2WA/2NJ/2RK
7-26
When scanning the first (front) side through DP
(2-17) The entire image is too light
When scanning the second (back) side through the DP
Step Check description Assumed cause Measures Reference
1 Correcting the original The originals are bent or
creased.
Stretch the bending or the
paper creases of the original.
2 Checking the original width
guides
The original skews. Relocate the original width
guides.
3 Adjusting the right DP
hinge position
The right DP hinge position
is not adjusted back and
forth.
Adjust the right DP hinge
position back and forth.
Adjusting
the right
DP hinge
4 Checking the DP feed belt The DP feed belt is dirty. (It
can be removed by clean-
ing.)
Clean the DP feed belt.
5 Checking the DP feed belt The DP feed belt is dirty. (It
cannot be removed by
cleaning.)
Replace the DP feed belt.
6 Checking the DP registra-
tion roller
The DP registration roller
is dirty.
Clean the DP registration
roller.
7 Checking the DP registra-
tion pulley
The operation of the DP
registration pulley is faulty.
Reattach the DP registration
pulley.
8 Executing U942 The original loop amount
before registration is
improper.
Adjust the original loop
amount at U942.
Executing
U942
Step Check description Assumed cause Measures Reference
1 Checking the table scan-
ning
The table scanning of origi-
nals is faulty.
Perform the measures for the
same abnormal image when
scanning on the contact
glass.
2 Executing U411 U411 [DP FD(ChartA)] is
not executed.
Execute U411 [DP
FD(ChartA)].
Executing
U411
3 Cleaning the DPCIS roller The DPCIS roller is dirty Clean the DPCIS roller
4 Checking the DPCIS roller The DPCIS roller does not
rotate properly.
Reattach the DPCIS roller
driving section.
5 Checking the DPCIS The DPCIS is not properly
attached.
Reattach the DPCIS. Detaching
and Reat-
taching the
DPCIS
6 Checking the DP relay
PWB
The DP relay PWB is not
properly attached.
Reattach the DP relay PWB.
7 Checking the SATA cable The connector is not prop-
erly connected.
Reinsert the connectors of
the SATA cable between the
DPSHD PWB and the DP
relay PWB.
Wiring dia-
gram
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