2WA/2NJ/2RK
7-32
(3-2) Colored background
Step Check description Assumed cause Measures Reference
1 Checking the settings The Background Density
Adjustment is not set.
Set [Original Image] in [Sys-
tem Menu/Counter] key >
[Common Settings] > [Func-
tion Defaults].
2 Checking the settings The background density is
dark.
Set [Original Image] in [Sys-
tem Menu/Counter] key >
[Common Settings] > [Func-
tion Defaults].
3 Setting Background Den-
sity Adjustment
The Background Density
Adjustment is not set.
Set [Background Density
Adj.] to [Auto] in [Color/Image
Quality].
4 Setting Background Den-
sity Adjustment
The original background
density is dark. The back-
ground density adjustment
is dark.
Set [Background Density
Adj.] to [Manual] in [Color/
Image Quality], and adjust
the background density.
5 Checking the original The original is raised at
scanning.
Set the original during press-
ing.
6 Checking the contact glass The shading plate is dirty. Clean the shading plate at
the backside of the contact
glass.
7 Executing U411 The image is not adjusted. Execute U411 [Table(Chart
A)].
Executing
U411
8 Checking the home posi-
tion sensor
The home position sensor
is not properly attached.
Reattach the home position
sensor.
9 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
10 Checking the lamp unit
assy (mirror frame A, B).
The lamp unit assy (mirror
frame A, B) is not properly
attached.
Reattach the lamp unit assy
(mirror frame A, B).
11 Checking the ISU The ISU is attached
improperly.
Reattach the ISU. Detaching
and Reat-
taching the
ISU
12 Replacing the lamp unit The LED PWB is faulty. Replace the lamp unit. Detaching
and Reat-
taching the
lamp unit
13 Replacing the ISU The CCD PWB is faulty. Replace the ISU. Detaching
and Reat-
taching the
ISU