Brother International MFC-8710DW Basic User's Guide - English - Page 131

ABCDEFGH, White Spots on black text, and graphics at, 7 in., mm intervals, Black Spots

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Troubleshooting Examples of poor print quality White Spots on black text and graphics at 3.7 in. (94 mm) intervals Recommendation  Make 10-15 copies of a blank, white sheet of paper. If the problem is not solved after printing the blank pages, the drum unit may have foreign material, such as glue from a label, stuck on the drum. Clean the drum unit. See Advanced User's Guide: Cleaning the drum unit.  The drum unit may be damaged. Put in a new drum unit. See Replacing the drum unit uu page 76. Black Spots at 3.7 in. (94 mm) intervals ABCDEFGH abcdefghijk ABCD abcde 01234 Black toner marks across the page  If you use label sheets for laser printers, the glue from the sheets may sometimes stick to the OPC drum surface. Clean the drum unit. See Advanced User's Guide: Cleaning the drum unit.  Make sure that you use paper that meets our specifications. See Acceptable paper and other print media uu page 19.  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 toner cartridge may be damaged. Put in a new toner cartridge. See Replacing the toner cartridge uu page 68.  The drum unit may be damaged. Put in a new drum unit. B See Replacing the drum unit uu page 76. 119

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Troubleshooting
119
B
White Spots on black text
and graphics at
3.7 in.
(94 mm) intervals
Black Spots at
3.7 in.
(94 mm) intervals
Make 10-15 copies of a blank, white sheet of paper. If the problem is
not solved after printing the blank pages, the drum unit may have
foreign material, such as glue from a label, stuck on the drum. Clean
the drum unit.
See Advanced User's Guide:
Cleaning the drum unit
.
The drum unit may be damaged. Put in a new drum unit.
See
Replacing the drum unit
uu
page 76.
Black toner marks across the
page
If you use label sheets for laser printers, the glue from the sheets may
sometimes stick to the OPC drum surface. Clean the drum unit.
See Advanced User's Guide:
Cleaning the drum unit
.
Make sure that you use paper that meets our specifications.
See
Acceptable paper and other print media
uu
page 19.
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 toner cartridge may be damaged. Put in a new toner cartridge.
See
Replacing the toner cartridge
uu
page 68.
The drum unit may be damaged. Put in a new drum unit.
See
Replacing the drum unit
uu
page 76.
Examples of poor print
quality
Recommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234