Troubleshooting and routine maintenance
55
Improving the print quality
C
Examples of poor print
quality
Recommendation
Faint
Check the machine’s environment. Conditions such as humidity, high
temperatures, and so on, may cause this print fault. (See
If the whole page is too light, Toner Save mode may be on. Turn off Toner
Save mode in the machine’s menu settings or in the printer Properties of the
driver. (See
on page 19 or
Advanced tab in the Software User’s
Guide on the CD-ROM
.)
If this problem occurs when making copies, turn off Toner Save mode in the
machine’s menu setting. (See
Clean the scanner window and the primary corona wire of the drum unit. (See
Cleaning the laser scanner window
on page 71.) If the print quality has not improved, put in a new
drum unit. (See
Replacing the drum unit (DR-520)
Put in a new toner cartridge. (See
Gray background
Make sure that you use paper that meets our specifications. (See
Acceptable paper and other media
Check the machine’s environment. Conditions such as high temperatures and
high humidity can increase the amount of background shading. (See
Install a new toner cartridge. (See
Clean the primary corona wire and the drum unit. (See
on page 71 and
on page 72.) If the print quality
has not improved, put in a new drum unit. (See
Ghost
Make sure that you use paper that meets our specifications. Rough-surfaced
paper or thick paper may cause this problem.
Make sure that you choose the proper media type in the printer driver or in the
machine’s Paper Type menu setting. (See
on page 11 and
Basic tab in the Software User’s Guide on the
CD-ROM
.)
Replacing the drum unit (DR-520)
76.)
Toner specks
Make sure that you use paper that meets our specifications. Rough-surfaced
paper may cause the problem. (See
Acceptable paper and other media
Clean the primary corona wire and the drum unit. (See
on page 71 and
on page 72.) If the print quality
has not improved, put in a new drum unit. (See
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