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Do not load partial sheets with areas exposed by missing labels; this can cause labels to peel
off during printing, jam, and contaminate your printer and your print car tridge with adhesive. It
can also void your printer and cartridge warranties.
Avoid using labels that may release hazardous emissions when heated.
Note: Labels are one of the most difficult print materials for laser printers. The T620 and
T622 printers require a special fuser cleaner for label applications in o rder to
optimize feed reliability. See Ordering supplies for information on obtaining a
label fuser cleaner.
After continuously printing approximately 10,000 page sides of labels (or each t ime you replace the
print cartridge), complete the following steps to maintain pr inter feeding reliability:
1Print five sheets of paper.
2Wait approximately five seconds.
3Print five more sheets of paper.
For detailed information on label printing, characteristics, and design, refer to the Card Sto ck & Label
Guide, available on Lexmark Web site at www.lexmark.com.
Choosing card stock
Card stock is single-ply and has a large array of properties. The orientation of paper fibers, moisture
content, thickness, and texture can all affect printing on card stock. See Paper specifications for
information on the preferred weight for the grain direction of print materials.
When printing on card stock:
Be sure to select Card Stock in the Paper Type menu item in the Paper Menu. (See Paper
Type for detailed information about these setti ngs.)
Be aware that preprinting, perforation, and creasing can significantly affect the print quality and
cause paper handling or jamming problems.
Avoid using card stock that may release hazardous emissions when heated.
After printing approximately 10,000 page sides of card stock (or each time you replace th e print
cartridge), complete the following steps to maintain printer feeding reliability:
1Print five sheets of paper.
2Wait approximately five seconds.
3Print five more sheets of paper.
For more information, refer to the Card Stock & Label Guide, available on the Lexmark Web site at
www.lexmark.com.