Oki 6E - Manual (Page 138)

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2 Dark background density
• Has the image drum been exposed to external light?
• Yes Mount the image drum in the printer and wait about 30 minutes.
▼
• No Is the heat roller of the fusing unit dirty?
• Yes Clean the heat roller.
▼
• No Is the contact of the cleaning roller of the image drum unit in contact with the contact
assembly properly (see Fig. 6-4 C )?
• No Adjust the contact of the cleaning roller to make a proper contact with the
contact assembly.
▼
• Yes Replace the image drum unit.
• Has the problem been removed?
• Yes End
Note: After replacing the image drum unit, set the printer in the user
maintenance mode by turning the power on while pressing the
MENU key, and reset the drum counter (see User’s Manual).
▼
• No Replace the Main Control PCB or power supply board.
3 Blank paper is output.
• Is the LED head being connected properly (check connector CN4 (OKIPAGE 6e) or
HEAD1, HEAD2 (OKIPAGE 6ex) on the Main Control PCB and PC connector on the LED
head)?
• No Connect the LED head properly or replace the head cable.
▼
• Yes Is the contact of the image drum unit in proper contact with the ground contact
properly (see Fig. 6-4 D )?
• No Check the ground contact of the image drum unit.
▼
• Yes Replace the LED head.
• Has the problem been removed.
• Yes End
Note: After replacing the LED head, set the printer in the engine mainte-
nance mode by turning the power on while pressing the FORM FEED
and ENTER keys. Set the LED head drive time if the luminous rating
of the old LED head and new the LED head are different (see 4.2).
▼
• No Replace the Main Control PCB or power supply board.