Brother HL-1240, Service Manual

Page: 307 / 333

CHAPTER 4 TROUBLESHOOTING
4-23
Image defect examples Recommendation
.
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
White Vertical streaks
•
You may clear the problem by wiping the scanner window with
a soft cloth.
See “How to clean the printer” in Chapter 3.
•
The toner cartridge may be damaged. Install a new toner
cartridge.
See "How to replace the Toner cartridge" in Chapter
3.
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Page skew
•
Make sure the paper or other media is loaded into the paper
cassette correctly and that the guides are not too tight or too
loose against the paper stack.
•
Set the paper guides correctly. Make sure that the tip of the
paper guides fit into the slot correctly.
See “How to load paper
into the Paper cassette” in Chapter 2.
•
If you are using the manual feed slot see "How to load one
sheet of paper manually" in Chapter 1.
•
The paper cassette may be too full. See "How to load paper
into the paper cassette" in Chapter 2.
•
Check the paper type and quality. See "What kind of paper can
I use" in Chapter 1.
Curl or wave
•
Check the paper type and quality. Both high temperature and
humidity will cause paper to curl.
See “What kind of paper
can I use” in Chapter 1.
•
If you use the printer infrequently, the paper may have sat for
too long in the paper cassette. Turn over the stack of paper in
the paper cassette. Also, try rotating the paper 180
°
in the
paper cassette.
•
Try printing using the straight-through output path. See "How
to load one sheet of paper manually" in Chapter 1.
B DEFGH
abc efghijk
A C D
b c d e
1 3 4
Wrinkles or creases
•
Make sure that paper is loaded properly. See "How to load
paper into the paper cassette" in Chapter 1.
•
Check the paper type and quality. See “What kind of paper
can I use” in Chapter 1.
•
Try printing using the straight-through output path . See "How
to load one sheet of paper manually" in Chapter 1.
•
Turn over the stack of paper in the tray or try rotating the paper
180
°
in the input tray.