Canon NP6045 Service Manual

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
Table Of Contents
Table Of Contents
I. FEATURES
II. SPECIFICATIONS
Performance
Others
basic operation
I. BASIC OPERATIONS
B. Outline of the Electric Circuitry
C. Basic Sequence of Operations
Basic Sequence of Operations at Power-On (2/2)
Basic Sequence of Operations during Copying
Basic Sequence of Operations for Page Separation
D. Main Motor (M1) Control Circuit
Detecting an Error
E. Inputs to the DC Controller
F. Outputs from the DC Controller
G. Inputs to and Outputs from the Options
A. Varying the Reproduction Ratio
II. LENS DRIVE MECHANISM
Moving the Lens
III. SCANNER DRIVE MECHANISM
Relationship between Scanner Sensor and Signals
Basic Sequence of Operations for Scanner Movement
Scanner Movement (page separation)
A. Outline
Scanner
B. Lens Drive Assembly
Removing the Lens Stage Temporarily
Installing the Light-Blocking Belt
Removing the Lens X Direction Drive Motor
Attaching the Lens X Direction Drive Belt
When Replacing the Light Blocking Belt
Table Of Contents
I. PROCESSES
Control Method
Potential Measurement Circuit
B. Controlling the Scanning Lamp Intensity
Check Points
C. Controlling the Primary/Transfer Corona Current
Controlling the Transfer Corona Current
D. Controlling the Separation/Pre Transfer Corona Current
Separation/ Pre-Transfer Corona Current
Overcurrent of the Separation Pre-Transfer Corona Current
E. Controlling the Blank Exposure Lamp (LEDs)
Controlling the Activation in Original Frame Erasing Mode
f. drum heater circuit
a. scanning lamp
b. standard white plate assembly
c. pre-exposure lamp unit
Lamp Assembly
E. Photosensitive Drum
Replacing the Drum Heater
G. Primary Charging Assembly
I. Transfer/Separation Charging Assembly
Separation Charging Assembly
J. Charging Wire
Routing the Grid for the Primary Charging Assembly
Adjusting the Height of the Charging Wire
Assembly Anti-Stray Toner Sheet
K. Developing Assembly
Removing the Blade Unit
Cylinder and the Magnetic Seal
L. Hopper Assembly
M. Drum Cleaner
Installing the Cleaning Blade
Installing the Side Seal
N. Separation Claw/Separation Claw Drive Assembly
O. Waste Toner Feeding Assembly
Holding Tray Feeding
I. PICK-UP/FEEDING SYSTEM
II. PICK-UP FROM THE CASSETTE
Outline
B. Cassette Lifter Operations
C. Detecting the Size of Copy Paper in the Cassette
Markings on the Width Guide Rail
Paper Sizes
Registering Paper Width Basic Value
III. PICK-UP FROM THE PAPER DECK
Pick-Up Operations
b. lifter operations
c. detecting paper for the deck
Operation
Making Two-Sided/Overlay Copies (1st side)
Outline of Operations
Sequence of Operations for Overlay Copies (2nd side)
d. reversal delivery
Delivery Operations
Sided/Overlay/Reversal Delivery Copies
Jogging Plate and the Rear Guide Plate
Detecting Copy Paper
Tray
Skip Mode (copying an even number of originals)
Skip Mode (copying an odd number of originals)
Reverse Delivery
vii. detecting jams
Registration Roller Delay Jam
Pick-Up Vertical Path Feeding 0/1 Delay Jam
Pick-Up Vertical Path Feeding 2–4 Delay Jam
Fixing Assembly Outlet Delay Jam
External Delivery Delay Jam
Internal Delivery Delay Jam
Holding Tray Inlet Delay Jam
Holding Tray Re-Pick Up Delay Jam
Holding Tray Registration Stationary Jam
viii. disassembly and assembly
b. paper deck assembly
Pick-Up Assembly
Releasing Solenoid of the Deck
D. Pick-Up Vertical Path Roller Assembly
E. Registration Feeding Assembly
Removing the Registration Roller (upper rubber)
F. Feeding Assembly
Removing the Feeding Belt
G. Holding Tray Assembly
Removing the Holding Tray Assembly from the Copier
Removing the Holding Tray Registration Paper Sensor
Removing the Re-Pick Up Roller
Removing the Holding Tray Y Motor
Removing the Y Motor Home Position Sensor
Roller/Separation Belt Assembly
Removing the Feeding Roller
Removing the Separation Belt Assembly
Paper Deflecting Plate Drive Solenoid
Removing the Holding Tray X Motor
Removing the Holding Tray Paper Jogging Solenoid
Paper Jogging Guide Plate Assembly
the Holding Tray Assembly Paper Jogging Guide Plate
H. Holding Tray Feeding Assembly
Removing the Sensor from the Holding Tray
B. Fixing Drive Assembly
C. Controlling the Fixing Temperature
D. Reciprocating Mechanism for the Main Thermistor (TH1)
E. Reciprocating Mechanism for the Upper Separation Claw
F. Fixing Heater SSR Error Detection Circuit
G. Locking the Fixing/Feeding Unit
H. Error Detection Circuit
Unit
Removing the Fixing Heater
Installing the Fixing Heater
Installing the Upper Fixing Roller
Removing the Thermal Switch
Removing the Lower Separation Claw Assembly
Removing the Lower Roller
Removing the Upper Separation Claw
Adjusting the Fixing Clutch
Removing the Sub Thermistor TH2) Unit
B. Delivery Assembly
Removing the Fixing/Feeding Locking Assembly
Sensor and the Internal Delivery Sensor
Removing the Internal Delivery Roller
Table Of Contents
I. CONTROL PANEL
LCD Processing
LCD Contrast Automatic Adjustment
Touch Switch Input
II. FANS
III. POWER SUPPLY
B. Power Supply Circuit
C. Power Supply for Date/Time Display
IV. DISASSEMBLY AND ASSEMBLY
Removing the Front Door
Removing the Inside Upper Cover
Removing the Rear Cover
Removing the Process Unit
Installing the Process Unit
B. Control Panel
Removing the Control Panel PCB
Removing the Control Panel CPU PCB
C. Door Switch Assembly
d. fan unit
e. removing the counter assembly
f. main motor assembly
J. Pick-Up Drive Assembly
K. Duplexing Unit Drive 1 Assembly
L. Lifter Drive Assembly
Removing the Lifter Assembly
M. Cassette Pick-Up Drive Assembly
N. Attaching the Drive Belt
O. DC Controller PCB
P. DC Power Supply Assembly
Q. High-Voltage Transformer Assembly
R. Power Supply Input Assembly
I. SELECTING THE SITE
II. UNPACKING AND INSTALLATION
A. Unpacking
B. Installing the Scanner
C. Installing the Fixing Assembly
D. Installing the AP Kit and the Charging Assembly
E. Installing the Copy Tray
Replacing the Leaf Springs of the Delivery Roller
F. Checking the Developing Assembly
G. Installing the Pick-Up Assembly
H. Supplying Toner
I. Setting Images/Functions and User Mode
RELOCATING THE MACHINE
INSTALLING THE CONTROL CARD V
I. PERIODICALLY REPLACED PARTS
II. CONSUMABLES AND DURABLES
B. RDF-H1
SCHEDULED SERVICING
SCHEDULED SERVICING CHART
Table Of Contents
I. MAINTENANCE AND INSPECTION
B. Points to Note for Scheduled Servicing
II. STANDARDS AND ADJUSTMENTS
Margin
Adjusting the AE Slope
B. Exposure System
Routing the Scanner Drive Cable
Adjusting the Tension of the Scanner Cable
Cleaning the Mirror (No. 5 mirror)
Installing the Lens X Direction Drive Belt
C. Image Formation System
Adjusting the Blank Exposure Lamp
Position of the Roller Electrode
D. Pick-Up/Feeding System
Orientation of the Separation Roller (cassette/deck)
Orientation of the Pick-Up Roller (multifeeder)
Orientation of the Feeding Roller (multifeeder)
Pick-Up Roller Releasing Solenoid (deck)
Multifeeder Assembly Side Guide
Delivery Paper Deflecting Drive Solenoid
Assembly Side Guide Assembly
Holding Tray Paper Jogging Solenoid
Installing the Drive Belt
E. Fixing System
Adjusting the Pressure of the Lower Roller (nip)
F. Electrical System
Checking the Potential Control System
Potential Control System Conversion Table
Checking the Environment Sensor
TROUBLESHOOTING IMAGE FAULTS
Assembly
B. Image Fault Samples
C. Troubleshooting Image Faults
The copy is too light. (solid black also)
The copy is foggy. (overall)
The copy has vertical fogging
The back of the copy is soiled
The copy has fixing faults
The copy has leading edge displacement
The copy has a blurred or fuzzy image
The copy has horizontal fogging
The copy is blank
IV. TROUBLESHOOTING MALFUNCTIONS
E015
E020
E030 (The total copy counter fails to operate.)
E050
E203
E240
E713
AC power is absent
Pick-up fails
The deck lifter fails to move up
Pick-up fails. (cassette pick-up)
Pick-up fails. (multifeeder)
The vertical path roller fails to rotate
The scanner fails to rotate forward
The blank exposure lamp fails to turn ON
The pre-exposure lamp fails to turn ON
The hopper motor (M10) fails to operate
The hopper motor (M11) fails to operate
The lens fails to move
The Add Toner indicator fails to turn ON
The Control Card Set indicator fails to turn ON
The fixing heater fails to turn ON
V. TROUBLESHOOTING FEEDING PROBLEMS
Fixing/delivery assembly
Holding tray feeding assembly
B. Feeding Failure
VI. ARRANGEMENT/FUNCTIONS OF THE ELECTRICAL PARTS
A. Sensors
paper deck
B. Switches and Solenoids
C. Motors and Fans
D. Clutches
E. Lamps, Heaters, and Photosensors
f. pcbs
Emitting Diodes, and Check Pins by PCB
AC Driver PCB
Control CPU PCB
Holding Tray Driver PCB
Potential Measurement PCB
HVT1 PCB
HVT2 PCB
Lamp Regulator PCB
VII. SERVICE MODE
C. Using Adjustment Mode and Option Setting Mode
f. adjustment mode
the multifeeder
VIII. SELF DIAGNOSIS
B. RDF Self Diagnosis
C. Sorter Self Diagnosis
A. GENERAL TIMING CHART
B. SIGNALS AND ABBREVIATIONS
Abbreviations
C. GENERAL CIRCUIT DIAGRAM

Canon NP6045 Service Manual Manual pdf 157 page image

2. Installing the Transfer/Separation Charging AssemblyInstall the transfer/separation charging assembly by reversing the steps used toremove it with the following in mind:1) Fit the four bosses q of the transfer/separation charging assembly into the cut-offsof the fixing/feeding unit frame w.2) Slide it from the front so that the leaf spring e will come into contact with the frameof the transfer/separation charging assembly.Figure 4-319Figure 4-320Figure 4-321w wweq qqqCOPYRIGHT © 1997 CANON INC. CANON NP6045 REV. 1 MAR. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 4 IMAGE FORMATION SYSTEM4-47