Code: 7247; Code: 7260 - Konica Minolta bizhub C650 Service Manual

7. Jam display
7.3.10

Code: 7247

A. Detection timing
Paper is left in the Z-folding unit even after the set period of time has elapsed after the main body trans-
mits an operation stop signal to the Z-folding unit.
B. Action
ZU control board (ZUCB)
Step
1 Initial checks
2 ZUCB replacement
7.3.11

Code: 7260

A. Detection timing
The side edge sensor on the paper size detect board (PSDTB) is not turned ON even after the set
period of time has elapsed after the leading, trailing, and side edge sensors on the paper size detect
board (PSDTB) are turned OFF by the paper; or, the punch home sensor (PS6) is not turned ON by the
paper even after the set period of time has elapsed after the punch clutch (CL1) is turned OFF.
B. Action
Punch clutch (CL1)
Punch home sensor (PS6)
Step
1 Initial checks
2 PS6 I/O check, sensor check
3 CL1 operation check
4 PSDTB I/O check, sensor check
5 ZUCB replacement
52
Description
Relevant electrical parts
Action
Description
Relevant electrical parts
Paper size detect board (PSDTB)
ZU control board (ZUCB)
Action
Field Service Ver. 2.0 May 2008
WIRING DIAGRAM
Control signal
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—
WIRING DIAGRAM
Control signal
—
ZUCB CN3-5 (ON)
ZUCB CN11-4 (DRV)
—
—
Location (Electrical
components)
—
—
Location (Electrical
components)
—
C-7
C-7
—
—