Brother 1250, HL-1030, 1240 service manual Image distortion, Faint print

CHAPTER 6 TROUBLESHOOTING

I-13

Image distortion

Possible cause	Step	Check	Result	Remedy
Laser unit	1	Is the laser unit secured to the	Yes	Secure the unit correctly and
installation		frame incorrectly?		tighten the screws.
		(Check if there is any play.)
Scanner LD	2	Is the laser diode or the	Yes	Replace the laser unit.
emission failure		scanner motor defective?
Scanner motor
rotation failure
Scanner	3	Is the scanner harness	No	Connect the harness correctly.
connection		connected properly?
failure		(Check if it is coming loose.)

I-14

Faint print

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o print	test out Printo print	test out Print	test out print	test out print	test out Print	Print out test	print out test	print out test	Print out test	print o Print out test	print o
o print	test out Printo print	test out Print	test out print	test out print	test out Print	Print out test	print out test	print out test	Print out test	print o Print out test	print o
o print	test out Printo print	test out Print	test out print	test out print	test out Print	Print out test	print out test	print out test	Print out test	print o Print out test	print o
o print	test out Printo print	test out Print	test out print	test out print	test out Print	Print out test	print out test	print out test	Print out test	print o Print out test	print o
o print	test out Printo print	test out Print	test out print	test out print	test out Print	Print out test	print out test	print out test	Print out test	print o Print out test	print o
o print	test out Printo print	test out Print	test out print	test out print	test out Print	Print out test	print out test	print out test	Print out test	print o Print out test	print o

Possible cause	Step	Check	Result	Remedy
Printer	1	Is the printer placed	No	Place the printer on a flat
installation		horizontally?		surface.
Toner cartridge	2	Does the problem happened	Yes	Remove and carefully shake the
		immediately after replacing the		toner cartridge horizontally.
		toner cartridge with a new
		one?
Scanner window	3	Is the scanner window dirty?	Yes	Clean the scanner window with
dirty				a soft dry cloth.
Laser unit failure	4	Is the problem solved by	Yes	Replace the laser unit.
		replacing the laser unit?

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