Canon FY8-23AV-000 Photo Scanner User Manual
Contents
1. 4 4102 OJ103 40071 5 oJ104 4108 VR103 mm 8 8 J6 N 8 8 8 VR101 8 8J7 Note The pin No in parentheses refers to the PC400 FC200 Figure 6 1E INN CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS BE 2 Control Panel PCB a 420 430 220 VR602 VR603 VR604 0 0 0 gH J601 22 2 J603 J621 Figure 6 2E b PC400 FC200 VR604 LO 3 611 z 17 J601 1 7 1 18 2 o Figure 6 3E Description Use it to adjust the AE offset use it only after replacing the scanning lamp unit intensity sensor AE sensor or control panel PCB Use it to adjust the AE gain use it only after replacing the scanning lamp unit intensity sensor AE sensor or control panel PCB Use it to adjust the light intensity use it only after replacing the scanning lamp unit intensity sensor AE sensor or control panel PCB Table 6 1E 6 6 CHAPTER 7 SELF DIAGNOSIS CHAPTER 7 SELF DIAGNOSIS The copier s microprocessor on the DC controller DC power supply PCB is equipped with a self diagnostic mechanism that checks the condition of the machine when the mechanism detects an error it indicates an error code on the copy count display The PC400 FC200 does not have a copy count display it2. M1 SL1 ain motor Registration solenoid Motor rotation detection drive solenoid PC400 FC200 GENERAL CIRCUIT DIAGRAM A 5 PC420 430 FC220 GENERAL CIRCUIT DIAGRAM HOT 4 100V Door switch Black Blue Brown Gray Green Orange Pink Red Sky Blue Violet White Yellow Yellow Green A 6 BK DL Fixing heater temperature sensor AE sensor PD602 Intensity sensor PD601 Na gt Thermal fuse 2 Fu2 Scannig lamp PCB Control panel PCB J601 O ios ON r r 212 3 3 2 SW2 J108 50 J101 J102 BK DC controller DC power supply PCB Delivery door switch J201 de 2 SL1 Pick up solenoid Mai Copyboard ain motor position detection Motor rotation detection Copyboard drive solenoid APPENDIX EN D Special Tools Table What follows below is a table of special tools used for servicing the machine in addition to the standard tools set Tool name Tool Number Category Remarks Digital CK 0552 B For adjusting the AE multimeter mechanism tools are categorized as follows A tools that must be carried by
3. 080 10 2210 SERVICE HANDBOOK REVISION 0 JAN 1998 FY8 23AV 000 COPYRIGHT 1998 CANON INC CANON 400 420 430 200 220 REV 0 JAN 1998 PRINTED IN JAPAN IMPRIME AU JAPON IMPORTANT THIS DOCUMENTATION IS PUBLISHED BY CANON INC JAPAN TO SERVE AS A SOURCE OF REFERENCE FOR WORK IN THE FIELD SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY THIS DOCUMENTATION IS INTENDED FOR ALL SALES AREAS AND MAY CONTAIN INFORMATION NOT APPLICABLE TO CERTAIN AREAS COPYRIGHT 1998 CANON INC Printed in Japan Imprim au Japon Use of this manual should be strictly supervised to avoid disclosure of confidential information Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPARTMENT 1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION CANON INC 5 1 Hakusan 7 chome Toride shi Ibaraki 302 Japan COPYRIGHT 1998 CANON INC CANON PC400 420 430 FC200 220 REV 0 JAN 1998 PRINTED IN JAPAN IMPRIME AU JAPON CONTENTS CHAPTER 1 MAINTENANCE AND INSPECTION A Periodically Replaced Parts 1 1 B Durables 1 1 C Periodical Servicing 1 1 D Notes on 1 2 1 Stor
4. p AE light receiving section Figure 2 3B 5 Short the three jumper wires JP604 JP605 JP607 on the control panel PCB at the same time using a screwdriver Caution Take adequate care not to short wires other than those specified 2 4 CHAPTER 2 STANDARDS AND ADJUSTMENTS JP607 JP605 JP604 Figure 2 4B 6 While keeping the condition in step 5 switch the copier ON 0 is displayed the scanning lamp goes ON and the main motor starts to rotate Stop shorting the jumper wires 8 Set the digital multimeter to the 20V DC range and turn VR602 AE offset adjustment until the voltage between the anode side of the diode D606 and JP607 GND is 4 0 0 1 V Notes You must use a Digital Multimeter when making adjustments in steps 8 and 10 VR602 VR603 JP607 D606 anode side Control panel PCB Figure 2 5B 25 CHAPTER 2 STANDARDS AND ADJUSTMENT S BE 9 Place about five sheets of blank copy paper 10 Turn VR603 AE gain adjustment until the voltage between the anode side of the diode D606 it and JP607 GND is 1 8 0 1 V see Figure 2 5B 11 Switch the copier OFF Notes Make sure that the jumping wires are no longer shorted 12 Switch the copier ON once again 13 Set the density correction switch SW606 to the center of the three settings 14 Make sure
5. Registration cam Move the registration cam on the copyboard left and right Is there any change to the reg istration YES Adjust the position of the registration cam Solenoid SL1 DC controller DC power supply PCB Is the solenoid for registration SL1 operating normally 1 Check the solenoid SL1 2 Check the DC con troller DC power supply PCB Pick up roller Copy paper Is the copy paper of a type recommended by Canon Check the pick up roller Try copy paper of a type recommended by Canon if the results are good advise the user to use recommended paper 3 11 IMAGE TROUBLESHOOTING 18 The copy has a blurred image Cause Checks YES NO Remedies Copyboard rail Copyboard drive assembly Is the movement of the copy board rail smooth Is the movement of the copy board normal NO Replace the copyboard rail Check the copyboard drive assembly if a fault is found replace the part Main motor assembly Is the main motor assembly normal Replace the main motor assembly Feeding assembly Cartridge Does the copy paper stop or jump near the transfer assem bly 19 The copy is foggy cross feed direction Cause Checks Remove the foreign matter or burrs from the feeding system YES NO Replace the cartridge Remedies Scanning lamp Cartridge H
6. a Ifthe copies are normal The user may use the cartridge for some time more however advise the user to procure a replacement cartridge b If the copies fail to return to normal Replace the cartridge as described in Replacing the Cartridge ENMICHAPTER 3 IMAGE TROUBLESHOOTING BE 9 Others In winter moving a machine from a cold storage room to a warm site can cause condensation inside the machine leading to various problems a b d e Condensation on the scanning system glass lens array reflecting plate causes dark images When too cold the photosensitive drum assumes a high electrical resistance resulting in poor contrast Condensation in the pick up feeding assembly can cause faulty paper transport Condensation in the lower roller of the manual pick up mechanism decreases friction leading to pick up failure Condensation on the copyboard hinders its smooth movement When condensation is noted dry wipe the parts The same holds true of the cartridge After having moved the cartridge from a cold to warm room leave it alone for about one to two hours before unpacking it CHAPTER 3 IMAGE TROUBLESHOOTING 3 5 ENMICHAPTER IMAGE TROUBLESHOOTING B Samples of Image Faults not available CHAPTER 3 IMAGE TROUBLESHOOTING C Troubleshooting by Image Fault 1 The copy is too light halftone areas only 2 The copy is too light dark areas as well 3 The copy
7. Transfer charging assembly Is the transfer charging assem bly soiled Clean the transfer charging assembly Clean the registration roller Clean the pick up guide plate Check the cartridge for leakage of toner Feeding assembly Delivery roller 3 10 Is the feeding assembly soiled Clean the feeding assembly Clean the delivery roller CHAPTER 3 IMAGE TROUBLESHOOTING 14 The copy has faulty fixing Cause Checks YES NO Remedies Copy paper Is the copy paper of a type rec ommended by Canon NO Try paper of a recom mended type if the results are good advise the user to use recom mended paper Fixing film Is the faulty fixing vertical and in the form of lines Check the fixing film and pressure roller for scratches If scratches are found replace the fixing unit or roller DC controller DC power supply PCB Fixing heater Is the heater turned ON for control after copy operation is started The control temperature for the fixing heater may be low check the ther mistor and DC controller DC power supply PCB See The fixing heater fails to operate 15 The copy has faulty leading edge registration blank area much too wide 16 The copy has faulty leading edge registration blank area too wide 17 The copy has faulty leading edge registration no blank area Cause Checks YES NO Remedies
8. the 300V AC range Replace the DC controller DC power supply PCB Fixing assembly Replace the fixing assembly Is the problem corrected fixing heater error temperature detection circuit ON End Replace the DC controller DC power supply PCB 4 3 CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS T Pick up fails Checks YES NO Remedies Move the copyboard to the left until it stops and open the top cover Does the pick up roller rotate when the door switch is turned ON and the Copy Start key is pressed at the correct pick up timing YES See Pick Up Assembly in Troubleshooting Feeding Faults Main motor M1 Is the main motor rotating See The main motor fails to rotate Pick up sensor Q131 Does the copier operate nor mally when the pick up sensor Q131 is blocked with paper Check the sensor lever Pick up solenoid SL1 PC420 430 FC220 Registration solenoid SL1 PC400 FC200 DC controller DC power supply PCB Set the meter to the SOVDC range Does the voltage between J201 6 and J201 7 on the DC controller DC power supply PCB change to about 24 V at pick up timing 8 The scanning lamp fails to go ON Cause Checks Check the spring clutch in the registration assembly and pick up assembly if normal replace the solenoid YES NO Check the wiring from the solenoid to the DC con
9. 1 de ER Sae caes d EDU DER 4 2 EDS c RR 4 2 Oe Boston dou t iN 4 3 6 AC power is absent 4 3 7 Pick up falle 4 4 8 The scanning lamp fails to go ON EE 9 The main motor fails to rotate 5 11 8 amp N paper feeding normally 4 6 12 amp N at time of jam 4 6 13 The fixing heater fails to operate CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS A Copy Paper Jams 5 1 1 Pick Up Assembly 5 2 2 Separation Feeding Assembly ETENIM 5 2 3 Fixing Delivery Assembly B Feeding Faults 5 4 1 Double Feeding 5 4 2c Wrinkles S 5 4 CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS A Sensors and Solenoids 6 1 SWIICIBS nadia 6 2 C Lamp Heater Motor and Others D Printed Circuit Board PCB 6 4 ii E Variable Resistors VR and Check Pins by 6 5 1 DC Controller DC Power Supply WT PEE 6 5 2 Control Panel PCB 6 6 COPYRIGHT 1998 CANON INC CANON PC400 420 430 FC200 220 REV 0 JAN 1998 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 7 SELF DIAGNOSIS Self 7 1 APPENDIX A General Timing Chart A 1 C General Circuit Diagram A 5
10. Are the primary charging Check the high voltage transformer terminal at the front left of the transformer DC controller cartridge and the high voltage DC power supply PCB Terminals for primary tormina at he De OT Og 1 Check the contact for copier in firm contact DOM charging electrical continuity Cartridge 2 Try replacing the cartridge 22 The copy is solid black Checks YES NO Remedies Is the scanning lamp ON during YES if the cartridge is copying operation set properly NO See The scanning lamp fails to go ON 3 13 ENMICHAPTER 3 IMAGE TROUBLESHOOTING RSS 3 14 CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS A Troubleshooting Malfunctions 1 self diagnosis PC400 FC200 Checks YES NO Remedies Cause Switch the copier ON Does the Jam indicator remain On for about 0 5 sec and does the copier go OFF automatically thereafter Checks YES See E00 NO YES NO See the discussions on E2 E6 and E9 Remedies Thermistor TH1 Set the meter to the 12VDC range and wait until the fixing heater is sufficiently cool Measure the voltage between J603 1 and J603 2 Is it about 3 2 V or more NO Check the wiring from the DC controller DC power supply PCB to the ther mistor TH1 if normal replace the fixing assem bly D
11. GRAY NVD XXXXX FC220 WHITE ZTJ XXXXX PC420 WHITE 230V 50Hz RTL PTQ XXXXX FC200 WHITE UTP UTQ RTM PTR XXXXX FC220 WHITE PTS XXXXX FC220 WHITE PTT XXXXX FC220 WHITE Power consumption Maximum 0 7 kW or less Standby 0 1 W approx 5 min reference only Continuous 0 2 kWh reference only Noise Copying 71 dB Sound power level Standby by ISO Ozone 0 01 ppm or less average over 8 hr Dimensions Width 14 1 in 359 mm Depth 15 7 in 402 mm Height 4 1 in 108 mm Weight including cartridge 16 6 Ib 7 4 kg approx Consumables A 10 Copy paper Keep wrapped to protect against humidity Cartridge See CHAPTER 1 Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPARTMENT 1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION CANON INC Printed in Japan REVISION 0 JAN 1998 23715 5 1 Hakusan 7 chome Toride shi Ibaraki 302 Japan Canon This publication is printed on 70 reprocessed paper PRINTED IN JAPAN IMPRIME AU JAPON 0198M2 01 1
12. H1 Primary AC bias Primary DC bias Developing AC bias Developing DC bias 10 Transfer 11 Pick up sensor Q131 12 Pick up solenoid SL1 240V 625V 400V 120 to 560V 13 Delivery sensor Q801 A 2 Cleaning mode Measurement mode APPENDIX Signals Abbreviations List What follows below is a list of signals and abbreviations used in the chapters of the manual and circuit diagrams The abbreviations within parentheses represent analog signals which cannot be expressed in terms of 1 or 0 1 Signals ACBTP AE CBSD DCBPWM DCTPWM DGTO DGT2 HTRD HVPAC HVPDC HVPHO HVTDC KEYRO KEYR1 LAPWM LID MMCLK MMD PWOFF PWSON PUSD RELAYED RGSD TH1 TREV VPEAK ZXDP AC BIAS TIMING PULSE COMMAND AE SIGNAL COPYBOARD DRIVE SOLENOID DRIVE COMMAND DC BIAS CONTROL COMMAND TRANSFER DC BIAS CONTROL COMMAND OSCILLATION SIGNAL 0 OSCILLATION SIGNAL 1 OSCILLATION SIGNAL 2 FIXING HEATER DRIVE COMMAND PRIMARY AC BIAS ON COMMAND PRIMARY DC BIAS ON COMMAND PRIMARY DC BIAS HIGH OUTPUT COMMAND TRANSFER DC BIAS ON COMMAND RETURN SIGNAL 0 RETURN SIGNAL 1 LAMP DRIVE COMMAND LAMP INTENSITY DETECTION SIGNAL MAIN MOTOR CLOCK PULSE SIGNAL MAIN MOTOR
13. be 0 2 to 5 0 mm when the Test Sheet is copied To adjust move the position of the registration cam 0 2 to 5 0 mm Figure 2 3A 2 1 CHAPTER 2 STANDARDS AND ADJUSTMENTS B Electrical Notes If you have replaced the scanning lamp unit intensity sensor AE sensor or control panel PCB you must adjust the three variable resistors on the control panel PCB one if 400 200 you must however adjust them in the order of VR604 VR602 and VR603 from intensity to AE Adjusting the Intensity VR604 After Replacing the Control Panel PCB Only Disconnect the power plug and detach the faulty control panel PCB Set the meter to the 200 k range and measure C between the terminal of VR604 and the terminal of R614 on the detached control panel PCB see Figure 2 1B Likewise measure C between the terminal of VR604 and the terminal of R614 on the new control PCB then turn VR604 so that the reading is the same as the measurement taken in step 2 In the case of the PC420 430 FC220 adjust VR602 A between terminals of VR602 and JP607 and VR603 Between terminals of VR603 and JP621 see Figure 2 1B Attach the new control panel PCB to the copier B VR603 B JP621 A JP607 Figure 2 1B PC420 430 FC220 2 2 CHAPTER 2 STANDARDS AND ADJUSTMENTS Con
14. copy has uneven density darker at front 3 8 The copy has uneven density lighter at front 3 8 The copy is foggy overall 3 8 The copy is foggy paper feed 3 9 The copy has dark lines paper feed direction relatively narrow 3 po Ne oe 9 The copy has dark lines paper feed direction thin 3 9 10 The copy has white spots pa feed direction 3 9 11 The copy has white lines paper feed direction 3 9 12 The copy has white spots cross feed direction 3 10 13 The back of the copy is soiled 14 The copy has faulty fixing 15 The copy has faulty 5 edge registration blank area much too wide 3 11 16 The copy has faulty leading edge registration blank area too urere 3 11 17 The copy has faulty leading edge registration no blank area 18 The copy has a blurred image men 3 12 19 The copy is foggy cross feed direction 3 12 20 The copy has poor sharpness FOCUS eds 3 12 21 The copy is blank 3 13 22 The copy is solid black 3 13 CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS A Troubleshooting Malfunctions 4 1 1 self diagnosis PC400 FC200 Re 4 1 2 4
15. each service person B tools that must be carried by a group of about five service persons C tools that must be kept by each workshop APPENDIX EE E Solvents Oils Table Name Uses Composition Remarks Alcohol Cleaning Hydrocarbon fluorine family Do not bring near fire e g glass plastic Alcohol Procure locally rubber parts Surface active agent Isopropyl alcohol may be external covers substituted Solvent Cleaning Hydrocarbon Do not bring near fire e g metal fluorine chlorine family Procure locally oil or toner dirt Alcohol Heat resisting Lubricating Lithium soap CK 0427 500 g can grease drive assemblies mineral oil family Molybdenum bisulfate Lubricating oil Mineral oil paraffin family CK 0451 100 cc Lubricating oil Mineral oil paraffin family CK 0524 100 cc A 8 APPENDIX F Specifications PC400 FC200 PC420 430 FC220 Body Portable w grips Copyboard Light source Lens Photosensitive medium Copying Moving Tungsten lamp of fuse type Lens array OPC 24 dia Indirect electrostatic Charging Roller direct charging Exposure Slit moving copyboard Copy density adjustment Manual Automatic AE or Manual Development Dry Pick up Manual tray Multifeeder Separation Curvature Static eliminator Cleaning Blade Fixing Plane heat
16. present between terminals of the heater NO Replace the fixing assembly Thermistor TH1 TH2 Is the resistance between the following terminals on the control panel PCB 00 or about 1 3 MQ 603 1 lt gt J603 2 Replace the fixing assembly Fixing assembly DC controller DC power supply PCB 4 6 Replace the fixing assembly Is the problem corrected End Replace the DC controller DC power supply PCB CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS A Copy Paper Jams Jams can be classified according to location within the copier D Pick up assembly 2 Separation feeding assembly 3 Fixing delivery assembly The discussions that follow are organized with reference to these assemblies Los i L2 3L C D Figure 5 1A CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS 1 Pick Up Assembly Cause Checks YES NO Remedies Copy paper Try copy paper of a type recommended by Canon Is the problem corrected Is the copy paper curled or wavy or otherwise deformed YES Advise the user to use recommended paper Replace the copy paper advise the user on the correct method of storage Pick up sensor lever Is the movement of the pick up sensor lever
17. smooth Adjust the movement of the pick up sensor lever Spring pick up guide plate PC420 430 FC220 Check the movement of the pick up guide plate found under the pick up roller Is its movement smooth Check the position of the spring of the pick up guide plate Pick up roller Spring for pick up control Spring clutch PC420 430 FC220 Is the pick up roller deformed or worn 2 Separation Feeding Assembly Cause Checks Replace the pick up roller YES NO 1 Check the spring 2 Check the spring clutch Remedies Copy paper Try paper of a type recom mended by Canon Is the problem corrected YES Advise the user to use recommended paper Is the copy paper curled or wavy or otherwise deformed Replace the copy paper advise the user on the correct method of storage Feeding assembly Is foreign matter found in the feeding assembly Remove the foreign matter Static eliminator Is the static eliminator soiled with toner Clean the static eliminator Registration roller Spring for registration control Spring clutch registration assembly 5 2 Is the registration roller worn deformed or soiled If dirt is found clean it using alcohol if worn or deformed replace it 1 Check the spring 2 Check the spring clutch in the registration assembly NENNEN CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLE
18. that the AE indicator is ON 15 Set the newspaper used in step 4 on the copyboard once again this time move the newspaper to a different area 16 Make a copy and make sure that it is not foggy and has adequate text density If foggy Turn VR602 clockwise slightly e If text density is low Turn VR602 counterclockwise slightly 17 Repeat steps 15 and 16 until the density is optimum 2 6 CHAPTER IMAGE TROUBLESHOOTING Ell CHAPTER 3 IMAGE TROUBLESHOOTING A Making Initial Checks 1 Site Environment a b pU ED The voltage of the power source must be within the specifications Avoid areas subjected to dust or high temperature humidity near water faucets water boilers humidifiers and areas near open fires Avoid areas subjected to ammonium gas Avoid direct rays of the sun otherwise provide curtains k Make sure the site is well ventilated Make sure the floor is level Check the site to see if it meets the above requirements 2 Checking the Documents You must first check to see if a particular problem may not be due to the document used a b C The copy density reading should be 5 5 1 5 black 4 5 1 5 color Some backgrounds i e yellow shades tend to produce copies with poor contrast Diazo copies or translucent documents tend to produce copies that may be mistaken for foggy copies Documents prepared in light pencil tend to produce copies that may be mistaken for light c
19. toner can cause Soiled copies Transfer Lint free Cleaning charging roller paper Do not use water or solvent Take care Blower brush Cleaning Copyboard Parts Tools Solve Remarks Copyboard alcohol cover Copyboard alcohol glass White alcohol reflecting strip Dirt can soil the leading edge margin causing jams not to touch the roller or leave oil Fixing assembly Parts Tools Solve Remarks Inlet guide Solvent 1 6 Pick up roller assembly Parts Tools Solve Remarks Pick up roller Well wrung Cleaning moist cloth or alcohol Registration assembly Parts Tools Solve Remarks Registration Well wrung Cleaning roller moist cloth CHAPTER 2 STANDARDS AND ADJUSTMENTS CHAPTER 2 STANDARDS AND ADJUSTMENTS A Mechanical 2 1 Image Leading Edge Non Image Width position of white paint on back of glass The leading edge non image width must be 2 0 1 0 mm when the Test Sheet is copied Y 2 0 1 0 mm Figure 2 1A The leading edge non image width is determined by the position of the white paint found behind the copyboard glass Copyboard glass Size index f 2mm White paint Figure 2 2A 2 Image Leading Edge Margin point of detection for registration The leading edge margin must
20. top cover Does the copy image have white spots or white lines before fixing NO Check the fixing assembly Cartridge Rotate the cartridge several times Is the problem corrected Advise the user that the cartridge is running short of toner Transfer charging roller Cartridge Is there foreign matter or scratches on the transfer charging roller Remove the foreign matter or replace the transfer charging roller Replace the cartridge 3 9 ENMICHAPTER 3 IMAGE TROUBLESHOOTING RSS 12 The copy has white spots cross feed direction Cause Checks YES NO Remedies Copy paper Is the copy paper of a type rec ommended by Canon NO Try recommended paper if the results are good advise the user to use recommended paper Try copy paper fresh out of package Is the problem corrected The copy paper may be moist advise the user to store it wrapped Copyboard rail Scanning lamp Developing bias Is the problem noted at the same position on all copies 13 The back of the copy is soiled Checks Check the copyboard rail for foreign matter YES NO Check the scanning lamp for flickering and check the presence absence of a developing bias Remedies Press the Copy Start key and switch the copier OFF while the copy paper is moving through the feeding assembly Is the back of the copy soiled NO Go to step 3
21. troller DC power supply if normal replace the DC controller DC power supply PCB Remedies Scanning lamp LA1 LA8 Is the scanning lamp unit attached correctly NO Re attach the lamp unit Scanning lamp LA1 LA8 Is the scanning lamp black Replace the scanning lamp unit DC controller DC power supply PCB Connector 4 4 Is the connector of the scanning lamp connected firmly Replace the DC controller DC power supply PCB Re connect the connector CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS 9 The main motor fails to rotate Cause Checks YES NO Remedies Main motor M1 DC controller DC power supply PCB Set the meter to the 30VDC range Does the voltage between J903 1 and J903 2 change from about 0 V to about 20 V according to the operation of the main motor 10 The copyboard fails to move Cause Checks YES YES NO Replace the main motor Check the wiring from the motor to the DC controller DC power supply PCB if normal replace the DC controller DC power supply PCB Remedies Main motor M1 Is the main motor rotating NO See The main motor fails to rotate Copyboard Copyboard drive assembly Push the copyboard by hand Does it move smoothly NO Check the copyboard and copyboard drive assembly DC controller DC power supply PCB Copyboard dri
22. B Signals Abbreviations List A 3 D Special Tools Table A 7 1 E Solvents Oils A 8 2 Abbreviations A 4 F Specifications A 9 COPYRIGHT 1998 CANON INC PC400 420 430 FC200 220 REV 0 JAN 1998 PRINTED IN JAPAN IMPRIME AU JAPON iii COPYRIGHT 1998 CANON INC CANON PC400 420 430 FC200 220 REV 0 JAN 1998 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 1 MAINTENANCE AND INSPECTION 1 CHAPTER 1 MAINTENANCE AND INSPECTION A Periodically Replaced Parts The machine does not have parts which must be replaced on a periodical basis B Durables The machine does not have parts which are classified as durables C Periodical Servicing The machine does not have parts that require periodical servicing ta CHAPTER 1 MAINTENANCE AND INSPECTION D Notes on Cartridge The cartridge is affected by the environment regardless of whether it is sealed or unsealed and installed in the machine or otherwise Although the properties of the cartridge change over time independent of how many copies have been made the degree of care taken for the cartridge affects how long it may remain stable 1 Storing Sealed Cartridges When storing the cartridge in a warehouse or workshop make sure the place is controlled to the specifications shown in Table 1 1D a Avoid direct rays of t
23. C controller DC power supply PCB Fixing assembly Does the fixing heater operate normally Switch the copier ON and make a copy Measure the voltage between J603 1 and J603 2 once again Is the voltage lower than that measured in step 1 See The fixing heater fails to operate Replace the DC controller DC power supply PCB Check the wiring from the DC controller DC power supply PCB to the ther mistor TH1 if normal replace the fixing assem bly 4 1 EE CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS RSS Checks YES NO Remedies Does the copying operation start YES the operation with with the copyboard at the left or the copyboard moved to right the center advise the user that this is not the copier s problem Does the copyboard move in See The copyboard fails reverse In addition does it to move move in reverse far too slowly DC controller DC Does the copyboard move in Replace the DC con power supply PCB reverse after copying operation troller DC power supply has started and move forward PCB after it has reached the copy board start position Copyboard drive Check the copyboard assembly position sensor Q902 Copyboard glass Try replacing the copy assembly board drive assembly Check the start position cam and reversal cam in the copyboard glass assembly Cause Checks YES NO Remedies Control panel PCB Replace the control pan
24. DRIVE COMMAND POWER OFF COMMAND POWER SWITCH ON SIGNAL PICK UP ROLLER SOLENOID DRIVE COMMAND RELAY DRIVE COMMAND REGISTRATION SOLENOID DRIVE COMMAND THERMISTOR SIGNAL 1 TRANSFER REVERSE DC BIAS ON COMMAND VOLTAGE PEAK DETECT SIGNAL ZERO CROSS DETECTION SIGNAL A 3 EN APPENDIX 2 Abbreviations INTR LSTR CBFW CBRV STBY 4 INITIAL ROTATION LAST ROTATION COPYBOARD FORWARD COPYBOARD REVERSE STANDBY j J HOT do J 7 Swi Door switch Black Blue Brown Gray Green Orange Pink Red Sky Blue Violet White Yellow Yellow Green SW2 EEES CHO o p BK W do Delivery door switch Scannig lamp PCB J108 Copyboard position detection Thermal fuse 2 FU2 BK W Fixing heater H1 JP350 J101 J102 C General Circuit Diagram Fixing heater temperature sensor Intensity sensor PD601 L Control panel PCB J601 DEN GNE GRE OE GO OMT TERT b TERRE On LEE Ome Om Gy DET D 62 RN DRM zzzzz r E a EIl OO 42 OG Q d gt 4202 DC controller DC power supply J201 Copyboard 1
25. L PARTS C Lamp Heater Motor and Others Figure 6 1C Notation Description Heater H1 Fixing heater Motor M1 Main motor Thermistor Fixing heater temperature detection Thermal fuse Fixing heater overheating detection 6 3 CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS BE D Printed Circuit Board PCB 6 E gt lt x e NEN Figure 6 1D D Description DC controller DC power supply PCB Controls sequence supplies DC power controls scanning lamp ON Control panel PCB Controls displays copying operation Scanning lamp PCB Scanning lamp LA1 LA8 Delivery sensor PCB Detects delivery Motor rotation sensor PCB Detects main motor rotation Copyboard position sensor PCB Detects copyboard position 4 5 6 4 NENNEN CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS E Variable Resistors VR and Check Pins by PCB Of the variable resistors VR and check pins used in the copier those used in the field are discussed herein Do not touch those VRs and check pins not discussed herein they are for factory use only and require special tools and high precision for adjustment Note 1 VRs that may be used isthe M 2 VRSs that must be used in the field 2 1 DC Controller DC Power Supply PCB
26. MS 3 Fixing Delivery Assembly Cause Checks YES NO Remedies Separation Feeding assembly Are the copy image and the document matched correctly NO Check the separation feeding assembly Fixing assembly inlet guide Is the inlet guide soiled with foreign matter or toner Clean it Delivery sensor lever Does the delivery sensor lever move smoothly Correct it so that the lever moves smoothly Delivery roller assembly Delivery sensor PCB Is the delivery sensor Q801 PCB normal Check the delivery roller assembly Replace the delivery sensor PCB 5 3 CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS RSS B Feeding Faults 1 Double Feeding Cause Checks YES NO Remedies Copy paper Separation pad Spring pick up guide plate PC420 430 FC220 2 Wrinkles Cause Try copy paper of a type recommended by Canon Check the movement of the pick up guide plate Is the movement smooth Checks YES Advise the user to use recommended paper Check the condition of the separation pad YES NO Check the position of spring Remedies Pick up assembly Registration roller Switch the copier OFF while the copy paper is moving through the feeding assembly Is the paper wrinkled at the time Or is it moving askew YES Check the pick up assem bly Check the registration roller Copy
27. dust ammonium gas or gases from organic solvents tend to accumulate Keep the cartridge in a place 40 C or less Handling the Cartridge Before inserting the cartridge in the copier or if the toner starts to run short hold the cartridge horizontally as shown in Figure 1 1 and rotate it in both directions about 90 to even out the toner inside it Do not shake the cartridge or hold it in a different way otherwise toner may leak out the cartridge Figure 1 1D CHAPTER 1 MAINTENANCE AND INSPECTION BE 2 Do not place the cartridge upright or upside down do not shake it Figure 1 2D 3 Do not force open the shutter for the photosensitive drum cover found at the bottom of the cartridge do not touch the surface of the photosensitive drum If the surface of the photosensitive drum has become soiled wipe it using a flannel cloth coated with toner Do not dry wipe it or use solvent 4 Do not disassemble the cartridge 5 Do not subject the cartridge to vibration or impact in particular do not force down the photosensitive drum from above the shutter for the drum cover 6 Keep the cartridge out of reach of children 7 The photosensitive drum is susceptible to light and therefore equipped with a light blocking shutter nevertheless exposure to light for a long time can affect the drum resulting in copies with white spots or vertical lines Leave the copier alo
28. e copyboard does not reach the start position within a specific period of time or it moves past the start position The copyboard position sensor Q902 is ON 1 5 sec after the copyboard has started moving forward from the start position The copyboard position sensor Q902 does not go ON 10 4 sec after the copy board has started moving forward from the start position The copyboard position sensor Q902 does not go ON 1 2 sec or 4 7 sec after the copyboard has started moving in reverse from the reversal position Control panel PCB faulty The scanning lamp has remained for 2 DC controller DC power supply PCB sec continuously at such times as not faulty prescribed Power supply frequency error The power supply frequency is higher than specified Note 1 The copier does not use code E1 Ed or E5 2 After self diagnosis has gone ON the copier may be reset by switching it OFF and then ON In the case of EO however the power is automatically turned OFF To reset disconnect the power plug once open the upper cover or wait about 5 minutes without any operation during the period the microprocessor remains powered and retains EO This consideration is to prevent the user from resetting the machine easily when the thermistor may have blown otherwise the fixing heater would become overheated damaging parts near it 3 Activation of self diagnosis forces the fi
29. el PCB YES Is the problem corrected DC controller DC P Check the harness from power supply PCB the control panel PCB to the DC controller DC power supply PCB if normal replace DC power supply PCB 4 2 EE CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS Cause Checks YES NO Remedies DC controller DC power supply PCB Power supply 6 AC power is absent Cause Replace the DC controller DC power supply PCB Is the problem corrected Checks YES End NO YES NO Advise the user that the frequency of the power supply is faulty Remedies Power plug Is the power plug connected to the copier and the power outlet NO Connect the power plug Is E code PC420 430 FC220 or JAM PC400 FC200 indicated for about 0 5 sec after the power switch is turned ON and does the power turn OFF thereafter See E0 Top cover Delivery assembly cover Are the top cover and delivery assembly cover closed properly Close the top cover and delivery assembly cover Power supply voltage Is the rated voltage present at the power outlet Advise the user that the problem is not of the copier Door switch Is the door switch SW1 SW2 normal Replace the door switch DC controller DC power supply PCB Is the rated power supply voltage present between J103 and J104 on the DC controller DC power supply PCB Set the meter to
30. er Performance Document type Sheet Book 3 D object 2 kg 4 4 Ib max Maximum document size LTR A4 LGL Reproduction ratio 1 1 1 2 Wait time 0 sec approx at 20 C 68 F First copy 22 sec LTR Continuous copying Not available 1 to 9 copies or F Copying speed 4 copies min approx AAR LTR R or smaller 4 copies min A4R LTR R or smaller 3 copies min LGL Copy size A4 LTR LGL max postcard min Copy paper type 52 to 128 g m Tracing paper Colored paper OHP film Postcard vertical Labels Wrapping paper 63 g m Two sided copying Same edge orientation Copying on each side no more than twice Paper of 64 to 128 g m Overlay copying Paper of 64 to 128 g m Copying on each side no more than three times Multifeeder tray Copy tray 5 mm deep about 50 sheets of A4 80 g m 9 copies approx A4 LTR 80 g m Non image width 2 mm leading edge A4 0 mm left right LTR LGL 2 mm left right Auto power off PC430 only Available 5 min approx A 9 Item PC400 FC200 PC420 430 FC220 Operating environment Temperature 7 5 to 32 5 C 45 5 to 90 5 F Humidity 5 to 85 Atmospheric pressure 810 6 hPa to 1013 3 hPa 0 8 to 1 atm Serial numbers Serial numbers 120V 60Hz ZTG XXXXX PC400 WHITE ZTH XXXXX PC400
31. he sun b Avoid areas subjected to appreciable vibration c Do not drop or subject it to impact Normal 0 to 35 C 9 10 of period 32 to 95 F Severe 1 10 35 to 40 C of period 95 to 104 F 20 to 0 C 4 to 32 F Temperature Temperature fluctuations 40 15 C within about 3 min 104 gt 59 F 20 C gt 25 4 F 77 F Normal 35 to 859 RH 9 10 of period Severe 1 10 High 85 to 9596 RH Of padou Low 10 to 35 RH Humidity Atmospheric pressure 460 to 760 mmHg 0 1 to 1 atm Table 1 1D Temperature Humidity Specifications Temperature Humidity 20 to 40 C 4 to 104 F 90 or less Table 1 2D Transportation 1 2 NENNEN CHAPTER 1 MAINTENANCE AND INSPECTION 2 Storing and Handling Unsealed Cartridges The photosensitive medium is an organic photoconductor OPC which is extremely susceptible to light Since the cartridge also contains toner you must be extra careful when storing or handling the cartridge Make sure the user is aware of this fact and will handle the cartridge with care a Storing Unsealed Cartridges Avoid areas subjected to strong rays of the sun Do not keep it in a car even in a protective box the inside may become extremely hot Avoid areas of high or low temperature humidity and areas where these elements tend to change rapidly for example near air conditioners or heaters Avoid areas where
32. igh voltage transformer Does the scanning lamp flicker Replace the cartridge Is the problem corrected 20 The copy has poor sharpness focus Checks YES Replace the scanning lamp unit End YES NO Check the high voltage transformer DC controller DC power supply PCB Remedies Does the copy have an image which is too light at the same time YES Correct the light image first Document Is there a gap between the document and the copyboard glass Check the copyboard glass to make sure it is not warped Advise the user how to place documents cor rectly Is the lens off contact Push the lens into place while taking great care not to scratch it 3 12 Clean the scanning lamp reflecting plate and lens Is the problem corrected End Replace the cartridge CHAPTER 3 IMAGE TROUBLESHOOTING 21 The copy is blank Checks YES NO Remedies Is the cartridge set in the copier NO Set the cartridge in the copier Does the cartridge have toner NO Replace the cartridge Has the seal been removed from NO Remove the seal the cartridge Set the cartridge in the copier NO Make adjustments so that and close the copier the shutter opens Does the drum cover shutter smoothly open without fail Drum drive assembly Is the drum drive gear rotating Check the drum drive normally assembly High voltage
33. indicates an error condition by flashing the Jam indicator E6 is represented by alternating EE Cause Description Note Thermistor TH1 faulty Fixing heater H1 faulty DC controller DC power supply faulty The temperature of the fixing heater is 215 C or more The temperature of the fixing heater does not reach 80 C within 2 5 sec after copying operation has started The temperature of the fixing heater lowers below 135 C after has reached 150 C The temperature of the fixing heater does not reach 150 C within 7 5 sec after copying operation has started The maximum supply power is detected for about 5 sec after the temperature of the fixing heater has reached 150 C If an error associated with EO is detected E is displayed PC420 430 FC220 or the Jam indicator PC400 FC200 remains ON for about 0 5 sec thereafter the power goes out 7 1 CHAPTER 7 SELF DIAGNOSIS Cause Description Copyboard drive assembly The copyboard position sensor Q902 faulty operation goes ON when copying operation starts Copyboard drive solenoid The copyboard position sensor Q902 SL2 faulty is ON 0 8 sec after copying operation Copyboard position sensor PCB has started Q902 faulty The copyboard position sensor Q902 DC controller DC power supply PCB does not go ON within 5 5 sec after faulty copying operation has started Th
34. ing Is gray scale No 9 barely noted See Note 2 problem corrected by the density correction switch Is optimum density obtained by adjusting the intensity of light See NO E Image Adjustment Basic Procedure End YES End 3 Density of gray scale No 1 see Note 3 4 Fogging in white area see Note 3 Check the following 1 Cartridge 2 Scanning lamp unit 3 DC controller DC power supply PCB see Troubleshooting by Image Fault 2 3 Notes 1 If a mono color cartridge is used set the density control dial to 4 5 If NB3 is used refer to gray scale No 10 The machine is not equipped with an adjustment function for each type of image fault see Troubleshooting by Image Fault For instructions on how to adjust the intensity of light see p 2 2 1 5 F Points to Note Optical assembly Tools Solve Remarks Cotton wad Do not use the wire cleaner meant for conventional machines Scanning lamp Electrical Parts Blower brush Tools Solve Remarks Intensity AE Cartridge Transfer charging roller sensor Parts Tools Solve Remarks Photosensitive Toner As a rule do not drum clean Do not use solvents Do not touch the drum Avoid light Drum cover Well wrung Be sure to clean the shutter moist cloth shutter particles of
35. ing Sealed Cartridges 1 2 2 Storing and Handling Unsealed Cartridges 1 3 E Image Adjustment Basic Procedure OG 1 5 F Points to Note e een 1 6 CHAPTER 2 STANDARDS AND ADJUSTMENTS 1 Image Leading Edge Non Image Width position of white paint on back of QIASS 2 1 2 Image Leading Edge Margin point of detection for registration B El cinibalss ss 2 2 1 Adjusting the Intensity VR604 2 Adjusting the AE Mechanism VR602 603 2 4 CHAPTER 3 IMAGE TROUBLESHOOTING A Making Initial Checks 3 1 1 Site Environment 3 1 2 Checking the Documents 3 1 3 Checking the Copyboard Cover and Copyboard Glass for Dirt and 5 3 2 4 Checking the Lens Array for Dirt 3 2 5 Checking the Transfer sue 3 2 6 Checking the Feeding Assembly 7 Checking the Copy Paper 3 2 8 Checking the Durables 3 2 9 3 4 B Samples of Image Faults 3 6 C Troubleshooting by Image Fault RENE 3 7 1 The copy is too light halftone areas 3 7 2 The is too light dark areas as 3 7 3 The is too light extremely light overall 3 7 The
36. is too light extremely light overall Lens Reflecting plate Intensity sensor Clean the lens reflecting plate and intensity sensor Is the problem corrected Press the Copy Start key and switch the copier OFF in the middle of operation then open the top cover Is the toner image on the pho tosensitive drum more or less normal before transfer Be sure to check quickly to protect the drum against light Go to step 5 Transfer charging roller Copy paper Transfer Is the transfer charging roller normal Try paper fresh out of package Is the copy density higher Re attach the charging roller Replace the charging roller The paper may be moist advise the user on the correct method of storage Advise the user that the use of non recom mended paper may not bring about the best results Cartridge DC controller DC power supply PCB Replace the cartridge Is the problem corrected End Replace the DC controller DC power supply PCB 3 7 ENMICHAPTER 3 IMAGE TROUBLESHOOTING 4 The copy has uneven density darker at front 5 The copy has uneven density lighter at front Checks YES NO Remedies Clean the scanning lamp reflecting plate and lens Is the problem corrected YES Cartridge Scanning lamp Transfer charging roller Press the Copy Start key and switch the copier OFF in the middle of opera
37. ne for some time for possible recovery to avoid residual memory which results in white spots or vertical lines however keep the following in mind Caution Work quickly when removing jams or replacing cartridges When the cartridge must be removed for work be sure to put the cartridge in its storage box or cover it do not leave it without protective measures once it is outside the copier Reference pm The drum would recover to more or less its normal condition if left alone for five minutes in a dark place after exposure to an intensity of 1500 lux about 5 minutes under general lighting However you must try to avoid any exposure The rays of the sun have intensities ranging between about 10000 and 30000 lux 1 4 lt Pre Checks gt C Clean the parts D system and delivery assembly Is the setting of the density correction switch at the middle Set the switch to the middle YES y Select non AE and set the density control dial lever to 5 5 then make two to three copies of the Test Chart NB 3 NA 2 NA 3 see Note 1 Check the following 1 Density of gray scale No 9 see Note 2 2 Difference in density between front and rear see Note 3 Optimum Density Adjustment Scanning system pick up feed
38. opies 3 1 ENMICHAPTER 3 IMAGE TROUBLESHOOTIN RSS 3 Checking the Copyboard Cover and Copyboard Glass for Dirt and Scratches If dirt is found clean it using mild detergent or alcohol if scratches are found replace it 4 Checking the Lens Array for Dirt Check the lens array for dirt If found clean it using a cotton wad 5 Checking the Transfer Charging Roller Check the transfer charging roller for scratches or other abnormalities 6 Checking the Feeding Assembly Check the feeding assembly for dirt If dirt is found clean it with a moist cloth 7 Checking the Copy Paper a Check to see if paper of a type recommended by Canon is used b Check to make sure that the paper is not moist Try paper fresh out of package 8 Checking the Durables Checking the Cartridge White spots or vertical white lines tend to appear when the cartridge starts to run short of toner see Figure 10 3014 Preface Thank you for urc anon copier copier its functions hod of use It to ensure safe e read this me in order to ith its capabilit functions Ait yo ng this manua CAUTIO this manu 72 AGES with this procedure ac It in personal in Figure 3 1A CHAPTER IMAGE TROUBLESHOOTING Go over the following when this is noted 1 Take out the cartridge from the copier and rotate it several times Figure 3 2A 2 Setthe cartridge back into the copier and make copies
39. paper Try paper fresh out of package Is the problem corrected The paper may be moist advise the user on the correct method of storage Also advise the user to remove curling before feeding paper for a second time when making two sided overlay copies Try copy paper of a type recommended by Canon Advise the user to use recommended paper Inlet guide Fixing assembly Fixing assembly 5 4 Is the inlet guide soiled with foreign matter or toner Clean it using solvent Check the fixing assembly CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS A Sensors and Solenoids Figure 6 1A Name Notation Description Photointerrupter Q131 Pick up assembly paper sensor Q801 Delivery assembly paper sensor Q901 Motor rotation sensor Q902 Copyboard position sensor Photodiode PD601 Intensity sensor PD602 AE sensor Solenoid SL1 Pick up registration solenoid SL2 Copyboard drive solenoid 6 1 INN CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS BE B Switches SW1 SW604 SW606 SW2 ups Figure 6 1B Notation Description 6 2 Swi Top cover switch SW2 Delivery assembly door switch SW604 Power switch SW606 Density 3 setting switch NENNEN CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICA
40. tion then open the top cover Does the toner image on the photosensitive drum before transfer have uneven density 6 The copy is foggy overall Checks 1 Replace the cartridge 2 Replace the scanning lamp unit YES NO Check the transfer charg ing roller Remedies Clean the scanning lamp reflecting plate and lens Is the problem corrected YES Scanning lamp Developing bias Grounding spring 3 8 Is continuity present between photosensitive drum PCB and grounding spring 1 Check if the scanning lamp goes ON normally 2 Check the developing bias Check to make sure if the grounding spring is prop erly attached in front of the cartridge CHAPTER 3 IMAGE TROUBLESHOOTING 7 The copy is foggy paper feed direction 8 The copy has dark lines paper feed direction relatively narrow 9 The copy has dark lines paper feed direction thin Checks YES NO Remedies Clean the scanning lamp reflecting plate and lens Is the problem corrected YES 10 The copy has white spots paper feed direction 11 The copy has white lines paper feed direction Cause Take out the cartridge and put it back in Is the problem corrected Checks End YES NO Replace the cartridge Remedies Fixing assembly Press the Copy Start key and switch the copier OFF in the middle of operation then open the
41. trol panel PCB C R614 Figure 2 2B PC400 FC200 b After Replacing the Scanning Lamp Unit Intensity Sensor or AE Sensor Before Adjustment e If the scanning lamp has blackened replace it Clean the scanning system lens array lamp reflector lamp 1 Set the cartridge to the copier 2 De select AE and set the copy density control lever dial to the center 3 Set the density correction switch SW606 to the center PC420 430 FC220 4 Set the Test Sheet 2 and make copy 5 Check if the copy is free of fogging and gray scale No 9 No 10 if NB3 is somewhat visible If too dark Turn VR604 on the control panel PCB clockwise slightly to increase the intensity If too light Turn VR604 counterclockwise slightly to decrease the intensity 6 Repeat steps 4 and 5 until the density is optimum Notes After adjusting the intensity be sure to adjust the AE mechanism PC420 430 FC220 2 3 BB CHAPTER 2 STANDARDS AND ADJUSTMENT S 2 Adjusting the AE Mechanism VR602 VR603 Before Adjustment Obtain a newspaper whose text consists of fine print do not use a section with photos or large characters Make sure you have adjusted light intensity 1 Switch the copier OFF 2 Detach the control panel cover 3 Turn VR602 and VR603 on the control panel PCB fully clockwise 4 Place a newspaper over the AE light receiving section of the copyboard and close the copyboard cover
42. ve solenoid SL2 Set the meter to the 22000 range Disconnect J902 from the copyboard drive solenoid and measure the resistance between terminals of SL2 Is it about 1200 Check the wiring from the solenoid to the DC con troller DC power supply if normal replace the DC controller DC power supply PCB Check the solenoid SL2 4 5 CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS 11 amp N paper feeding normally Cause Checks YES NO Remedies Copy paper Are there pieces of copy paper in the delivery assembly or pick up assembly YES Remove the pieces of paper Sensor lever Is the movement of the delivery sensor and pick up sensor levers smooth Correct the movement Delivery sensor PCB Q801 DC controller DC power supply PCB 12 3 at time of jam Cause Replace the delivery sensor PCB Does the copier operate normally Checks End YES NO Check the wiring from the control panel PCB to the DC controller DC power supply PCB if normal replace the DC controller DC power supply PCB Remedies Control panel PCB DC controller DC power supply PCB Replace the control panel PCB Does the indicator go ON 13 The fixing heater fails to operate Cause Checks YES YES NO Replace the DC controller DC power supply PCB Remedies Heater H1 Thermal fuse FU2 Is continuity
43. xing heater H1 and main motor M1 OFF 7 2 Power switch Copy paper inserted APPENDIX A General Timing Chart PC400 FC200 General Timing Chart A4 2 Copy paper inserted Sequence STBY INTR COPY LSTR STBY Copyboard CBRV STOP CBFW CBRV CBFW CBRV STOP Main motor M1 Document position sensor Q902 A HN 3 Copyboard drive solenoid SL2 m 4 Scanning lamp LA1 LA8 5 Fixing heater H1 6 Primary AC bias 7 Primary DC bias 240V 8 Developing AC bias 9 Developing DC bias 400V 130 to 550V 10 Transfer p 11 Pick up sensor 0131 12 Registration solenoid SL1 m m 13 Delivery sensor Q801 Cleaning mode Measurement mode A 1 PC420 430 FC220 General Timing Chart A4 2 copies Power switch ON Copy paper inserted Sec Sequence STBY INTR COPY LSTR STBY Copyboard Main motor M1 CBRV STOP CBFW CBRV CBFW CBRV STOP Document position sensor Q902 Copyboard drive solenoid SL2 Scanning lamp LA1 LA8 Fixing heater
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