Oki B4100 - Manual (Page 330)

40055101TH Rev.4 330 /
Troubleshooting flow chart 8:
Yes
Images are light or blurred as a whole.
Replace the paper.
Is the lens surface of the
LED print head dirty?
Are fingerprints or dirts
adhering or moisture-
absorbing to the paper?
Is the LED print head
installed properly?
Is the contact plate of the transfer
roller in contact with the contact
assembly properly?
Clean the lens.
Install the LED print head
properly.
No
Is toner low? Supply toner.
Yes
Is paper of OKI
specified grade?
Use paper of OKI
specified grade. No
Yes
No
No
Yes
Yes
No
Make proper contact of the
contact plate of the transfer
roller with the contact
assembly. No
Yes
Replace the transfer roller,
ID unit or Power Supply Unit.