Abnormal Sound - Oki C3400n Maintenance Manual

(2-2)

Abnormal sound

Confirmation Items
(2-2-1) Motor step out confirmation (driver abnormality)
Operation condition of each
motor
Motor cord condition
(2-2-2) Motor step out confirmation (load abnormality of Consumable)
Operation condition of each
motor.
(2-2-3) Gear-skip confirmation (load abnormality of Consumable)
Operation condition of each
motor.
Set condition of each
consumable
(2-2-4) Layout condition of cord
Layout of cord around cooling
FAN
43163501TH Rev. 1
Confirmation Tasks
Use the motor clutch test function of the maintenance utility to
confirm whether the operation of each motor is normal or
abnormal. Confirm whether load exists.
When it is in abnormal state, check whether beep sounds.
Check the layout condition of each motor.
By visual inspection and tester, perform short-circuit check.
Remove the motor cord from board side, and check the resistance
value between each PIN and FG of removed cord side.
Use the motor clutch test function of the maintenance utility to
confirm whether the operation of each motor is normal or
abnormal. Confirm whether load exists.
When it is in abnormal state, check whether beep sounds.
Use the motor clutch test function of the maintenance utility to
confirm whether the operation of each motor is normal or
abnormal. Confirm whether load exists.
When it is in abnormal state, check whether crackling sound
sounds.
By visual inspection confirm whether the gear of each
consumable is set in position.
Check whether layout of cord around cooling fan is poor and
the cable may touch the fan blade.
When it is in abnormal state, check whether rattly sounds.
Oki Data CONFIDENTIAL
Action at NG
Exchange main board
(BLAPCB).
Exchange the motor
cord, and reassemble
normally.
Exchange each
consumable.
When trying to use a
new belt and fuser,
please utilize the fuse
keep mode of the
maintenance utility. (See
Note! on page 154.)
When trying to use a
new ID unit, please be
careful not to break the
fuse with jig inside the
ID unit. (Please refer to
page 132)
Exchange each
consumable.
When trying to use a
new belt and fuser,
please utilize the fuse
keep mode of the
maintenance utility. (See
Note! on page 154.)
When trying to use a
new ID unit, please be
careful not to break the
fuse with jig inside the
ID unit. (Please refer to
page 132)
Exchange or correct
necessary mechanical
parts.
Correct the layout of
cord.
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