Question about Konica Minolta Bizhub C550
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Posted on Jan 02, 2017
SOURCE: error c3921
C3921: Fusing sensor wire breaks detection (Center of the heating roller)...
• At the warm-up stage, the heating roller
thermistor/3 voltage does not decrease by
predetermined steps (temperature rise)
within a predetermined time.
Check the fusing unit for correct installation
(whether it is secured in position).
Check the open/close operation of the
upper right door.
Check the fusing unit, IHPU, PRCB and
REDB for proper connection and correct or
change as necessary.
If that check still give you error code 3921
Change fusing unit
Posted on Mar 17, 2009
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