Oki OKIPAGE 12i Series, Maintenance Manual, Page: 109 / 210

40718301TH Rev.6
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1
Images are light or blurred entirely.
• Is toner low (is the TONER LOW message displayed)?
• Yes Supply toner.
• No Is paper of the specified grade being used?
• No Use paper of the specified grade.
• Yes Is the lens surface of the LED head dirty?
• Yes Clean the lens.
• No Is the LED head being installed properly (check the
HEAD1 and HEAD2 connectors of the main control
board and PC connector on the LED head for proper
connection)?
• No Install the LED head properly.
• Yes Is the contact plate of the transfer roller in contact with the
contact assembly of the power supply/sensor board prop-
erly (see Figure 6-5)?
• No Adjust the contact plate of the transfer roller to make a proper contact with the power
supply/sensor board and shaft of the transfer roller.
• Yes Are the contact of the developing roller and the contact of the toner supply roller of the image
drum cartrige in contact with the contact assembly properly (see Figure 6-4
A
and
B
)?
• No Adjust the contacts of the developing and toner supply roller to make a proper contact
with the contact assembly.
• Yes Replace the transfer roller.
• Has the problem been solved?
• Yes End
• No Replace the image drum cartridge.
• Has the problem been solved?
• Yes 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).
• No Is the tension between the back-up roller (7.52kg) and the surface of back-up roller normal?
• No Replace the back-up roller or bias spring.
• Yes Replace the main control board or power supply/sensor board.
PC connector
LED head cable
HEAD1,HEAD2
Main control board
LED head