Brother 7860DW, MFC-7360 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 on page 17.)
		 Check the machine’s environment. Conditions such as high
ABCDEFGH
abcdefghijk		temperatures and high humidity can increase the amount of
A B C D		background shading. (See Safety and Legal booklet.)
		 Put in a new toner cartridge. (See Replacing the toner cartridge
a b c d e
		on page 57.)
0 1 2 3 4
		 Put in a new drum unit. (See Replacing the drum unit on page 63.)
Gray background
		 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
		on page 17.)
		 Make sure that you choose the proper media type in the printer
		driver or in the machine’s Paper Type menu setting. (See
		Acceptable paper and other print media on page 17 and Basic tab
		in the Software User’s Guide.)
		 Choose Reduce Ghosting mode in the printer driver. (See Ghost
	Ghost	Reduction Setting in the Software User’s Guide.)

Put in a new toner cartridge. (See Replacing the toner cartridge on page 57.)

Put in a new drum unit. (See Replacing the drum unit on page 63.)

The fuser unit may be contaminated. Call Brother Customer Service.

Make sure that you use paper that meets our specifications.

	Rough-surfaced paper may cause the problem. (See Acceptable
ABCDEFGH	paper and other print media on page 17.)
	 Clean the corona wire and the drum unit. (See Cleaning the
abcdefghijk
A B C D	corona wire on page 62 and Cleaning the drum unit in Appendix	B
	A of the Advanced User's Guide.)
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 on page 63.)
Toner specks	 The fuser unit may be contaminated. Call Brother Customer
	Service.

Make sure that you use paper that meets our specifications. (See

Acceptable paper and other print media on page 17.)

	 Choose Thick Paper mode in the printer driver, choose Thick in
	the machine’s Paper Type menu setting or use thinner paper than
	you are currently using. (See Paper Type on page 17 and Basic
	tab in the Software User’s Guide.)
	 Check the machine’s environment. Conditions such as high
	humidity can cause hollow print. (See Safety and Legal booklet.)
Hollow print	 The drum unit may be damaged. Put in a new drum unit. (See
	Replacing the drum unit on page 63.)

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