C3923: Fusing Sensor Wire Breaks Detection (Pressurizing Side); C3924: Fusing Sensor Wire Breaks Detection (Soaking Side); C3B02: Ih Malfunction (Cpu); C3B03: Ih Malfunction (Monitor) - Konica Minolta bizhub C650 Service Manual

16. Malfunction code
16.5.78

C3923: Fusing sensor wire breaks detection (pressurizing side)

16.5.79

C3924: Fusing sensor wire breaks detection (soaking side)

Fusing unit
Step
Check the fusing unit for correct installation
1
(whether it is secured in position).
Check the open/close operation of the
2
upper right door.
Check the fusing unit, IHPU, PRCB and
3 DCPU for proper connection and correct or
change as necessary.
4 Change fusing unit
5 Change IHPU
6 Change PRCB
7 Change DCPU
16.5.80

C3B02: IH malfunction (CPU)

16.5.81

C3B03: IH malfunction (monitor)

16.5.82

C3B04: IH malfunction

Fusing unit
Degaussing coil unit
Step
Check the fusing unit for correct installation
1
(whether it is secured in position).
Check the open/close operation of the
2
upper right door.
Check the fusing unit, degaussing coil unit,
3 IHPU, PRCB and REDB for proper connec-
tion and correct or change as necessary.
4 Change fusing unit
5 Change degaussing coil unit
6 Change IHPU
7 Change PRCB
8 Change REDB
662
Relevant parts
Action
Relevant parts
Action
Field Service Ver. 8.0 Jun. 2008
IH power supply (IHPU)
DC power supply (DCPU)
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
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—
IH power supply (IHPU)
Relay drive board (REDB)
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
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—
—
—
—
—
—
—
Location (Electri-
cal component)
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—
—
—
—
—
—
Location (Electri-
cal component)
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—
—
—
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