Abnormal Sound - Oki C5650 Maintenance Instructions Manual

(2-2)Abnormal sound

Confirmation Items
(2-2-1) Check for motor step-out (Abnormal driver)
Operating state of motors
State of motor cords
(2-2-2) Check for motor step-out (Loading problem of consumables)
Operating state of motors
(2-2-3) Check for gear tooth skip (Loading problem of consumables)
Operating state of motors
Installed state of
consumables
(2-2-4) Check of laying of cords
Laying of peripheral cords
around each cooling FAN
(2-2-5) Check of installed state of mechanical parts
Check the installed state of
the sill plates under the CU
and PU PCBs.
43827101TH Rev.2
Confirmation Tasks
Use the self-diagnostic mode to check to see if the motors are
operating normally.
Check in the presence and absence of a load.
If abnormal, the motors will emit a "boo."
Check the laying of motor cords. Check visually, and also check
for short-circuiting with a circuit-tester.Disconnect the motor cord
on the PCB side, and check the resistance between each pin of
the disconnected cord side and the FG.
Replace the motor cord.
Use the self-diagnostic mode to check to see if the motors are
operating normally.
Check in the presence and absence of a load.
If abnormal, the motors will emit a "boo."
Use the self-diagnostic mode to check to see if the motors are
operating normally.
Check in the presence and absence of a load.
If abnormal, the motors will emit "pup, pup."
Visually check to see if the consumables are installed in the
prescribed positions where their gears are engaged.
Check to see if the peripheral cords of the FAN are laid so
poorly that the FAN blades are touching the cords.
If the cords are laid improperly, "cluck, cluck" will be heard.
Remove the PCBs and check visually the installed state of the
sill plates.
Oki Data CONFIDENTIAL
Action at NG
Replace the PU PCB
Redo the laying of the
cord properly.
Replace the
corresponding
consumable.
To use a new
consumable on a trial
basis, use FUSE KEEP
MODE of the System
Maintenance Menu.
Replace the
corresponding
consumable.
To use a new
consumable on a trial
basis, use FUSE KEEP
MODE of the System
Maintenance Menu.
Replace or modify the
necessary mechanical
part.
Correct the laying of
cords.
If the sill plates are not
hooked in the
prescribed positions,
correct their
installation.
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