C3922: Fusing Sensor Wire Breaks Detection (Edge Of The Heating Roller) - Olivetti d-Color MF651 Service Manual

Field Service Ver. 2.0 Jul. 2009
19.5.126 C3921: Fusing sensor wire breaks detection (Center of the heating roller)

19.5.127 C3922: Fusing sensor wire breaks detection (Edge of the heating roller)

19.5.128 C3925: Fusing sensor wire breaks detection (NC sensor)
Fusing unit
Step
1 Check the fusing unit for correct installation
(whether it is secured in position).
2 Check the open/close operation of the
upper right door.
3 Check the fusing unit, IHPU, PRCB and
REDB for proper connection and correct or
change as necessary.
4 Change fusing unit
5 Change IHPU
6 PRCB ICP17 conduction check
7 Change PRCB
8 Change REDB
19.5.129 C3924: Fusing sensor wire breaks detection (soaking side)
Fusing unit
Step
1 Check the fusing unit for correct installation
(whether it is secured in position).
2 Check the open/close operation of the
upper right door.
3 Check the fusing unit, IHPU, PRCB and
DCPU for proper connection and correct or
change as necessary.
4 Change fusing unit
5 Change IHPU
6 Change PRCB
7 Change DCPU
Y110571-1
Relevant parts
Action
Relevant parts
Action
Service Manual
IH power supply (IHPU)
Relay drive board (REDB)
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
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IH power supply (IHPU)
DC power supply (DCPU)
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
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19. TROUBLE CODE
Location (Electri-
cal component)
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Location (Electri-
cal component)
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