Lexmark 22L0176 - C 770dn Color Laser Printer Manual page 98

Pick roller technology
The Lexmark T620 and T622 printers use an auto compensator to pick the media rather than the corner buckler system
used by earlier printer models.
The Lexmark T620 and T622 trays have two rollers that touch the media in two places (see Figure 16 on page 98). Avoid
placing deep perforations in these areas since the media may nest, causing multiple sheet feeds. Perforations that could
cause nesting and tenting should fall outside the 0.31— 0.79 in. area on the leading edge of the media. (This is different
from the 0.50 in. we recommend leaving at the top of the form for printers with a corner buckler system.) You may want to
use micro-perfs to avoid nesting problems. See Perforations and die-cuts on page 8 for more information.
0.79 in.
Labels are one of the most difficult print materials for laser printers. A special fuser cleaner should be used for label
applications to optimize feed reliability. See your printer documentation for information on ordering additional label fuser
cleaners.
When printing on labels:
• Using the printer operator panel, set the Paper Type to Labels in the Paper Menu. For vinyl and other heavy
labels, set the Labels Weight (under the Paper Weight menu) to Heavy, and set the Labels Texture (under the
Paper Texture menu) to Smooth.
• Do not load labels together with paper or transparencies in the same paper tray. Combining print materials can
cause feeding problems.
• Use full label sheets. Partial sheets may cause labels to peel off during printing, resulting in a paper jam. Adhesive
material may contaminate your printer. It could also void your printer and cartridge warranties.
Note: The Lexmark T622 does not support vinyl labels.
Lexmark T620, T622
Pick roller location
0.31 in.
Direction of feed
Figure 16. Location of pick rollers
98
1.34 in.
1.93 in.
4.84 in.
5.43 in.