Laser Exposure System
Overview
The Laser Scanner system forms a latent image on the Photosensitive Drum according to the video signal sent from the Main
Controller.
The Laser Scanner Unit consists of the Laser Unit and the Scanner Motor Unit, and is controlled by the signal input from the DC
Controller.
The following shows an outline drawing of the Laser Scanner Unit.
BD PCB
Scanner mirror
Scanner motor unit
Photosensitive drum
Laser driver
Main Controller
DC controller
LASER CONTROL
signal
VIDEO signal
SCANNER MOT
OR
SPEED CONTROL
signal
BD INPUT
signal
Laser Scanner Motor Control
Rotates the Polygon Mirror at a specified speed.
2. Technical Explanation (Device)
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Summary of Contents for LBP351 Series
Page 1: ...Revision 4 0 LBP351 352 Series Service Manual ...
Page 12: ...Product Overview 1 Product Lineups 6 Specification 7 List of Parts 11 ...
Page 140: ...3 Remove the Main Drive Unit 1 4 Screws 2 1 2 2 2 2 4x 5 Parts Replacement and Cleaning 133 ...
Page 147: ...Adjustment 6 Actions after Replacement 141 ...
Page 149: ...Troubleshooting 7 Test Print 143 Troubleshooting 147 Obtaining Debug Log 149 ...
Page 160: ...Error Jam Alarm 8 Overview 154 Error Code Details 155 Jam Code 160 Alarm Code 163 ...
Page 171: ...Service Mode 9 Overview 165 Service Mode 169 ...