Muratec MFX-2500 Field Engineering Manual page 227

<Paper Take-Up/Transport Misfeed (Paper feed unit) Troubleshooting Procedure>
Symptom Step
1
2
3
4
5
Paper is not
taken up at all.
6
7
8
1
2
3
Paper is at a
stop at the
vertical
transport
section.
4
Paper is at a
stop near the
Synchronizing
Rollers.
5
6
Check Item
Does the paper being used
meet the product
specifications?
Is the paper curled, wavy, or
damp?
Are the Edge Guide and
Trailing Edge Stop (of the
drawer) positioned to the exact
size of the paper used?
Is the Paper Take-Up Roll
deformed, worn, or dirty with
paper dust?
Is the Paper Lifting Plate dirty
or deformed?
Is the Paper Separator Finger
dirty or deformed?
Check CL2 for operation.
Does the voltage across CN9-
1 on the PWB-A side and
GND change from DC24V to
DC0V when the Start key is
pressed?
Check SL1 for operation.
Does the voltage across
PJ3A-1A on PWB-A (Paper
feed unit) and GND change
from LOW to HIGH when the
Start key is pressed?
Is the Vertical Transport Roller
deformed, worn, or dirty with
paper dust?
Is the Vertical Transport Guide
Plate dirty or deformed?
Is a size error displayed when
the misfeed display is reset?
A misfeed is detected at the
transport section of the 3rd
Drawer.
Is PC2 fully operational?
Check the input data using I/O
Check.
Are all S3's fully operational?
Check the input data using I/O
Check.
Does the voltage across
PJ3A-2B on PWB-A (Paper
feed unit) and GND change to
DC0V when S3 is blocked and
to DC5V when S3 is
unblocked?
4-13
Result Action
Instruct the user to use the
NO paper that meets product
specifications.
Change the paper. Instruct the
YES
user on the storage of paper.
Slide the guides to the exact
NO
size of the paper.
Clean or change the Paper
YES
Take-Up Roll.
Clean or change the Paper
YES
Lifting Plate.
Clean or change the Paper
YES
Separator Finger.
NO Change PWB-A.
Check various parts for
YES possible overload and, if they
are okay, change SL1 or CL2.
Change PWB-A (Paper feed
unit), PWB-A (Cassette Main
NO
Board), or PWB-A, in that
order.
Clean or change the Vertical
YES
Transport Roller.
Clean or change the Vertical
YES
Transport Guide Plate.
Check that the size of the
paper loaded in the current
YES
drawer matches the size set
for that drawer.
Check the PC2 actuator for
NO operation and, if it is intact,
change PC2.
Check various parts for
YES possible overload and, if they
are okay, change PWB-A.
Change PWB-A (Paper feed
YES unit) or PWB-A (Cassette Main
Board).
Check the S3 actuator for
NO operation and, if it is intact,
change S3.