Oki MB461MFP, Maintenance Manual

Page: 249 / 302

Oki Data CONFIDENTIAL
44871001TH Rev.6
8-57
8. TROUBLESHOOTING PROCEDURES
(5-2) Jam occurs immediately after paper feed is started. (Multipurpose tray)
Check item Check operation Actions for NG
results
(5-2-1) Check condition of paper running path
Paper running path
of the multipurpose
tray Open the front cover check if paper is not
jammed in the paper running path. Remove the
paper
Sheet Receive of
the multipurpose
tray
Confirm that the Sheet Receive has moved up
normally.
Confirm that the support spindle and spring of
the Sheet Receive have been installed in the
specified positions normally. Correct
installation of
the above parts
so that the
Sheet Receive
moves up to
the specified
position
normally.
(5-2-2) Check condition of the mechanical parts
Entrance sensor Is the paper sent to the entrance sensor lever? Replace the
paper feed roller,
pick-up roller or
paper cassette.
Does the entrance sensor lever work normally?
(It moves freely by touching.) Replace the
entrance sensor
lever.
Is the IN_WR connector of the main board
connected properly? Connect the
IN_WR connector
properly.
Check item Check operation Actions for NG
results
(5-2-3) Check the paper feed roller rotate.
Multipurpose tray Does the paper feed roller rotate? YES:
Set the paper
multipurpose tray
appropriately.
NO:
Go next question.
Paper feed roller
and shaft. Does the paper feed clutch work normally? YES:
Replace the
paper feed roller
and shaft.
NO:
Go next question.
Connector Is HCLT connector of the main board
appropriately connected? YES:
Go next question.
NO:
Connect HCLT
connector
appropriately.
Clutch Is the coil resistance of the paper feed clutch
(Normal resistance: Pin1, Pin2, and approx.
192 ) normally? YES:
Replace the main
board.
NO:
Replace the
paper feed
clutch.