COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000CHAPTER 4 IMAGE FORMATION SYSTEM4-18 P3. Controlling Charging3.1 Controlling Pre-Exposure LED3.1.1 OutlineThe machine is equipped with a pre-exposure LED array to prevent adhesion of excesstoner to the photosensitive drum because of residual charge, and its system of control servesthe following functions:1. Turning On/Off the Pre-Exposure LED ArrayF04-301-01The system uses the following signals:[1] pre-exposure LED control signal: when ‘0’, LED turns on.DC controller PCBPre-exposure lampJ103A24VPEXP* [1]123456789101112131415Download Free Service Manual at http://printer1.blogspot.com
