Improving The Print Quality - Brother MFC-9840CDW User Manual
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Also See for MFC-9840CDW:
- User manual (263 pages) ,
- Network user's manual (204 pages) ,
- Quick setup manual (53 pages)
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Improving the print quality
If you have a print quality problem, print a test page first (Menu, 4, 2, 3). If the printout looks good,
the problem is probably not the machine. Check the interface cable or try the machine on another
computer.
Note
You can resolve a print quality problem by replacing a toner cartridge with a new one when the
LCD shows the Toner Life End message.
Examples of poor print
quality
White lines or bands or ribbing
across the page
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Colours are light or unclear on
the whole page.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
White streaks or bands down
the page
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Recommendation
Make sure that the machine is on a solid level surface.
Make sure that the toner cartridges are installed properly.
(See Replacing a toner cartridge on page 169.)
Shake the toner cartridges gently.
Make sure that the drum unit is installed properly. (See Replacing the
drum unit on page 174.)
Make sure that you use paper that meets our specifications. A rough
surfaced paper or thick print media can cause the problem.
(See Acceptable paper and other media on page 11.)
Clean the laser scanner windows with a soft cloth. (See Cleaning the
laser scanner windows on page 151.)
The drum unit may be damaged. Put in a new drum unit.
(See Replacing the drum unit on page 174.)
Make sure that the recommended paper was used.
Change the paper to freshly unpacked paper.
Make sure that the front cover is closed properly.
Shake the toner cartridges gently.
Clean the laser scanner windows with a soft cloth. (See Cleaning the
laser scanner windows on page 151.)
Turn off Toner Save. (See Toner save on page 26.)
Shake the toner cartridges gently.
Clean the laser scanner windows with a soft cloth. (See Cleaning the
laser scanner windows on page 151.)
Troubleshooting and routine maintenance
C
C
119
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