2WA/2NJ/2RK
7-9
When scanning the first (front) side through DP
(2-4) Blurred characters
When scanning the second (back) side through the DP
9 Replacing the main PWB The main PWB is faulty. Replace the main PWB. Detaching
and Reat-
taching the
main PWB
Step Check description Assumed cause Measures Reference
1 Checking the original The original is dirty. Replace the original.
2 Checking the slit glass The slit glass is dirty. Clean the slit glass.
3 Checking the FFC The FFC is not properly
connected, or it is faulty.
Reconnect the following FFC.
When the FFC terminals are
peeled off or deformed or the
FFC is broken, replace the
FFC. • CCD PWB - Engine
PWB
Wiring dia-
gram
4 Checking the ISU The CCD PWB is faulty. Replace the ISU. Detaching
and Reat-
taching the
ISU
5 Checking the engine PWB The connectors or the
FFCs on the engine PWB
are not properly con-
nected. Or the wires, FFCs
or the engine PWB are
faulty.
Reconnect the connectors on
the engine PWB. Then, fix or
replace the wires if they are
pinched by the other part or if
they have any damage.
When the issue is not
resolved after that, replace
the engine PWB.
Detaching
and Reat-
taching the
engine
PWB
6 Checking the main PWB The connectors on the
main PWB are not properly
connected, or the wires or
the main PWB are faulty.
Reconnect the connectors on
the main PWB. Then, fix or
replace the wires if they are
pinched by the other part or if
they have any damage.
When the issue is not
resolved, replace the main
PWB.
Detaching
and Reat-
taching the
main PWB
Step Check description Assumed cause Measures Reference
1 Measures for the same
image failure when scan-
ning the first (front) side
through the DP
Assumed cause of the
same image failure when
scanning the first (front)
side through the DP
Perform the measures for the
same image failure when
scanning the first (front) side
through the DP.
Step Check description Assumed cause Measures Reference