Xerox : Learning About : Safety : Operational Safety : Operational Guidelines
Operational Guidelines
Do not remove any trays when the printer is printing.
Do not open the doors when the printer is printing.
Do not move the printer when it is printing.
Keep hands, hair, neckties, and so on, away from the exit and feed rollers.
Covers, which require tools for removal, protect the hazard areas within the printer. Do not remove the protective covers.
Do not override any electrical or mechanical interlock devices.
Do not attempt to remove paper that is jammed deeply inside the printer. Switch off the printer promptly and contact your local Xerox representative.
*CAUTION:  
The metallic surfaces in the fuser area are hot. Always use caution when removing paper jams from this area and avoid touching any metallic surfaces.
To avoid a tip hazard, do not push or move the device with all the paper trays extended.