Lexmark 640 Benutzerhandbuch

The following illustration shows the path that print media travels through the printer. The path varies depending on the input 
source (trays, multipurpose feeder, envelope feeder) and output bins (finisher, stacker, expander, mailbox) you are using.

The numbers in following illustration indicate the numbers that can appear on the operator panel and designate the general 
area of a paper jam.