Brother 5450DN, HL-5450DN, HL-5450DNT manual 149

Troubleshooting

Examples of poor print quality	Recommendation
	 Make sure that you use paper that meets our specifications.
ABCDEFGH	uu Acceptable paper and other print media uu page 2
	 Check the machine’s environment. Conditions such as high temperatures
abcdefghijk
A B C D	and high humidity can increase the amount of background shading.
a b c d e	uu Product Safety Guide: Choose a safe location for your product
0 1 2 3 4	 Put in a new toner cartridge.
Grey background	uu Replacing the toner cartridge uu page 97
	 Put in a new drum unit.
	uu Replacing the drum unit uu page 105
	 Make sure that you use paper that meets our specifications. Rough-surfaced
	paper or thick paper may cause this problem.	6
	uu Acceptable paper and other print media uu page 2
	 Make sure that you choose the appropriate media type in the printer driver.
	uu Acceptable paper and other print media uu page 2
	 Choose Reduce Ghosting mode in the printer driver.
Ghost	uu Other Print Options uu page 36 (For Windows®)
	uu Print Settings uu page 59 (For Macintosh)
	 Put in a new drum unit.
	uu Replacing the drum unit uu page 105
	 Put in a new toner cartridge.
	uu Replacing the toner cartridge uu page 97
	 The fuser unit may be contaminated. Call your Brother dealer for service
	 Make sure that you use paper that meets our specifications. Rough-surfaced
ABCDEFGH	paper may cause the problem.
	uu Acceptable paper and other print media uu page 2
abcdefghijk
A B C D	 Clean the corona wire of the drum unit.
a b c d e	uu Cleaning the corona wire uu page 112
0 1 2 3 4	 The drum unit may be damaged. Put in a new drum unit.
Toner specks	uu Replacing the drum unit uu page 105
	 The fuser unit may be contaminated. Call your Brother dealer for service

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