18: Heating Roller Warm-Up Failure; 19: Abnormally Low Heating Roller Temperature; Abnormally High Heating Roller Temperature; Faulty Thermistor - Konica Minolta magicolor 2500W Service Manual

Field Service Ver. 1.0 Aug. 2006
16.3.12

18: Heating roller warm-up failure

16.3.13

19: Abnormally low heating roller temperature

16.3.14 1A: Abnormally high heating roller temperature
16.3.15 1B: Faulty thermistor
Fusing unit
Step
Check the fusing unit for correct installation
1
(whether it is secured in position).
Check the fusing unit, PDCU, and PRCB for
2
proper connection and correct as necessary.
check the lever of the safety switch and correct as
3
necessary.
4 change the fusing unit.
5 Change PRCB.
6 Change PDCU.
16.3.16

21: Faulty OHP sensor

OHP sensor (PS2)
Step Action
Check the PRCB connector for
1 proper connection and correct as
necessary.
2 PS2 sensor check.
3 Change PRCB.
Relevant electrical parts
Printer control board (PRCB)
DC power supply (DCPU)
Action
Relevant electrical parts
Printer control board (PRCB)
2500W: PRCB PJ12PRCB-6 (ON)
2530 DL: PRCB PJ12PRCB-6 (ON)
2550/2550DN: PRCB PJ12PRCB-6 (ON)
WIRING DIAGRAM
Control signal
-
-
-
-
-
-
WIRING DIAGRAM
Control signal
-
-
16. Error codes
Location
(Electrical
component)
-
-
-
-
-
-
Location (Electrical
component)
-
2500W: C-10
2530 DL: C-9
2550/2550DN: C-9
-
151