Minolta Di350 Service Manual page 213

FrameMaker Ver.5.5E(PC) Di350 TROUBLESHOOTING
98.12.09
<Duplex Turnover/Take-Up Misfeed Troubleshooting Procedure>
Symptom
Paper is at a stop
near the exit sec-
tion.
Paper is at a stop
inside the Duplex
Unit.
Paper is at a stop
near the Synchro-
nizing Rollers.
Step Check Item
1 Is the Paper Exit Roller
deformed, worn, or dirty with
paper dust?
2 Is PC3 fully operational? Check
the input data using I/O Check.
3 Check M1 for operation.
Does the voltage across PJ1A-7
on PWB-A (Duplex Main Board)
and GND change from DC5V to
DC0V during a 2-sided copy
cycle?
4 Does the voltage across PJ1A-5
on PWB-A (Duplex Main Board)
and GND change from DC5V to
DC0V during a 2-sided copy
cycle?
1 Is the Duplex Unit Transport
Roller or Roll deformed, worn, or
dirty with paper dust?
2 Is a torn piece of paper present
on the paper path surface?
3 Is the Manual Feed Take-Up
Roller or Roll deformed, worn, or
dirty with paper dust?
4 Check M2 for operation.
Does the voltage across PJ1A-3
on PWB-A (Duplex Main Board)
and GND change from DC5V to
DC0V during a 2-sided copy
cycle?
5 Is PI1 fully operational? Check
the input data using I/O Check.
6 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?
1 Is PC2 fully operational? Check
the input data using I/O Check.
Result
YES Clean or change the Paper Exit
NO
YES Check gears for proper engage-
NO
YES Check various parts for possible
NO
YES Clean or change the Duplex Unit
YES Remove the torn piece of paper.
YES Clean or change the Manual
YES Check gears for proper engage-
NO
NO
YES Check various parts for possible
NO
YES Check various parts for possible
NO
T-26
Action
Roller.
Check the PC3 actuator for oper-
ation and, if it is intact, change
PC3.
ment.
Change PWB-A.
overload and, if they are okay,
change M1 or PWB-A (Duplex
Main Board).
Change PWB-A.
Transport Roller or Roll.
Feed Take-Up Roller or Roll.
ment.
Change PWB-A.
Check the PI1 actuator for opera-
tion and, if it is intact, change
PWB-A (Duplex Main Board).
overload and, if they are okay,
change CL3 or M2.
Change PWB-A.
overload and, if they are okay,
change PWB-A.
Check the PC2 actuator for oper-
ation and, if it is intact, change
PC2.