Vertical Black Lines
| Laser
printer print defects - Vertical Black Lines |
|
| Problem
|
Cause
|
Solution
|
How
common* |
Comments |
| Vertical black
lines |
Contaminated
fuser entrance guide |
Clean the
guide |
5 |
|
| Vertical black
lines |
Defective
toner cartridge. |
Replace the
toner cartridge. |
9 |
By far the
most common cause. |
| vertical black
lines |
This can be
a "video line" generated by a defective formatter. |
Replace formatter. |
|
|
| Vertical black
lines |
Worn fuser
film |
1. Set the
fuser to a lower temperature mode. 2. Replace the fuser. Note To prevent
the print-quality problem, reduce printing on large volumes of narrow media,
such as envelopes. Instead, alternate smaller volumes of narrow media with
full-page printing jobs. |
|
|
| *On
a scale of 1-10, how often this problem occurs (10 being most likely). |
|
