Canon LBP253 Service Manual and Parts Catalog


Accurate, clear and concise text, combined with detailed illustrations, lists of error code, instruction and diagrams, guide you through procedure of repair, remediate, maintenance and adjustments your copier, printer or scanner.
Present service manual and parts catalog Canon LBP253 contain clear instructions and procedures on how to fix the problems occurring in your equipment.
Format of the manual: PDF, makes it easy to navigate, instant download and print. English language.
Table of contents:

SAFETY PRECAUTIONS
Laser Safety
How to Handle the Laser Scanner Unit
Toner Safety
About Toner
Handling Adhered Toner
Notes When Handling a Lithium Battery
Notes on Assembly/Disassembly

1. PRODUCT OVERVIEW
Product Lineups
Main unit
Options
Features
Features
Product Specifications
List of Parts
External View
Cross Sectional View
Operation
Operation Panel

2. TECHNOLOGY
Basic Operation
Function Structure
Sequence of Operation
Outline
Laser Exposure System
Outline
Optical Unit Failure Detection
Image Formation System
Outline
Image Formation Process
High-voltage Power Supply
Fixing System
Outline
Fixing control circuit
Pickup Feeding System
Outline
Jam Detection
Controller System
Outline
DC Controller
Low-voltage Power Supply
Energy Saving Function
Embedded RDS
Product Overview
Service cautions
E-RDS Setup
FAQ
Troubleshooting
Error code and strings
Setting Information Export/Import Function (DCM)
Function Overview
Specifications
Limitations
Procedure for Exporting/Importing Service Mode Setting Information
List of Items Which Can Be Imported

3. PERIODICAL SERVICE
Periodically Replaced Parts
Consumable Parts
Periodical Service
Cleaning

4. DISASSEMBLY/ASSEMBLY
Outline
List of Parts
External View
List of Main Unit
Motor / Fan
Solenoid
Heater/Thermo Switch/Thermistor/Switch
Sensor
PCB
Connector Layout Drawing
Connector List
External Cover, Internal Cover
Removing the Left Cover
Removing the Right Cover
Removing the Rear Cover Unit / Duplex Feed Unit
Removing the Upper Cover Unit
Removing the Cartridge Cover Unit
Controller System
Removing the Main Controller Board
Remove the Sleep Interface PCB
Remove the Duplex Reverse Sensor Unit
Remove the All-Night Power Supply PCB
Remove the Power Supply PCB
Removing the Engine Controller Board
Removing the Control Panel Unit
Removing the Main Motor
Removing the Main Fan
Removing the Main Drive Unit
Removing the Duplex Drive Unit
Removing the Cassette Pickup Solenoid
Removing the Multi-purpose Solenoid
Removing the Duplex Reversal Solenoid
Removing the Wireless LAN PCB
Laser Exposure System
Removing the Laser Scanner Unit
Image Forming System
Removing the Transfer Roller
Removing the Registration Unit
Fixing System
Removing the Fixing Unit
Paper Pickup/Transport/Output System
Removing the Cassette Pickup Roller
Removing the Cassette Separation Pad
Removing the Multi-purpose Pickup Roller
Removing the Multi-purpose Separation Pad

5. TROUBLESHOOTING
Trouble Shooting
Test Pages
Confirming nip width
Version Upgrade
Overview
Version Upgrade Using UST
Upgrading via Internet
Corrective Actions
Image Defects
Debug Log
Function Overview
Conditions for collecting logs
Collection procedure

6. ERROR/JAM/ALARM
Error Codes
Overview
Error Codes
JamCode
Alarm Code

7. SERVICE MODE
Service Mode
Overview
COPIER
TESTMODE
SERVICE REPORT
APPENDICES
Service Tools
Special Tools
Solvents and Oil List
General Circuit Diagram
Print Sequence
Backup Data
Soft Counter Specifications

Parts Catalog