6. Procedures for Repairing
Oki Data CONFIDENTIAL
44983601TH Rev.1
6-23 /
Vertical white belt/ White line
• Is the LED lens dirty?
• Yes
Clean the LED lens.
• No
Does the contact plate of the transfer roller contact the TR terminal of the high-voltage power
supply unit properly? (See Figure 6-4. , Section 7.2(2))
•No
Adjust the contact plate so that it contacts the TR terminal of the high-voltage power
supply unit properly.
• Yes
Replace the transfer roller.
• Has the trouble been solved?
• Yes
Completed.
• No
Is the backup roller surface normal?
• No
Replace the fuser Assy.
• 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 or high-voltage power supply unit.