Chapter 11
11 - 18
Black toner marks across the page
Make sure that you use paper that meets our specifications. (See
If you use label sheets for laser printers, the glue from the sheets may sometimes
stick to the OPC drum surface. Clean the drum unit. (See
Do not use paper that has clips or staples because they will scratch the surface of
the drum.
If the unpacked drum unit is in direct sunlight or room light, the unit may be
damaged.
The drum unit may be damaged. Put in a new drum unit. (See
White lines across the page
Make sure that you use paper that meets our specifications. A rough surfaced
paper or thick print media can cause the problem. (See
Make sure that you choose the appropriate media type in the printer driver or in
the machine’s Paper Type menu setting. (See
Basic tab
in the Software User’s
Guide on the CD-ROM and
on page 2-3 in the User’s
Guide.)
The problem may disappear by itself. Try printing multiple pages to clear this
problem, especially if the machine has not been used for a long time.
You may clear the problem by wiping the scanner window with a soft cloth. (See
Cleaning the laser scanner window
The drum unit may be damaged. Put in a new drum unit. (See
Lines across the page
Clean the inside of the machine and the primary corona wire in the drum unit.
(See
You may clear the problem by wiping the scanner window with a soft cloth.
(See
Cleaning the laser scanner window
The drum unit may be damaged. Put in a new drum unit. (See
Black lines down the page
Printed pages have toner stains down
the page.
Clean the primary corona wire of the drum unit. (See
Make sure the primary corona wire’s blue tab is at the home position (
▲
).
The drum unit may be damaged. Install a new drum unit. (See
The toner cartridge may be damaged. Put in a new toner cartridge. (See
on page 11-25.) Make sure that a torn piece of paper
is not inside the machine covering the laser scanner window.
The fixing unit may be smudged. Call Brother or your dealer for service.
White lines down the page
You may clear the problem by wiping the scanner window with a soft cloth.
(See
Cleaning the laser scanner window
The toner cartridge may be damaged. Put in a new toner cartridge. (See
Page skewed
Make sure the paper or other print media is loaded properly in the paper tray and
that the guides are not too tight or too loose against the paper stack.
Set the paper guides correctly.
If you are using the manual feed slot, see
To load paper or other media in the
The paper tray may be too full.
Check the paper type and quality. (See
Examples of poor print quality
Recommendation
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Содержание MFC 7820N - Network Monochrome Laser Multifunction Center
Страница 1: ...USER S GUIDE MFC 7420 MFC 7820N Version A ...