C2151: Secondary Transfer Roller Pressure Welding Alienation - Olivetti d-Color MF651 Service Manual

Field Service Ver. 2.0 Jul. 2009
19.5.63

C2151: Secondary transfer roller pressure welding alienation

Pressure welding alienation sensor (PS50)
2nd image transfer pressure retraction motor (M3)
Step
1 Check the M3 connector for proper
connection and correct as necessary.
2 PS50 I/O check, sensor check
3 M3 operation check
4 Change M3
5 Change PRCB
19.5.64 C2152: Transfer belt pressure welding alienation
Pressure welding alienation sensor/K (PS51)
Pressure welding alienation sensor/color (PS52)
1st image transfer pressure retraction motor (M21)
Step
1 Check the M21 connector for proper
connection and correct as necessary.
2 PS51 I/O check, sensor check
3 PS52 I/O check, sensor check
4 M21 operation check
5 Change M21
6 PRCB ICP4 conduction check
7 Change MFPB
Y110571-1
Relevant parts
Action
Relevant parts
Action
Service Manual
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
—
PFTDB CN4-9 (ON)
PFTDB CN5-3 (REM)
—
—
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
—
PRCB CN21-1 (ON)
PRCB CN21-4 (ON)
PRCB CN20-1 to 4
—
—
—
19. TROUBLE CODE
Location (Electri-
cal component)
—
Q-5
Q-6
—
—
Location (Electri-
cal component)
—
C-23
C-23
K-6
—
—
—
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