Minolta Di 620 Manual page 236

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