Kyocera TASKalfa 6501i Service Manual page 534

Defective part
Mirror
3
Lamp unit
4
Lamp unit
5
ISU
6
Shading plate
7
ISC PWB
8
CCD PWB
9
Main PWB
10
3. DP-scanning second (back) page
Defective part
White-reference
roller (Counter the
1
CIS)
DP_CIS glass
2
White streaks com-
3
pensation settings
DP_CIS unit
4
DP_SHD PWB
5
DP_CIS
6
Main PWB
7
Check description
Check whether the mirrors are
dirty.
Check that the lamp unit is con-
taminated with dusts.
Check whether the LED cover is
hanged off.
Check whether the lens cover is
hanged off.
Check whether the shading plate
is dirty.
The ISC PWB is defective.
The CCD PWB is defective.
The main PWB is defective.
Check description
Check if the white reference
roller is contaminated on its sur-
face or damaged.
Check whether the CIS glass is
contaminated.
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.
If the mirrors are dirty, clean the three mirrors.
If dusts are observed on the lamp unit, remove
the dusts in the light paths.
Re-mount the LED cover if it is hanged off.
Re-mount the lens cover if it is hanged off.
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 1-3-50)
Replace the ISC PWB and perform U411.
(see page 1-3-152)
Replace the ISU and perform U411.
(see page 1-3-152)
Replace the main PWB.(see page 1-5-74)
If the white-reference roller is dirty, clean. Or, if
the roller is damaged, replace.
If the CIS glass is contaminated, clean the CIS
glass and conveying guide. If it has a scuff,
replace.
Check the white streaks compensation
settings.
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)
1-4-174
Corrective Action
Corrective Action
2N8/2N7