Brother MFC-8460N User Manual page 44

) Make sure that you use paper that meets our specifications. Rough-surfaced paper may cause the problem. (See Acceptable paper and other media on page
11.) Clean the primary corona wire and the drum unit. (See Cleaning the corona wire on page 130 and Cleaning the drum unit on page 130.) If the print
quality has not improved, put in a new drum unit. (See Replacing the drum unit (DR-3115) on page 134.) ABCDEFGH abcdefghijk ABCD abcde 01234 Toner
specks 111 Examples of poor print quality Recommendation Make sure that you use paper that meets our specifications.
(See Acceptable paper and other media on page 11.) Choose Thick paper mode in the printer driver or in the machine's Paper Type menu setting, or use
thinner paper than you are currently using. (See Paper Type on page 17 and Basic tab in the Software User's Guide on the CD-ROM.) Hollow print Check the
machine's environment. Conditions such as high humidity can cause hollow print. (See Choosing a location on page 90.) Clean the primary corona wire on
the drum unit. (See Cleaning the corona wire on page 130.) If the print quality has not improved, put in a new drum unit. (See Replacing the drum unit
) Clean the primary corona wire on the drum unit. (See Cleaning the corona wire on page 130.) If the print quality has not improved, put in a new drum unit.
Put in a new drum unit. (See Replacing the drum unit (DR-3115) on page 134.) All black Dust, paper powder, glue, and so on may stick to the surface of the
photosensitive drum (OPC) and cause black or white spots to appear on printed documents. Make a few copies of a blank, white sheet of paper. (See Making
) If you still see the spots on printed documents after making multiple copies, clean the drum unit (seeCleaning the drum unit on page 130). White Spots on
black text and graphics at 94 mm (3.7 in.) intervals If the print quality still has not improved you need to install a new drum. (See Replacing the drum unit
(DR-3115) on page 134.) Black Spots at 94 mm (3.7 in.) intervals Make sure that you use paper that meets our specifications. (See Acceptable paper and
other media on page 11.) ABCDEFGH abcdefghijk ABCD abcde 01234 If you use label sheets for laser printers, the glue from the sheets may sometimes stick
Clean the drum unit. (See Cleaning the drum unit on page 130.) Do not use paper that has clips or staples because they will scratch the surface of the drum. If
the unpacked drum unit is in direct sunlight or room light, the unit may be damaged. The drum unit may be damaged. Put in a new drum unit. (See Replacing
the drum unit (DR-3115) on page 134.) Black toner marks across the page 112 Troubleshooting and routine maintenance Examples of poor print quality
Recommendation Make sure that you use paper that meets our specifications. A rough surfaced paper or thick print media can cause the problem. (See
) Make sure that you choose the proper media type in the printer driver or in the machine's Paper Type menu setting. (See Acceptable paper and other media
on page 11 and Basic tab in the Software User's Guide on the CD-ROM.) The problem may disappear by itself. Print multiple pages to clear this problem,
especially if the machine has not been used for a long time. Clean the scanner window with a soft cloth.
(See Cleaning the laser ABCDEFGH abcdefghijk ABCD abcde 01234 White lines across the page scanner window on page 128.) The drum unit may be
damaged. Put in a new drum unit. (See Replacing the drum unit (DR-3115) on page 134.) Clean the primary corona wire in the drum unit.
(See Cleaning the corona wire on page 130.) ABCDEFGH abcdefghijk ABCD abcde 01234 Clean the scanner window with a soft cloth. (See Cleaning the
(See Replacing the drum unit (DR-3115) on page 134.) The drum unit may be damaged.
Acceptable paper and other media on page 11.
laser scanner window on page 128.) The drum unit may be damaged. Put in a new drum unit.
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(DR-3115) on page 134.
multiple copies on page 78.
to the OPC drum surface.