HP 2070N User Manual
Page 82
Troubleshooting
6 - 11
6
Gray background
■
Make sure that you use paper that meets the recommended specifications. See
What kind of paper can I use? on page 1-4
■
Check the printer’s environment - high temperatures and high humidity can
increase the amount of background shading. See Positioning the printer on page
1-3.
■
Use a new toner cartridge. See Replacing the toner cartridge on page 5-3
■
Use a new drum unit. See Replacing the drum unit on page 5-8.
Ghost
■
Make sure you use paper that meets our specifications. Rough-surfaced paper
or thick print media may cause this problem. See What kind of paper can I use?
on page 1-4.
■
Make sure that you choose the appropriate media type in the printer driver. See
What kind of paper can I use? on page 1-4.
■
Try using a new drum unit. See Replacing the drum unit on page 5-8.
Toner specks
■
Make sure that you use paper that meets our specifications. Rough-surfaced
paper may cause the problem. See What kind of paper can I use? on page 1-4.
■
The drum unit may be damaged. Put in a new drum unit. See Replacing the drum
unit on page 5-8.
Hollow print
■
Make sure that you use paper that meets our specifications. See What kind of
paper can I use? on page 1-4
■
Choose Thick paper mode in the printer driver, or use thinner paper than you
are currently using.
■
Check the printer’s environment because conditions such as high humidity can
cause hollow print. See Positioning the printer on page 1-3.
All black
■
Clean the primary corona wire inside the drum unit by sliding the blue tab. Make
sure you return the blue tab to the home position (
■
The drum unit may be damaged. Put in a new drum unit. See Replacing the drum
unit on page 5-8.
Examples of poor print
quality
Recommendation
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4