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Troubleshooting and routine maintenance
127
C
Coloured streaks or bands
down the page
One of the toner cartridges may be damaged. Replace the toner
cartridge that matches the colour of the streak or bond.
Clean all four corona wires (one for each colour) of the drum unit by
sliding the green tab. (See
Make sure each corona wire’s green tab is at the home position (
b
).
The drum unit may be damaged. Put in a new drum unit. (See
The fuser unit may have a smudge mark. Call Brother or your dealer
for service.
Coloured lines across the page
One of the toner cartridges may be damaged. Replace the toner
cartridge that matches the colour of the line.
The drum unit may be damaged. Put in a new drum unit. (See
Clean all four corona wires (one for each colour) of the drum unit by
sliding the green tab. (See
Clean the laser scanner windows with a soft cloth. (See
White spots or hollow print
Make sure that you use paper that meets our specifications. (See
Acceptable paper and other media
Make sure that the recommended paper was used.
Choose
Thick paper
mode in the printer driver or in the machine
’
s
Paper Type menu setting, or use thinner paper than you are currently
using. (See
Basic tab in the Software
User’s Guide on the CD-ROM
.)
Change the paper to fresh, unopened paper.
Check the machine
’
s environment. Conditions such as high humidity
can cause hollow print. (See
Clean all four corona wires (one for each colour) of the drum unit by
sliding the green tab. (See
If the print quality has not improved, put in a new drum unit. (See
Clean the drum unit. (See
Completely blank or some
colours are missing.
Make sure that the toner cartridges are installed properly. (See
One of the toner cartridges may be damaged. Identify the missing
colour and put in a new toner cartridge for the colour with the white
line. (See
The drum unit may be damaged. Put in a new drum unit. (See
Examples of poor print
quality
Recommendation
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ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
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ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
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ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
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Содержание MFC-9840CDW
Страница 1: ...USER S GUIDE MFC 9840CDW Version B ARL ASA NZ ...
Страница 11: ...Section I General I General information 2 Loading paper and documents 11 General setup 22 Security features 28 ...
Страница 90: ...Chapter 11 80 ...
Страница 91: ...Section III Copy III Making copies 82 ...
Страница 100: ...Chapter 12 90 ...
Страница 101: ...Section IV Direct printing IV Printing photos from a digital camera 92 Printing data from a USB flash memory drive 96 ...
Страница 109: ...Section V Software V Software and network features 100 ...