Brother HL-3400CN Series User Manual

Page 239

CHAPTER 6 TROUBLESHOOTING

6–21

Question

Recommendation

Off set image

ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.

1) Check that the specified paper is being used.
2) Check that the oil is not empty.
3) Replace the Fuser Cleaning Roller

Poor fixing

1) Check that the specified paper is used.
2) Check that the media type mode is selected correctly.

Poor fixing

Wait 15 to 30 minutes and try again.

Poor fixing when printed on
thick paper

Set the printer to thick paper mode through the control
panel or the printer driver.

Blurred vertical band and spots
of color.

Clean the Charging Wire as shown below:
1. Remove the OPC Belt cartridge from the prnter.
2. Clean the Charging Wire of the OPC Belt by

moving the OPC Belt Cleaning Tab.

Dirt on the printed paper.

Clean the Paper Guide, the Registration Roller and the
Exit Roller referring to

‘Periodic Printer Cleaning’ in

Chapter 5

If the same problem re-occurs, contact your dealer or Brother authorized service
representative.