Canon ImageCLASS MF4690 Service Manual - page 112
Chapter 10
10-2
10.4.3 Cleaning Method (Reader Unit)
0016-1878
F-10-1
[1] Document pickup roller
Open the ADF and wipe off the smudge with the soft dry cloth.
[2] Document feed roller
Open the ADF and wipe off the smudge with the soft dry cloth.
[3] Scraper
Open the ADF and wipe off the smudge with the soft dry cloth.
[4] Document delivery roller
Wipe off the smudge with the soft dry cloth.
[5] Backside of copyboard cover
Open the copyboard cover and wipe off the smudge with the soft dry cloth.
[6] Copyboard glass
Open the copyboard cover and wipe off the smudge with the soft dry cloth.
[7] ADF reading area
Open the copyboard cover and wipe off the smudge with the soft dry cloth.
10.4.4 Cleaning Method (Pressure Roller)
0016-1879
MEMO:
Cleaning the roller takes approximately 130 seconds.
1) Press [Additional Functions].
2) Press [] to select
3) Load a sheet of blank A4 paper (standard paper) in the multi-purpose tray.
F-10-2
4) Press [] to select
Cleaning starts. When finished, the display returns to standby mode.
[1]
[2]
[3]
[4]
[6]
[5]
[7]