Operation Manual

Troubleshooting
113
5
Ghost
 Make sure that you use paper that meets our specifications. Rough-surfaced
paper or thick print media may cause this problem. See Acceptable paper and
other print media on page 3.
 Make sure that the media type setting in the driver matches the type of paper you
are using. See Acceptable paper and other print media on page 3.
 Choose Reduce Ghosting mode in the printer driver. See Improve Print Output
in Other Print Options... on page 32 (For Windows
®
) or Print Settings on page 43
(For Macintosh).
 Put in a new toner cartridge. See Replacing the toner cartridge on page 71
 Put in a new drum unit. See Replacing the drum unit on page 79.
 The fuser unit may be contaminated. Call your Brother dealer or Brother
Customer Service.
Toner specks
 Make sure that you use paper that meets our specifications. Rough-surfaced
paper may cause the problem. See Acceptable paper and other print media
on page 3.
 The drum unit may be damaged. Put in a new drum unit. See Replacing the drum
unit on page 79.
 The fuser unit may be contaminated. Call Brother Customer Service.
Hollow print
 Make sure that you use paper that meets our specifications. See Acceptable
paper and other print media on page 3.
 Choose Thick Paper mode in the printer driver, or use thinner paper than what
you are now using.
 Check the machine’s environment. Conditions such as high humidity can cause
hollow print. See Safety and Legal booklet.
 The drum unit may be damaged. Put in a new drum unit. See Replacing the drum
unit on page 79.
All black
 Clean the primary corona wire inside the drum unit by sliding the green tab. Be
sure to return the green tab to the home position (a). See Cleaning the corona
wire on page 85.
 The drum unit may be damaged. Put in a new drum unit. See Replacing the drum
unit on page 79.
Examples of poor print
quality
Recommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234