Lexmark 436 - Manual (Page 170)

251 paper jam
A sheet of paper failed to feed from the multipurpose feeder. If it is visible, gently pull the jammed sheet out.
If the sheet is not visible, complete the following steps:
1 Open the front door, and then remove the photoconductor kit and toner cartridge.
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2 Lift the flap at the front of the printer, and then remove any jams.
3 Reinsert the photoconductor kit and toner cartridge.
4 Close the front door.
5 Press .
Clearing jams 170