Brother FAX 4750 manual Print Quality Difficulties

Paper Handling Difficulties (Cont.)

Print

Quality

Difficulties

Difficulty	Suggestions
What paper can I use?	You can use plain paper, envelopes,
	transparencies, labels and organizer paper.
	(For information on paper you can use, see
	Acceptable Paper, on page 2-5.)
How can I clear paper	See Printer Jams, on page 17-6.
jams?
Printouts are too dark	Adjust the print conditions by setting the Print
or light.	Density function. It has been factory set to the
	middle position. (See Setting the Print
	Density, on page 5-6.)
Printed pages contain	You may fix this by wiping the scanner windows
white stripes.	with a clean soft cloth. (See Routine
	Maintenance and Cleaning the Drum Unit,
	on pages 17-21 and 17-22.) If you still see
	white stripes or faint images and the display
White Stripes or	shows CHANGE DRUM SOON, replace the
	drum unit with a new one. Check the machine’s
Faint lmages	environment. Conditions such as humidity, high
	temperatures, etc. may cause this print defect to
	occur.
Printed pages are	Clean the machine’s interior and the primary
stained corona with	wire of the drum unit. (See Routine
toner or have vertical	Maintenance and Cleaning the Drum Unit,
stripes.	on pages 17-21 and 17-22.) Make sure that the
	tab of the corona wire is at the home position.
	If after cleaning, you still see dark stripes or
	toner stains and the display shows CHANGE
Dark Stripes or	DRUM SOON, replace the drum unit with a
	new one.
Toner Stains
Printed pages have	Make sure that you use paper that meets the
white spots in black	specifications. Rough surface or thick media can
text and graphic areas.	cause the problem. If you still see white spots
	and the display shows CHANGE DRUM
	SOON, replace the drum unit with a new one.
	Check the machine’s environment; conditions
	such as high humidity may cause this situation
White Spots	to occur.
Toner scatters and	Adjust the print conditions by setting the Print
stains the printed	Density function. Remove the drum unit and
page.	clean the machine’s interior. (See Routine
	Maintenance, Cleaning the Printer and
	Cleaning the Drum Unit, on pages 17-21 and
	17-22.) Make sure that you use paper that
	meets specifications. (See page 2-6.) If you
	still have scattered toner and the display shows
Scattering Toner	CHANGE DRUM SOON, replace the drum
	unit with a new one. Check the machine’s
	environment; high temperature and high
	humidity conditions may cause this condition to
	occur.

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