Lexmark Optra Optra T User Manual page 29

Recommended papers
To ensure the best print quality and feed reliability, use 75 g/m 2
(20 lb) xerographic paper. Business papers designed for general
business use may also provide acceptable print quality.
Always print several samples before buying large quantities of any
type of paper. When choosing any papers, consider the weight, fiber
content, and color of the paper.
The laser printing process heats paper to high temperatures of
o o
212 C (414 F). Use only papers that are able to withstand these
temperatures without discoloring, bleeding, or releasing hazardous
emissions. Check with the manufacturer or vendor to determine
whether the paper you've chosen is acceptable for laser printers.
Choosing Print Materials 29