Minolta Di620, Manual, Page: 236 / 466

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