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Improving the print quality C<br />
Examples of poor print<br />
quality<br />
106<br />
ABCDEFGH CDEF<br />
abcdefghijk defg<br />
ABCD BC<br />
abcde b c d<br />
01234 2 3<br />
Faint<br />
ABCDEFGH<br />
abcdefghijk<br />
ABCD<br />
abcde<br />
01234<br />
Gray background<br />
Ghost<br />
ABCDEFGH<br />
abcdefghijk<br />
ABCD<br />
abcde<br />
01234<br />
Toner specks<br />
Recommendation<br />
Check the machine’s environment. Conditions such as humidity, high<br />
temperatures, and so on, may cause this print fault. (See Choosing a<br />
location on page 86.)<br />
If the whole page is too light, Toner Save mode may be on. Turn off Toner<br />
Save mode in the machine’s menu settings or in the printer Properties of the<br />
driver. (See Toner save on page 22 or Advanced tab in the Software User’s<br />
Guide on the CD-ROM.)<br />
If this problem occurs when making copies or printing received faxes, turn off<br />
Toner Save mode in the machine’s menu setting. (See Toner save on page<br />
22.)<br />
Clean the scanner window and the primary corona wire of the drum unit. (See<br />
Cleaning the laser scanner window on page 124 and Cleaning the<br />
corona wire on page 126.) If the print quality has not improved, put in a new<br />
drum unit. (See Replacing the drum unit (494-6) on page 130.)<br />
Put in a new toner cartridge. (See Replacing the toner cartridge (494-7)<br />
on page 127.)<br />
Make sure that you use paper that meets our specifications. (See<br />
Acceptable paper and other media on page 12.)<br />
Check the machine’s environment. Conditions such as high temperatures and<br />
high humidity can increase the amount of background shading. (See<br />
Choosing a location on page 86.)<br />
Install a new toner cartridge. (See Replacing the toner cartridge (494-7)<br />
on page 127.)<br />
Clean the primary corona wire and the drum unit. (See Cleaning the corona<br />
wire on page 126 and Cleaning the drum unit on page 127.) If the print<br />
quality has not improved, put in a new drum unit. (See Replacing the drum<br />
unit (494-6) on page 130.)<br />
Make sure that you use paper that meets our specifications. Rough-surfaced<br />
paper or thick paper may cause this problem.<br />
Make sure that you choose the proper media type in the printer driver or in the<br />
machine’s Paper Type menu setting. (See Acceptable paper and other<br />
media on page 12 and Basic tab in the Software User’s Guide on the<br />
CD-ROM.)<br />
Put in a new drum unit. (See Replacing the drum unit (494-6) on page<br />
130.)<br />
Make sure that you use paper that meets our specifications. Rough-surfaced<br />
paper may cause the problem. (See Acceptable paper and other media<br />
on page 12.)<br />
Clean the primary corona wire and the drum unit. (See Cleaning the corona<br />
wire on page 126 and Cleaning the drum unit on page 127.) If the print<br />
quality has not improved, put in a new drum unit. (See Replacing the drum<br />
unit (494-6) on page 130.)
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