Oki C7500n Maintenance Manual page 113

Message Cause
Reset belt Same unit not detected
330: Belt error upon power ON or
closing cover.
Reset drum Same as above.
330~343:
Drum error
Set new drum ID unit life.
350: Yellow drum
life
351: Magenta
drum life
352: Cyan drum
life
353: Black drum
life
Set new fuser Fuser life (occurs when
354: Fuser life fuser life continuation
is OFF).
Set new belt Belt life notified (alarm).
355: Belt life Print N-count by
opening and closing
cover.
Set new belt Waste toner belt life
356: Belt life notified (alarm).
Print N-count by
opening and closing
cover. N=20
Set duplex unit When duplex unit is
360: Duplex removed from printer.
unit is open.
Check Paper jam detected
DUPLEX after paper rotated in
370: Paper jam duplex unit.
Check Paper jam during paper
DUPLEX feed from duplex unit.
371: Paper jam
Check
DUPLEX
372: Paper jam
Open front Paper jam during paper
cover feed from cassette 1, 2,
380: Paper jam 3, 4 or 5.
Open top Paper jam detected
cover between black ID and
381: Paper jam fuser
Open top Paper jam detected in
cover fuser or during paper
382: Paper jam ejection from fuser.
Open top Paper jam detected
cover when paper started to
383: Paper jam enter duplex print unit.
41955801TH Rev.8
Table 5-1-1 Operator Alarm (5/6)
Error Description
1) Is error message displayed?
2) Is belt unit set properly?
3) Does error reoccur?
1) Is error message displayed?
2) Is image drum set properly?
3) Does error reoccur?
Right after replacing ID unit?
Right after replacing fuser?
Right after replacing belt?
Right after replacing belt?
Does error recover by resetting duplex
unit?
Check paper jam in duplex unit.
Check paper jam in duplex unit.
Check miss-feed in duplex unit.
Check miss-feed in duplex unit.
1) Check paper jam between yellow ID
and fuser.
2) Check fuser unit load.
1) Check paper jam in fuser and between
yellow ID and fuser.
2) Check if paper ejection switch is proper.
Check paper jam in duplex unit or at
entrance.
Oki Data CONFIDENTIAL
Solutions
Yes Check set condition of belt unit.
No Reset belt unit and turn power ON
again.
Yes Replace belt unit assembly.
Yes Check set condition of ID.
No Turn power ON again.
Yes Replace ID unit assembly.
Yes Check ID unit life.
No Replace ID unit.
Yes Check fuser life.
No Replace fuser.
Yes Check belt life.
No Replace belt.
Yes Check belt life.
No Replace belt.
Yes Normal.
No Replace duplex unit or engine board.
Yes Remove jammed paper.
No Check/replace duplex unit.
Yes Remove jammed paper.
No Check/replace duplex unit.
Yes Remove miss-fed paper and close
cover.
No Check/replace duplex unit.
Yes Remove miss-fed paper and set
cassette.
No Check/replace cassette 1, 2, 3, 4, or 5.
Yes Remove jammed paper.
No Replace fuser unit.
Yes Remove jammed paper.
No Replace paper ejection switch.
Yes Remove jammed paper.
No Check/replace duplex unit.
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