C3825: Fusing Abnormally Low Temperature Detection (Nc Sensor) - Olivetti d-Color MF651 Service Manual

19. TROUBLE CODE
19.5.123 C3822: Fusing abnormally low temperature detection
(Edge of the heating roller)

19.5.124 C3825: Fusing abnormally low temperature 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
19.5.125 C3824: Fusing abnormally low temperature 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
810
Relevant parts
Action
Relevant parts
Action
Service Manual
Field Service Ver. 2.0 Jul. 2009
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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Location (Electri-
cal component)
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Location (Electri-
cal component)
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