Brother MFCL3770CDW Owner's Manual

Loading ...

Examples of poor print quality Recommendation

ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.

White spots

• Make sure the media type setting in the printer driver

matches the type of paper you are using.

• Check the machine’s environment. Conditions such as

high humidity and high temperatures may cause this

print quality problem.

• If the problem is not solved after printing a few pages,

the drum may have foreign material, such as glue

from a label, stuck on the drum surface. Clean the

drum unit.

See Related Information: Clean the Drum Unit.

• Install a new drum unit.

See Related Information: Replace the Drum Unit.

ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.

Blank page or some missing colors

• Identify the color causing the problem and install a

new toner cartridge.

To identify the color of the toner cartridge, visit the

Brother Solutions Center at

support.brother.com to

see the FAQs & Troubleshooting page.

See Related Information: Replace the Toner Cartridge.

• Install a new drum unit.

See Related Information: Replace the Drum Unit.

ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.

Colored spots at 3.7 in. (94 mm)

• If the problem is not solved after printing a few pages,

the drum may have foreign material, such as glue

from a label, stuck on the drum surface. Clean the

drum unit.

See Related Information: Clean the Drum Unit.

• Install a new drum unit.

See Related Information: Replace the Drum Unit.

Colored spots at 1.1 in. (29 mm)

• Identify the color causing the problem and install a

new toner cartridge.

To identify the color of the toner cartridge, visit the

Brother Solutions Center at

support.brother.com to

see the FAQs & Troubleshooting page.

See Related Information: Replace the Toner Cartridge.

ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.

Toner scatter or toner stain

• Check the machine’s environment. Conditions such as

high humidity and high temperatures may cause this

print quality problem.

• Identify the color causing the problem and put in a

new toner cartridge.

To identify the color of the toner cartridge, visit the

Brother Solutions Center at

support.brother.com to

see the FAQs & Troubleshooting page.

See Related Information: Replace the Toner Cartridge.

• Install a new drum unit.

See Related Information: Replace the Drum Unit.

The color of your printouts is not what you expected

• To improve the color density, calibrate the colors using

the LCD.

• To adjust the print position of colors for sharper edges,

perform the color registration using the LCD.

506

Loading ...

Brother MFCL3770CDW

Owner's Manual - Page 513