12: Laser Malfunction; 14: 2Nd Image Transfer Pressure/Retraction Failure - Konica Minolta magicolor 2500W Service Manual

16. Error codes
16.3.7

12: Laser malfunction

PH Unit
Step
Check the cable and connector for proper con-
1
nection and correct as necessary.
2 Change PH unit.
3 Change PRCB.
16.3.8

14: 2nd image transfer pressure/retraction failure

Retraction position sensor /2nd image transfer (PS5)
Pressure/retraction solenoid /2nd image transfer (SD4)
Main motor (M1)
Step Action
Check the M1 connector for
1 proper connection and cor-
rect as necessary.
Check M1 for proper drive
2 coupling and correct as nec-
essary.
Check the SD4 connector for
3 proper connection and cor-
rect as necessary.
Check the PRCB connector
4 for proper connection and cor-
rect as necessary.
5 PS5 sensor check.
6 SD4 operation check.
7 M1 operation check.
8 Change PRCB.
148
Relevant electrical parts
Printer control board (PRCB)
Action
Relevant electrical parts
Control signal
2500W: PRCB PJ14PRCB-3 (ON)
2530 DL: PRCB PJ14PRCB-3 (ON)
2550/2550DN: PRCB PJ14PRCB-3 (ON)
2500W: PRCB PJ11PRCB-2 (REM)
2530 DL: PRCB PJ11PRCB-2 (REM)
2550/2550DN: PRCB PJ11PRCB-2 (REM)
2500W: PRCB PJ8PRCB-5 (REM)
PRCB PJ8PRCB-8 (LOCK)
2530 DL: PRCB PJ8PRCB-5(REM)
PRCB PJ8PRCB-5(LOCK)
2550/2550DN: PRCB PJ8PRCB-5(REM)
PRCB PJ8PRCB-5(LOCK)
Field Service Ver. 1.0 Aug. 2006
WIRING DIAGRAM
Control signal
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Printer control board (PRCB)
WIRING DIAGRAM
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Location
(Electrical
component)
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Location (Electrical
component)
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2500W: J-4
2530 DL: J-3
2550/2550DN: J-3
2500W: C-11
2530 DL: C-10
2550/2550DN: C-10
2500W: C-7
2530 DL: C-6
2550/2550DN: C-6
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