Operation Panel Unit; Preparation For Removing The Control Panel Unit; Removing The Control Panel Unit; Scnt Board - Canon L90 Series Service Manual

Chapter 7
When mounting the cartridge cover, be sure to fit the 2 fixing assembly
release hooks [2] in the 2 hook holes [1] found in the cartridge cover.
[1] [2]
Bad position

7.2.8 Operation Panel Unit

7.2.8.1 Preparation for Removing the Control Panel Unit

1) Remove the document feed tray and the paper tray cover. (page 7-2)Ref-
erence[Removing the Document Feed Tray and the Paper Tray Cover]
2) Detach the right cover. (page 7-2)Reference[Detaching the Right Cov-
er]
3) Detach the left cover. (page 7-2)Reference[Detaching the Left Cover]
4) Detach the front cover. (page 7-1)Reference[Detaching the Front Cov-
er]
5) Detach the rear cover. (page 7-1)Reference[Detaching the Rear Cover]
6) Detach the cartridge cover. (page 7-3)Reference[Detaching the Car-
tridge Cover]

7.2.8.2 Removing the Control Panel Unit

1) Remove the flat cable [1].
2) Remove the screw [2].
3) Free the claw [3], and detach the control panel unit [4].
[4]
[A]
[3]

7.2.9 SCNT Board

7.2.9.1 Preparation for Removing the SCNT Board

1) Remove the document feed tray and the paper tray cover. (page 7-2)Ref-
erence[Removing the Document Feed Tray and the Paper Tray Cover]
2) Detach the right cover. (page 7-2)Reference[Detaching the Right Cov-
er]
3) Detach the left cover. (page 7-2)Reference[Detaching the Left Cover]
4) Detach the rear cover. (page 7-1)Reference[Detaching the Rear Cover]

7.2.9.2 Removing the SCNT Board

1) Remove the flat cable [1], and disconnect the 7 connectors [2].
7-4
[1] [2]
Good position
[2]
[1]
F-7-10
2) Remove the 6 screws [3], and detach the SCNT board [4].
[1] [2]
[2]

7.2.10 DCNT Board

7.2.10.1 Preparation for Removing the DCNT Board

1) Remove the document feed tray and the paper tray cover. (page 7-2)Ref-
erence[Removing the Document Feed Tray and the Paper Tray Cover]
2) Detach the right cover. (page 7-2)Reference[Detaching the Right Cov-
0018-3956
er]
3) Detach the left cover. (page 7-2)Reference[Detaching the Left Cover]
4) Detach the front cover. (page 7-1)Reference[Detaching the Front Cov-
er]
5) Detach the rear cover. (page 7-1)Reference[Detaching the Rear Cover]
6) Detach the cartridge cover. (page 7-3)Reference[Detaching the Car-
tridge Cover]
7) Remove the control panel unit. (page 7-4)Rference[Removing the Con-
trol Panel Unit]
8) Detach the upper cover. (page 7-3)Reference[Detaching the Upper Cov-
er]
9) Remove the reader unit. (page 2-5)Reference[Removing the Reader
0018-3958
Unit]

7.2.10.2 Removing the DCNT Board

1) Remove the 2 screws [1], and detach the DCNT cover 1 [2].
2) Remove the 2 screws [3], and detach the DCNT cover 2 [4].
[3]
[1]
3) Disconnect the flat cable [1] and remove the 2 cable guides [2].
0018-3964
0018-3969
[3] [2] [1]
[3] [2] [4]
F-7-11
[4] [3]
[2]
F-7-12
[2]
[3]
[3]
0018-3973
0018-3980