Canon imageRunner 2022, Service Manual

Page: 140 / 418

Chapter 3
3-10
F-3-23
12) Detach the flexible cable guide [1].
- 3 screws [2]
F-3-24
13) Detach the IP cover [1].
- 15 screws [2]
F-3-25
14) Detach the image processor PCB [1].
- 5 connectors [2]
- 7 screws [3]
F-3-26
3.5.1.3 Procedure after Replacing the Image Processor
PCB
0017-2271
iR2022i / iR2025 / iR2030 / iR2018 / iR2022 / iR2018i
If you have replaced the image processor PCB with a new one, perform the
following operations:
- Using the service support tool, download the latest firmware (System/
Boot).
- Input the all value printed on the service label affixed to the rear cover.
Make the following adjustments:
- Correction of output between CIS channels
1) Enter the service mode.
Sequentially press the User Mode key " ", 2 key, 8 key, and User Mode
key " " on the operation panel.
2) Using the arrow keys on the operation panel, display "TEST MODE".
3) Press the OK key.
4) Press the 2 key. "SCAN TEST" appears.
5) Press the 1 key.
After completion of the above steps, contact sensor output correction will be
performed and parameters will be set automatically.
- Read position adjustment (Stream reading: Only when the ADF is installed)
1) Enter the service mode.
Press the User Mode key " ", 2 key, 8 key, User Mode key " " on the
operation panel of the host machine.
2) Using the arrow keys on the operation panel, display "TEST MODE".
3) Press the OK key.
4) Press the 2 key. "SCAN TEST" appears.
5) Press the 3 key. "SHEET POS ADJ" appears.
The optical system starts scanning. Several seconds later, automatic adjust-
ment of the reading position finishes and "OK" appears.
3.5.2 SDRAM
3.5.2.1 Preparation for Removing the SDRAM
0017-2250
iR2022i / iR2025 / iR2030 / iR2018 / iR2022 / iR2018i
1) Detach the rear cover.
(page 9-5)
Reference[Removing the Rear Cover]
2) Change the position of the jumper plug (JP100) [1] on the modem PCB
(capacitor PCB).
[1]
[1]
[2]
[2]
[2]
[2]
[1]
[2]
If automatic adjustment fails, "NG" appears. Perform the following
procedure:
Clean the white roller of the DADF and the document glass of the host
machine, and then retry auto adjustment.
If disconnecting/connecting the modem PCB (capacitor PCB) without
implementing this operation, the SDRAM may be broken.
[3]
[3]
[1]
[2]