2WA/2NJ/2RK
7-39
(3-10) Moire
(3-11) Blank image or entirely black image
Step Check description Assumed cause Measures Reference
1 Checking the settings The original imaging qual-
ity is not properly set.
(Moire changes depend-
ing on the print quality.)
Set [Original Image] in [Sys-
tem Menu/Counter] key >
[Common Settings] > [Func-
tion Defaults].
2 Checking the original The original is not properly
set. (Moire appears in the
original scanning direc-
tion.)
Rotate the originals in 90
degrees and reset them.
3 Executing U065 The ratio in the main scan-
ning direction is large.
(This problem occurs when
the print ratio is set as
100%.)
Change the value at U065
[Main Scan] to reduce the
scanner magnification in the
main scanning direction.
Executing
U065
4 Executing U411 Each adjustment of the
scanner section is incor-
rect
Execute U411 [Table(Chart
A)].
Executing
U411
Step Check description Assumed cause Measures Reference
1 Checking the original The originals were set
upside down.
Reset the original to correct
the front and back direction.
2 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
3 Checking the ISU The CCD PWB is faulty. Replace the ISU. Detaching
and Reat-
taching the
ISU
4 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching
and Reat-
taching the
engine
PWB
5 Replacing the main PWB The main PWB is faulty. Replace the main PWB. Detaching
and Reat-
taching the
main PWB