Kyocera TASKalfa 6501i Service Manual page 537

3. DP-scanning second (back) page
Defective part
Adjustment of the
scanner
1
DP_CIS glass
2
DP guide plate
3
DP regist pulley
4
White-reference
roller (Counter the
5
CIS)
White streaks com-
pensation settings
6
DP_CIS unit
7
DP_SHD PWB
8
DP_CIS
9
Main PWB
10
Check description
Check if the outer areas of the
original document have streaks
or lines.
Check whether the CIS glass of
the DP is contaminated.
Check whether the DP guide
plate is dirty.
The DP regist pulley is contami-
nated.
Check if the white reference
roller is contaminated on its sur-
face or damaged.
Check the white streaks com-
pensation settings.
Check the location the CIS unit
is mounted.
Check the CIS and the SHD
PWB is properly connected.
CIS is defective.
The main PWB is defective.
1. Perform maintenance mode U072, CIS.
(see page 1-3-60)
2. Perform maintenance mode U411, DP
Auto Adj.
3. Perform maintenance mode U411, DP
FaceDown(Chart1)_All.
(see page 1-3-152)
If the CIS glass of the DP is contaminated,
clean. Or, if it has scuffs, replace.
If the guide plate is dirty, clean the guide plate
and the conveying guide.
Clean the DP regist pulley.
If the white-reference roller is dirty, clean. Or, if
the roller is damaged, replace.
If the white streaks compensation is
insufficient, perform maintenance mode
U091.(see page 1-3-65)
Re-mount the CIS unit if it is hanged off.
Reinsert the connector if the PWB was loosely
inserted.If not cured, replace the PWB.
Replace the CIS and perform U091 and U411.
(see page 1-3-65,1-3-152)
Replace the main PWB.(see page 1-5-74)
1-4-177
Corrective Action
2N8/2N7