14. MALFUNCTION CODE
14.3.3
C2557: Abnormally low T/C ratio
14.3.4
C2558: Abnormally high T/C ratio
14.3.5
C255C: TCR sensor adjustment failure
TCR sensor board (TCRSB)
Step
1
Check to see if developer is available.
2
Check the connector between TCRSB-
relay CN14-PRCB CN10 for proper con-
nection and correct as necessary.
3
Change TCRSB.
4
Execute "TCR AUTO ADJUST."
5
Change PRCB.
14.3.6
C2702: Abnormal image transfer voltage
Transfer roller unit
High voltage unit (HV1)
Step
1
Check the transfer roller unit for installation.
2
Change HV1.
3
Change PRCB.
132
Relevant electrical components
Operations
Relevant electrical components
Operations
Field Service Ver. 2.0 Jun. 2010
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
-
-
-
-
-
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
-
-
-
Location
(Electrical compo-
nents)
-
-
-
-
-
Location
(Electrical compo-
nents)
-
-
-