Troubleshooting

Improving the print quality

If you have a print quality problem, print a test page first (see Print a test page on page 61). If the printout looks good, the problem is probably not the machine. Check the interface cable or try the machine on another computer.

Brother does not recommend the use of cartridges other than genuine Brother Original cartridges or the refilling of used cartridges with toner from other sources.

This section gives information on the following topics.

Examples of poor print

Recommendation

 

quality

 

5

 

 

 

 

 

Take out the drum unit and toner cartridge assembly. Hold the assembly level

 

 

 

 

 

 

 

 

 

 

 

with both hands and gently shake it from side to side several times to spread the

 

 

ABCDEFGH

toner evenly inside the cartridge.

 

 

abcdefghijk

If the LEDs indicate REPLACE TONER (Continue mode), put in a new toner

 

 

A B C D

 

 

cartridge. See Replacing the toner cartridge on page 71.

 

 

a b c d e

 

 

Check the machine’s environment. Conditions such as humidity, high

 

0 1 2 3 4

 

 

 

temperatures, and so on, may cause this print fault. See Safety and Legal

 

 

Faint

booklet.

 

 

If the whole page is too light, Toner Save Mode may be on. Turn off Toner Save

 

 

 

 

 

 

 

 

 

 

 

 

Mode in Advanced tab (For Windows®) or Basic tab of Print Settings (For

 

 

 

 

 

 

Macintosh) of the driver.

 

 

 

 

 

 

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.

 

 

 

 

 

 

 

 

 

 

 

 

 

Make sure that you use paper that meets our specifications. See Acceptable

 

 

 

 

 

 

paper and other print media on page 3.

 

ABCDEFGH

Check the machine’s environment. Conditions such as high temperatures and

 

abcdefghijk

 

high humidity can increase the amount of background shading. See Safety and

 

A B C D

 

Legal booklet.

 

a b c d e

Put in a new toner cartridge. See Replacing the toner cartridge on page 71.

 

0 1 2 3 4

 

 

 

Put in a new drum unit. See Replacing the drum unit on page 79.

 

 

 

 

 

 

 

Gray background

 

 

 

 

 

 

 

 

 

112