Lexmark Optra Optra T User Manual page 53

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Stack height limiter
Loading Print Materials
4
Use the print materials stack height limiter as a guide for stack
height when loading print materials.
5
Load one type of print material in the multipurpose feeder. Do
not mix types. See the following directions to load each type
of print material.
– "Paper" on page 54
– "Envelopes" on page 55
– "Transparencies" on page 56
– "Letterhead (Single-sided printing)" on page 57
– "Letterhead (Duplex printing)" on page 57
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