Lexmark Optra T 用户指南

After loading envelopes in the envelope feeder, select the paper 
source from your software application, and then select the paper 
size and type from both your software application and from the 
printer operator panel.

To set the printer operator panel:

Make sure the 

for the envelope feeder (

)

is set to the correct envelope size you are 

loading (refer to the

 for detailed 

information about this setting).

Press 

 to return to 

.

: Software settings may override operator panel 

settings.

If the printer experiences an envelope jam while printing, see 

 for information on how to 

clear the jam.