Solution; Initial Check Items; Misfeed At Paper Take-Up Section - Konica Minolta bizhub 250 Service Manual

8. Jam Display
8.3

Solution

8.3.1

Initial check items

• When a paper misfeed occurs, first perform the following initial check items.
Check item
Does paper meet product specifications?
Is the paper curled, wavy, or damp?
Is a foreign object present along the paper path, or is
the paper path deformed or worn?
Are rolls/rollers dirty, deformed, or worn?
Are the Edge Guide and Trailing Edge Stop at the cor-
rect position to accommodate the paper?
Are the actuators operating correctly?
8.3.2

Misfeed at Paper Take-Up section

A. Detection timing
Type
Detection of misfeed at
Paper Take-Up section
Detection of paper left in
Paper Take-Up section
B. Action
Paper Feed Motor (M1-ADF)
Separator Sensor (PC6-ADF)
Registration Sensor (PC9-ADF)
Original Detection Sensor (PC8-ADF)
Step
1 Initial check items
2 PC6-ADF I/O check
3 PC9-ADF I/O check
4 PC8-ADF I/O check
5 M1-ADF operation check
6 Change PBA-CONT
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The Separator Sensor (PC6-ADF) is not blocked even after the set period
of time has elapsed after the Paper Feed Motor (M1-ADF) is energized.
The Registration Sensor (PC9-ADF) is not blocked even after the set period
of time has elapsed after the Paper Feed Motor (M1-ADF) is energized.
The Separator Sensor (PC6-ADF) is not blocked even after the set period
of time has elapsed after the Original Detection Sensor (PC8-ADF) is
blocked by the paper.
The Registration Sensor (PC9-ADF) is not blocked even after the set period
of time has elapsed after the Original Detection Sensor (PC8-ADF) is
blocked by the paper.
Relevant Electrical Parts
Action
PBA-CONT CN5CONT-11
PBA-CONT CN7CONT-3 to 6
Field Service Ver. 1.0 Aug. 2005
Replace paper.
Replace paper.
Instruct the user on the correct paper storage
procedures.
Clean the paper path and replace if necessary.
Clean or replace the defective roll/roller.
Set as necessary.
Correct or replace the defective actuator.
Description
Main Control Board (PBA-CONT)
WIRING DIAGRAM
Control Signal
-
PBA-CONT CN6CONT-3
PBA-CONT CN6CONT-6
-
Action
Location
(Electrical Component)
-
DF-605 G-5
DF-605 G-3
DF-605 G-3
DF-605 C-6
-