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Color iR C2550
Service manual
Canon Color iR C2550 Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Chapter 8 Pickup/Feeding System
Chapter 18 Upgrading
Chapter 1 Introduction
System Construction
System Configuration 1 (Delivery Accessories)
System Configuration Overview (Delivery Accessories)
System Configuration 2 (Delivery Accessories)
System Configuration 3 (Delivery Accessories)
System Configuration (Delivery Accessories)
System Configuration (Pickup/Original Processing Accessories)
Cassette Heater System Configuration 1
System Configuration (Printing/Transmission Accessories) (USA)
System Configuration (Printing/Transmission Accessories)
Functions of Printing/Transmission Accessories
Functions of Printing/Transmission Accessories (USA)
Other Options
Product Specifications
External View
Names of Parts
Cross Section
Points to Note about Turning off the Main Power Switch
Turning on the Power Switch
Using the Machine
Common Settings
User Mode Items
Common Settings
Adjustment/Cleaning
Timer Settings
Report Settings
System Settings
System Settings
Communications Settings
Copy Settings
Address Book Settings
Mail Box Settings
Cleaning
User Maintenance
Inspection
CDRH Act
Handling of Laser System
Laser Safety
Safety
Notes When Handling a Lithium Battery
Safety of Toner
Notes before It Works Serving
Product Specifications
Type and Function
Others
Function List
Others
Print Speed (Image)
Type of Paper
Type of Paper
Chapter 2 Installation
Making Pre-Checks
Selecting the Site of Installation
Check to Make before Installation
Combination Table of Accessory Installation
Checking the Contents
Unpacking and Installation
Installation of the Drum Unit
Installation of the Scanner
Unpacking
Installation of the Toner Retainer
Attaching Other Parts
Connection of the Cable
Points to Note When Turning off the Main Power
Automatic Gradation Correction
Fixing the Machine in Place
Setting up the Cassette
Adjusting the Image Position
Checking the Connection to the Network
Making Checks Using a Remote Host Address
Using PING
Troubleshooting the Network
Making a Check Using a Local Host Address
Making Checks Using a Loopback Address
Checking the Images/Operations
Checking the Images
Relocating the Machine
Installing the Copy Tray
Checking the Components
Installation Procedure
Turning off the Machine
Installing the Card Reader
Installation Procedure in the Imageware Accounting Manager (Hereinafter Referred to Iwam Environment
Installing the Original Tray
Installing the Key Switch Unit
Checking after Installation
Turning off the Host Machine
Installing the Voice Operation Kit
Turning off the Host Machine
Installing the Wireless Network Interface Adapter
Turning off the Host Machine
Affixing the Label
Cleaning the Copyboard Glass
Affixing Labels
Turning off the Host Machine
Turning off the Host Machine
Construction/Basic Sequence
Construction
Functional Construction
Chapter 3 Basic Operation
Connections Among Major Pcbs
Basic Sequence
Basic Sequence of Operations at Power-On
Basic Sequence of Operations for a Print Job (Full Color)
Basic Sequence of Operations for a Print Job (Mono Color)
Table of Contents
Construction
Construction and Functions
Construction of the Electrical Circuitry
Sram Pcb
Start-Up Sequence
Overview
Actions When HDD Error
E602 in Detail
Image Processing
Overview of the Flow of Image Data
Reader Input Image Processing
Printer Output Image Processing
Compression, Decompression, and Edit Processing Blocks
Flow of Image Data
Flow of Image Data for Copier Functions
Flow of Image Data for Box Functions
Flow of Image Data for SEND Functions
Flow of Image Data for Fax Reception Functions
Flow of Image Data for Fax Transmission Functions
Flow of Image Data for PDL Functions
Parts Replacement Procedure
Before Removing the Main Controller Box
Before Removing the Main Controller PCB
Controller Box
Main Controller PCB (Main)
Removing the Controller Box
Removing the Main Controller PCB
Before Removing the Main Controller PCB (Sub SJ-A)
Before Removing the Main Controller PCB (Sub-PDRAM-A)
Before Removing the Main Controller PCB (Sub-R-A)
Main Controller PCB (Sub PDRM-A)
Main Controller PCB (Sub R-A)
Main Controller PCB (Sub SJ-A)
Removing the Main Controller PCB (Sub SJ-A)
Removing the Main Controller PCB (Sub-PDRAM-A)
Removing the Main Controller PCB (Sub-R-A)
Replacing Main Controller PCB
Chapter 4 Main Controller
Main Controller PCB (Sub SJ-A)
Before Removing the Main Controller PCB (Sub RB-A2)
Before Removing the SRAM
Removing the Main Controller PCB (Sub RB-A2)
Sram Pcb
Before Removing the Boot ROM PCB
Before Removing the Image Memory (SDRAM) PCB
Boot ROM PCB
Image Memory (SDRAM)
Removing the Boot ROM PCB
Removing the Image Memory (SDRAM) PCB
Removing the SRAM
When Replacing the SRAM PCB
Before Removing the HDD
Hdd
Removing the HDD
When Replacing the HDD
Before Removing the Controller Fan
Controller Fan
Removing the Controller Fan
Table of Contents
Construction
Specifications, Control Mechanisms, and Functions
Major Components
Construction of the Control System
Reader Controller PCB
Basic Sequence
Basic Sequence of Operations at Power-On
Basic Sequence of Operations in Response to a Press on the Start Key (Book Mode, 1 Original)
Basic Sequence of Operations in Response to a Press on the Start Key (ADF Mode, 1 Original)
Various Control Mechanisms
Controlling the Scanner Drive System
Overview
Reader Motor Control
Contact Image Sensor (CIS)
Overview
Analog Control Inside the Contact Image Sensor (CIS)
Enlargement/Reduction
Changing the Magnification in Main Scanning Direction
Changing the Magnification in Sub Scanning Direction
Controlling the Scanning Lamp
Activation Control
Error Detection
Overview
Scanning Lamp
Detecting the Size of Originals
Overview of Detection Operation
Points of Original Size Detection
Dirt Sensor Control
Overview
Image Processing
Overview
A/D Conversion of the CCD Output
Driving the CCD
Gain Correction and Offset Correction for the CCD Output
Shading Adjustment
Shading Correction
Shading Correction (Outline)
Parts Replacement Procedure
Copyboard Glass
After Replacing the Copyboard Glass
Removing the Copyboard Glass
After Replacing the ADF Reading Glass
Removing the ADF Reading Glass
Reader Controller PCB
Before Removing the Reader Controller PCB
Before Replacing the Reader Controller PCB
Removing the Reader Controller PCB
After Replacing the Reader Controller PCB
Inverter PCB
Before Removing the Inverter PCB
Removing the Inverter PCB
Contact Sensor
Before Removing the Contact Image Sensor (CIS)
Removing the Contact Image Sensor (CIS)
After Replacing the CIS
Scanner Motor
Before Removing the Scanner Motor
Removing the Scanner Motor
Original Cover Sensor
Before Removing the Copyboard Cover Open/Closed Sensor (Front/Rear)
Removing the Copyboard Cover Open/Closed Sensor (Front/Rear)
Original Sensor
Contact Sensor HP Sensor
Construction/Various Control
Construction
Overview
Specifications, Control Mechanisms, and Functions
Various Control
Controlling the Laser Activation Timing
Turning on and off the Laser Light
Controlling Synchronization in Main Scanning Direction
Controlling Synchronization in Sub Scanning Direction
BD Correction
APC Control
Chapter 6 Laser Exposure
Controlling the Intensity of Laser Light
Controlling the Laser Scanner Motor
Parts Replacement Procedure
After Replacing the Laser Scanner Unit
Table of Contents
Construction
Specifications, Control Mechanisms, and Functions
Overview
Printing Process
Static Image Formation Block
Developing Block
Transfer Block
Fixing Block
ITB Cleaning Block
Photosensitive Drum Cleaning Block
Driving and Controlling the High-Voltage System
Overview
Generation of the Primary Charging Bias
Generation of the Developing Bias
Generation of the Primary Transfer Bias
Generation of the Secondary Transfer Bias
Image Stabilization Control
Overview of Image Stabilization
Timing of Image Stabilization Control
Drum Film Thickness Detection
ATR Control
D-Max Control
PASCAL Control
D-Half Control
ARCDAT Control
Color Displacement Correction Control
ATVC Control
Special Control
Black Band Sequence
OHP Black Band Sequence
Colour Band Sequence
Drum Unit
Overview
Detecting the Presence/Absence of the Drum Unit
Identifying a New/Old Drum Unit
Opening/Closing the Toner Shutter
Toner Container
Overview
Supplying Toner
Detecting the Level of Toner
Toner Container Detection
Transfer Unit
Outline of the Transfer Unit
Overview
ITB Soiling Removal Sequence Control
Primary Transfer Block
Secondary Transfer Block
Secondary Transfer Block
Waste Toner Collection Mechanism
Collecting the Waste Toner
Detecting the Level of Waste Toner
Waste Toner Case Detection
Parts Replacement Procedure
Process Unit
Removing the Process Unit
Drum Unit
Removing the Drum Cartridge
Drum ITB Motor
Before Removing the Drum ITB Moto
Removing the Drum ITB Motor
Hopper Assembly
Before Removing the Hopper Supply Unit
Removing the Hopper Supply Unit
Developing Motor (Bk/Y/M/C)
Transfer Cleaning Unit
Before Removing the Transfer Cleaner Unit
Removing the Transfer Cleaner Unit
Points to Note When Replacing the Transfer Cleaner Unit
Secondary Transfer External Roller
Removing the Secondary Transfer Outer Roller
After Replacing the Secondary Transfer Roller
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Table of Contents
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SERVICE
MANUAL
COPYRIGHT ©2008 CANON INC.
CiRC3480/3480i/
3380/3080/3080i/
2880/2550/2550i/
DU7-1192-020
APRIL 2008
REV. 2
CANON CiRC3480/3380/3080/2880/2550 Series REV. 2 PRINTED IN U.S.A.
Table of
Contents
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1
2
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Advertisement
Chapters
Table of Contents
6
Chapter 8 Pickup/Feeding System
14
Chapter 18 Upgrading
26
Construction/Basic Sequence
136
Table of Contents
145
Table of Contents
173
Construction/Various Control
205
Table of Contents
222
Table of Contents
279
Table of Contents
338
Table of Contents
359
Meap
404
Rds
454
Table of Contents
466
Table of Contents
476
Making Lnitial Checks/Troubleshooting
488
Table of Contents
572
Table of Contents
602
Table of Contents
714
Table of Contents
Troubleshooting
Checking the Connection to the Network
100
Troubleshooting
498
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