Dell M5200 Medium Workgroup Mono Laser Printer - Manual (Page 142)

Make sure the recommended print side is face down when loading all trays for simplex printing.
Make sure the recommended print side is face up when loading the multipurpose feeder.
Keep print media stored in an acceptable environment. See Storing print media .
Do not remove trays during a print job.
Push all trays in firmly after loading them.
Make sure the guides in the trays are properly positioned for the size of print media you have loaded.
Make sure the guides are not placed too tightly against the stack of print media.
Make sure all cables that connect to the printer are correctly attached.
Before removing jams
Remove any print jobs from the output bin before opening the upper front door to remove jams.
Identifying the print media path
The following illustration shows where paper jams may occur along the print media path. The path varies
depending on the input source (trays, multipurpose feeder, envelope feeder) you are using.