2L6/2N6/2N5/2N4
1-4-224
3. DP-scanning second (back) page (with a dual scan DP installed)
9
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 1-3-55)
10
ISC PWB The ISC PWB is defective. Replace the ISC PWB and perform U411.
(see page 1-3-173)
11
CCD PWB The CCD PWB is defective. Replace the ISU and perform U411.
(see page 1-3-173)
12
Main PWB The main PWB is defective. Replace the main PWB.(see page 1-5-72)
Defective part Check description Corrective Action
1
Adjustment of the
scanner
Check if the outer areas of the
original document have streaks
or lines.
1. Perform maintenance mode U072, CIS.
(see page 1-3-65)
2. Perform maintenance mode U411, DP
Auto Adj.
3. Perform maintenance mode U411, DP
FaceDown(Chart1)_All.
(see page 1-3-173)
2
DP_CIS glass Check whether the CIS glass of
the DP is contaminated.
If the CIS glass of the DP is contaminated,
clean. Or, if it has scuffs, replace.
3
DP guide plate Check whether the DP guide
plate is dirty.
If the guide plate is dirty, clean the guide plate
and the conveying guide.
4
DP regist pulley The DP regist pulley is contaimi-
nated.
If the DP regist pully is contaminated, clean the
DP regist pulley.
5
White-reference
roller(Counter the
CIS)
Check if the white reference
roller is contaminated on its sur-
face or damaged.
If the white-reference roller is dirty, clean. Or, if
the roller is damaged, replace.
6
White streaks com-
pensation settings
Check the white streaks com-
pensation settings.
If the white streaks compensation is
insufficient, perform maintenance mode
U091.(see page 1-3-71)
7
DP_CIS unit Check the location the CIS unit
is mounted.
Re-mount the CIS unit if it is hanged off.
8
DP_SHD PWB Check the CIS and the SHD
PWB is properly connected.
Reinsert the connector if the PWB was loosely
inserted.If not cured, replace the PWB.
9
DP_CIS CIS is defective. Replace the CIS and perform U091 and U411.
(see page 1-3-71,1-3-173)
10
Main PWB The main PWB is defective. Replace the main PWB.(see page 1-5-72)
Defective part Check description Corrective Action