Brother DCP-8070D A B C D, a b c d e

Troubleshooting and routine maintenance

Examples of poor print	Recommendation
quality
	„ Make ten copies of a blank, white sheet of paper. (See Making
	multiple copies on page 26.) If the problem is not solved, the drum
	unit may have glue from a label stuck on the OPC drum surface.
	Clean the drum unit. (See Cleaning the drum unit on page 82.)
	„ The drum unit may be damaged. Put in a new drum. (See Replacing
	the drum unit on page 88.)
White Spots on black text
and graphics at 94 mm
intervals

Black Spots at 94 mm

intervals

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

	temperatures, and so on, may cause this print fault. (See Choosing a	C
ABCDEFGH	location on page 44.)
abcdefghijk	„ If the whole page is too light, Toner Save mode may be on. Turn off
A B C D
	Toner Save mode in the machine menu settings or Toner Save
a b c d e	mode in the printer Properties of the driver. (See Toner Save
0 1 2 3 4	on page 22 or Advanced tab in the Software User’s Guide on the CD-
	ROM.)
Faint	„ Clean the scanner window and the corona wire of the drum unit. (See
	Cleaning the laser scanner window on page 79 and Cleaning the
	corona wire on page 81.)

„The toner cartridge may be damaged. Put in a new toner cartridge. (See Replacing a toner cartridge on page 85.)

„The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 88.)

„Make sure that you use paper that meets our specifications. Rough- surfaced paper may cause the problem. (See Acceptable paper and

ABCDEFGH	other print media on page 13.)
abcdefghijk	„ Clean the corona wire and the drum unit. (See Cleaning the corona
A B C D
	wire on page 81 and Cleaning the drum unit on page 82.)
a b c d e	„ The drum unit may be damaged. Put in a new drum unit. (See
0 1 2 3 4	Replacing the drum unit on page 88.)
Toner specks	„ The fuser unit may be contaminated. Call your Brother dealer for
	service.

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