Konica Minolta Bizhub-C31P, Service Manual, Page: 363 / 370

4. Error codes Field Service V er. 1.0 Apr. 200 8
32
Stap
le
Fi
n
isher
T
roubleshooting
4.2.5 0B4C: Media ejector motor malfunction
*1: M1 is not available as a replacement part. If M1 has a problem, the staple finisher unit must be
replaced.
4.2.6 0BA0: Tray up/down motor ascent/descent drive malfunction
Relevant electrical parts
Media ejector motor (M1)
Media ejector sensor (PS5) FS control board (FSCB)
Step Action
WIRING DIAGRAM
Control signal
Location
(electrical
component)
1
Check the M1 connector for proper connec-
tion and correct as necessary.
⎯ ⎯
2
Check M1 for proper drive coupling and
correct as necessary.
⎯ ⎯
3 M1 operation check * FSCB CN21-3 to 6 G-3
4 PS5 I/O check FSCB CN9-9 (ON) B-3
5 FSCB replacement
⎯ ⎯
Relevant electrical parts
Tray up/down motor (M6)
Media level sensor/1 (PS9)
Media level sensor/2 (PS10)
Tray upper sensor (PS12)
Tray lower sensor (PS13) FS control board (FSCB)
Step Action
WIRING DIAGRAM
Control signal
Location
(electrical
component)
1
Check the M6 connector for proper connec-
tion and correct as necessary.
⎯ ⎯
2
Check M6 for proper drive coupling and
correct as necessary.
⎯ ⎯
3 M6 operation check FSCB CN22-1 to 2 G-2
4 PS9 I/O check FSCB CN 8 -3 (ON) B-3
5 PS10 I/O check FSCB CN 8 -6 (ON) B-3
6 PS12 I/O check FSCB CN5-4 (ON) G-2 to 3
7 PS13 I/O check FSCB CN5-1 (ON) G-2
8 FSCB replacement
⎯ ⎯