C3451: Warming-Up Failure; C3751: Fusing Failure (Abnormally High Fusing Temperature 1); C3752: Fusing Failure (Abnormally High Fusing Temperature 2); C3851: Fusing Failure (Abnormally Low Fusing Temperature) - Konica Minolta bizhub 164 Service Manual

Field Service Ver. 2.0 Jun. 2010
14.3.7

C3451: Warming-up failure

14.3.8

C3751: Fusing failure (Abnormally high fusing temperature 1)

14.3.9

C3752: Fusing failure (Abnormally high fusing temperature 2)

14.3.10

C3851: Fusing failure (Abnormally low fusing temperature)

Fusing unit
Step
1 Check the fusing unit for correct installa-
tion.
2 Check the open/close operation of the right
door.
3 Check the fusing unit, DCPU and PRCB for
proper connection and correct or change
as necessary.
4 Change fusing unit.
5 Change PRCB.
6 Change DCPU.
14.3.11

C4001: Faulty HSYNC

14.3.12

C4101: Polygon motor malfunction

PH unit
Step
1 Turn OFF and ON the power switch.
2 Check the connector between PH unit-
PRCB CN1, CN2 for proper connection and
correct as necessary.
3 Change PH unit.
4 Change PRCB.
Relevant electrical components
Operations
Relevant electrical components
Operations
14. MALFUNCTION CODE
Right door switch (SW2)
DC power supply (DCPU)
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
-
-
-
-
-
-
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
-
-
-
Location
(Electrical compo-
nents)
-
-
-
-
-
-
Location
(Electrical compo-
nents)
-
-
-
-
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