6. Procedures for Repairing
43984801TH Rev.1
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Oki Data CONFIDENTIAL
⑧
Vertical white belt/ White line
• Is the LED lens dirty?
• Yes
Clean the LED lens.
• No
Is the contact plate of the transfer roller appropriately connected to the high-voltage power /
sensor board? (See Fig. 6-5.)
•No
Adjust so that the contact plate can be appropriately connected to the high-voltage
power / sensor board.
• Yes
Replace the transfer roller.
• Has the trouble been solved?
• Yes
Completed.
• No
Are the surface status of the back-up roller and the installation of the bias sprint of the back-
up roller appropriate?
• No
Replace the back-up roller or the bias spring.
• Yes
Is the LED head appropriately installed? (Check the HEAD connector of the main board and
the PC connector of the LED head.)
• No
Install the LED head appropriately.
• Yes
Replace the LED head.
• Has the trouble been solved?
• Yes
Completed.
• Yes
Replace the image drum cartridge.
• Has the trouble been solved?
• No
Replace the main board, high-voltage power/ sensor board.