Kyocera TASKalfa 6501i Service Manual page 543

Defective part
White-reference
roller (Counter the
3
CIS)
DP_CIS
4
Main PWB
5
Check description
Check that the white-reference
roller is smoothly operative.
CIS is defective.
The main PWB is defective.
If the white-reference roller does not rotate
smoothly, re-install.
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)
1-4-183
Corrective Action
2N8/2N7