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CLC 1130
Service manual
Canon 1130 Service Manual
Color laser copier
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:
Service handbook
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Service manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Service Information
Table of Contents
General Description
Features
Chapter 1 General Description
Specifications
System
Type
Functions
Others
Default Ratios
Copying Speed
CLC Paper Deck-E1
Names of Parts
External View
Cross Section
Using the Copier
Control Panel
Extended Functions
User Mode
Daily Maintenance by the User
Safety
Safety of Laser Light
CDRH Regulations
Handling the Laser Assembly
Safety of Toner
Image Formation
Outline
Auxiliary Process
Basic Operation
Chapter 2 Basic Operation
Outline of Operations
Functional Construction
Electrical Circuitry
Control Panel
Cpu Pcb
Outline
Basic Sequence of Operations
At Power-On
Basic Sequence of Operations (Copying)
Generating the Image Leading Edge Signal
Controlling Side a and Side B
Controlling Electrical Mechanisms
Controlling the Main Motor (M4)
Outline
Controlling the Drum Motor (M2)
Outline
Inputs to and Outputs from the Major Pcbs
Chapter 3 Exposure System
Operation
Outline
Basic Sequence of Operations
Sequence of Operations
Scanner Home Position Sensor and Operation
Scanner Drive System
Controlling the Scanner Motor
Outline
Operations
Changing the Reproduction Ratio
Controlling the Intensity of the Scanning Lamp
Outline
Operations
Detecting the Activation of the Scanning Lamp
Turning On/Off the Scanning Lamp
Disassembly/Assembly
IV. Disassembly/Assembly
Original Exposure System
Removing the Standard White Plate
Scanner Drive Assembly
Chapter 4 Image Processing System
Outline
CCD/CCD Drive
Controlling the CCD
CCD Driver Circuit
Analog Image Processing
Digital Image Processing
Outline
Shading Correction
3-Line CCD Position Matching Circuit
Sensor Color Correction Circuit
Original Position Detection Circuit
Black Detection Circuit and Edge/Line Width Detection Circuit
Chromatic Space Correction Circuit
Direct Mapping Circuit
Logarithmic Correction and BGR-To-YMC Conversion
BGR-To-YMC Conversion4-11
Logarithmic Correction
Toner Color Correction Circuit
Coloring/Contour Processing
Density Processing
Enlargement/Reduction, Shift, and Edit Processing
Sharpness/Filter Processing
Anti-Counterfeit Mechanism
Bank Note Detection Mechanism
Counterfeit Tracing Mechanism
Cmybk/Rgb Integration
Texture Processing
Color Conversion
Disassembly/Assembly
Electrical Parts
Laser Exposure System
Chapter 5 Laser Exposure System
Operations
Functions
Sequence of Operations (Laser Exposure System)
Generating the Bd Signal
Laser Driver Circuit
Controlling the Laser System
Controlling the Temperature of the Laser Unit
Laser Scanner Motor
Disassembly/Assembly
Controlling the Primary Charging Mechanism and
Chapter 6 Image Formation System
Image Formation System
Outline
Controlling the C Sensor
Sequence of Operations (Image Formation System)
Image Stabilization
Outline
Controlling the Surface Potential of the Drum
Outline
Contrast Potential
Controlling the Environment
Measuring the Dark Area Potential Attenuation
Potential of the Drum
Setting the Grid Bias and the Developing Bias
Potential Control Timing)
Controlling the Charging Mechanism
Controlling the Developing Bias
Operation
When Controlling the M Developing Bias
Controlling the Attraction Charging Mechanism and Transfer Charging Current
Operations
Controlling the Separation Charging Current
Operation
Controlling the External/Internal Static Eliminating Current
Operation
Controlling the Post-Cleaning Charging Current
Operations
Controlling the Temperature of the Photosensitive Drum
Control
Controlling the Power Using the Environment Switch SW6
Controlling the Primary Charging Wire Cleaning Mechanism
Operations
Conditions for Operation
Developing Assemblies
IV. Developing Assemblies
Outline
Locking the Developing Assembly
Controlling the Concentration of Color Toner
Outline
Measuring the Concentration of Color Toner on the Developing Cylinder Assembly
Drum
Of the Photosensitive Drum
Toner Concentration
Sequence of Measurement
Controlling the Concentration of Black Toner
Outline
Controlling the Supply of Black Toner
Measuring the Concentration of Black Toner (Patch Detection)
Detecting Dirt on the Window
Sequence of Operations (Measurement)
Error Code (E020) Related to Control of Toner Concentration
New Gradation Correction Control (Patch Detection; CLC1140/ 1160/1180)
New Gradation Correction Control (Patch Detection)
Outline
Timing of Measurement
Error Code Related to New Gradation Correction Control (E020)
Supplying Toner
Photosensitive Drum Cleaner Assembly
Outline
Controlling the Reciprocating Mechanism of the Cleaning Blade
Controlling the Collection of Waste Toner
Checking the Waste Toner Case (Full)
Detecting a Waste Toner Feedscrew Lock Condition
Disassembly/Assembly
Photosensitive Drum Assembly
Construction
Removing the Photosensitive Drum
When Replacing the Photosensitive Drum
Cleaning the Photosensitive Drum
Removing the Drum Heater
Removing the Drum Heater Brush
Pre-Exposure Lamp
Removing the Pre-Exposure Lamp Unit
Charging Assembly
Assembly
Outline
Removing the Grid Plate
Removing the Primary Charging Assembly
Removing the Post-Cleaning
Charging Assembly
Adjusting the Height of the Charging Wire
Developing Assemblies
Construction of the Y/M/C Developing Assembly
Construction of the Bk Developing Assembly
Removing the Developing Assembly
Removing the ATR Sensor of the Y/M/C Developing Assembly
Removing the Developing Cylinder
Adjusting the S-B Gap
Replacing the Developer
Hoppe Assembly
Opening the Hopper
Removing the Hopper Unit
Removing the Hopper Motor
Removing the Toner Supply Clutch
Photosensitive Drum Cleaner Assembly
Removing the Photosensitive Drum Cleaner Unit
Replacing the
Removing the
Sheet
Assembly No. 2 Scoop-Up
Points to Note When Handling the Pre-Cleaning Sensor Assembly
Pre-Cleaning Sensor Assembly No. 2 Scoop-Up Sheet Assembly
Replacing the No. 2 Scoop-Up Sheet Assembly
Sheet Assembly
Black Toner Concentration Sensor Assembly
Removing the Black Toner Concentration Sensor
Removing the No. 2 Blade
Removing the Gradation Sensor (CLC1140/1160/ 1180 Only)
Cleaner Blade Reciprocating Motor
6-82A
Assembly
Removing the Reciprocating Motor
Waste Toner Feeding Assembly
Feedscrew Assembly
Removing the Waste Toner
Developing Drive Assembly
Developing Drive
Removing the Developing Drive Assembly and the Developing Assembly Rail
Assembly
Outline
Chapter 7 Pick-Up / Feeding System
Pickup Assembly
Pickup from the Cassette
Outline
Lifter Movement
Outline
Detecting the Level of Paper
Detecting the Presence/Absence of Paper
Detecting the Paper Size Inside the Cassette
Fixed-Size Type Cassette
Universal Type Cassette
Paper Sizes and Cassettes
Paper Width Basic Value
Sequence of Operations (Pickup from the Cassette)
Pickup from the Multifeeder
Operations
Detecting the Size of Paper
Movement of the Lifter
Sequence of Operations
Picking up Transparencies
Duplexing Unit (Clc1150/1180 Only)
Outline
Basic Construction
Arrangement of Rollers and Sensors
Stacking Paper
Movement of the Paper Jogging Guide Plate
Operations
Sequence of Operations (1St Side of a Double-Sided Copy)
Re-Pickup from the Duplexing Unit
Operations
Sequence of Operations
Controlling the Registration/Attraction Mechanism
Outline
Locking and Unlocking the Registration Roller
Controlling the Attraction Mechanism
Sequence of Operations (Registration/Attraction)
Transfer Drum
Outline
Controlling the Locking Cam Inside the Transfer Drum
Controlling Separation
Outline
Separating Paper
Cleaning the Separation Drum Sheet
Outline
External Brush
Polishing Roller
Sequence of Operations (Transfer Drum)
Detecting Jams
Outline
Sequence of Operations (Jam Detection)
Disassembly/Assembly (Pick-Up Assembly)
Pickup Assembly
Construction
Removing the Cassette Pickup Assembly/Duplexing Pickup Assembly
Pickup Assembly
Removing the Cassette Pickup Assembly Feed Roller/Separation Roller
Removing the Pickup Roller
Adjusting the Pressure of the Separation Roller
Position of the Cassette Pickup Assembly and Pickup Roller Solenoid (SL7, SL8, SL9)
Registration of the
Removing the Duplex Unit Separation Roller
Removing the Duplexing Unit Feed Roller
Removing the Duplexing Unit Pickup Roller
Multifeeder
Removing the Multifeeder Assembly
Removing the Pickup Roller, Feed Roller, and Separation Roller