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LBP-NX PCB
Service manual
Canon LBP-NX PCB Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
General Description
Features
Chapter 1 Subchapter J
Specifications
Safety Information
Parts of the Printer
Operation
Chapter 2 Operation and Timing
Basic Operation
Laser/Scanner System
Laser/Scanner System
Scanning Exposure
Laser Control Circuit
Scanner Drive
Scanner Motor Control Circuit
Image Formation System
Outline
Printing Process
Operation
High-Voltage Power Supply
Pick-Up /Feed System
Unit
Power Supplies
System Interface
Chapter 3 The Mechanical System
Externals
Covers and Panels
Bottom Box Tray
Control Panel
Fan Motor Unit
Upper Unit
Drive System
Main Motor Unit
Paper Transport System
Transfer Guide Unit
Second-Pass Pick-Up Unit
Fixing System
Fixing Unit
Exposure SYSTEM
Laser/Scanner Unit
Electrostatic Image/Developing/Cleaning System
EP-N Cartridge
Electrical Components
DC Controller PCB
AC Driver PCB
DC Driver PCB
Low-Voltage Power Supply Unit
High-Voltage Power Supply Unit
Motor Driver PCB
Paper Feed PCB
Choosing a Location
Unpacking and Installation
Storage and Handling of Ep-Ncartridges
Maintenance and Servicing
Parts Replacement Schedule
Expectedservicelifes of Consumables
Regular Servicing
Outline
Basic Procedures
Service Checkpoints
Maintenance by Customer
List of Standard Tools
List of Lubricants, Cleaners
Special Tools
Troubleshooting
Introduction
Initial Check
Basic Procedure
How to Use the Troubleshooting Tables
Special Tools
Printer Driver Checker
Chapter 2 IV-F-2 Fixing Roller Heater Malfunction Detection
Adjustment
Test Printing
Checking the Nip Width
Measurement and Adjustment
Adjustment of the Installation Position of the Registration Spring Clutch
Adjustment of the Installation
Position of the Solenoid
Electrical Adjustment
Image Defects
Examples of Image Defects
Imagedefects
Troubleshooting Image Defects
EP-N Cartridges
Troubleshooting Malfunctions
Paper Transport Troubleshooting
Print Paper Jams
VD. Assembly Location Diagram
Assembly Location Diagram
Location of Electrical Parts/Function
Parts/Function
DC Controller PCB
Variable Resistors, Leds, Test Pins, Jumpers, and Switches on Pc Boards
Paper Feed PCB
General Timing Chart
List of Signals/Commands
DC Controller Pcb
Appendix
Paper Feed Pcb
DC Driver Pcb
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SERVICE
MANUAL
REVISION 0
canon
SEPT. 1991
RYS· 1349-000
COPYRIGllT
©
1991 CANON INC.
CANON LBP.NX PCB SEPT.1991 REV.0 PRINTED IN JAPAN llMPRIME AU JAPON)
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Table of Contents
Troubleshooting
TROUBLESHOOTING
113
How to Use the Troubleshooting Tables
115
Troubleshooting Image Defects
129
TROUBLESHOOTING MALFUNCTIONS
141
PAPER TRANSPORT TROUBLESHOOTING
153
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