Procedure; Removing The Copyboard Glass(Mf4780W/Mf4770N/Mf4750/Mf4730); Preparation - Canon imageCLASS MF4890dw Service Manual

4
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Glass(MF4780w/MF4770n/MF4750/MF4730) > Procedure
Removing the Copyboard Glass(MF4780w/MF4770n/
MF4750/MF4730)

■ Preparation

1) Remove the left cover.
2)Remove the SADF unit and reader unit
3)Remove the SADF unit.

■ Procedure

1)Remove the 4 screws(TP)[1]
[1]
x4
2)Remove the copyboard guide holder[1]
• 1 claw[2]
• 1 protrusions[3]
[2]
4 Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Glass(MF4780w/MF4770n/MF4750/MF4730) > Procedure
[1]
F-4-247
[1]
[3]
F-4-248
3)Remove the reader upper cover[1]
• 6 claws[2]
• 1 hook[3]
[2]
x6
[2]
Caution.
Place the detached copyboard glass cover on a cloth etc. to avoid damaging the
bottom sheet.
When removing the copyboard glass, take care not to touch the glass surface.
If the surface becomes dirty, clean it with lens-cleaning paper.
[1]
[3]
4-104
F-4-249
4-104