Code: C-0377
Classification: PF: Fan abnormality
Cause:
2nd tandem PF-703/706 paper feed assist fan /Rr2 (FM6: PF-703, FM4: PF-706) rotation abnormality.
The FM6 EM and FM4 EM error detection signals are detected twice in succession within a period of time after FM6 and FM4 were turned ON. However, an error detection signal (blowout of ICP) is not detected.
Measures to take when alert occurs:
The main body and the option stop immediately.
Estimated abnormal parts:
- Paper feed assist fan /Rr2 (FM6: PF-703)
- Paper feed assist fan /Rr2 (FM4: PF-706)
- PF drive board (PFUDB)
Correction:
Turn OFF/ON the power switch (SW2) of the main body when releasing an abnormal condition.
Note: The message "Please call service" is displayed on the panel.
Solution:
- Check the connector connection and the wiring between PFUDB and the fan, and repair it if any abnormality.
- Rotate the fan by I/O or hand, and repair it if any abnormality. (Wiring diagram: PF-703: 11-F, PF-706: 7-C).
- Replace FM6 : PF-703. Replace FM4 : PF-706.
- Replace PFUDB.