Muratec MFX-2500 Field Engineering Manual page 232

<Duplex Turnover/Take-Up Misfeed (Duplex Unit) Troubleshooting Procedure>
Symptom Step
1
2
Paper is at a
stop near the
3
exit section.
4
1
2
3
Paper is at a
stop inside the
4
Duplex Unit.
5
6
Paper is at a
stop near the
1
Synchronizing
Rollers.
Check Item
Is the Paper Exit Roller
deformed, worn, or dirty with
paper dust?
Is PC3 fully operational?
Check the input data using I/O
Check.
Check M1 for operation.
Does the voltage across
PJ1A-7 on PWB-A (Duplex
Unit) and GND change from
DC5V to DC0V during a 2-
sided copy cycle?
Does the voltage across
PJ1A-5 on PWB-A (Duplex
Unit) and GND change from
DC5V to DC0V during a 2-
sided copy cycle?
Is the Duplex Unit Transport
Roller or Roll deformed, worn,
or dirty with paper dust?
Is a torn piece of paper
present on the paper path
surface?
Is the Manual Feed Take-Up
Roller or Roll deformed, worn,
or dirty with paper dust?
Check M2 for operation.
Does the voltage across
PJ1A-3 on PWB-A (Duplex
Unit) and GND change from
DC5V to DC0V during a 2-
sided copy cycle?
Is PI1 fully operational?
Check the input data using I/O
Check.
Check CL3 for operation.
Does the voltage across
CN14-2 and GND change
from DC24V to DC0V when
paper is taken up from the
Duplex Unit?
Is PC2 fully operational?
Check the input data using I/O
Check.
4-18
Result Action
Clean or change the Paper
YES
Exit Roller.
Check the PC3 actuator for
NO operation and, if it is intact,
change PC3.
Check gears for proper
YES
engagement.
NO Change PWB-A.
Check various parts for
possible overload and, if they
YES
are okay, change M1 or PWB-
A (Duplex Unit).
NO Change PWB-A.
Clean or change the Duplex
YES
Unit Transport Roller or Roll.
Remove the torn piece of
YES
paper.
Clean or change the Manual
YES
Feed Take-Up Roller or Roll.
Check gears for proper
YES
engagement.
NO Change PWB-A.
Check the PI1 actuator for
NO operation and, if it is intact,
change PWB-A (Duplex Unit).
Check various parts for
YES possible overload and, if they
are okay, change CL3 or M2.
NO Change PWB-A.
Check various parts for
YES possible overload and, if they
are okay, change PWB-A.
Check the PC2 actuator for
NO operation and, if it is intact,
change PC2.