Kyocera TASKalfa 2550ci - Page 285

2MV-8
1-4-29
6720 Belt rotation error (IHPWB) Defective PWB. Replace the IH PWB and check for correct
operation (see page 1-5-53).
Defective fuser
motor.
Replace the fuser motor.
Defective fuser
unit.
Replace the fuser unit (see page 1-5-18).
6730 Abnormally high IGBT1
temperature (IHPWB)
Defective PWB. Replace the IH PWB and check for correct
operation (see page 1-5-53).
Defective cooling
fan motor.
Replace the IH fan motor.
6740 Abnormally high IGBT2
temperature (IHPWB)
Defective PWB. Replace the IH PWB and check for correct
operation (see page 1-5-53).
Defective cooling
fan motor.
Replace the IH fan motor.
6750 Abnormally output overcur-
rent (IHPWB)
Defective PWB. Replace the IH PWB and check for correct
operation (see page 1-5-53).
Defective fuser
unit.
Replace the fuser unit (see page 1-5-18).
6760 Abnormally AC input over-
current (IHPWB)
Defective PWB. Replace the IH PWB and check for correct
operation (see page 1-5-53).
6770 Abnormally low electric
power (IHPWB)
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.
Defective PWB. Replace the IH PWB and check for correct
operation (see page 1-5-53).
Code Contents Causes
Check procedures/
corrective measures