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Canon FY8-13EX-000, NP6218 Points to Note When Handling the Composite Power Supply PCB, 7-20

Models: FY8-13EX-000 NP6218

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CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS

2. Points to Note When Handling the Composite Power Supply PCB

•Some capacitors used on the PCB may retain charges even when the copier remains off. For this reason, you must take care never to short the terminals of the capacitor whenever you have detached the PCB.

•Enter the settings (Nos. 315 through 318) recorded on the label attached to the composite power supply (service part) in service mode. (See p. 10-103)

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

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Canon FY8-13EX-000, NP6218 service manual Points to Note When Handling the Composite Power Supply PCB, 7-20

Contents

COPYRIGHT 1997 CANON INC SERVICE MANUALFY8-13EX-000 REVISIONCANON INC COPYRIGHT 1997 CANON INC Printed in Japan Imprimé au JaponINTRODUCTION and consumables/durables and scheduled servicing charts System Configuration CANON NP6218 REV.0 MAR. 1997 PRINTED IN JAPAN IMPRIMÉ AU JAPON 1. GENERAL DESCRIPTIONCOPYRIGHT 1997 CANON INC CONTENTS CHAPTER 1 GENERAL DESCRIPTIONCHAPTER 2 BASIC OPERATION CHAPTER 4 IMAGE FORMATION SYSTEM CHAPTER 3 EXPOSURE SYSTEMCHAPTER 5 PICK-UP/FEEDING SYSTEM viii CHAPTER 6 FIXING SYSTEMCHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS CHAPTER 8 INSTALLATIONCHAPTER 9 MAINTENANCE AND SERVICING CHAPTER 10 TROUBLESHOOTING 10.The copy has white spot APPENDIX CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER GENERAL DESCRIPTION2. Office amenities and ecology I. FEATURES4. Practical basic features 1. Multiple front loading and multifeeder for space saving2. System II. SPECIFICATIONSA. Copier 1. Type2. Remove curling before feeding for a second time 3. Features1. Use Canon-recommended paper 1 1 ±0.5% 4. OthersTable 1-201 Standard Reproduction Ratios Operating environmentTable 1-202 Copying Speed B. Cassette Feeding Module-B2/Cassette Feeding Module-A2A. Exterior View III. NAMES OF PARTS1. Body B. Cross Sectionw Cassette 2. Cassette Feeding Module-A2q Cassette r Cassette 3 pick-up rollerA. Control Panel IV. OPERATION1-10 B. Operation Mode1-11 C. Making Two-Sided/Overlay Copies manual1-12 D. User Mode1. Outline 3. Changing the Auto Clear Time Changing the Auto Power-Off Time2. Common Operations a. Keys to Use in User Mode b. Operation1-14 Zoom Fine-AdjustmentReference 1-15 Turning On and Off the Auto Cassette Change Mechanism1-16 Cleaning the Feeder with ADF installed-option1-17 Selecting the Density Adjustment Method for Standard Mode10. Initializing User Mode COPYRIGHT 1997 CANON INC 11. Quick Guide to User Mode1-18 CHAPTER 1 GENERAL DESCRIPTIONHandling the Toner Bottle VI. ROUTINE MAINTENANCE BY THE USERV. WARNINGS AND ACTIONS E. Handling the Toner Bottle1-20 VII. IMAGE FORMATIONA. Outline The NP6218 generates images in the following eight steps 1-21CANON NP6218 REV. 0 MAY. 1997 PRINTED IN JAPAN IMPRIME AU JAPON 1-22CHAPTER 1 GENERAL DESCRIPTION COPYRIGHT 1997 CANON INCCHAPTER BASIC OPERATION COPYRIGHT 1997 CANON INC I. BASIC CONSTRUCTIONA. Functional Construction CHAPTER 2 BASIC OPERATIONTransfer current B. Outline of the Electrical CircuitrySorter accessory +24VC. Basic Sequence of Operations 2 copies continuous, AE 1. Outline D. Main Motor Control Circuit2. Mechanism COPYRIGHT 1997 CANON INC E. Inputs to the DC Controller PCB1. Inputs to the DC Controller PCB 1/3 CHAPTER 2 BASIC OPERATIONCOPYRIGHT 1997 CANON INC 2. Inputs to the DC Controller PCB 2/3CHAPTER 2 BASIC OPERATION CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 3. Inputs to the DC Controller PCB 3/3CHAPTER 2 BASIC OPERATION COPYRIGHT 1997 CANON INCCOPYRIGHT 1997 CANON INC F. Outputs from the DC Controller PCB1. Outputs from the DC Controller PCB 1/3 CHAPTER 2 BASIC OPERATIONCOPYRIGHT 1997 CANON INC 2. Outputs from the DC Controller PCB 2/3CHAPTER 2 BASIC OPERATION COPYRIGHT 1997 CANON INC 3. Outputs from the DC Controller PCB 3/32-10 CHAPTER 2 BASIC OPERATIONCHAPTER 2 BASIC OPERATION G. Inputs to and Outputs from the 1-Cassette Unit Driver PCB1. Inputs to and Outputs from the 1-Cassette Unit Driver PCB 1/1 2-11CHAPTER 2 BASIC OPERATION H. Inputs to and Outputs from the 2-Cassette Unit Driver PCB1. Inputs to and Outputs from the 2-Cassette Unit Driver PCB 1/2 2-12COPYRIGHT 1997 CANON INC 2. Inputs to and Outputs from the 2-Cassette Unit Driver PCB 2/22-13 CHAPTER 2 BASIC OPERATIONCANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON 2-14CHAPTER 2 BASIC OPERATION COPYRIGHT 1997 CANON INCCHAPTER EXPOSURE SYSTEM A. Outline I. BASIC OPERATIONII. LENS DRIVE SYSTEM A. Varying the Reproduction RatioChange solenoid SL1 Lens motor M3 Lens cable CHAPTER 3 EXPOSURE SYSTEMCOPYRIGHT 1997 CANON INC 2. Driving the Lens Motor B. Lens Motor Drive Circuit1. Keeping the Lens Motor Stationary C. Basic Sequence of Operations lens drive system non-Direct 1. Outline III. SCANNING DRIVE SYSTEMA. Driving the Scanner Scanner sensor 2. Relationship between the Scanner Sensor and Signals3. Basic Sequence of Operations scanner Referenceb. Mechanism 4. Driving the Scanner Motor a. OutlinePage 1. Detaching the Scanner Drive Motor IV. DISASSEMBLY AND ASSEMBLYA. Scanner Drive Assembly 3-10 2. Detaching the Scanner Cablefront 3-113-12 3. Assembling the Mirror Position Tool3-13 4. Routing the Scanner Cable5 Tighten the screw loosened in e, and fix the cable to the left stay 3-14Hook 3-15Hook Wirespring Wirespring3-16 3-17 6. Cleaning the Scanner No. 6 Mirror3-18 B. Lens Drive Assembly1. Detaching the Lens Drive Motor 6 Disconnect the two connectors y from the copier’s rear 3-19CHAPTER 3 EXPOSURE SYSTEM Figure 3-421 Lens Drive Assembly2. Routing the Lens Cable 3-20A B 3. Adjusting the Position of the Change Solenoid3-21 CANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON 3-22CHAPTER 3 EXPOSURE SYSTEM COPYRIGHT 1997 CANON INCCHAPTER IMAGE FORMATION SYSTEM A. Outline I. PROCESSESComposite Power Supply PCB DC controller PCB COPYRIGHT 1997 CANON INC CHAPTER 4 IMAGE FORMATION SYSTEMCHAPTER 4 IMAGE FORMATION SYSTEM B. Basic Sequence of Operations image formation system1 AE only 2 half pre-heating control 3 full pre-heating control 4 ON pre-heating control1. Outline C. Controlling the Scanning Lamp3. Pre-Heating Control scanning lamp 2. Turning On and Off the Scanning LampInput Signals from the DC Controller to the Composite Power Supply PCB 5. Controlling the Intensity of the Scanning Lamp FL1 6. Controlling the Fluorescent Lamp Heater Reference 7. Fluorescent Lamp Automatic8. Fluorescent Lamp Protection Mechanism Correction Control ALVC controldrive circuit D. Controlling the Primary Charging Roller Bias4-10 1. Outline4-11 2. Turning On and Off the Primary Charging Roller Bias3. Controlling the Primary Charging Roller Bias to a Constant Voltage 4-12 c. Reference Bias ATVC b. Cleaning BiasE. Controlling the Transfer Roller Bias a. Transfer Biasturns on and off the transfer roller bias 4-145. Current Limiter Circuit transfer bias 6. Current Limiter Circuit cleaning bias2. Turning On and Off the Transfer Roller Bias 3. Controlling the Transfer Bias to a Constant Voltage1. Outline F. Controlling the Static Eliminator Bias4-16 4-17 2. Switching the Static Eliminator Bias Voltage Level3. Ensuring Proper Separation of Thin Paper Blanking shutter home position sensor PS3 G. Controlling Blank Exposure4-18 1. Outline4-19 2. Blanking Whiting of Non-Image Areas for Reduction3. Blanking Whiting Out the Leading/Trailing Edges and between Copies Fulcrum Fulcrum Cleaning pad H. Controlling the Primary Corona Roller Cleaning Mechanism2. Primary Charging Roller Cleaning Operation 4-201. Outline I. Releasing the Transfer Roller4-21 Toner container II. DEVELOPING ASSEMBLY AND CLEANING ASSEMBLY4-22 A. Outline4-23 B. Controlling the Toner Level Detectionq When the Level of Toner Is Adequate 4-241. Outline C. Controlling the Development Bias4-25 4-26 3. Turning On and Off the AC Component of the Development Bias1. Outline D. Automatic Control of Copy Density2. Control Method 4-27COPYRIGHT 1997 CANON INC Figure 4-207 Area Read by the AE Sensor Reference4-28 CHAPTER 4 IMAGE FORMATION SYSTEMcopy density development bias slope adjustment No. 303 during AE mode 3. AE Adjustment4-29 lamp intensity automatic adjustment No. 301 during AE scans4-30 III. DISASSEMBLY AND ASSEMBLYA. Illumination Assembly 1. Detaching the Scanning Lamp/Fluorescent Lamp HeaterCOPYRIGHT 1997 CANON INC u yt4-31 CHAPTER 4 IMAGE FORMATION SYSTEM60mm 1~5mm60mm 4-324-33 Figure 4-306 front viewReference 3. Detaching the Blank Exposure Assembly4-34 COPYRIGHT 1997 CANON INC 4. Detaching the Blank Exposure Lamp4-35 CHAPTER 4 IMAGE FORMATION SYSTEM4-36 5. Detaching the Blank Shutter Solenoid4-37 6. Positioning the Blank Shutter SolenoidFigure 4-314a Figure 4-314b4-38 7. Routing the Blanking Cable8. Positioning the Left/Right Margin CHAPTER 4 IMAGE FORMATION SYSTEM B. Drum Unit1. Detaching the Drum Unit 4-394-40 2. Cleaning4-41 C. Primary Corona Assembly1. Detaching the Primary Corona Assembly 4-42 2. Cleaning the Cleaning Pad and the Primary Corona Roller4-43 3. Positioning the Solenoid for the Primary Charging Roller4-44 D. Transfer Charging Assembly1. Detaching the Transfer Roller 2. Attaching the Drum Heater5 Detach the transfer roller and the static eliminator 4-45COPYRIGHT 1997 CANON INC 4-469 Connect the connector y as shown in Figure CHAPTER 4 IMAGE FORMATION SYSTEM4-47 1. Removing the Developing Assembly2. Removing the Blade Assembly E. Developing System4-48 3. Removing the Developing Cylinder Side SealCHAPTER 4 IMAGE FORMATION SYSTEM t r e y ei o !0 4-49CHAPTER 4 IMAGE FORMATION SYSTEM 4-506 Remove the screw !1, and remove the butting roll !2and roll case !3 7 Remove the developing cylinder !4COPYRIGHT 1997 CANON INC 4. Installing the Side Seal and the Blade Assembly4-51 CHAPTER 4 IMAGE FORMATION SYSTEMCOPYRIGHT 1997 CANON INC 4-523 Check that the side seal and the container are in firm contact CHAPTER 4 IMAGE FORMATION SYSTEMCHAPTER PICK-UP/FEEDING SYSTEM PS3cu I. PICK-UP/FEEDING SYSTEMA. Outline MultifeederSensor No A. Outline II. PICK-UP OPERATION COPIERCANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON B. Sequence of Operations pick-up/feeding assembly A4, 2 copiesCHAPTER 5 PICK-UP/FEEDING SYSTEM COPYRIGHT 1997 CANON INCA. Pick-Up Operation III. PICK-UP FROM THE CASSETTE FEEDING MODULE-A2STBY B. Sequence of Operations cassette 2 A4, 2 copiesCHAPTER 5 PICK-UP/FEEDING SYSTEM COPYRIGHT 1997 CANON INCA. Outline IV. MULTIFEEDERReference B. Identifying the Size of Paper on the MultifeederCANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON C. Sequence of Operations multifeeder A4, 2 copiesCHAPTER 5 PICK-UP/FEEDING SYSTEM COPYRIGHT 1997 CANON INC5-10 V. IDENTIFYING THE CASSETTE SIZEGuide plate horizontal Paper size lever Guide plate vertical 5-11Reference 5-12 VI. IDENTIFYING JAMSA. Pre-Registration Delay Jam Figure 5-601 Pre-Registration Delay Jam SequenceFigure 5-603 Pre-Registration Stationary Jam Sequence B. Pre-Registration Timing JamC. Pre-Registration Stationary Jam Figure 5-602 Pre-Registration Timing Jam SequenceFigure 5-605 Separation Stationary Jam Sequence D. Separation Delay JamE. Separation Stationary Jam Figure 5-604 Separation Delay Jam SequenceFigure 5-607 Delivery Stationary Jam Sequence F. Delivery Delay JamG. Delivery Stationary Jam Figure 5-606 Delivery Delay Jam Sequence5-16 VII. DISASSEMBLY AND ASSEMBLYA. Pick-Up Assembly 1. Detaching the Pick-Up Roller Unit3 Open the lower right cover 5-176 Push in the bushing t at the rear toward the front, and lower the spring pressure to remove the pick-up unit toward the left of the copier 5-185-19 2. Detaching the Pick-Up Roller5-20 3. Points to Note When Attaching the Pick-Up Roller4. Detaching the Pick-Up Clutch COPYRIGHT 1997 CANON INC 5. Detaching the Separation Pad5-21 CHAPTER 5 PICK-UP/FEEDING SYSTEM5-22 6. Adjusting the Left/Right Registrationa. Pick-Up from the Cassette CHAPTER 5 PICK-UP/FEEDING SYSTEM B. Multifeeder Assembly1. Detaching the Multifeeder Assembly 5-23CHAPTER 5 PICK-UP/FEEDING SYSTEM 2. Detaching the Multifeeder Pick-Up Roller Unitq w e 5-245-25 3. Detaching the Multifeeder Pick-Up Roller5. Detaching the Separation Pad 4. Points to Keep Note When Attaching the Multifeeder Pick-Up Roller5-26 w on the collar is toward the rear5-27 6. Detaching the Multifeeder Drive Unit5-28 7. Detaching the Multifeeder Clutch5-29 8. Positioning the Multifeeder Assembly paper guide plate cam5-30 9. Adjusting the Left/Right Registration10. Points to Note When Attaching the Multifeeder Assembly Rack Plate 5-31 C. Registration Roller Assembly1. Detaching the Registration Clutch 2. Detaching the Upper Registration RollerCHAPTER 5 PICK-UP/FEEDING SYSTEM 5-32Take care not to misplace the springs front, rear 3 Lift the upper registration roller e to detach5-33 3. Detaching the Lower Registration Roller5-34 D. Feeding Assembly1. Detaching the Feeding Belt CHAPTER 5 PICK-UP/FEEDING SYSTEM 5-355 Detach the static eliminator 6 Detach the feeding spacer t from the hook arrow3. Detaching the Pick-Up Clutch E. Cassette Feeding Module1. Detaching the Copier from the Cassette Feeding Module 2. Detaching/Attaching the Pick-Up RollerCHAPTER FIXING SYSTEM A. Outline I. BASIC OPERATIONSCOPYRIGHT 1997 CANON INC CHAPTER 6 FIXING SYSTEMB. Controlling the Fixing Heater Temperature CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON ReferenceCHAPTER 6 FIXING SYSTEM COPYRIGHT 1997 CANON INCHTRD Supply power to heater C. Controlling the Supply Power for the Fixing Heater2. Thermal Fuse FU1 D. Detecting Overheating at the End of the Fixing HeaterE. Protection Mechanism 1. Thermistor TH1, TH2Fixing film F. Correcting Displacement of the Fixing Film1. Outline ReferenceNormal ON OFF rear ON OFF ON front OFF unit mm Fixing film rear front Tension roller OFF Drive roller ONFixing belt motor M4 Tension roller rear view displacement to the rear displacement to the front6-10 2. Controlling the Fixing Film Motor6-11 II. DISASSEMBLY AND ASSEMBLYA. Fixing Assembly 1. Construction1COPYRIGHT 1997 CANON INC 2. Detaching the Upper Fixing Unit6-12 CHAPTER 6 FIXING SYSTEM6-13 COPYRIGHT 1997 CANON INC er t6-14 CHAPTER 6 FIXING SYSTEMCHAPTER 6 FIXING SYSTEM y u ti o!0 6-15CHAPTER 6 FIXING SYSTEM 6-169 Pull out the fixing film !2toward the front 10 Detach the tension roller !3CHAPTER 6 FIXING SYSTEM 6-1711 Remove the screw !4, and detach the fixing film sensor !5 12 Remove the E-ring !6CHAPTER 6 FIXING SYSTEM 9 !8 !7@2 @1 6-1816 Remove the two screws @3, and detach the fixing film motor unit @4 6-196-20 4. Points to Note When Attaching the Fixing Film5. Points to Note When Attaching the Heater Connector 6-21 6. Points to Note When Replacing the Fixing Upper Unit7. Adjusting the Fixing Film Drive Roller Pressure Figure 6-220 rear viewThe copier enters fixing tension roller mode 6-226-23 8. Detaching the Lower Fixing Unit6-24 6-25 10. Adjusting the Lower Fixing Roller NipReference a. Measuring the Nip6-26 COPYRIGHT 1997 CANON INC B. Delivery Assembly6-27 CHAPTER 6 FIXING SYSTEMCANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON 6-28CHAPTER 6 FIXING SYSTEM COPYRIGHT 1997 CANON INCEXTERNALS/AUXILIARY MECHANISMS CHAPTERCOPYRIGHT 1997 CANON INC I. POWER SUPPLYA. Outline CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMSReference B. Power Supply Circuit AssemblyCANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMSCOPYRIGHT 1997 CANON INC 4. Overcurrent in the Low-voltage Power Supply C. Detecting Errors in the Power Supply PCB2. Error in the High-Voltage Output Data 3. Low-Voltage Output Data ErrorD. Protection Mechanisms for the Power Supply Circuit II. DISASSEMBLY AND ASSEMBLY A. External Coverscover CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMSCOPYRIGHT 1997 CANON INC 1. Detaching the Control Panel B. Control Panel7-10 C. Fans1. Detaching the Exhaust Fan 7-11 D. Main Motor/Main Drive Assembly2. Detaching the Main Drive Assembly 1. Detaching the Main Motor Unit9 Turn the pulley i clockwise, and detach the belt o 7-127-13 3. Routing the Drive BeltCHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS E. Cassette unit1. Detaching the Pick-Up Drive Unit 7-147-15 r y r t t r2. Detaching the Cassette Motor q e w qCOPYRIGHT 1997 CANON INC 3. Detaching the Cassette Driver PCB7-16 CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS7-17 2. Points to Note When Replacing the DC Controller PCBF. DC Controller PCB 1. Detaching the DC Controller PCB7-18 G. Composite Power Supply PCB1. Detaching the Composite Power Supply PCB 6 Remove the three screws !0, and detach the power cord mount !1 7-197-20 2. Points to Note When Handling the Composite Power Supply PCBI. Intensity Sensor PCB 1. Points to Note When Replacing the AE Sensor1. Points to Note When Replacing the Intensity Sensor H. AE Sensor PCBCANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON 7-22CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS COPYRIGHT 1997 CANON INCCHAPTER INSTALLATION I. SELECTING THE SITE A. Unpacking and Removing Fixings II. UNPACKING AND INSTALLING THE COPIERStep Step B. Turning On the Copier Step Step C. Checking the Images and Operations Check/Remarks D. Attaching the Drum Unit8-10 E. Changing the Cassette SizeR A4 8-11A5 R A4 8-12 Direct position refers to III. RELOCATING THE COPIER8-13 Go through the following when replacing the drum unit IV. REPLACING THE DRUM UNIT8-14 Step 8-15Step 8-168-17 V. INSTALLING THE CONTROL CARD IV NCHAPTER 8 INSTALLATION 8-1810 Disconnect the copier’s dummy connector r 11 Connect the connector t of the Control Card IV NCHAPTER 8 INSTALLATION VI. CASSETTE HEATER KIT 5 INSTALLATION PROCE- DUREA. Unpacking 8-198-20 B. Installation to a Cassette Feeding Module-A2/B2Screws 8-216 Close the cover 8-22Cassette Feeding Module-B2 8-23Copiers connector Molded member Copiers base plate CHAPTER 8 INSTALLATIONRelay harness 8-24CHAPTER 8 INSTALLATION 8-2512 Install the rear cover of the cassette pedestal and all covers 13 Install the copier’s rear covery *Not used u *Not used VII. INSTALLING THE REMOTE DIAGNOSTIC DEVICE8-26 A. Unpacking8-27 B. Installation to the Copier4 Connect the cable o on the copier side and the RDD’s cable 8-28COPYRIGHT 1997 CANON INC 8-29CHAPTER 8 INSTALLATION Modular Jack on the Right1. If the ROM IC6 !2 is not mounted, you need not mount it 8-30CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 8-31CHAPTER 8 INSTALLATION COPYRIGHT 1997 CANON INCLED1 LED2 LED3 8-32SW2-2 8-3311 Reset the RDD’s RAM SW2-112 After making sure that LED5 !8red has come on, set the bits on the DIP switch 2 !6on the RDD’s PCB as indicated in the table, and press the push switch 4 !7to make sure that LED5 !8red goes out, indicating that the RAM has been reset 8-3413 Shift bit 6 of the DIP switch 2 !9on the RDD’s PCB to OFF 8-35service station 8-36normally 8-37w @7 q w 8-38CHAPTER MAINTENANCE AND SERVICING A. Periodically Replaced Parts I. PERIODICALLY REPLACED PARTSLower fixing separation claw II. DURABLESA. Copier B. Cassette Feeding Module-B2/Cassette Feeding Module-A2 Perform work according to the number III. PERIODICAL SERVICINGDo not use solvents or oils other than those specified IV. SERVICING CHARTclean replace lubricate adjust inspector clean Otherwise, dispose of it as nonflammable material V. NOTES ON DRUM KITDo NOT throw the drum kits into fire it can burst or explode CHAPTER TROUBLESHOOTING 10-1 Guide to Troubleshooting TablesCANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON 10-2CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INCCOPYRIGHT 1997 CANON INC I MAINTENANCE AND INSPECTIONA. Image Adjustment Basic Procedure 10-3CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON B. Periodical Servicing10-4 COPYRIGHT 1997 CANON INC10-5 II. STANDARDS AND ADJUSTMENTSA. Image Adjustment 2.0±1.0mm 10-6Reference 2.5± 1.5mm 10-710-8 4. Adjusting the Left/Right RegistrationShutter 5. Adjusting the Left/Right Margin No. 311 left/right margin10-9 Adjust the distance between the two shutters in the blanking assemblyReference 6. Adjusting the Scanning Lamp Intensity10-10 positioning10-11 7. AE AdjustmentVR391 Figure 10-210 DC Controller PCB10-12 2 Press 2 on the keypad The copier indicates ‘302’ 10-13causes the AE copies 10-14After adjustment with service mode causes10-15 B. Exposure System1. Routing the Scanner Drive Cable 10-16 Position B Longest pin 3. Adjusting the Scanner Cable Tension4. Assembling the Mirror Positioning Tool 10-1760mm 10-18CHAPTER 10 TROUBLESHOOTING 1~5mmReference Figure 10-220 front view10-19 10-20 6. Positioning the Change SolenoidFigure 10-223b C. Image Formation System1. Positioning the Blank Shutter Solenoid Figure 10-223aAttach the spring to the outside of the sides shutter 2. Routing the Blank Shutter Cable10-22 3. Positioning the Solenoid for the Primary Charging Roller10-23 4. After Replacing the Drum Unit5. Attaching the Drum Heater 9 Connect the connector y as shown in Figure 10-2410-25 D. Pick-Up/Feeding System1. Orientation of the Pick-Up Roller 2. Orientation of the Multifeeder Pick-Up Roller10-26 3. Positioning the Paper Guide Plate Cam multifeeder10-27 2. Points to Note When Attaching the Heater ConnectorE. Fixing System 10-28 3. Adjusting the Fixing Film Drive Roller PressureFigure 10-236 rear view 10-29 4. Points to Note after Replacing the Fixing Upper UnitReference 5. Adjusting the Nip10-30 10-31 6. Routing the Drive Belt7. Storing the Fixing Heater Resistance 8-1 When Replacing the Fixing Upper Unit 8. Setting the Fixing Heater Temperature Control ValueFigure 10-240 Heater Stay Side Plate rear 10-3210-33 Example10 Enter ‘4’ using the keypad, and set the copy count 10-3410-35 F. Electrical1. After Replacing the PCB 2. Clearing the Back-Up RAMReference 3. Checking the Photointerrupters10-36 Referenceby hand while 10-37Service mode a. CopierService mode 10-38b. Cassette Feeding Unit 10-39Name 10-40Name 10-41Name 10-42Reference 4. Adjusting the Multifeeder Paper Width Sensor10-43 Clear Clears settingsGovernment-R 5. Setting the Paper Size for the Universal Cassette10-44 2. Checking the Originals III. TROUBLESHOOTING IMAGE FAULTSA. Initial Checks 1. Site Environment10-46 5. OthersCANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON 10-47CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INCCOPYRIGHT 1997 CANON INC B. SAMPLES OF IMAGE FAULTS10-48 CHAPTER 10 TROUBLESHOOTING10-49 C. Troubleshooting Faulty Images1. The copy is too light half-tone only 10-50 2. The copy is too light black solid also3. The copy is too light overall, extremely Cause 10-5110-52 4. The copy has uneven density front too dark5. The copy has uneven density front too light 10-53 6. The copy is foggy overall10-54 7. The copy is foggy vertical8. The copy has black lines vertical thick fuzzy lines 9. The copy has black lines vertical, fine10-55 10. The copy has white spot vertical11. The copy has white lines vertical 10-56 12. The copy has white spots horizontal10-57 13. The back of the copy is soiled10-58 14. The copy has a fixing fault15, 16, 17 The leading edge of the copy is displaced 10-59 18. The copy has a blurred imageDeveloping assembly spacer 19. The copy is foggy horizontal10-60 10-61 20. The copy has poor sharpness10-62 21. The copy is blank22. The copy is solid black 10-63 IV. TROUBLESHOOTING MALFUNCTIONSA. Troubleshooting Malfunctions E00010-64 E001E002, E003 10-65 E004E007 10-66 E010E030 10-67 E0649. E202 keys on control panel invalidated 10-68 10. E21011. E220 12. E24010-69 13. E26114. E710, E711, E712, E717 15. E80310-70 16. AC power supply is absentPin No 17. DC power supply is absent10-71 Connector10-72 18. The blank shutter fails to move19. The photosensitive drum fails to rotate 10-73 20. The pick-up operation fails from cassette21. The pick-up operation from the multifeeder fails 10-74 22. The scanner fails to move forward/in reverse23. The registration roller fails to rotate 10-75 24. The scanning lamp fails to turn on25. The lens fails to move 10-76 28. The add paper indicator fails to turn off26. The fixing heater fails to operate 27. The pre-exposure lamp fails to turn on10-77 29 The jam message fails to turn off10-78 V. TROUBLESHOOTING FEEDING PROBLEMSA. Jams copy paper 10-79 1. Pick-Up AssemblyDelivery 2. Separation/Feeding AssemblyFixing/Delivery Assembly 10-81 B. Feeding Faults1. Double feeding 2. WrinklingCHAPTER 10 TROUBLESHOOTING VI ARRANGEMENT/FUNCTIONS OF THE ELECTRICAL PARTSA. Sensors 10-8210-83 COPYRIGHT 1997 CANON INC B. Clutches, Solenoids, and Switches10-84 CHAPTER 10 TROUBLESHOOTING10-85 COPYRIGHT 1997 CANON INC C. Motors, Heaters, and Lamps10-86 CHAPTER 10 TROUBLESHOOTING10-87 COPYRIGHT 1997 CANON INC D. PCBs10-88 CHAPTER 10 TROUBLESHOOTINGName 10-89COPYRIGHT 1997 CANON INC E. Cassette Feeding Module - A210-90 CHAPTER 10 TROUBLESHOOTINGPhotointerrupter 10-9110-92 F. Variable Resistors VR and Check Pins by PCB1. DC controller PCB COPYRIGHT 1997 CANON INC 2. Composite power supply PCB10-93 CHAPTER 10 TROUBLESHOOTING10-94 VII. SERVICE MODEB. Using Service Mode 1. Activating Service Mode6. Clearing Stored Error Code 2. Selecting a Service Mode4. Using Adjustment Mode 3 and Specification Mode 5. Using Operation/Inspection Mode10-96 7. Recording on the Service Mode Label10-97 C. Control Display ModeNo. 101 Jam Location Indicator 10-98To clear an item, press the Clear key D. I/O Mode10-99 Press 2 on the keypad and the AE key to activate I/O display modeNo. 201/202/203/204 Port C Digital Display 10-100LED copy count indicator from 201 to Port H Display 10-101right face in page separation timing E. Adjustment Mode10-102 Leading edge margin adjustment forDescription 10-103Description 10-10410-105 F. Operation/Inspection ModeDescription 10-10610-107 G. Specification Settings Mode10-108 H. Counter ModeVIII. SELF DIAGNOSIS A. Copier E000E001 E002E010 E003E004 E007E261 E210E220 E240Clearing an Error Code back-up data 10-112E411 E400E402 E404E510 C. Self Diagnosis sorter10-114 E500When an E code is indicated 10-115CANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON 10-116CHAPTER 10 TROUBLESHOOTING COPYRIGHT 1997 CANON INCAPPENDIX A4, 2 copies, Direct, from copier cassette A. GENERAL TIMING CHART1. Signals and Abbreviations B. SIGNALS AND ABBREVIATIONSCANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON C. GENERAL CIRCUIT DIAGRAMCOPYRIGHT 1997 CANON INC CANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON COPYRIGHT 1997 CANON INCD. SPECIAL TOOLS E. SOLVENTS/OILS 5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302 Japan Prepared byCANON INC Printed in Japan REVISION 0 MAY 1997 0797S0.7-2 This publication is printed on 70% reprocessed paperPRINTED IN JAPAN IMPRIMÉ AU JAPON