Oki B410 Maintenance Manual page 112

Oki Data CONFIDENTIAL
① Pale printing or the whole printing is faded.
• Does the printer lack toner? (Is the message of Toner Low displayed?)
• Yes
• No
• No
• Yes
• Yes
• No
• No
• Yes
• No
• Yes
• No
• Yes
• Has the trouble been solved?
• Yes
• No
• Has the trouble been solved?
• Yes
• No
• No
• Yes
43984801TH Rev.1
Supply the toner.
Is specified paper used.
Use specified paper.
Is the lens of the LED head dirty?
Clean the lens.
Is the LED head appropriately installed?
(Check that the HEAD connector of the main
board and the PC connector of the LED head are
appropriately connected.)
Install the LED head appropriately.
Is the contact plate of the transfer roller appropriately connected to the high-voltage power/
te contact assembly of the sensor board. (See Figure 6-5.)
Adjust the contact plate of the transfer roller so that it can be connected to the transfer
roller shaft.
Are the contact of the developing roller and toner supply roller of the image drum cartridge
appropriately connected to the contact assembly? (See Figure 6-3 Ⓐ and Ⓑ)
Adjust so that the contacts of the developing roller and toner supply roller are
connected to the contact assembly.
Replace the transfer roller.
Completed
Replace the image drum cartridge.
Completed
Are the surface status of the back up roller and the installation of the bias spring of the back-
up roller appropriate?
Replace the back-up roller or bias spring.
Replace the main board, high-voltage power/ sensor board.
6. Procedures for Repairing
LED head cable
LED head
PC connector
HEAD
Main board
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