Brother MFC-8910DW C D, c d e, A B, a b

Troubleshooting

Examples of poor print					Recommendation
quality
					 Clean the corona wire inside the drum unit.
					See Cleaning the corona wire uu page 69.
	ABCDEFGH				 The drum unit may be damaged. Put in a new drum unit.
	abcdefghijk
				C D
	A B				See Replacing the drum unit uu page 71.
			c d e
	a b
		2 3 4
	0 1

Lines across the page

Check the machine's environment. Conditions such as high humidity and high temperatures may cause this print quality problem.

See Product Safety Guide: Choosing a location.

If the problem is not solved after printing a few pages, put in a new

drum unit.

See Replacing the drum unit uu page 71.

White lines, bands or ribbing across the page

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 71.

White Spots on black text

and graphics at 94 mm

intervals

B

Black Spots at 94 mm

intervals

113