User`s guide

CHAPTER 4 TROUBLESHOOTING
4-13
Improving the Print Quality
!
Caution
If the “CHANGE DRUM SOON” message is on the LCD, you will clear a print
quality problem by replacing the drum unit with a new one. The drum unit is
at the end of it’s life.
This section provides information on the following topics:
problem with Copy
Go to page 4-20
problem with Scan
Go to page 4-21
Image default examples Recommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
C
DE
F
d
ef
g
BC
b
c
d
2
3
Faint
• Check the printer's environment. Conditions such as
high humidity, high temperature, etc. may cause this
situation to occur.
• If the whole page is light, toner save mode may be
on. Disable toner save mode in the Printer Properties
tab of the Driver.
• Try installing a new toner cartridge. See “How to
replace the toner cartridge” in Chapter 3.
• Try installing a new drum unit. See "How to replace
the drum unit" in Chapter 3.
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
Gray background
• Make sure you are using paper that meets the Brother
recommended specifications. See “What kind of
paper can I use” in Chapter 1.
• Check the printer's environment; high temperature
and high humidity conditions can increase the
amount of background shading.
• Try installing a new toner cartridge. See "How to
replace the toner cartridge" in Chapter 3.
• Try installing a new drum unit. See "How to replace
the drum unit" in Chapter 3.