Brother FAX-2840 manual 105

	Troubleshooting
Examples of poor print quality	Recommendation
	 Make sure that you use paper that meets our specifications. (See
	Acceptable paper and other print media uu page 16.)
ABCDEFGH	 Check the machine’s environment. Conditions such as high
abcdefghijk	temperatures and high humidity can increase the amount of
A B C D	background shading. (See Product Safety Guide: Choosing a
	location.)
a b c d e
	 Clean the drum surface. (See Advanced User’s Guide: Cleaning
0 1 2 3 4
	the drum unit.)
Gray background	 Put in a new toner cartridge. (See Replacing the toner cartridge
	uu page 55.)
	 Put in a new drum unit. (See Replacing the drum unit
	uu page 62.)
	 Make sure that you use paper that meets our specifications.
	Rough-surfaced paper or thick print media may cause this
	problem. (See Acceptable paper and other print media
	uu page 16.)
	 Make sure that you choose the appropriate media type in the
	printer driver (for MFC-7240) or in the machine’s Paper Type
	menu setting. (See Acceptable paper and other print media
	uu page 16 and (for MFC-7240) Software User’s Guide: Basic
	tab.)
Ghost	 (For MFC-7240)
	Choose Reduce Ghosting mode in the printer driver. (See
	Software User’s Guide: Improve Print Output.)
	 Put in a new toner cartridge. (See Replacing the toner cartridge
	uu page 55.)
	 Clean the drum surface. (See Advanced User’s Guide: Cleaning
	the drum unit.)
	 Put in a new drum unit. (See Replacing the drum unit
	uu page 62.)
	 The fuser unit may be contaminated. Call Brother Customer
	Service.
	 Make sure that you use paper that meets our specifications.	B
	Rough-surfaced paper may cause the problem. (See Acceptable
ABCDEFGH	paper and other print media uu page 16.)
	 Clean the corona wire and the drum unit. (See Cleaning the
abcdefghijk
A B C D	corona wire uu page 60 and Advanced User’s Guide: Cleaning
	the drum unit.)
a b c d e
	 The drum unit may be damaged. Put in a new drum unit. (See
0 1 2 3 4
	Replacing the drum unit uu page 62.)
Toner specks	 The fuser unit may be contaminated. Call Brother Customer
	Service.

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