Kyocera TASKalfa 3050ci Service Manual page 348

Code Contents
4004 Polygon motor Y synchroni-
zation error
After polygon motor Y is
driven, the ready signal does
not turn to L within 30 s.
4011 Polygon motor K steady-
state error
After polygon motor K is stabi-
lized, the ready signal is at the
H level for 15 s continuously.
4012 Polygon motor C steady-
state error
After polygon motor C is stabi-
lized, the ready signal is at the
H level for 15 s continuously.
4013 Polygon motor M steady-
state error
After polygon motor M is sta-
bilized, the ready signal is at
the H level for 15 s continu-
ously.
Causes
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Polygon motor Y and LSU relay PWB
(YC11)
LSU relay PWB (YC3) and engine PWB
(YC12)
Defective polygon Replace the laser scanner unit (see page 1-
motor Y. 5-25).
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Polygon motor K and LSU relay PWB (YC4)
LSU relay PWB (YC4) and engine PWB
(YC12)
Defective polygon Replace the laser scanner unit (see page 1-
motor K. 5-25).
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Polygon motor C and LSU relay PWB (YC9)
LSU relay PWB (YC3) and engine PWB
(YC12)
Defective polygon Replace the laser scanner unit (see page 1-
motor C. 5-25).
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Polygon motor M and LSU relay PWB (YC7)
LSU relay PWB (YC3) and engine PWB
(YC12)
Defective polygon Replace the laser scanner unit (see page 1-
motor M. 5-25).
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
1-4-50
2LK/2LN/2LM/2LC
Check procedures/
corrective measures