Parts Replacement Procedure; Laser Scanner Unit; Removing The Front Cover Unit; Removing The Left Cover - Canon iR3570 Service Manual

Chapter 6
[1]
LOSED
[3] [1]
[2]
[1] Laser shutter
[2] Laser shutter link (operates in conjunction with front cover)
[3] Laser unit

6.4 Parts Replacement Procedure

6.4.1 Laser Scanner Unit

6.4.1.1 Removing the Front Cover Unit

iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N /
/ iR4570N / iR2230 / / / iR3530 /
1) Open the front cover [1].
2) Remove the face cover rubber [1].
3) Remove the binding screw [2].
4) Remove the RS tightening screw [3].
5) Detach the front cover unit [4] by moving it in the direction of the arrow.
6-6
[2]
DOOR OPEN
[3]
F-6-8
F-6-9

6.4.1.2 Removing the Left Cover

iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N /
/ iR4570N / iR2230 / / / iR3530 /
1) Remove the 4 screws [1], and detach the left cover [2].
[1]
[1]

6.4.1.3 Removing the Laser Unit

iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N /
/ iR4570N / iR2230 / / / iR3530 /
1) Open the 2 wire saddles [1], and disconnect the 2 connectors [2].
0007-8348
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-6-10
[2]
[1]
[1]
F-6-11
F-6-12
0007-8349
0007-8350