installed Black developing assembly Approx 320V CT unit Approx 220V ...

Page 50: ...ght is small the output voltage will be large The DC controller reads the output at a certain time after the zero cross signal ZXDP is received from the lamp regulator The data representing the adjusted AE 2 Operation The scanner moves forward approxi mately 70 mm past the leading edge of the original and stops momentarily The scanning lamp goes ON for approximately one second the image density is...

Page 51: ...sembly release lever 2 Remaining Toner Sensor The black developing assembly has a piezoelectric type sensor TSl which senses if the toner remaining in the hopper of the developing assembly is above or below the required level When the amount of toner in the _ hopper is sufficient the sensor output is 1 When it is below the specified level the output is 0 The DC controller makes checks for 30 secon...

Page 52: ...directed to the photosensitive drum by way of the reflecting plate to prevent adhesion of toner the blank exposure shutter is moved to open the exposure slit making use of the movement of the lens 2 a Movement of the Blank Exposure Mechanism When the copier is switched ON the lens first moves in the direction of enlargement and then returns to the home position Next the lens moves in the direction...

Page 53: ...shutter in position cut offs are provided for each cassette size DIRECT and ENLARGE copies are made with the mechanism in this position Figure 3 32 c When the REDUCE mode is selected the lens first returns to the home position and then moves to a position that corresponds to the selected reduction ratio At the time the blank exposure shutter is moved over a distance corresponding to the selected r...

Page 54: ... toner image on the photosensitive drum It then passes through the transfer separation feed fixing and delivery stages to the copy tray The copy paper is sensed by paper sensors Q2 Q5 If it does not reach or pass the sensors within the specified period the DC controller PCB judges that a jam has occurred and causes the JAM indicator on the control panel to flash Cassette paper sensors Q6 Q7 senses...

Page 55: ... 3 OPERATIONSAND TIMING I DC controller PCB Cassette 1 YI I I n I Figure 3 35 3 34 CCWRIGHT 993 CbMJN NC ...

Page 56: ...3 OPERATIONS AND TIMING 2 Pick up and Feeder Operation I I I Figure 3 36 ...

Page 57: ...r switches CSTI through CST4 provided in each cassette holder Based onthe combinations of the switches which have been actuated the micro __ processor recognizes the presence absence of a cassette as shown in Table 3 5 and at the same time determines where to reverse the scanner and how to control the blank shutter unit mm Table 3 5 0 SW is OFF 1 SW is ON ...

Page 58: ...er stops At the same time the multifeeder solenoid SL3 goes ON to transmit the drive of the main motor Ml to the cam mechanism thereby lowering the multi feeder holding tray to prevent dirt on the next copy paper in duplex The multifeeder solenoid SL3 goes OFF as soon as the first copy paper moves past the pre registration paper moves past the preregistration paper sensor Q2 at the time the multif...

Page 59: ... 3 OPERATIONSAND TIMING P up ifeeder solenoid SL3 Holding plate _ Multifeeder solenoid SL3 ON j Figure 3 38 the holding plate Figure 3 39 _ COPY START ke Figure 3 40 I 3 38 ...

Page 60: ...r 2 copies for long paper a Table 3 6 and 4 copies for short paper b Table 3 6 For Black Developing Assembly If the copy is narrow c Table 3 6 the control temperature is 175 C If the copy is wide d Table 3 6 the control temperature is switched from 175 C to 165 C For CT Unit If the copy is narrow c Table 3 6 the control temperature is 155 C If the copy is wide d Table 3 6 the control temperature i...

Page 61: ...en copy paper passes through The mechanism is driven by the oil application solenoid SL5 SL5 goes ON 1 set after the registration roller goes ON it I then goes OFF as soon as the main motor Ml goes OFF thereby bringing the oil application roller into contact with the upper fixing roller DC Controller Pa Oil applicalion solenoid J3lC 3 OILSL Micro processor slave __ J318 2 THl Delivery roller T Upp...

Page 62: ...3 Operation of Fixing Assembly Temperature Control System Power switch 165 C 175 C COPY START key 160 C I I When black developing assembly used _ I 150 C l i Ji I I I I I I I Figure 3 42 ...

Page 63: ...t the copier The microprocessor identifies a jam in any of the following four cases Also the microprocessor judges that there is a jam if I one of the sensors detects paper when the power is switched ON 1 Pick up Assembly Delay Jam If the copy paper does not reach the paper sensor of the pick up assembly within a specified period after paper pick up starts the microprocessor will judge that a pick...

Page 64: ...f the PAPER SELECT JAM indicator will go ON JAM indicator flashes Figure 3 45 delivery assembly stationary jam A4 size 3 Delivery Assembly Delay Jam If the copy does not reach the delivery assembly paper sensor within the specified period after the registration roller clutch CLl has operated the microprocessor will judge that a delivery assembly delay jam has occurred and immediately stop the oper...

Page 65: ...ersion from 24 VDC The DC DC converter generates the reset signal RESET after power on and until the 5VDC supply stabilizes to reset the micro processor thereby preventing malfunction of the micro processor 3 AC Driver Circuit The DC power supply AC driver PCB has an AC driver circuit and based on the signals from the DC controller PCB controls the SSRs and relays on the DC power supply AC driver ...

Page 66: ...3 OPERATIONS AND TIMING B IAC load 4FW3 FW ix Switching I regulator 5 I I 24V I DC I I 24V ADF i Sorter I C OFF 3ESEl 3 AC dker DC powerswly P 3 ___ indicates AC line Figure 3 47 I ...

Page 67: ...umeric keypad on the control panel For example the display indicates ED3 in response to a press on 3 Press the SORT GROUP key Operate as follows as necessary A press on the SORT GROUP key executes the selected mode a second press stops the execution Mode No CO I through CUB and E IS Change the setting using the numeric keypad and press the SORT GROUP key the setting will be stored in EEPROM Mode N...

Page 68: ... r I r Leading edge registration A higher setting delays the I II adjustment registration roller registration roller ON timing ON timing adjustment 32 unit 0 25 mm 0 to 63 r r Leading edge non image A higher setting increases the L LI 1 width adjustment grid bias 32 leading edge non image width switch timing adjustment unit 0 25 mm 0 to 63 r ro Degree of arching multifeeder A higher setting delays...

Page 69: ...age in page separation grid bias 32 leading edge non image width unit 0 25 mm switch timing adjustment 0 to 63 c 3 7 Automatic paper selection Selects Deselects the APS APS mode setting 1 mode at time of power on 1 APS ON 0 APS OFF Oor 1 r rcy Auto shut off mode setting Selects Deselects the Auto hUrr 1 shut off mode 1 Auto shut off ON 0 Auto shut off OFF Oor 1 r rca The output voltage of About 6 ...

Page 70: ... 1 V r Cassette size 2 h I r I Cassette size 1 The size of the cassette is indicated in code in response to the output of the activated _ cassette switch see Table 3 7 c Id LED ON check on control 1 panel c 1 J c AE mode setting 1 Selects Deselects the AE mode at time of power on 1 AEON 0 AE OFF 0 or 1 c r s For factory adjustment Do not change the setting 0 i e keep it to 0 0 to 5 r 0 EEPROM rese...

Page 71: ...de 0 1 2 3 4 5 6 7 8 11 Code Cassette size Cassette size No cassette 9 85 l1O u3 11 A4 12 B5 R 13 B4 14 A4 R 15 A3 16 A5R Ui u2 Letter STMT R Legal Letter R 11x17 Multifeed i Table3 7 Cassette Size Codes ...

Page 72: ... the white strip the leading edge of the copy will be reproduced blank if the leading edge non image width is outside the standards adjust the timing at which the grid bias goes from OFF to ON in the service mode tU3 Suriace of copyboard glass Approx 1Omm Figure 3 49 The standard image leading edge non reproduced area on a DIRECT copy of a test sheet is 2 0 f 1 5 mm I Figure 3 49 I A higher settin...

Page 73: ...Press the SORT GROUP key on the control panel The scanner will move forward to the AE measuring position then the scanning lamp will go ON Adjust VR301 on the DC controller so that 22 appears on the COPY COUNT RATIO indicator Document densitv Test sheet Sheet of newspaper Figure 3 50 7 Press the SORT GROUP key The scanning lamp will go OFF and the scanner will return to the HOME The copier will p ...

Page 74: ...he scanner is not at the HOME position SCHP 0 when the COPY START key is pressed If the scanner does not return to the HOME position SCHP remains 0 within 15 seconds A4 size after it starts to reverse 2 If the scanner is in the HOME position SCHP 1 when the COPY START key is pressed If the scanner does not leave the HOME position SCHP remains 1 within 1 5 second after it staris to advance If the s...

Page 75: ...ideration is made to prevent the user from resetting the copier when the fixing assembly has a serious fault open thermistor or others that can damage the assembly Rest the copier as follows if EOOO or EOOl is indicated DetachtheVR cover Press the service switch SW300 on the DC controller Check that P and OFF alternate on the control panel COPY COUNT RATIO indicator Switch the copier OFF I _ ...

Page 76: ... that can be detached by mere removal of the fixing screws are omitted from the discussions Note I I Make sure t t the copi doors are closed before detaching the copyboard glass Use alcohol when cleaning the glass do not use solvent or the white paint along thelright edge of the glass m y melt 1 Detaching the Inside Cover 1 Remove the two screws that hold the front cover bands in place 2 Remove th...

Page 77: ...opy board glass and rear cover Remove the two screws 0 Disengage the hook 0 Detach the upper rear cover as if to lift it Figure 4 l 05 B 1 1 2 Control Panel Detaching the control panel Detach the inside cover Remove the five screws 0 and lift the control panel toward the front to detach Figure 4 106 3 Lift the control panel to the front and turn it over Note s _ Do not force the control pan or the...

Page 78: ...er case as if to lift it from the bottom D Fans 1 Outline The NP6020 is equipped with two fans to circulate the air inside the machine L thereby preventing the machine from overheating Each fan serves the following function _ Scanner cooling fan FMl cools the scan ner feeder fan air to the 3 4 Exhaust fan FM2 discharges outside 5 Flgure 4 108 Figure 4 109 Cut off the harness band as necessary Disc...

Page 79: ...he two screws from the DC controller PCB then shift the DC controller PCB Remove the two screws from the rear of the exhaust fan 1 5 6 Figure 4 111 rear view Detach the ozone filter and the inside cover then release the feeder assembly Hold the exhaust fan assembly on its bottom and remove the two screws 0 then pull the assembly to the front Figure 4 112 ...

Page 80: ...4 MECHANICAL SYSTEM W fr II DRIVE SYSTEM A Lens Drive Assembly The unit is adjusted at the factory with high precision using special tools Do not remove parts or loosen screws other than those discussed ...

Page 81: ...o screws that hold the pulley mount in place see Figure 4 202 Figure 4 202 5 Detach the cable cable mount Routing the Lens Cable Remove the two screws that hold the lens pulley fixing plate in place and detach the lens pulley see Figure 4 200 Wind the lens cable around the lens pulley as shown in Figure 4 200 then fix it using two screws Shift the pulley mount to the position marked with a scriber...

Page 82: ...f the mount and loosen screw B 1 PC which hold the mount in place Loosen screw A 1 PC and detach the scanner cable 2 1 2 3 Figure 4 203 Scanner Drive Assembly Attaching the Scanner Cable Route the scanner cable as shown in Figure 4 203 Position the fixing plate where a mark has been put using screw A Tighten screw B ...

Page 83: ...t on which lines have been drawn call the copy obtained this way sheet A Place a blank sheet of paper on the copyboard and feed the sheet on which lines were drawn in the manual mode call the delivered sheet sheet B Sheet B will show contraction by heat Put the left lines on sheet A and sheet B together and adjust the position of the No 1 mirror mount so that x and y in Figure 4 205 are identical ...

Page 84: ...4 208 Mirrorcleanmgtool Vo 5 mirror 3 Push the mirror cleaning tool against the No 5 mirror as shown in Figure 4 209 and clean the lens by sliding it back and forth No 4mirror 6 1 2 Figure 4 208 7 Mirror cleaning tool Figure 4 209 Cleaning the No 6 Mirror Detach the drum cartridge developing assembly and dustproof glass Put the mirror cleaning tool against the mirror as shown in Figure 4 210 and c...

Page 85: ...the belt by selecting the mounting hole of the main motor so that when the center of the timing belt is pushed down with a force of 5009 the distance between the two runs of the belt is between 20 mm and 25 mm Figure 4 211 Remove the four screws 01 and detach the main motor as if to lift it toward the front Main motor mounting holes Tension dweases Tension increases 20 to 25 mm Figure 4 213 To adj...

Page 86: ...the solenoid unii 0 Figure 4 300 4 Detach the control ring from the pick up roller shaft Figure 4 301 5 3 7 Detach the pick up roller bushing found at the rear Figure 4 302 Detach the cassette Detach the lower left cover and the right cover detach the cbver 2 screws as if to lift it This applies only when you are detaching the lower pick up roller shaft Figure 4 303 ...

Page 87: ...o detach the cassette support 11 Detach the pick up roller bushing found at the front __ __ Figure 4 306 12 Shift the Dick uo roller shaft 0 to the Figure 4 304 Remove the screw and move the sensor mount to the edge to facilitate work This applies only if you are detaching the lower pick up roller shaft rear and beta the pick up rojer shaft from the front Figure 4 307 Figure 4 305 ...

Page 88: ...ioning the Pick Up Roller Attach the pick up roller to the pick up shaft as shown in Figure 4 311 make sure that the pick up roller is fitted into the mounting hole front rear Pick up shaft Mounting hole inches 0 I 1 01 D DIIQDP I Mounting hole metric Lfetr c configurafiorl only 5 Figure 4 311 Detaching the Multifeeder Roller Detach the right door see p 4 2 Disengage the four hooks 0 and detach th...

Page 89: ...the pad spring support assembly found at the bottom of the right door unit 90 degrees 5 Pinch the hooks of the two bushings _ using pliers and detach the multifeeder roller 0 Figure 4 313 4 Detach the pad unit 0 Figure 4 314 Figure 4 315 ...

Page 90: ...ar Detach the inside cover and remove the E ring 0 then detach the bushing I Detach the grounding wire 1 screw 0 Figure 4 317 6 Hold the side of the feeder assembly and pull it out toward the front slowly as if to lift it 2 1 2 Figure 4 318 Feeder Belt Detach the feeder assembly Remove the two screws 0 and detach the rail cover found at the front Figure 4 319 ...

Page 91: ...rona assembly rail in place 6 Detach the feeder belt Q Figure 4 320 Figure 4 323 Remove the three screws 0 and detach the terminal holder found at the rear Flgure 4 321 Remove the two screws Q found at the rear and detach the corona assembly rail 0 Figure 4 322 ...

Page 92: ...0 Figure 4 400 Push the lamp terminal plate rear into the direction of the arrow and detach the scanning lamp 0 Figure 4 401 2 Detaching the Thermal Fuse 1 Detach the control panel and the copyboard glass 2 Hold the rear of the No 1 mirror mount 0 and move it to the right until it is positioned as shown in Figure 4 402 3 Remove the two screws 0 and detach the thermal fuse 0 Figure 4 402 ...

Page 93: ... out taking care not to damage the PCB Detaching the Blank Assembly Detach the copyboard glass lens cover rear cover and drum unit then detach the developing assembly Disconnect the connector J731 from the pre exposure PCB and the connector J30 from the blank solenoid Figure 4 403 3 Hold the blank assembly on its bottom and remove the four screws 0 then I pull out the pre exposure unit to the fron...

Page 94: ...the front carefully I ITh e 6hoiosen itive dru is susceptible to I ght xplosurktceveri room light dan lead j to ite spots or bta lines on the cop es 11131 1 o _ 3 A As a rule do not switch the copier ON with the drum unit detached 2 Cleaning If the photosensitive drum is soiled clean it using a flannel cloth coated with toner do not use paper lint free or otherwise Note x I I I Do not L I sblvleni...

Page 95: ...Corona Assembly 1 Detach the drum unit 2 Disengage the hook 0 and pull out the primary corona assemblv from the drum unit Figure 4 501 b Transfer Corona Assembly Gut Wire _ and Static Eliminator 1 Detach the transfer corona assembly from the copier 2 Remove the two screws 0 and detach the static eliminator taking care so that the gut wire will not come off Figure 4 502 __ 7 3 Detach the static eli...

Page 96: ...m in diameter 4 Cut the twisted end of the corona wire to about 1 mm or less using a nipper 5 Hook the loop of the corona wire as shown in Figure 4 505 and lead the wire along the V groove of the height adjusting roll Hook the corona wire tension spring on the corona wire and twist the spring three to four times as shown Primary corona assembly Transfer corona assembly Figure 4 505 6 Cut the exces...

Page 97: ...developing assembly and take the assembly out of the copier 3 Detaching the Blade Developing Cylinder and Side Seal 1 Detach the developing assembly from the copier 2 Remove the two screws 0 and detach the developing assembly upper cover 0 3 4 Figure 4 602 Place a newspaper on the floor and pour out the toner from the developing assembly Remove the two screws 0 and detach the blade mount together ...

Page 98: ...nd detach the developing cylinder holder J t ball bearing and developing Figure 4 605 7 Remove the two E rings 0 and remove the two gears 0 Figure 4 606 8 Remove the two screws 0 and detach the developing cylinder holder rear ball bearing 0 and developing roll I Figure 4 607 9 Detach the developing cylinder and side seal ...

Page 99: ...the round hole of the developing assembly housing I I I Figure 4 606 Figure 4 609 3 Attach all parts that have been detached except the blade Make sure that the gear is assembled with the longer tooth in the groove Figure 4 610 4 Force the blade mount against the developing assembly in the direction of the arrow and tighten the two screws _ Figure 4 611 5 Loosen the four screws that hold the blade...

Page 100: ...er P l guide Oil appliialion roller Figure 4 700 2 Detaching the Fixing Aisembly 1 Remove the screw 0 and detach the fixing assembly knob 0 Figure 4 701 2 Remove the three screws 0 and detach the VR cover andyhe left cover 0 Figure 4 702 3 Disconnect the three connectors Figure 4 703 ...

Page 101: ...er and Lower Fixing Roller 1 Detach the fixing assembly from the copier 2 Hold the grip of the oil application roller 0 and pull to the front while lifting to remove the roller Figure 4 705 3 Pull out faston A 0 and remove the two screws 0 the heater mount plate front can be detached in this condition Figure 4 706 ...

Page 102: ...t the heater mount plate rear 0 and the heater carefully Figure 4 707 6 Remove the screw 0 and detach the thermistor 0 7 Figure 4 709 Detach the hook assembly 0 and slide the thermoswitch mount to the rear to detach 5 While pulling the hook assembly to the front detach the thermistor cover by sliding it to the right r Figure 4 700 Figure 4 710 ...

Page 103: ...0 Push the pressure spring of the lower fixing roller down disengage and remove the insulating bush and bushing I 9 Remove the C ring 0 and detach the gear I Figure 4 712 front r Figure 4 713 11 Detach the upper fixing roller 12 Detach the lower fixing roller Figure 4 714 ...

Page 104: ... Wrap the roller with copy paper to prevent soiling or scarnng the surface of the roller Make sure that the end with the longer cut off is to ward the rear L 4 a Figure 4 715 Dimension Measure after the upper and lower roller have become heated 1 b 1 4 5 i0 5mm I Table 4 700 a Measuring the Nip Width If the roller is not heated wait for 15 minutes after the WAIT indicator has changed to green then...

Page 105: ...contact is not even inake sure that th thermistor spring is noi 3 i deformed 3 3 I Figure 4 716 7 Attaching the Thermoswitch Check that the sensor face of the _ thermal switch is evenly in contact with the surface of the upper fixing roller Make sure that the hook of the thermal switch holder is securely engaged with the fixing assembly upper plate Thermal switchholder Fixingassembly upperplate I ...

Page 106: ...fixihg emt y mount using a scriber 3 I j lo adjust the position of the paper guide place ths fixing assembly on a desk d move the paper guide so that the position is aq shown in Figure 4 719 el 3 I Figure 4 719 9 Detaching the Upper Separation Claw 1 Open the delivery assembly 2 Mark the position of the upper separation claw retainer using a scriber 3 Remove the three mounting screws 0 and remove ...

Page 107: ... lower separation guide plate to remove Figure 4 721 Figure 4 723 b Make sure that the upper separation claw assembly is fully toward the rear If a scratch is noted on the upper fixing roller move the upper separation claw assembly about 4 mm toward the front 3 12 Remove the spring and remove the lower separation claw Mounting the Oil Application Solenoid Screw the oil application solenoid in plac...

Page 108: ... boilersand refrigerators b Avoid locations near open fire or subject to dust or ammonia fumes and direct rays of the sun Provide curtains over the windows if necessary c Choose a well ventilated place o e 1 I The level of ozone generated b the copier is not likely harm the health of those around it The odor hbwever may prove to be unpleasant to sotie i vidual s i d Make sure all feet of the copie...

Page 109: ...ensation in the copier any machines for that matter is to leave it alone until it warms to room temperature at least one hour A Unpacking Step Work 1 Open the coardboard packing case of the copier and take out the box of accessories 2 Cut open the widest side of the packing case avoiding the corner containing the metal staplara Remarks 3 Open up the side of the packing case completely and slide ou...

Page 110: ...5 INSTALLATION ...

Page 111: ...Keep the knob for use later ...

Page 112: ...k in performing the following work Step 1 2 Work Take out the drum unit from the box and remove the light blocking sheet Remarks Drum unit Take care not to damage the drum Set the drum unit in the copier and fix it in place using the knob that held the dummy drum Slide the drum unit straight along the rails into the copier Move the grip to clean the corona wire of the drum unit two to three times ...

Page 113: ...pt the COPY START key on the control panel and check that each operation is correct 5 Set the copy tray on the copier 6 Open the copyboard cover and remove the paper and the protection seal from the document size plate 7 Record the reading of the copy counter 8 Make a copy after the COPY START Check the following key has gone green No abnormal sound is heard and Wait for ten seconds or more after ...

Page 114: ...boss found on the left side of the front 5 Hold the toner cartridge and pull on the seal to the front until it stops 6 Tap lightlb on the top of the toner cartridge until all toner has fallen into the developing assembly 7 Remove the toner cartridge and keep it in an empty box 8 Close the developing assembly lid and slide the assembly inside until it stops 9 Turn the developing assembly lever cloc...

Page 115: ...and fill out the Service Sheet When all above work is finished install the options and the document holder n Points to Note for Photosensitive Drum After Installation The photosensitive drum is susceptible to light and if exposed to light can cause white spots or black lines on the copy image take note of the following Do not touch the drum if its surface is soiled wipe off the dirt using a flanne...

Page 116: ...esired paper size note the index on the bottom and see Table 5 l l For the foilowing use two rear stop lates s note the index on the bottom of the cassette A R LGL ARG R lt 17 LTR R FLS G R FOLIO G LGL I AUS FL SLV ARG LGL E OFC I o t S 3 I COPY paper Size A3 297mmx420mm A3 11 7k16 5 11x17 279 4mmx431 6mm 11 x17 il X17 A4 21Ommx297mm A4 6 3wl 7 Letter 216mmxx279mm LTR 6 5 11 0 Government Letter 20...

Page 117: ...r size plate in place Slide the paper size plate along the index on the bottom of the cassette to suit the desired paper Pap size plate Figure 5 6 Place about 100 sheets of paper fresh out of package of the desired size in the cassette and butt them against the front of the cassette Keep the side top plate between the stack of sheets and size plate as shown and screw the size plate using a screw m...

Page 118: ...ALLATION 10 Set the cassette size tab Tab A4 R 0 0 A3 0 d 0 u3 q A5 R 0 0 u2 0 0 LTR Cl 0 0 STMT R LGL LTR R 11 xl7 0 tab present U1 Korean R U2 Others U3 Korean Argentine Letter Government Letter Figure 5 8 ...

Page 119: ...Face Face Inside plate pl te d P te c plate b ylate a dllY i I II I Figure 5 9 12 Attach the size label on the cassette if the label is not available write the size on a blank strip of paper A4 A3 04 11xl 7 LTR I blue A4R BSR LTR R LGL B5 lI yellow IA5WSTMT I white I Table 5 3 I ARGENTINE LTR GOVERNMENT LTR KOREAN II ARGENTINE LGL GOVERNMENT LGL ARGENTINE LTR R GOVERNMENT LTR R FOOLSCAP FOLIO AUST...

Page 120: ... the rubber stoppers are correctly attached further check that the sprin at the rear is correctly set on the fixing ehind the inside plate Inside Dlate Springfixing Figure 5 l 3 3 Removing the Pick up Roller If the cassette is sized to GOVERNMENT LTR KOREAN or KOREAN R remove the pick up rollers as shown below metric rollers GOVERNMENT LTR and KOREAN Figure 5 14 KOREAN R Figure 5 l 5 ...

Page 121: ...yellow tab straight out l_ rIl Tab yellow Figure 5 l 7 4 5 6 Put the CT unit back into the storage case and roll it about ten times in the direction of the arrows Figure 5 l 8 Shake it in the direction of the arrows about ten times _ Figure 5 l 9 Set the CT unit in the copier once again and make test copies in the DIRECT mode repeat step 4 if the image is uneven _ Set the CT unit in the copier and...

Page 122: ...rks 1 Remove the drum unit Put the drum unit in a box for transport 2 Fix the scanner and lens in place 3 Tape the corona assemblies and feeder assembly release lever in place against vibration 4 Tape the front door and delivery assembly 5 Place a sheet of A3 or 1l x17 paper on the copyboard glass and tape the copyboard cover Table 5 4 ...

Page 123: ...5 21 5 6 Remove the protection sheet from the indicator unit of Control Card V Place the clear sheet over the hole of the indicator unit Figure 5 22 7 Fix Control Card V on the control panel using four mounting screws I Slide a card into Control Card V and fix Control Card V where the card can be slid in and out easily Figure 5 23 Make sure that the connector for the printer is found at the center...

Page 124: ...he 4P connector of the control panel on the copier side Figure 5 26 11 12 13 14 15 Mount the control panel on the copier Remove the protection sheet from the control panel guide plate of Control Card V Attach the control panel guide plate of Control Card V on the control panel of the copier Figure 5 27 Turn the copier ON and check the operation of Control Card V Attach the inside right cover ...

Page 125: ...NG THE DOCUMENT _ HOLDER You may choose to attach the document holder on the side of the left cover 1 Fit the mounting screws in the holes shown and attach the document holder see Figure 5 30 Figure 5 30 5 18 WPYRlOHT 1883CAWN NC ...

Page 126: ......

Page 127: ... 000 assembly 2 Paper pick up roller pick FAO 0241 OOP 12 90 000 up assembly 3 Multi feeder roller 4 Pad multi feeder 5 Scanner drive cable FCl 0741 OOP 1 90 000 Must be at the FCl 0736 OOP 1 90 000 replaced same time FA5 2073 000 1 120 000 6 Scanning lamp scanner FH7 3114 000 1 120 000 7 Preexposure lamp FG2 4048 OOP 1 180 000 8 Upper fixing roller fixing FA6 5361 000 1 180 000 assembly 9 Upper s...

Page 128: ...rm periodic servicing after every 15 000 copies as a general rule ii Before making a service call check the service log and take alopg any replacement parts that ati likely to be needed Standard 2 0 1 5mm Standard 10 0 2 0mm DIRECT front side n claws upper and appropriate to the number of ...

Page 129: ...EWlUNG IV PERIODICSERVICINGSCHEDULE Bc not m sdmts or ts Mw thm thoiae _ A Clean 0 Replace X Lubricate Cl Adjust Q Check mirrors 5 and 6 l Items to be cleaned every 15 000 copies or over 6 months whichever comes first i i ...

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Page 132: ...DOCUMENT SIZE DETECTION signal FAN MOTOR 1 DRIVE command FAN MOTOR 2 DRIVE command GRID ON signal HEATER DRIVE command HVTON command IAMP ON command LOWER CASSETTE PAPER DETECTION signal LIGHT signal LENS HOME POSITION signal LIGHT INTENSITY CONTROL command LENS SOLENOID DRIVE command MULTIFEEDER CLUTCH DRIVE command MULTIFEEDER PAPER DETECTION signal MULTIFEEDER SOLENOID DRIVE command MAIN MOTOR ...

Page 133: ... APPENDIX 2 Abbreviations AER INTR LSTR SCFW SCRV STBY WMUP WMUPR AE ROTATION INITIAL ROTATION LAST ROTATION SCANNER FORWARD SCANNERREVERSE STANDBY WARM UP WARM UP ROTATION ...

Page 134: ...C GENERAL CIRCUIT DIAGRAM 1 6 5 I 4 3 I 2 1 N n E D C B A A 5 ...

Page 135: ...12 11 10 I 9 8 7 1 6 I t ...

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Page 143: ...F AC DRIVER I DC POWER SUPPLY CIRCUIT DIAGRAM I H I I1 I 1 1 A 15 ...

Page 144: ... ...

Page 145: ... _ G PRE EXPOSURE LAMP CIRCUIT DIAGRAM ...

Page 146: ...cation remarks 1 Door switch TKN 0093 Q A actuator t 2 Spring scale CK 0054 B Measuring strength of compression cassette springs A Adjusting scanner drive cable tension 3 Extension CK 0426 B For removing grip rings blades for 4to9mm pliers I Note Code I ii A Each service person y l ld car one X 3 ii B A group of five vice r zfi s should share pne a 1 C I Each kshop shaul kep or T X3 5 s ...

Page 147: ...r cleaning the drum plastic molded parts or corona wires 3 Heat resistant Lubricating grease the drive mechanisms e g copyboard driving gear fixing drive gear fixing ass y etc CANON Tool No CK 0427 500g can Equivalent grease can be used but should be able to withstand 200 C for extended periods of time 4 Lubricating oil Lubrication IS0 VG 68 oil Locally Equivalent oil can low viscosity points ESSO...

Page 148: ...PbPER DECK PEDESTAL J1 SI VICE MANUAL ...

Page 149: ...nt loading COPY paper type Plain paper 64 to 80 g m Copy paper size 1A4 LTR Capacity I __ _ 115 mm stacked approx 1 000 sheets 0180 g ma I Size switching Plate and Size switch 220 240 VAC from copier I Power supply Dimensions 610 W x 577 D x 429 H mm 24 0 W x 22 7 D x 16 9 H in j Weight 28 kg 61 7 lb ...

Page 150: ... 1 GENERAL DESCRIPTION II CROSS SECTIONAL VIEW I Figure l 201 Lifter position sensor Feeder roller 0 Deck pre registration paper sensor Deck registration roller Separation roller Pick up roller Lifter ...

Page 151: ...er inside the pedestal Lifer poskiin SZX Upper limit Mitch Door operJ closed switch In response to the signals from the copier and from its own microswitches and sensors the pedestal s ccntroller generates signals to drive its motor and clutches Figure 2 201 is a block diagram showing the relationship among the pedestal s major circuits The pedestal is supplied with 24 V 5 V and 220 240 VAC by the...

Page 152: ...o and Outputs from Paper Deck Controller l 2 Pspr ded contdlr PCB 1 J 7fr 2 Upper YmitSWIM 54 1 24 L 2 Figure 2 202 HOdcopir DC contoter PCB _ r DK EX Orlll tbn sbnal m o cL1 goesoN f Y hllm 0 CL2 grx ON When 0 SLl gem ON WI 0 CL3 gca ON ...

Page 153: ... m B Inputs to and Outputs from Paper Deck Controller 212 paper deck mnboller PCB I _ Jl 1 I I 01 Ml De motor I Figure 2 203 J F _ c J 1 J 1 DC mntroller PCS r DMD When 0 Ml goes ON When right door Is cloaad and deck Is set 1 ...

Page 154: ... The paper deck motor Ml serves to raise the lifter and drive the pick up separation and registration rollers sensors and switches by way of the paper deck controller PCB The lifter lowwers on its own weight when the paper deck is pulled out releasing the gears DC controller PCB 8 I I Fwer deck cmtro er PCB r _I I f I ...

Page 155: ... the signals from the copier The paper deck motor Ml i6 driven response to the deck motor drive DMD signal from the copier drive is then The cluiches in turn are under control of the signals from the copier When paper is picked up the pick up roller is raised by the pick up roller release solenoid SLl _ Copier _ i Pqmr deck Figure 2 205 Vertical feed roller 1 Vertical feed roller 2 ...

Page 156: ...I 2 OPERATIONS AND TIMNG 1 Sequence of Pick up and Feed Operations COPY START key ON INTR SCFW SCR SCFW SCR LSTR Pickup duti CL2 r rti Q22 r mtk n rdler Id CL3 i _ Figure 2 206 ...

Page 157: ...The pick up roller is released as soon as the grip of the deck is pulled When the latch on the grip comes off the cam on the edge of the roller release shaft the arm on the roller release shaft rises and the pick up roller in turn is raised On the other hand when the latch on the grip pushes up the cam upon insertion of the deck the arm lowers and in turn the pick up roller is lowered The arm is a...

Page 158: ...2 OPERATIONS AND TMNG 2 Releasing the Separation Roller The separation roller is released when I the cam on the deck side plate comes off the release lever roller Figure 2 208 before release Figure 2 209 ...

Page 159: ...Figure 3 201 Remove the screw 0 and detach the deck stopper plate 0 Figure 3 202 3 Detach the deck from the front Slide it out to the front until it stops detach it as if to lift it Figure 3 203 4 Remove the E ring 0 and detach the pick up roller front 0 thereafter pull out the pick up roller rear 0 together with its shaft Figure 3 204 ...

Page 160: ...detach the feed roller 0 Figure 3 205 N 7 I 3 1 _ Take c e the feed i r has its 9 orientation 5 I a I c Separation Roller _ 1 Slide out the deck 2 Open the right door of the pedestal 3 Remove the two stop rings 0 and detach the separation roller front rear n Figure 3 207 Figure 3 206 ...

Page 161: ...ch the deck drive unit see the discussion on removing the deck drive unit See p 3 4P Remove the E ring at the rear and the spring 0 Figure 3 208 Remove the E ring at the front and detach the gear a thereafter detach the registration roller 0 Figure 3 209 ...

Page 162: ...Jl J2 J3 J4 0 and two fastons from the paper deck PCB 6 Detach the strap 0 and remove the right door from the pedestal I 7 Figure 3 212 Remove the four mounting screws 0 and pull the deck drive unit T to the front to detach Figure 3 210 4 Detach the deck stopper plate and pull out the deck 5 Remove the four screws 0 and detach the right cover from the pedestal Figure 3 213 Figure 3 211 ...

Page 163: ... for the pedestal should be as shown in Figure 3 214 If the registration is otherwise make the following adjustments Figure 3 214 2 5f1 5mm 2 Making Adjustments Slide out the deck Figure 3 215 Loosen the four mounting screws on the front cover and the four mounting screws on the grip plate w Figure 3 216 ...

Page 164: ...es while non image width at rear in 3 7 6 Figure 3 217 4 Tighten the four mounting screws on the grip plate after adjustment 5 Set the deck Make copies using the paper deck Repeat steps 3 to 6 if the registration T is outside the standards Fix the front cover so that the gap between the front cover and pedestal frame is about 0 5 mm 0 5 mm kwJr0x 1 Pedestal frame tll Figure 3 218 3 6P CCWRlGHT 093...

Page 165: ...ar cover from the pedestal 2 Detach the stopper plate and take out the deck Figure 3 219 ILTR Figure 3 220 3 4 n Detach the three partitions Fit the partitions into the holes corresponding to the desired size Use a sheet of the desired size as reference to facilitate the work LTR I M A4 LTR Figure 3 221 5 Reset the DIP switch on the deck controller PCB Figure 3 222 6 Set the deck attach the stoppe...

Page 166: ...once within the warranty period due to deterioration wear or damage as of May 1993 No Parts name Parts No CYty Life Remarks 1 Pick up roller FF9 1003 000 2 100 000 2 Feed roller FL9 0009 000 1 100 000 3 Retard roller FL9 001 O 000 1 100 000 4 In deck registration roller FA5 8409 000 1 300 000 Table 4 l Ill PERIODICAL SERVICING CHART a Clean Name of unit 0 Replace X Oil 0 Adjust l Inspect Section I...

Page 167: ... _I ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS I APPENDIX A 1P ...

Page 168: ... Q23 Lifter position sensor Microswitch MS1 Upper limit switch MS2 Door open closed switch 0 M Motor Ml Deck motor 0 CL Clutch CL1 Lifter clutch CL2 Pick up clutch CL3 Registration roller clutch Solenoid SLI Pick up roller release solenoid Deck controller PCB 0 Drives each load in the pedestal I ...

Page 169: ...s LEDs and check pins that can be used in the field Those not discussed are for adjustment at the factory only and adjustments and checks using them call for special tools and instruments as well as high accuracy Do not touch them in the field 1 Deck Controller PCB I I p I 1 q2 Jl 3 55 1 71 I A 3P ...

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