Kyocera TASKalfa 3050ci Service Manual page 358

Code Contents
6710 Fuser IH PWB CPU reset
error
Watch doc timer has been
overflowed.
6720 Fuser IH belt rotation error
A belt rotating pulse is not
received for 1 second.
6730 Abnormally high fuser IH
PWB temperature 1
The input detect temperature
is greater than 105°C/221 °F.
6740 Abnormally high fuser IH
PWB temperature 2
The input detect temperature
is greater than 105°C/221 °F.
6750 Fuser IH output over-cur-
rent error
The output current is greater
than 75A for 10 ms in succes-
sion.
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. Fuser IH PWB (YC4) and engine PWB
(YC26)
Defective fuser IH Replace the fuser IH PWB and check for
PWB. correct operation.
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. Fuser unit and engine PWB (YC26)
Defective fuser belt Replace the fuser belt sensor.
sensor.
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. Fuser IH PWB (YC4) and engine PWB
(YC26)
Defective fuser IH Replace the fuser IH PWB and check for
PWB. correct operation.
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. Fuser IH PWB (YC4) and engine PWB
(YC26)
Defective fuser IH Replace the fuser IH PWB and check for
PWB. correct operation.
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. Fuser IH PWB (YC4) and engine PWB
(YC26)
Defective fuser IH Replace the fuser IH PWB and check for
PWB. correct operation.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
1-4-60
2LK/2LN/2LM/2LC
Check procedures/
corrective measures