2NM/2NX/2NY/2NZ/2P0/2P6
1-4-55
2. DP-scanning
Defective part Check description Corrective Action
1
Original document Check whether the original
document is dirty.
If the original document is dirty, replace.
2
Original document Check if the size of the original
document and its reference size
match.
If the size of the original document and its
reference size do not match, set the correct
document size or activate border erasure.
3
Scanning position
of the DP
Check whether the scanning
position of the DP is wrong.
If the scanning position of the DP is shifted,
perform maintenance mode U068, DP Read.
(see page 1-3-31)
4
Adjustment of the
scanner
Check whether the outer areas
of the original document have
streaks or lines.
1. Perform maintenance mode U067,
Front.(see page 1-3-30)
2. Perform maintenance mode U411, table
(Chart1)_Input.
(see page 1-3-54)
5
Slit glass, Contact
glass
Check whether the slit glass and
contact glass are dirty.
If the slit glass and contact glass are dirty,
clean the contact glass, the slit glass, the
bottom part of the shading plate, and the
conveying guide.
6
Mirror
Check whether the mirrors are
dirty.
If the mirrors are dirty, clean the three mirrors.
7
Lamp unit Check that the lamp unit is con-
taminated with dusts.
If dusts are observed on the lamp unit, remove
the dusts in the light paths.
8
Shading plate Check whether the shading plate
is dirty.
If the shading plate is dirty, perform
maintenance mode U063 to modify the
shading position. If it does not cure, replace the
contact glass assembly.
(see page 1-5-16)
9
CCD sensor
Check that the CCD sensor
glass is contaminated with dusts.
If dusts are observed on the CCD sensor
glass,remove the dusts by an air blower.
10
CCD PWB The CCD PWB is defective. Replace the ISU and perform U411.
(see page 1-3-54)
11
Control PWB The control PWB is defective. Replace the control PWB.(see page 2-2-12)
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