No Image Appears (Entirely Black) - Kyocera ECOSYS M3040dn Service Manual

(2) No image appears (entirely black).

Print example
1. Table scanning
Defective part
FFC cable CCD
1
CCD PWB
2
Control PWB
3
2. DP-scanning
Defective part
Scanning position
of the DP
1
FFC cable CCD
2
CCD PWB
3
Control PWB
4
Check description
Check the FFC cable between
the CCD and control PWB is
properly connected. Or, verify
conduction of the wire.
The CCD PWB is defective.
The control PWB is defective.
Check description
Confirm the value using mainte-
nance mode U068, DP Read.
Check the FFC cable between
the CCD and control PWB is
properly connected. Or, verify
conduction of the wire.
The CCD PWB is defective.
The control PWB is defective.
Reinsert the connector if its connection is
loose. Or, if conduction is lot, replace the wire.
Replace the ISU and perform U411.
(see page 1-3-54)
Replace the control PWB.(see page 2-2-12)
If a large value is observed in maintenance
mode U068, DP Read, perform
adjustment.(see page 1-3-31)
Reinsert the connector if its connection is
loose. Or, if conduction is lot, replace the wire.
Replace the ISU and perform U411.
(see page 1-3-54)
Replace the control PWB.(see page 2-2-12)
1-4-47
2NM/2NX/2NY/2NZ/2P0/2P6
Corrective Action
Corrective Action