Oki ML490 Maintenance Manual - Page 107
Replace Power Supply Board
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3 Homing does not end normally Yes No Check around space motor to repair the mechanism. (Space rack, ribbon feed assembly back up roller, carriage frame, support protector and ribbon protector.) Remedied? No Yes End Replace space motor assy. Replace space motor assy. Remedied? No Yes End Replace carriage cable Remedied? No Yes End Replace Control Board Remedied? No Yes End Replace Power Supply Board 42114101 Rev.1 107 /
42114101
Rev.1
107 /
3
Homing does not end normally
Yes
No
Check around space motor to repair the mechanism.
(Space rack, ribbon feed assembly back up roller, carriage frame, support
protector and ribbon protector.)
Remedied?
No
Yes
End
Replace space motor assy.
Replace space motor assy.
Remedied?
No
Yes
End
Replace carriage cable
Remedied?
No
Yes
End
Replace Control Board
Remedied?
No
Yes
End
Replace Power Supply Board