Brother DCP8020 239

Improving the print quality

This section provides information on the following topics:

	Examples of poor print	Recommendation
	quality
		Check the printer’s environment. Conditions such as humidity, high
	ABCDEFGH	temperatures, and so on may cause this print fault. (See Choosing a
	ABCDEFGH	location on page x.)
	abcdefghijk	location on page x.)
	A B C D	If the whole page is too light, Toner Save mode may be on. Turn off
	a b c d e	Toner Save mode in the printer Properties tab of the driver.
	0 1 2 3 4
	0 1 2 3 4	—OR—
	Faint	—OR—
	Faint	If your DCP is not connected to a computer, turn off Toner Save mode

		in the DCP itself. (See Toner Save on page 4-4.)
		Try installing a new toner cartridge. (See Replacing the toner cartridge
		on page 14-24.)
		Try installing a new drum unit. (See Replacing the drum unit on page
		14-30.)
		Make sure that you use paper that meets the recommended
	ABCDEFGH	specifications. (See About paper on page 2-1.)
	ABCDEFGH	Check the printer’s environment - high temperatures and high humidity
	abcdefghijk
	A B C D	can increase the amount of background shading. (See Choosing a
	a b c d e
	a b c d e	location on page x.)
	0 1 2 3 4	location on page x.)
	0 1 2 3 4	Use a new toner cartridge. (See Replacing the toner cartridge on page
	Gray background
	Gray background	14-24.)
		14-24.)
		Use a new drum unit. (See Replacing the drum unit on page 14-30.)
		Make sure you use paper that meets our specifications. Rough-surfaced
		paper or thick print media may cause this problem.
		Make sure that you choose the appropriate media type in the printer
		driver. (See About paper on page 2-1.)
		Try using a new drum unit. (See Replacing the drum unit on page
	Ghost	14-30.)
	Ghost
		Make sure that you use paper that meets our specifications.
	ABCDEFGH	Rough-surfaced paper may cause the problem. (See About paper on
	ABCDEFGH	page 2-1.)
	abcdefghijk	page 2-1.)
	A B C D	The drum unit may be damaged. Put in a new drum unit. (See Replacing
	a b c d e
	a b c d e	the drum unit on page 14-30.)
	0 1 2 3 4	the drum unit on page 14-30.)
	0 1 2 3 4
	Toner specks
		Make sure that you use paper that meets our specifications. (See About
		paper on page 2-1.)
		Choose Thick paper mode in the printer driver, or use thinner paper
		than you are currently using.
		Check the printer’s environment because conditions such as high
	Hollow print	humidity can cause hollow print. (See Choosing a location on page x.)
	Hollow print
		You may clear the problem by cleaning the primary corona wire inside
		the drum unit by sliding the blue tab. Make sure you return the blue tab
		to the home position (▲). (See Cleaning the drum unit on page 14-23.)
		The drum unit may be damaged. Put in a new drum unit. (See Replacing
		the drum unit on page 14-30.)
	All black

TROUBLESHOOTING AND ROUTINE MAINTENANCE 14 - 14