Kyocera TASKalfa 7002i Service Manual page 1254

C3310: CIS AGC error
The CIS could not get the normal white reference value after the AGC retry.
Step Check description
1 Releasing the partial oper-
ation
2 Cleaning the CIS glass
and the CIS roller
3 Firmware upgrade
4 Checking the DPSHD
PWB
5 Replacing the DPSHD
PWB
6 Replacing the DPCIS
7 Checking the connection
8 Replacing the DP relay
PWB
9 Replacing the main PWB
Assumed cause
The partial operation is
executed.
The CIS glass or the CIS
roller is dirty.
The firmware is not the lat-
est version.
The DPSHD PWB is not
properly connected.
The DPSHD PWB is faulty. Replace the DPSHD PWB.
The DPCIS is faulty.
The connector is not prop-
erly connected. Or, the
SATA cable is faulty.
The DP relay PWB is
faulty.
The main PWB is faulty.
7-394
Measures
Execute resetting the partial
operation at U906.
Clean the CIS glass and the
CIS roller.
Upgrade the DP firmware to
the latest version.
Reconnect the DPSHD PWB
to the DPCIS.
Replace the DPCIS, and then
execute U091 and U411.
Clean the terminal of the fol-
lowing SATA cable connector
and reconnect the connec-
tors. If there is no continuity,
replace the SATA cable. •
DPSHD PWB - DP relay
PWB • DP relay PWB - Main
PWB
Replace the DP relay PWB.
Replace the main PWB.
2WA/2NJ/2RK
Reference
Executing
U906
Firmware
Update
Detaching
and reat-
taching the
DPCIS
Wiring dia-
gram
Detaching
and reat-
taching the
main PWB