Minolta Di620 Troubleshooting Manual page 26

<Duplex Unit Take-Up Misfeed Clearing Procedure>
Symptom Step
Paper is at a 1 Does M6 turn during a 2-sided copy
stop in the verti- cycle?
cal transport
section of the
2 Is the knob of the Horizontal Transport
Duplex Unit.
Unit turning during a 2-sided copy
cycle?
3 Is the voltage across PJ3Z-1 on PWB-
F and GND and that across PJ3Z-2
and GND DC24V?
4 Do the Duplex Unit Vertical Transport
Roller and Duplex Unit Drive Coupling
operate properly during a 2-sided
copy cycle?
5 Is a torn piece of paper present on the
paper path surface?
6 Is PC11 fully operational?
Make the input port check using "I/O
Check."
Paper is at a 1 Is the Turnover Guide Plate dirty or
stop in the turn- deformed? Is the Turnover Roller
over section of dirty?
the Duplex Unit.
2 Is PC14 fully operational?
Make the input port check using "I/O
Check."
3 Has the misfeed occurred when a
copy cycle was run in the Sort and
Folding mode?
Check Item Result
NO
NO
YES
NO
NO
YES
YES
NO
YES
NO
NO
T-22
Action
Check for overloads and
then check step 4 and
onward.
Check gears and proper
engagement.
Change PWB-A or M6.
Change PWB-Z.
Check gears, belts, roller,
and proper engagement,
and check the gear coupling
for torn pieces of paper.
Remove the torn piece of
paper.
Change PWB-A.
Check the PC11 actuator for
operation and, if it is okay,
change PC11.
Clean or change the Turn-
over Guide Plate or Turnover
Roller.
Check the PC14 actuator for
operation and, if it is okay,
change PC14.
Check step 6.