Canon iR3570 Series, Service Manual

Page: 272 / 722

Chapter 7
7-36
F-7-192
7.12.9.10 Removing the Laser Unit
0007-8371
iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N /
/ iR4570N / iR2230 / / / iR3530 /
1) Open the 2 wire saddles [1], and disconnect the 2 connectors [2].
F-7-193
When you have disconnected the connector [1], be sure to take care so that
it will not come into contact with the PCB that is mounted to the laser scanner
unit. (The PCB is equipped with a laser intensity adjustment variable resis-
tor. Contact with the PCB can change the adjustment setting.)
2) Open the wire saddle [1], and disconnect the connector [2].
F-7-194
3) Remove the screw [1], and detach the fixing [2].
F-7-195
4) Lift the front of the laser unit [1], and slide it to the front.
F-7-196
When sliding out the laser scanner unit, be sure to take care not to touch the
PCB mounted to the laser scanner unit. (The PCB is equipped with a laser
scanner intensity adjustment variable resistor, and contact with the PCB can
change the adjustment setting.)
7.12.9.11 Removing the Hopper Assembly
0007-8372
iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N /
/ iR4570N / iR2230 / / / iR3530 /
1) Remove the inside base cover [1] and the inside right color [2].
F-7-197
2) Disconnect the 3 connectors [1] found at the front and the connector [2]
found at the rear.
[1]
[1]
[1]
[2]