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NP6218
Canon NP6218 Service Manual
Canon NP6218 Service Manual
Also see for NP6218:
Service handbook
Table of content
Contents
system configuration
Table Of Contents
Table Of Contents
Table Of Contents
Table Of Contents
Table Of Contents
Table Of Contents
Table Of Contents
Table Of Contents
I. FEATURES
II. SPECIFICATIONS
Features
Others
B. Cassette Feeding Module-B2 Cassette Feeding Module-A2
III. NAMES OF PARTS
B. Cross Section
Cassette Feeding Module-A2
IV. OPERATION
B. Operation Mode
C. Making Two-Sided/Overlay Copies (manual)
D. User Mode
Common Operations
Zoom Fine-Adjustment ( )
Non-Sort (with ADF and sorter installed—option) ( )
Adjustment Method for Standard Mode ( )
Quick Guide to User Mode
E. Handling the Toner Bottle
VII. IMAGE FORMATION
basic operation
I. BASIC CONSTRUCTION
B. Outline of the Electrical Circuitry
D. Main Motor Control Circuit
E. Inputs to the DC Controller PCB
Inputs to the DC Controller PCB (2/3)
Inputs to the DC Controller PCB (3/3)
F. Outputs from the DC Controller PCB
I. BASIC OPERATION
B. Lens Motor Drive Circuit
III. SCANNING DRIVE SYSTEM
Relationship between the Scanner Sensor and Signals
Driving the Scanner Motor
Separation Mode (non-AE page separation, A4, 2 copies)
DISASSEMBLY AND ASSEMBLY
Detaching the Scanner Cable
Assembling the Mirror Position Tool
Routing the Scanner Cable
Mirrors (optical length of No 1, 2, and 3 mirrors)
Mirror
B. Lens Drive Assembly
Routing the Lens Cable
Adjusting the Position of the Change Solenoid
I. PROCESSES
C. Controlling the Scanning Lamp
Turning On and Off the Scanning Lamp
Controlling the Intensity of the Scanning Lamp (FL1)
Controlling the Fluorescent Lamp Heater
Fluorescent Lamp Automatic
D. Controlling the Primary Charging Roller Bias
Turning On and Off the Primary Charging Roller Bias
Outline
Switching the Static Eliminator Bias Voltage Level
G. Controlling Blank Exposure
Blanking (Whiting) of Non Image Areas for Reduction
H. Controlling the Primary Corona Roller Cleaning Mechanism
I. Releasing the Transfer Roller
II. DEVELOPING ASSEMBLY AND CLEANING ASSEMBLY
B. Controlling the Toner Level Detection
C. Controlling the Development Bias
Component of the Development Bias
D. Automatic Control of Copy Density
AE Adjustment
III. DISASSEMBLY AND ASSEMBLY
the Fluorescent Lamp Heater/Scanning Lamp
Detaching the Blank Exposure Assembly
Detaching the Blank Exposure Lamp
Detaching the Blank Shutter Solenoid
Positioning the Blank Shutter Solenoid
Routing the Blanking Cable
B. Drum Unit
Cleaning
C. Primary Corona Assembly
Cleaning the Cleaning Pad and the Primary Corona Roller
Positioning the Solenoid for the Primary Charging Roller
D. Transfer Charging Assembly
E. Developing System
Removing the Developing Cylinder Side Seal
Installing the Side Seal and the Blade Assembly
Table Of Contents
I. PICK-UP/FEEDING SYSTEM
II. PICK-UP OPERATION (COPIER)
B. Sequence of Operations (pick-up feeding assembly; A4, 2 copies)
III. PICK-UP FROM THE CASSETTE FEEDING MODULE-A2
vi. identifying jams
C. Pre-Registration Stationary Jam
D. Separation Delay Jam
F. Delivery Delay Jam
VII. DISASSEMBLY AND ASSEMBLY
Detaching the Pick-Up Roller
Points to Note When Attaching the Pick-Up Roller
Detaching the Separation Pad
Adjusting the Left/Right Registration
B. Multifeeder Assembly
Detaching the Multifeeder Pick-Up Roller Unit
Detaching the Multifeeder Pick-Up Roller
Attaching the Multifeeder Pick-Up Roller
Detaching the Multifeeder Drive Unit
Detaching the Multifeeder Clutch
Assembly (paper guide plate cam)
the Multifeeder Assembly Rack Plate
C. Registration Roller Assembly
Detaching the Lower Registration Roller
D. Feeding Assembly
Detaching/Attaching the Pick-Up Roller
fixing system
I. BASIC OPERATIONS
B. Controlling the Fixing Heater Temperature
C. Controlling the Supply Power for the Fixing Heater
D. Detecting Overheating at the End of the Fixing Heater
F. Correcting Displacement of the Fixing Film
Controlling the Fixing Film Motor
II. DISASSEMBLY AND ASSEMBLY
Detaching the Upper Fixing Unit
E. Cassette Unit
I. POWER SUPPLY
B. Power Supply Circuit Assembly
C. Detecting Errors in the Power Supply PCB
D. Protection Mechanisms for the Power Supply Circuit
A. External Covers
B. Control Panel
Detaching the Exhaust Fan
D. Main Motor/Main Drive Assembly
Routing the Drive Belt
Detaching the Pick-Up Drive Unit
Detaching the Cassette Motor
Detaching the Cassette Driver PCB
F. DC Controller PCB
G. Composite Power Supply PCB
the Composite Power Supply PCB
H. AE Sensor PCB
I. SELECTING THE SITE
II. UNPACKING AND INSTALLING THE COPIER
B. Turning On the Copier
C. Checking the Images and Operations
D. Attaching the Drum Unit
E. Changing the Cassette Size
III. RELOCATING THE COPIER
IV. REPLACING THE DRUM UNIT
V. INSTALLING THE CONTROL CARD IV N
VI. CASSETTE HEATER KIT 5 INSTALLATION PROCEDURE
B. Installation (to a Cassette Feeding Module-A2/B2)
VII. INSTALLING THE REMOTE DIAGNOSTIC DEVICE II
B. Installation to the Copier
I. PERIODICALLY REPLACED PARTS
Table Of Contents
I. MAINTENANCE AND INSPECTION
B. Periodical Servicing
II. STANDARDS AND ADJUSTMENTS
Adjusting the Scanning Lamp Intensity
B. Exposure System
c. image formation system
d. pick-up/feeding system
e. fixing system
f. electrical
a. initial checks
b. samples of image faults
The back of the copy is soiled
The copy has a fixing fault
The copy has a blurred image
The copy has poor sharpness
The copy is blank
a. troubleshooting malfunctions
E002, E003
E202 (keys on control panel invalidated)
E210
E261
AC power supply is absent
DC power supply is absent
The blank shutter fails to move
The pick-up operation from the multifeeder fails
The scanner fails to move forward/in reverse
The scanning lamp fails to turn on
The fixing heater fails to operate
The jam message fails to turn off
V. TROUBLESHOOTING FEEDING PROBLEMS
Pick-Up Assembly
Separation/Feeding Assembly
B. Feeding Faults
A. Sensors
B. Clutches, Solenoids, and Switches
C. Motors, Heaters, and Lamps
d. pcbs
E. Cassette Feeding Module-A2
DC controller PCB
Composite power supply PCB
VII. SERVICE MODE
Selecting a Service Mode
viii. self diagnosis
b. self diagnosis (adf)
c. self diagnosis (sorter)
A. GENERAL TIMING CHART
B. SIGNALS AND ABBREVIATIONS
C. GENERAL CIRCUIT DIAGRAM
D. SPECIAL TOOLS
E. SOLVENTS/OILS
B. Drum Unit
1.
Detaching the Drum Unit
1)
Open the front door.
2)
Pull out the developing assembly releasing lever
q
toward the front, and turn it
clockwise.
Figure 4-317
3)
Open the copier’s top unit.
4)
Turn the knob
w
counterclockwise to detach.
5)
Pull out the drum unit
e
toward the front.
Figure 4-318
COPYRIGHT
©
1997 CANON INC.
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 4
IMAGE FORMATION SYSTEM
4-39
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This manual is suitable for:
NP6218
