Oki Data CONFIDENTIAL
2.8 Paper Jam Detector
The C9850/C9650 detects paper jam during printing after turning on the power source. If there is any
paper jam detected, the printing process is immediately canceled. In this case, open the cover,
remove the paper that is jammed, and close the cover to resume printing.
Error Code Displayed on LCD
Error State
400,401 Paper Size Error After the Entrance Cassette Sensor turns ON, it won’t
turn OFF for a certain period of time. It detects several
different types of paper sizes.
372 Mis-feeding in Double-Side
Print Conveyance Assy
Failure to feed paper from the Double-Side Print
Conveyance Assy.
390 MT mis-feed. Paper feed from the MT failed. (If, after Hopping, the
Entrance MT Sensor does not turn ON within a certain
period of time)
391
392
393
394
395
Cassette 1, 2, 3, 4 or 5 mid-
feed.
Paper supply failed from Cassette 1, 2, 3, 4 and 5.
(If, after Hopping, the Entrance Cassette Sensor does
not turn ON within a certain period of time)
370 Paper jam when printing on
the other side with Double-
Side Print.
The double-side printer rear sensor does not turn
ON when printing the other side with the double-side
printer unit.
383 Paper jam at the entrance
of the Double-Side Printer
Unit.
The double-side printer IN sensor does not turn ON
when supplying paper to the double-side printer unit.
371 Paper jam at the input of
the Double-Side Printer
Unit.
The double-side printer front sensor does not turn ON
while the double-side printer unit is operating.
382 Paper discharge jam. The paper discharge sensor senses the tip of the
paper but does not sense the end of the paper
after that within a certain period of time. The paper
discharge sensor turns ON, but does not turn OFF
after that.
381 Paper conveyance jam The paper is conveyed on the belt, however, the paper
discharge sensor does not turn ON.
380 Paper output jam. After hopping is completed, the paper does not reach
the entrance belt sensor or the MT sensor.
490 MT out of paper. If printing is started when the MT is out of paper.
491
492
493
494
495
Cassette 1, 2, 3, 4 or 5 out
of paper
Cassette 1, 2, 3, 4 or 5 out of paper