Controlling The Laser Scanner Motor; Laser Scanner Motor Control - Canon iR3245 Series Service Manual

Chapter 6

6.3.3 Controlling the Laser Scanner Motor

6.3.3.1 Laser Scanner Motor Control

iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
From when the laser scanner motor starts and the laser scanner motor reaches the number of target rotation to before image formation starts, the machine controls
the rotation speed by referring to the laser scanner motor rotation speed signal (FG signal). During image formation, it controls the laser scanner motor rotation
speed based on BD signal.
Laser scanner motor rotation speed is controlled by speed-up signal (ACC signal) and speed-down signal (DEC signal).
6-6
1 2
J304 , J1304
DC controller PCB
1 : iR3245 / 3235 /3230
2 : iR3225
F-6-6
0019-4287