COPYRIGHT 1997 CANON INC
SERVICE MANUAL
FY8-13EX-000
REVISION
CANON INC
COPYRIGHT 1997 CANON INC Printed in Japan Imprimé au Japon
INTRODUCTION
and consumables/durables and scheduled servicing charts
System Configuration
1. GENERAL DESCRIPTION
COPYRIGHT 1997 CANON INC
CANON NP6218 REV.0 MAR. 1997 PRINTED IN JAPAN IMPRIMÉ AU JAPON
CHAPTER 1 GENERAL DESCRIPTION
CHAPTER 2 BASIC OPERATION
CONTENTS
CHAPTER 4 IMAGE FORMATION SYSTEM
CHAPTER 3 EXPOSURE SYSTEM
CHAPTER 5 PICK-UP/FEEDING SYSTEM
viii
CHAPTER 6 FIXING SYSTEM
CHAPTER 8 INSTALLATION
CHAPTER 9 MAINTENANCE AND SERVICING
CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS
CHAPTER 10 TROUBLESHOOTING
10.The copy has white spot
APPENDIX
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON
CHAPTER GENERAL DESCRIPTION
2. Office amenities and ecology
I. FEATURES
4. Practical basic features
1. Multiple front loading and multifeeder for space saving
2. System
II. SPECIFICATIONS
A. Copier
1. Type
3. Features
1. Use Canon-recommended paper
2. Remove curling before feeding for a second time
1 1 ±0.5%
4. Others
Table 1-201 Standard Reproduction Ratios
Operating environment
Table 1-202 Copying Speed
B. Cassette Feeding Module-B2/Cassette Feeding Module-A2
A. Exterior View
III. NAMES OF PARTS
1. Body
B. Cross Section
w Cassette
2. Cassette Feeding Module-A2
q Cassette
r Cassette 3 pick-up roller
A. Control Panel
IV. OPERATION
1-10
B. Operation Mode
1-11
C. Making Two-Sided/Overlay Copies manual
D. User Mode
1. Outline
1-12
3. Changing the Auto Clear Time
2. Common Operations a. Keys to Use in User Mode
Changing the Auto Power-Off Time
b. Operation
Zoom Fine-Adjustment
Reference
1-14
1-15
Turning On and Off the Auto Cassette Change Mechanism
1-16
Cleaning the Feeder with ADF installed-option
Selecting the Density Adjustment Method for Standard Mode
10. Initializing User Mode
1-17
COPYRIGHT 1997 CANON INC
11. Quick Guide to User Mode
1-18
CHAPTER 1 GENERAL DESCRIPTION
Handling the Toner Bottle
VI. ROUTINE MAINTENANCE BY THE USER
V. WARNINGS AND ACTIONS
E. Handling the Toner Bottle
VII. IMAGE FORMATION
A. Outline
1-20
The NP6218 generates images in the following eight steps
1-21
CANON NP6218 REV. 0 MAY. 1997 PRINTED IN JAPAN IMPRIME AU JAPON
1-22
CHAPTER 1 GENERAL DESCRIPTION
COPYRIGHT 1997 CANON INC
CHAPTER BASIC OPERATION
COPYRIGHT 1997 CANON INC
I. BASIC CONSTRUCTION
A. Functional Construction
CHAPTER 2 BASIC OPERATION
Transfer current
B. Outline of the Electrical Circuitry
Sorter accessory
+24V
C. Basic Sequence of Operations 2 copies continuous, AE
D. Main Motor Control Circuit
2. Mechanism
1. Outline
COPYRIGHT 1997 CANON INC
E. Inputs to the DC Controller PCB
1. Inputs to the DC Controller PCB 1/3
CHAPTER 2 BASIC OPERATION
2. Inputs to the DC Controller PCB 2/3
CHAPTER 2 BASIC OPERATION
COPYRIGHT 1997 CANON INC
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON
3. Inputs to the DC Controller PCB 3/3
CHAPTER 2 BASIC OPERATION
COPYRIGHT 1997 CANON INC
COPYRIGHT 1997 CANON INC
F. Outputs from the DC Controller PCB
1. Outputs from the DC Controller PCB 1/3
CHAPTER 2 BASIC OPERATION
2. Outputs from the DC Controller PCB 2/3
CHAPTER 2 BASIC OPERATION
COPYRIGHT 1997 CANON INC
COPYRIGHT 1997 CANON INC
3. Outputs from the DC Controller PCB 3/3
2-10
CHAPTER 2 BASIC OPERATION
CHAPTER 2 BASIC OPERATION
G. Inputs to and Outputs from the 1-Cassette Unit Driver PCB
1. Inputs to and Outputs from the 1-Cassette Unit Driver PCB 1/1
2-11
CHAPTER 2 BASIC OPERATION
H. Inputs to and Outputs from the 2-Cassette Unit Driver PCB
1. Inputs to and Outputs from the 2-Cassette Unit Driver PCB 1/2
2-12
COPYRIGHT 1997 CANON INC
2. Inputs to and Outputs from the 2-Cassette Unit Driver PCB 2/2
2-13
CHAPTER 2 BASIC OPERATION
CANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON
2-14
CHAPTER 2 BASIC OPERATION
COPYRIGHT 1997 CANON INC
CHAPTER EXPOSURE SYSTEM
A. Outline
I. BASIC OPERATION
II. LENS DRIVE SYSTEM
A. Varying the Reproduction Ratio
CHAPTER 3 EXPOSURE SYSTEM
COPYRIGHT 1997 CANON INC
Change solenoid SL1 Lens motor M3 Lens cable
B. Lens Motor Drive Circuit
1. Keeping the Lens Motor Stationary
2. Driving the Lens Motor
C. Basic Sequence of Operations lens drive system non-Direct
III. SCANNING DRIVE SYSTEM
A. Driving the Scanner
1. Outline
Scanner sensor
2. Relationship between the Scanner Sensor and Signals
3. Basic Sequence of Operations scanner
Reference
b. Mechanism
4. Driving the Scanner Motor a. Outline
Page
IV. DISASSEMBLY AND ASSEMBLY
A. Scanner Drive Assembly
1. Detaching the Scanner Drive Motor
3-10
2. Detaching the Scanner Cable
front
3-11
3-12
3. Assembling the Mirror Position Tool
3-13
4. Routing the Scanner Cable
5 Tighten the screw loosened in e, and fix the cable to the left stay
3-14
Hook
3-15
Hook Wirespring
Wirespring
3-16
3-17
6. Cleaning the Scanner No. 6 Mirror
B. Lens Drive Assembly
1. Detaching the Lens Drive Motor
3-18
6 Disconnect the two connectors y from the copier’s rear
3-19
CHAPTER 3 EXPOSURE SYSTEM
Figure 3-421 Lens Drive Assembly
2. Routing the Lens Cable
3-20
3. Adjusting the Position of the Change Solenoid
3-21
A B
CANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON
3-22
CHAPTER 3 EXPOSURE SYSTEM
COPYRIGHT 1997 CANON INC
CHAPTER IMAGE FORMATION SYSTEM
I. PROCESSES
Composite Power Supply PCB DC controller PCB
A. Outline
COPYRIGHT 1997 CANON INC
CHAPTER 4 IMAGE FORMATION SYSTEM
CHAPTER 4 IMAGE FORMATION SYSTEM
B. Basic Sequence of Operations image formation system
1 AE only 2 half pre-heating control 3 full pre-heating control
4 ON pre-heating control
1. Outline
C. Controlling the Scanning Lamp
3. Pre-Heating Control scanning lamp
2. Turning On and Off the Scanning Lamp
Input 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 Automatic
8. Fluorescent Lamp Protection Mechanism
Correction Control ALVC control
drive circuit
D. Controlling the Primary Charging Roller Bias
4-10
1. Outline
2. Turning On and Off the Primary Charging Roller Bias
3. Controlling the Primary Charging Roller Bias to a Constant Voltage
4-11
4-12
c. Reference Bias ATVC
b. Cleaning Bias
E. Controlling the Transfer Roller Bias
a. Transfer Bias
turns on and off the transfer roller bias
4-14
5. Current Limiter Circuit transfer bias
6. Current Limiter Circuit cleaning bias
2. Turning On and Off the Transfer Roller Bias
3. Controlling the Transfer Bias to a Constant Voltage
F. Controlling the Static Eliminator Bias
4-16
1. Outline
2. Switching the Static Eliminator Bias Voltage Level
3. Ensuring Proper Separation of Thin Paper
4-17
Blanking shutter home position sensor PS3
G. Controlling Blank Exposure
4-18
1. Outline
2. Blanking Whiting of Non-Image Areas for Reduction
3. Blanking Whiting Out the Leading/Trailing Edges and between Copies
4-19
Fulcrum Fulcrum Cleaning pad
H. Controlling the Primary Corona Roller Cleaning Mechanism
2. Primary Charging Roller Cleaning Operation
4-20
I. Releasing the Transfer Roller
4-21
1. Outline
Toner container
II. DEVELOPING ASSEMBLY AND CLEANING ASSEMBLY
4-22
A. Outline
4-23
B. Controlling the Toner Level Detection
q When the Level of Toner Is Adequate
4-24
C. Controlling the Development Bias
4-25
1. Outline
4-26
3. Turning On and Off the AC Component of the Development Bias
1. Outline
D. Automatic Control of Copy Density
2. Control Method
4-27
COPYRIGHT 1997 CANON INC
Figure 4-207 Area Read by the AE Sensor Reference
4-28
CHAPTER 4 IMAGE FORMATION SYSTEM
copy density development bias slope adjustment No. 303 during AE mode
3. AE Adjustment
4-29
lamp intensity automatic adjustment No. 301 during AE scans
4-30
III. DISASSEMBLY AND ASSEMBLY
A. Illumination Assembly
1. Detaching the Scanning Lamp/Fluorescent Lamp Heater
COPYRIGHT 1997 CANON INC
u yt
4-31
CHAPTER 4 IMAGE FORMATION SYSTEM
60mm
1~5mm
60mm
4-32
4-33
Figure 4-306 front view
3. Detaching the Blank Exposure Assembly
4-34
Reference
COPYRIGHT 1997 CANON INC
4. Detaching the Blank Exposure Lamp
4-35
CHAPTER 4 IMAGE FORMATION SYSTEM
4-36
5. Detaching the Blank Shutter Solenoid
4-37
6. Positioning the Blank Shutter Solenoid
Figure 4-314a
Figure 4-314b
7. Routing the Blanking Cable
8. Positioning the Left/Right Margin
4-38
CHAPTER 4 IMAGE FORMATION SYSTEM
B. Drum Unit
1. Detaching the Drum Unit
4-39
4-40
2. Cleaning
C. Primary Corona Assembly
1. Detaching the Primary Corona Assembly
4-41
4-42
2. Cleaning the Cleaning Pad and the Primary Corona Roller
4-43
3. Positioning the Solenoid for the Primary Charging Roller
4-44
D. Transfer Charging Assembly
1. Detaching the Transfer Roller
2. Attaching the Drum Heater
5 Detach the transfer roller and the static eliminator
4-45
COPYRIGHT 1997 CANON INC
4-46
9 Connect the connector y as shown in Figure
CHAPTER 4 IMAGE FORMATION SYSTEM
4-47
1. Removing the Developing Assembly
2. Removing the Blade Assembly
E. Developing System
4-48
3. Removing the Developing Cylinder Side Seal
CHAPTER 4 IMAGE FORMATION SYSTEM
t r e y e
i o !0
4-49
CHAPTER 4 IMAGE FORMATION SYSTEM
4-50
6 Remove the screw !1, and remove the butting roll !2and roll case !3
7 Remove the developing cylinder !4
COPYRIGHT 1997 CANON INC
4. Installing the Side Seal and the Blade Assembly
4-51
CHAPTER 4 IMAGE FORMATION SYSTEM
COPYRIGHT 1997 CANON INC
4-52
3 Check that the side seal and the container are in firm contact
CHAPTER 4 IMAGE FORMATION SYSTEM
CHAPTER PICK-UP/FEEDING SYSTEM
PS3cu
I. PICK-UP/FEEDING SYSTEM
A. Outline
Multifeeder
Sensor No
A. Outline
II. PICK-UP OPERATION COPIER
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON
B. Sequence of Operations pick-up/feeding assembly A4, 2 copies
CHAPTER 5 PICK-UP/FEEDING SYSTEM
COPYRIGHT 1997 CANON INC
A. Pick-Up Operation
III. PICK-UP FROM THE CASSETTE FEEDING MODULE-A2
STBY
B. Sequence of Operations cassette 2 A4, 2 copies
CHAPTER 5 PICK-UP/FEEDING SYSTEM
COPYRIGHT 1997 CANON INC
A. Outline
IV. MULTIFEEDER
Reference
B. Identifying the Size of Paper on the Multifeeder
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON
C. Sequence of Operations multifeeder A4, 2 copies
CHAPTER 5 PICK-UP/FEEDING SYSTEM
COPYRIGHT 1997 CANON INC
5-10
V. IDENTIFYING THE CASSETTE SIZE
5-11
Reference
Guide plate horizontal Paper size lever Guide plate vertical
5-12
A. Pre-Registration Delay Jam
Figure 5-601 Pre-Registration Delay Jam Sequence
VI. IDENTIFYING JAMS
Figure 5-603 Pre-Registration Stationary Jam Sequence
B. Pre-Registration Timing Jam
C. Pre-Registration Stationary Jam
Figure 5-602 Pre-Registration Timing Jam Sequence
Figure 5-605 Separation Stationary Jam Sequence
D. Separation Delay Jam
Figure 5-604 Separation Delay Jam Sequence
E. Separation Stationary Jam
Figure 5-607 Delivery Stationary Jam Sequence
F. Delivery Delay Jam
Figure 5-606 Delivery Delay Jam Sequence
G. Delivery Stationary Jam
5-16
VII. DISASSEMBLY AND ASSEMBLY
A. Pick-Up Assembly
1. Detaching the Pick-Up Roller Unit
3 Open the lower right cover
5-17
6 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
5-18
5-19
2. Detaching the Pick-Up Roller
3. Points to Note When Attaching the Pick-Up Roller
4. Detaching the Pick-Up Clutch
5-20
COPYRIGHT 1997 CANON INC
5. Detaching the Separation Pad
5-21
CHAPTER 5 PICK-UP/FEEDING SYSTEM
6. Adjusting the Left/Right Registration
a. Pick-Up from the Cassette
5-22
CHAPTER 5 PICK-UP/FEEDING SYSTEM
B. Multifeeder Assembly
1. Detaching the Multifeeder Assembly
5-23
CHAPTER 5 PICK-UP/FEEDING SYSTEM
2. Detaching the Multifeeder Pick-Up Roller Unit
q w e
5-24
5-25
3. Detaching the Multifeeder Pick-Up Roller
5. Detaching the Separation Pad
4. Points to Keep Note When Attaching the Multifeeder Pick-Up Roller
5-26
w on the collar is toward the rear
5-27
6. Detaching the Multifeeder Drive Unit
5-28
7. Detaching the Multifeeder Clutch
5-29
8. Positioning the Multifeeder Assembly paper guide plate cam
9. Adjusting the Left/Right Registration
10. Points to Note When Attaching the Multifeeder Assembly Rack Plate
5-30
5-31
C. Registration Roller Assembly
1. Detaching the Registration Clutch
2. Detaching the Upper Registration Roller
CHAPTER 5 PICK-UP/FEEDING SYSTEM
5-32
Take care not to misplace the springs front, rear
3 Lift the upper registration roller e to detach
5-33
3. Detaching the Lower Registration Roller
D. Feeding Assembly
1. Detaching the Feeding Belt
5-34
CHAPTER 5 PICK-UP/FEEDING SYSTEM
5-35
5 Detach the static eliminator
6 Detach the feeding spacer t from the hook arrow
3. Detaching the Pick-Up Clutch
E. Cassette Feeding Module
1. Detaching the Copier from the Cassette Feeding Module
2. Detaching/Attaching the Pick-Up Roller
CHAPTER FIXING SYSTEM
A. Outline
I. BASIC OPERATIONS
COPYRIGHT 1997 CANON INC
CHAPTER 6 FIXING SYSTEM
B. Controlling the Fixing Heater Temperature
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON
Reference
CHAPTER 6 FIXING SYSTEM
COPYRIGHT 1997 CANON INC
HTRD Supply power to heater
C. Controlling the Supply Power for the Fixing Heater
2. Thermal Fuse FU1
D. Detecting Overheating at the End of the Fixing Heater
E. Protection Mechanism
1. Thermistor TH1, TH2
Fixing film
F. Correcting Displacement of the Fixing Film
1. Outline
Reference
Normal ON OFF rear ON OFF ON front OFF
unit mm Fixing film rear front Tension roller OFF Drive roller ON
Fixing belt motor M4 Tension roller rear view
displacement to the rear displacement to the front
6-10
2. Controlling the Fixing Film Motor
6-11
II. DISASSEMBLY AND ASSEMBLY
A. Fixing Assembly
1. Construction1
COPYRIGHT 1997 CANON INC
2. Detaching the Upper Fixing Unit
6-12
CHAPTER 6 FIXING SYSTEM
6-13
COPYRIGHT 1997 CANON INC
er t
6-14
CHAPTER 6 FIXING SYSTEM
CHAPTER 6 FIXING SYSTEM
y u t
i o!0
6-15
CHAPTER 6 FIXING SYSTEM
6-16
9 Pull out the fixing film !2toward the front
10 Detach the tension roller !3
CHAPTER 6 FIXING SYSTEM
6-17
11 Remove the screw !4, and detach the fixing film sensor !5
12 Remove the E-ring !6
CHAPTER 6 FIXING SYSTEM
9 !8 !7
@2 @1
6-18
16 Remove the two screws @3, and detach the fixing film motor unit @4
6-19
4. Points to Note When Attaching the Fixing Film
5. Points to Note When Attaching the Heater Connector
6-20
6-21
6. Points to Note When Replacing the Fixing Upper Unit
7. Adjusting the Fixing Film Drive Roller Pressure
Figure 6-220 rear view
The copier enters fixing tension roller mode
6-22
6-23
8. Detaching the Lower Fixing Unit
6-24
6-25
10. Adjusting the Lower Fixing Roller Nip
a. Measuring the Nip
6-26
Reference
COPYRIGHT 1997 CANON INC
B. Delivery Assembly
6-27
CHAPTER 6 FIXING SYSTEM
CANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON
6-28
CHAPTER 6 FIXING SYSTEM
COPYRIGHT 1997 CANON INC
EXTERNALS/AUXILIARY MECHANISMS
CHAPTER
COPYRIGHT 1997 CANON INC
I. POWER SUPPLY
A. Outline
CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS
Reference
B. Power Supply Circuit Assembly
CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS
COPYRIGHT 1997 CANON INC
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON
4. Overcurrent in the Low-voltage Power Supply
C. Detecting Errors in the Power Supply PCB
2. Error in the High-Voltage Output Data
3. Low-Voltage Output Data Error
D. Protection Mechanisms for the Power Supply Circuit
II. DISASSEMBLY AND ASSEMBLY
A. External Covers
cover
CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS
COPYRIGHT 1997 CANON INC
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON
1. Detaching the Control Panel
B. Control Panel
C. Fans
1. Detaching the Exhaust Fan
7-10
7-11
D. Main Motor/Main Drive Assembly
2. Detaching the Main Drive Assembly
1. Detaching the Main Motor Unit
9 Turn the pulley i clockwise, and detach the belt o
7-12
7-13
3. Routing the Drive Belt
CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS
E. Cassette unit
1. Detaching the Pick-Up Drive Unit
7-14
7-15
r y r t t r
2. Detaching the Cassette Motor
q e w q
COPYRIGHT 1997 CANON INC
3. Detaching the Cassette Driver PCB
7-16
CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS
7-17
2. Points to Note When Replacing the DC Controller PCB
F. DC Controller PCB
1. Detaching the DC Controller PCB
G. Composite Power Supply PCB
1. Detaching the Composite Power Supply PCB
7-18
6 Remove the three screws !0, and detach the power cord mount !1
7-19
7-20
2. Points to Note When Handling the Composite Power Supply PCB
I. Intensity Sensor PCB
1. Points to Note When Replacing the AE Sensor
1. Points to Note When Replacing the Intensity Sensor
H. AE Sensor PCB
CANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON
7-22
CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS
COPYRIGHT 1997 CANON INC
CHAPTER INSTALLATION
I. SELECTING THE SITE
A. Unpacking and Removing Fixings
II. UNPACKING AND INSTALLING THE COPIER
Step
Step
B. Turning On the Copier
Step
Step
C. Checking the Images and Operations
Check/Remarks
D. Attaching the Drum Unit
8-10
E. Changing the Cassette Size
8-11
A5 R A4
R A4
8-12
III. RELOCATING THE COPIER
8-13
Direct position refers to
IV. REPLACING THE DRUM UNIT
8-14
Go through the following when replacing the drum unit
Step
8-15
Step
8-16
8-17
V. INSTALLING THE CONTROL CARD IV N
CHAPTER 8 INSTALLATION
8-18
10 Disconnect the copier’s dummy connector r
11 Connect the connector t of the Control Card IV N
CHAPTER 8 INSTALLATION
VI. CASSETTE HEATER KIT 5 INSTALLATION PROCE- DURE
A. Unpacking
8-19
8-20
B. Installation to a Cassette Feeding Module-A2/B2
Screws
8-21
6 Close the cover
8-22
Cassette Feeding Module-B2
8-23
Copiers connector Molded member Copiers base plate
CHAPTER 8 INSTALLATION
Relay harness
8-24
CHAPTER 8 INSTALLATION
8-25
12 Install the rear cover of the cassette pedestal and all covers
13 Install the copier’s rear cover
y *Not used u *Not used
VII. INSTALLING THE REMOTE DIAGNOSTIC DEVICE
8-26
A. Unpacking
8-27
B. Installation to the Copier
4 Connect the cable o on the copier side and the RDD’s cable
8-28
COPYRIGHT 1997 CANON INC
8-29
CHAPTER 8 INSTALLATION
Modular Jack on the Right
1. If the ROM IC6 !2 is not mounted, you need not mount it
8-30
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON
8-31
CHAPTER 8 INSTALLATION
COPYRIGHT 1997 CANON INC
LED1 LED2 LED3
8-32
SW2-2
8-33
11 Reset the RDD’s RAM
SW2-1
12 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
8-34
13 Shift bit 6 of the DIP switch 2 !9on the RDD’s PCB to OFF
8-35
service station
8-36
normally
8-37
w @7 q w
8-38
CHAPTER MAINTENANCE AND SERVICING
A. Periodically Replaced Parts
I. PERIODICALLY REPLACED PARTS
II. DURABLES
A. Copier
Lower fixing separation claw
B. Cassette Feeding Module-B2/Cassette Feeding Module-A2
Perform work according to the number
III. PERIODICAL SERVICING
IV. SERVICING CHART
clean replace lubricate adjust inspector clean
Do not use solvents or oils other than those specified
V. NOTES ON DRUM KIT
Do NOT throw the drum kits into fire it can burst or explode
Otherwise, dispose of it as nonflammable material
CHAPTER TROUBLESHOOTING
10-1
Guide to Troubleshooting Tables
CANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON
10-2
CHAPTER 10 TROUBLESHOOTING
COPYRIGHT 1997 CANON INC
COPYRIGHT 1997 CANON INC
I MAINTENANCE AND INSPECTION
A. Image Adjustment Basic Procedure
10-3
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON
B. Periodical Servicing
10-4
COPYRIGHT 1997 CANON INC
II. STANDARDS AND ADJUSTMENTS
A. Image Adjustment
10-5
10-6
Reference
2.0±1.0mm
2.5± 1.5mm
10-7
10-8
4. Adjusting the Left/Right Registration
Shutter
5. Adjusting the Left/Right Margin No. 311 left/right margin
10-9
Adjust the distance between the two shutters in the blanking assembly
Reference
6. Adjusting the Scanning Lamp Intensity
10-10
positioning
10-11
7. AE Adjustment
Figure 10-210 DC Controller PCB
10-12
VR391
2 Press 2 on the keypad The copier indicates ‘302’
10-13
causes the AE copies
10-14
After adjustment with
service mode causes
B. Exposure System
1. Routing the Scanner Drive Cable
10-15
10-16
Position B Longest pin
3. Adjusting the Scanner Cable Tension
4. Assembling the Mirror Positioning Tool
10-17
60mm
10-18
CHAPTER 10 TROUBLESHOOTING
1~5mm
Figure 10-220 front view
10-19
Reference
10-20
6. Positioning the Change Solenoid
Figure 10-223b
C. Image Formation System
1. Positioning the Blank Shutter Solenoid
Figure 10-223a
Attach the spring to the outside of the sides shutter
2. Routing the Blank Shutter Cable
10-22
3. Positioning the Solenoid for the Primary Charging Roller
4. After Replacing the Drum Unit
5. Attaching the Drum Heater
10-23
9 Connect the connector y as shown in Figure
10-24
10-25
D. Pick-Up/Feeding System
1. Orientation of the Pick-Up Roller
2. Orientation of the Multifeeder Pick-Up Roller
10-26
3. Positioning the Paper Guide Plate Cam multifeeder
2. Points to Note When Attaching the Heater Connector
E. Fixing System
10-27
3. Adjusting the Fixing Film Drive Roller Pressure
Figure 10-236 rear view
10-28
10-29
4. Points to Note after Replacing the Fixing Upper Unit
5. Adjusting the Nip
10-30
Reference
6. Routing the Drive Belt
7. Storing the Fixing Heater Resistance
10-31
8-1 When Replacing the Fixing Upper Unit
8. Setting the Fixing Heater Temperature Control Value
Figure 10-240 Heater Stay Side Plate rear
10-32
10-33
Example
10 Enter ‘4’ using the keypad, and set the copy count
10-34
10-35
F. Electrical
1. After Replacing the PCB
2. Clearing the Back-Up RAM
Reference
3. Checking the Photointerrupters
10-36
Reference
by hand while
10-37
Service mode
a. Copier
Service mode
10-38
b. Cassette Feeding Unit
10-39
Name
10-40
Name
10-41
Name
10-42
Reference
4. Adjusting the Multifeeder Paper Width Sensor
10-43
Clear Clears settings
5. Setting the Paper Size for the Universal Cassette
10-44
Government-R
2. Checking the Originals
III. TROUBLESHOOTING IMAGE FAULTS
A. Initial Checks
1. Site Environment
10-46
5. Others
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON
10-47
CHAPTER 10 TROUBLESHOOTING
COPYRIGHT 1997 CANON INC
COPYRIGHT 1997 CANON INC
B. SAMPLES OF IMAGE FAULTS
10-48
CHAPTER 10 TROUBLESHOOTING
C. Troubleshooting Faulty Images
1. The copy is too light half-tone only
10-49
2. The copy is too light black solid also
3. The copy is too light overall, extremely
10-50
Cause
10-51
4. The copy has uneven density front too dark
5. The copy has uneven density front too light
10-52
10-53
6. The copy is foggy overall
10-54
7. The copy is foggy vertical
8. The copy has black lines vertical thick fuzzy lines
9. The copy has black lines vertical, fine
10. The copy has white spot vertical
11. The copy has white lines vertical
10-55
10-56
12. The copy has white spots horizontal
10-57
13. The back of the copy is soiled
14. The copy has a fixing fault
15, 16, 17 The leading edge of the copy is displaced
10-58
10-59
18. The copy has a blurred image
19. The copy is foggy horizontal
10-60
Developing assembly spacer
10-61
20. The copy has poor sharpness
21. The copy is blank
22. The copy is solid black
10-62
10-63
IV. TROUBLESHOOTING MALFUNCTIONS
A. Troubleshooting Malfunctions
E000
E001
E002, E003
10-64
E004
E007
10-65
E010
E030
10-66
E064
9. E202 keys on control panel invalidated
10-67
10-68
10. E210
11. E220
12. E240
10-69
13. E261
14. E710, E711, E712, E717
15. E803
10-70
16. AC power supply is absent
Pin No
17. DC power supply is absent
10-71
Connector
18. The blank shutter fails to move
19. The photosensitive drum fails to rotate
10-72
20. The pick-up operation fails from cassette
21. The pick-up operation from the multifeeder fails
10-73
22. The scanner fails to move forward/in reverse
23. The registration roller fails to rotate
10-74
24. The scanning lamp fails to turn on
25. The lens fails to move
10-75
10-76
28. The add paper indicator fails to turn off
26. The fixing heater fails to operate
27. The pre-exposure lamp fails to turn on
10-77
29 The jam message fails to turn off
V. TROUBLESHOOTING FEEDING PROBLEMS
A. Jams copy paper
10-78
10-79
1. Pick-Up Assembly
2. Separation/Feeding Assembly
Fixing/Delivery Assembly
Delivery
10-81
B. Feeding Faults
1. Double feeding
2. Wrinkling
CHAPTER 10 TROUBLESHOOTING
VI ARRANGEMENT/FUNCTIONS OF THE ELECTRICAL PARTS
A. Sensors
10-82
10-83
COPYRIGHT 1997 CANON INC
B. Clutches, Solenoids, and Switches
10-84
CHAPTER 10 TROUBLESHOOTING
10-85
COPYRIGHT 1997 CANON INC
C. Motors, Heaters, and Lamps
10-86
CHAPTER 10 TROUBLESHOOTING
10-87
COPYRIGHT 1997 CANON INC
D. PCBs
10-88
CHAPTER 10 TROUBLESHOOTING
Name
10-89
COPYRIGHT 1997 CANON INC
E. Cassette Feeding Module - A2
10-90
CHAPTER 10 TROUBLESHOOTING
Photointerrupter
10-91
F. Variable Resistors VR and Check Pins by PCB
1. DC controller PCB
10-92
COPYRIGHT 1997 CANON INC
2. Composite power supply PCB
10-93
CHAPTER 10 TROUBLESHOOTING
10-94
VII. SERVICE MODE
B. Using Service Mode
1. Activating Service Mode
6. Clearing Stored Error Code
2. Selecting a Service Mode
4. Using Adjustment Mode 3 and Specification Mode
5. Using Operation/Inspection Mode
10-96
7. Recording on the Service Mode Label
10-97
C. Control Display Mode
No. 101 Jam Location Indicator
10-98
To clear an item, press the Clear key
D. I/O Mode
10-99
Press 2 on the keypad and the AE key to activate I/O display mode
10-100
LED copy count indicator from 201 to
No. 201/202/203/204 Port C Digital Display
Port H Display
10-101
right face in page separation timing
E. Adjustment Mode
10-102
Leading edge margin adjustment for
Description
10-103
Description
10-104
10-105
F. Operation/Inspection Mode
Description
10-106
10-107
G. Specification Settings Mode
10-108
H. Counter Mode
VIII. SELF DIAGNOSIS A. Copier
E000
E001
E002
E010
E003
E004
E007
E261
E210
E220
E240
Clearing an Error Code back-up data
10-112
E411
E400
E402
E404
E510
C. Self Diagnosis sorter
10-114
E500
When an E code is indicated
10-115
CANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON
10-116
CHAPTER 10 TROUBLESHOOTING
COPYRIGHT 1997 CANON INC
APPENDIX
A4, 2 copies, Direct, from copier cassette
A. GENERAL TIMING CHART
1. Signals and Abbreviations
B. SIGNALS AND ABBREVIATIONS
C. GENERAL CIRCUIT DIAGRAM
COPYRIGHT 1997 CANON INC
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN IMPRIME AU JAPON
CANON NP6218 REV. 0 MAR. 1997 PRINTED IN JAPAN IMPRIME AU JAPON
COPYRIGHT 1997 CANON INC
D. SPECIAL TOOLS
E. SOLVENTS/OILS
Prepared by
CANON INC Printed in Japan REVISION 0 MAY 1997
5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302 Japan
This publication is printed on 70% reprocessed paper
PRINTED IN JAPAN IMPRIMÉ AU JAPON
0797S0.7-2
