Lenovo LJ2500 User Manual page 108

Image Defect Samples Recommendation
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Black Horizontal repetitive
defects
Toner scatters and stains the
printed page.
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
White horizontal stripes
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Horizontal Lines
• The drum unit may be damaged. Install a new
drum unit. See
Chapter 5.
• Make sure that you use paper that meets
specifications. See
Use?" in Chapter 1.
✏ Note
• If you use label sheets for laser printers, the glue
from the sheets may sometimes stick to the OPC
drum surface. Clean the drum unit. See
"Improving the Print Quality"
• Do not use paper that has clips or staples because
they will scratch the surface of the drum.
• If the unpacked drum unit is subject to excessive
direct sunlight or room light, the unit may be
damaged.
• Make sure that you use paper that meets the
specifications. A rough surfaced paper or thick
media can cause the problem.
• Make sure that you select the appropriate media
type in the printer driver.
• The problem may disappear by itself. Try printing
multiple pages to clear this problem, especially if
the printer has not been used for a long time.
• The drum unit may be damaged. Install a new
drum unit. See
Chapter 5.
• Clean the printer interior and the primary corona
wire in the drum unit. See
• The drum unit may be damaged. Install a new
drum unit. See
Chapter 5.
6-17
CHAPTER 6 TROUBLESHOOTING
"Replacing the Drum Unit"
"What Kind of Paper can I
in this chapter.
"Replacing the Drum Unit"
"Cleaning"
"Replacing the Drum Unit"
in
in
in Chapter 5.
in