Brother HL-1030, 1240, 1250 service manual Gray background, Hollow print

I-18

CHAPTER 6 TROUBLESHOOTING

Gray background

Possible cause	Step	Check	Result	Remedy
Print paper	1	Does the paper being used	No	Recommend to use the specified
		meet the paper specification		types of paper.
		(weight, etc.).
			Yes	Recommend to change to
				freshly unpacked paper.
Toner sensing	2	Is Ready LED on even after	Yes	Toner sensor failure. Clean the
failure		removing the drum unit and		toner sensor and check the
(printer side)		toner cartridge?		toner sensor connection.
Toner cartridge	3	Is the problem solved after	Yes	Replace the toner cartridge.
failure		replacing the toner cartridge?
Drum unit failure	4	Is the problem solved after	Yes	Replace the drum unit.
		replacing the drum unit?
			No	Replace the high-voltage power
				supply PCB.
NOTE:

The following cases increase the possibility of this problem.

•Acid paper is being used.

•The drum unit is at the end of its life.

•There is dust or paper powder.

I-19

Hollow print

User Check

(1)Check the paper used meets the recommended paper specifications.

(2)Select the ‘Thick paper mode’ in the printer driver, or use thinner paper than you are currently using.

(3)Check the printer’s environment, conditions such as high humidity may cause this situation to occur.

Possible cause	Step	Check	Result	Remedy
Print paper	1	Is thick paper of more than	Yes	Recommend to use the specified
		43lb being used or extremely		types of paper.
		rough surface paper?
			No	Refer and compare with I-15.

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