Brother MFC-7240 Basic User's Manual page 110

Examples of poor print quality
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Gray background
Ghost
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Toner specks
102
Recommendation
 Make sure that you use paper that meets our specifications. (See
Acceptable paper and other print media uu page 17.)
'
 Check the machine s environment. Conditions such as high
temperatures and high humidity can increase the amount of
background shading. (See Product Safety Guide: Choose a safe
location for your product.)
 Clean the drum surface. (See Cleaning the drum unit
uu page 69.)
 Put in a new toner cartridge. (See Replacing the toner cartridge
uu page 55.)
Put in a new drum unit. (See Replacing the drum unit

uu page 60.)
 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
uu page 17.)
 Make sure that you choose the appropriate media type in the
printer driver (for FAX-2950, MFC-7240 and MFC-7290) or in the
machine's Paper Type menu setting. (See Acceptable paper
and other print media uu page 17 and Software User's Guide:
Basic Tab.)
 (For FAX-2950, MFC-7240 and MFC-7290)
Choose Reduce Ghosting mode in the printer driver. (See
Software User's Guide: Ghost Reduction Setting.)
 Put in a new toner cartridge. (See Replacing the toner cartridge
uu page 55.)
 Clean the drum surface. (See Cleaning the drum unit
uu page 69.)
Put in a new drum unit. (See Replacing the drum unit

uu page 60.)
 The fuser unit may be contaminated. Call Brother Customer
Service or your local Brother dealer.
 Make sure that you use paper that meets our specifications.
Rough-surfaced paper may cause the problem. (See Acceptable
paper and other print media uu page 17.)
 Clean the corona wire and the drum unit. (See Cleaning the
corona wire uu page 67 and Replacing the drum unit
uu page 60.)
 The drum unit may be damaged. Put in a new drum unit. (See
Replacing the drum unit uu page 60.)
 The fuser unit may be contaminated. Call Brother Customer
Service or your local Brother dealer.