5-1
Trouble
Shooting
Section V Troubleshooting
Remember that failure indications can be caused by defects in harnesses and/or
connections.
5.1 Self-diagnosis/Machine malfunction
The self-diagnostic function detects machine malfunctions and indicates messages
on the display depending on the trouble area.
When malfunctions occur, the +24V power supply is interrupted and the machine is
stopped. At the same time the message appears in the display. Take necessary
measures depending on the message.
(1) Use error: Message appears on the copy number display
Page
P5-2
P5-2
P5-2
P5-2
P5-3
Code
U4
U11
U12
–
oF
Message
"Close sorter"
"Clear sorter bins"
"Close staple cover of sorter"
"Replace staple cartridge"
"Sorter-full-Empty/Press
mode key"
Cause
Paper condition in the sorter
is abnormal
Stapler cover is not closed
Staple cartridge is not
detected
Paper overflow in the sorter
Sorter is not installed correctly
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