Brother HL-4000CN - Page 115

6-7
6
6
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4
4
P
P
r
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Q
Q
u
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a
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l
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P
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o
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b
b
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m
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6
6
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4
4
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1
1
B
B
l
l
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r
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C
C
o
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m
m
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l
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B
B
l
l
a
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c
c
k
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g
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Symptom Possible Cause Action
Two or more sheets may be feeding
at once.
Remove the paper stack from the
tray, fan it, and reinsert it.
The print head cartridge is old or
damaged.
Replace the print head cartridge.
See 8.2.2 “Replacing the Print Head
Cartridge”
Nothing is printed
The power supply is defective. Contact your dealer or Brother
authorized service representative.
The print head cartridge is old or
damaged.
Replace the print head cartridge.
See 8.2.2 “Replacing the Print Head
Cartridge”
Output sheets are
completely black
The power supply is defective. Contact your dealer or Brother
authorized service representative.