3-45
Confidential
9.9.11 ADF cover/document detection sensor PCB ASSY / First side document
scanning position sensor PCB ASSY / Second side document scanning
position sensor PCB ASSY (duplex scanning models only)
Fig. 3-49
(1) Open the shading film 1, and push the rib to open it. Remove the ADF cover/document
detection sensor PCB ASSY from the lower ADF chute.
(2) Disconnect the ADF cover/document detection sensor harness from the ADF cover/
document detection sensor PCB ASSY.
Fig. 3-50
Memo:
• For duplex scanning models, these parts can be replaced without disassembling
the second side CIS unit. In this case, move the upper ADF chute to the position
shown in the illustration below to make replacement easier.
ADF unit
Upper ADF chute
Second side CIS flat cable
ADF cover/document detection sensor PCB ASSY
Shading film 1
Lower ADF chute
Rib
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