Oki MB472w, Руководство по обслуживанию

Страница: 84 / 224

Oki Data CONFIDENTIAL
45762101TH Rev.1
2-64
2. TROUBLESHOOTING PROCEDURES
In case of error printing
• Does the contact plate of the transfer roller contact the TR terminal of the high-
voltage power supply unit properly? (See Figure 2-3, Section 6.2 (9))
• No Adjust the contact plate so that it contacts the TR terminal of
the high-voltage power supply unit properly.
• Yes Replace transfer roller.
• Has the problem been solved?
• Yes Completed
• No Is LED Head installed properly? (Check the HEAD connector of main
board and PC connector of LED Head.)
•
No Install LED Head properly.
• Yes Replace LED Head or Head cable.
• Has the problem been solved?
• Yes Completed
• No Replace the main board or high-voltage power supply unit.
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 2-3, Section
6.2 (9))
•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.
In case of inefficient fusing (If touch by hand the character or image that are printed
on paper will be faded or unstuck.)
• Is the specified paper used?
• No Use the specified paper.
• Yes Is the backup roller surface normal?
• No Replace the fuser Assy.
• Yes Does the contact plate of the fuser Assy contact the base plate
properly? (See Figure 2-4.)
• No Adjust the contact plate of the fuser Assy so that it contacts the
base plate properly.
• Yes Replace Fuser Assy.
• Has the problem been solved?
• Yes Completed
• No Replace the main board or high-voltage power supply unit.