Kyocera TASKalfa 2551ci, Service Manual

Page: 339 / 756

2NP
1-4-32
3310 CIS AGC error
After AGC, correct input is not
obtained at CIS.
CIS 1. Execute U906 Separating Operation
Release (see page 1-3-195).
2. To check the lamp, execute U061 CCD
(see page 1-3-43).
3. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DP CIS and DPSHD PWB (YC2)
DPSHD PWB (YC3) and DP relay PWB
(YC2)
4. If the wiring is disconnected, shorted or
grounded, replace the wiring.
5. Replace the CIS and execute U091 and
U411 (see page 1-3-134,1-3-134).
DPSHD PWB
Replace the DPSHD PWB.
3500 Communication error
A wrong read-back value.
Defective connec-
tor cable or poor
contact in the con-
nector. Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
CCD PWB and ISC PWB (YC9)
ISC PWB and main PWB (YC11)
Defective CCD
PWB. Replace the image scanner unit
(see page 1-5-21).
Defective PWB. Replace the main PWB and check for cor-
rect operation (see page 1-5-37).
3600 Scanner sequence error
Defective main
PWB or engine
PWB. Replace the main PWB or the engine PWB
and check for correct operation
(see page 1-5-37 or 1-5-39).
3700
Scanner device error
CCD connector
inserted incor-
rectly. Reinsert the image scanner unit connector if
necessary.
3800 AFE error
When writing the data, read
and write data does not match
3 times in succession.
Defective ISC
PWB. Replace the ISC PWB and check for correct
operation.
3900 Backup memory read/write
error (ISC PWB)
Read and write data does not
match.
Defective backup
memory or PWB. Replace the ISC PWB and check for correct
operation.
Code Contents Causes
Check procedures/
corrective measures