Dell 2355 Mono Laser User Manual page 29

Place the machine on a flat, stable surface so that there is no incline greater than 2 mm
(0.08 inch). Otherwise, printing quality may be affected.
Unpack the machine and check all the enclosed items.
2
Remove the tape holding the machine tightly.
3
Install the print cartridge.
4
Load paper. See "Loading Paper".
5
Make sure that all the cables are connected to the printer.
6
Turn the printer on.
7
NOTE:
may be contaminated by toner, which can cause damage to the printer or result in bad printing quality.
28
200 mm
(7.8 inches)
When you move the printer, do not tilt or turn it upside down. Otherwise, the inside of the printer
200 mm
(7.8 inches)