2-78
Confidential
■ Error code A3
The document first side rear sensor does not detect the leading edge of a document although
the document is fed farther than a designated distance.
<User Check>
- Check if the document is jammed in the ADF. If it is jammed, remove it.
■ Error code A4
The ADF cover is open.
<User Check>
- Close the ADF cover.
(Non Touch panel model)
Document Jam
Clear the scanner jam, then press the Stop Key.
(Touch panel model)
Animation is displayed.
Step Cause Remedy
1 Document first side rear actuator
catching on some position
Correct catching of the document first side
rear actuator.
2 Second side rear sensor
catching on some position
Correct catching of the second side rear
sensor.
3 ADF motor failure Replace the ADF motor.
4 Document first side rear
sensor failure
Replace the document first side rear
sensor PCB ASSY.
5 Second side rear sensor failure Replace the second side rear sensor.
6 Main PCB failure Replace the main PCB ASSY.
7 ADF drive unit failure Replace the ADF unit.
Cover is Open
Close the ADF Cover, then press the Stop Key.
Step Cause Remedy
1 Coming off of document front/
ADF open actuator
Re-assemble the document front/ADF
open actuator.
2 Harness connection failure of
document front/ADF open
sensor PCB
Check the harness connection of the
document front/ADF open sensor PCB
open and reconnect it.
3 Deformation and/or breakage of
ADF cover
Replace the ADF cover ASSY.
4 ADF open sensor failure Replace the document front/ADF open
sensor PCB ASSY.
5 Main PCB failure Replace the main PCB ASSY.
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