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CANON GP405/335 SERVICE MANUAL

Service Manual CANON GP405/335;
Service Manual CANON GP405/335;
This service manual, is the full CANON GP405/335 Service Repair Manual.
This manual, CANON GP405/335, is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your CANON GP405/335 copier.
You can print, zoom or read any diagram, picture or page from this Service Manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of CANON GP405/335 photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:

CHAPTER 1 GENERAL DESCRIPTION
I. FEATURES
II. SPECIFICATIONS
A. Type
B. Method
C. Performance
D. Paper Deck-B1
E. Others
F. Default Ratios
G. Copying Speed
III. NAMES OF PARTS
A. External view
B. Cross Section
IV. OPERATION
A. Turning On the Power
B. Control Panel
C. Special Features Modes
D. Additional Functions
V. ROUTINE MAINTENANCE BY THE USER
VI. SAFETY
A. Safety of Laser Light (CLASS 1 LASER PRODUCT)
B. CDRH Regulations
C. Handling the Laser Unit
D. Safety of Toner
VII. IMAGE FORMATION
A. Outline

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CHAPTER 2 BASIC OPERATION PROVIDES
I. BASIC OPERATION
A. Functional Construction
B. Outline of the Electrical Circuitry
C. Sequence of Operations
D. Main Motor (M1) Control Circuit
E. Inputs to and Outputs from the Major PCBs

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CHAPTER 3 EXPOSURE SYSTEM
I. OUTLINE OF OPERATIONS
A. Outline
B. Sequence of Operations (original exposure system)
II. SCANNER DRIVE SYSTEM
III. CONTROLLING THE SCANNING LAMP
A. Outline
B. Controlling the Pre-Heating Mechanism
C. Turning On and Off the Scanning Lamp
D. Controlling the Intensity
E. Detecting Errors
IV. IDENTIFYING THE SIZE OF AN ORIGINAL
A. Outline
B. Identifying the Size by the Paper Sensors (1)
C. Identifying the Size by the Paper Sensors (2)
D. Identifying the Size by the Original Width/Length Sensor of the Feeder
V. DISASSEMBLY/ASSEMBLY.. 3-11
A. Scanning System
B. Scanner Drive Assembly

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CHAPTER 4 IMAGE FORMATION SYSTEM
I. OUTLINE
II. ANALOG IMAGE PROCESSING
A. Outline
B. CCD
C. AE Processing (ABC processing)
D. A/D Conversion
E. Analog Signal Processing Block
III. DIGITAL IMAGE PROCESSING
A. Outline

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CHAPTER 5 LASER EXPOSURE SYSTEM
I. OUTLINE
II. GENERATING THE BD SIGNAL
III. LASER DRIVER PCB
A. Outline
B. Stabilizing the Laser Output
C. Switching the Laser Activation Mode
D. Switching the Laser Output
B. Shading Correction
C. Total Processing
D. Density Processing
E. Binary Processing
F. Image Memory
G. Overlay Copying
IV. DISASSEMBLY/ASSEMBLY
A. CCD Unit
B. IP PCB
C. Replacing the ROM DIMM (on the image processor PCB)
IV. CONTROLLING THE LASER
SCANNER MOTOR
A. Outline of Operations
B. Turning On and Off the Laser Scanner Motor
V. DISASSEMBLY/ASSEMBLY
A. Laser Scanner Assembly

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CHAPTER 6 IMAGE FORMATION SYSTEM
I. OUTLINE OF IMAGE FORMATION PROCESS
A. Outline
B. Sequence of Operations
C. Controlling the Primary Charging Roller Bias
D. Controlling the Transfer Charging Roller Bias
E. Controlling the Separation Static Eliminator Bias
F. Controlling the Transfer Guide
G. Primary Charging Roller Cleaning Mechanism
II. DEVELOPING ASSEMBLY
A. Outline
B. Controlling the Developing Bias
C. Controlling Toner Level Detection
III. DRUM CLEANER
A. Outline
B. Detecting Waste Toner
IV. DISASSEMBLY/ASSEMBLY
A. Drum Unit
B. Transfer Charging Roller
C. Drum Sensor Unit
D. Magnet Plate
E. Primary Charging Roller Cleaning Solenoid
F. Developing Assembly

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CHAPTER 7 PICK-UP/FEEDING SYSTEM
I. OUTLINE OF OPERATIONS
A. Outline
B. Sequence of Operations (pick-up from the cassette)
C. Operation in Standby State
D. Detecting the Level of Paper
E. Identifying the Size of Paper
F. Multifeeder
G. Controlling the Registration Roller Clutch
H. Making Overlay Copies
I. Operation
J. Delivery Assembly
K. Detecting Jams
II. DISASSEMBLY/ASSEMBLY
A. Pick-Up Assembly
B. Multifeeder
C. Feeding Assembly
D. Lower Feeding Assembly
E. Registration Roller Assembly
F. Delivery Assembly
G. Lower Feeding Motor
H. Pick-Up Drive Assembly
I. Vertical Path Assembly

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CHAPTER 8 PAPER DECK
I. PAPER DECK
A. Inputs to and Outputs from the Deck Driver
B. Pick-Up
C. Detecting Paper
D. Deck Lifter
E. Opening/Closing the Deck (compartment)
F. Controlling the Deck Motor
II. DETECTING JAMS
A. Outline
III. DISASSEMBLY/ASSEMBLY
A. External Covers
B. Paper Deck
C. Drive System
D. Feeding System
E. Electrical System

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CHAPTER 9 FIXING SYSTEM
I. OUTLINE OF OPERATIONS
A. Outline
B. Fixing Drive Assembly
C. Controlling the Fixing Temperature
D. Protective Mechanism for the Fixing System
E. Upper Fixing Roll Bias
II. DISASSEMBLY/ASSEMBLY
A. Fixing Assembly
B. Fixing Cleaner Assembly
C. Fixing Assembly Inlet Solenoid Assembly
D. Fixing Drive Assembly
E. Fixing Cleaning Belt Solenoid

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CHAPTER 10 EXTERNALS/AUXILIARY MECHANISMS
I. CONTROL PANEL
A. Outline
B. Operation
II. FANS
A. Arrangement and Functions
B. Sequence of Operations
C. Detecting Errors (E805)
III. POWER SUPPLY
A. Outline of the Power Supply System
B. Power Supply PCB
C. Transition to and from Sleep Mode
IV. COUNTERS
A. Outline
B. Operations of Counters
V. DISASSEMBLY/ASSEMBLY
A. External Covers
B. Removing the Front Door/Inside Cover
C. Control Panel
D. DC Controller PCB
E. Composite Power Supply PCB
F. Low-Voltage Power Supply PCB
G. Accessories Power Supply PCB
H. Fans

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CHAPTER 11 SYSTEM INTEGRATION
I. SYSTEM INTEGRATION
A. Outline
II. SCSI INTERFACE BOARD
A. Outline
B. Specifications
C. Hardware
III. DISASSEMBLY/ASSEMBLY
A. Basic Expansion Kit
B. SCSI Interface Board
C. Battery Board

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CHAPTER 12 INSTALLATION
I. SELECTING THE SITE 12-1
II. UNPACKING AND
INSTALLATION 12-3
A. Unpacking and Removing the Fixing Materials
B. Supplying Toner
C. Stirring the Toner
D. Setting the Drum Cartridge
E. Setting the Cassette
F. Installing the Feeder (DADF standard model only)
G. Making Settings
H. Checking the Copy images
III. RELOCATING THE MACHINE
IV. INSTALLING THE CONTROL CARD V
V. INSTALLING THE COPY DATA CONTROLLER-A1
A. Copy Data Controller-A1
VI. INSTALLATION OF THE NE CONTROLLER-A1

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CHAPTER 13 MAINTENANCE AND SERVICING
I. PERIODICALLY REPLACED
PARTS
II. CONSUMABLES AND DURABLES
A. Copier
B. Paper Deck
III. SCHEDULED SERVICING CHART
IV. SCHEDULED SERVICING TABLE
A. Copier
B. Paper Deck

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CHAPTER 14 TROUBLESHOOTING
I. MAINTENANCE AND INSPECTION
A. Image Basic Adjustment Procedure
B. Points of Scheduled Servicing
II. STANDARDS AND ADJUSTMENTS
A. Image Adjustment
B. Exposure System
C. Image Formation System
D. Pick-Up/Feeding System
E. Fixing System
F. Electrical System
III. TROUBLESHOOTING IMAGE FAULTS
A. Initial Checks
B. Sample Image Faults
C. Troubleshooting Image Faults
IV. TROUBLESHOOTING MALFUNCTION
V. TROUBLESHOOTING FEEDING PROBLEMS
A. Paper Jams
B. Feeding Faults
VI. ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
A. Clutches and Solenoids
B. Motors
C. Fan
D. Sensors
E. Switches and Counters
F. PCBs
G. Side Paper Deck
H. Variable Resisters, Light-Emitting Diodes, and Check Pins by PCB
VII. UPGRADING
A. Replacing the DIMM
B. Downloading
VIII. SERVICE MODE
A. Outline
B. DISPLAY Control Display Mode
C. I/O Operation Check Mode
D. ADJUST Adjustment Mode
E. FUNCTION Operation Check Mode
F. OPTION Settings Mode
G. PG test Print
H. COUNTER Mode
I. FEEDER
J. SORTER (finisher, saddle stitcher)
IX. SELF DIAGNOSIS
A. Copier
B. DADF
C. Cassette Feeding Unit-R1/S1
D. Multi Output Tray-D1
E. Finisher-C1
F. Saddle Finisher-C2
G. Finisher-E1
H. Paper Deck-B1
I. SCSI Interface Board-D1

APPENDIX
A. GENERAL TIMING CHART
B. SIGNAL NAME/ABBREVIATION LIST
C. GENERAL CIRCUIT DIAGRAM
D. SIDE PAPER DECK GENERAL CIRCUIT DIAGRAM
E. SPECIAL TOOLS
F. SOLVENTS AND OILS

Numbers of pages: 682.
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