Prints Voids - Oki OKIPAGE 12i Service Handbook

6

Prints voids

• Is the contact plate of the transfer roller in proper contact with the power supply/sensor board
(see Figure 6-5)?
• No
• Yes Replace the transfer roller.
• Has the problem been solved?
• Yes
• No Is the tension between the back-up roller (7.52kg) and the surface of back-up roller
normal?
• No
• Yes Are the contacts of the toner supply roller, developing roller, image drum and charging
roller in proper contact with the contact assy (see Figure 6-4
• No
• Yes Replace the image drum cartridge.
• Has the problem been solved?
• Yes
• No Is the LED head being installed properly (check HEAD1 and HEAD 2 connectors on the
main control board and PC Connector on the LED head)?
• No
• Yes Replace the LED head or the head cable(s).
• Has the problem been solved?
• Yes End
Note: After replacing the LED head, set the printer to the engine maintenance mode
• No Replace the main control board or power supply/sensor board.
Adjust the contact plate so that it touches the power supply/sensor board and the
shaft of the transfer roller properly.
End
Replace the back-up roller or bias spring.
Adjust the contacts so that they touch the contact assy properly.
End
Note: After replacing the image drum cartridge, set the printer in the user
maintenance mode by turning the power on while pressing the MENU
key, and reset the drum counter (see Printer Handbook).
Install the LED head properly.
by turning the power on while pressing the FORM FEED and ENTER keys. Set
the LED head drive time (see 4.2).
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