Dell 5110cn Service Manual page 6

4.2 Driving units
When servicing gears or other driving units, be sure to turn them OFF and plug off. Drive them
manually when required.
Never touch the gears or other driving units while the printer is running.
4.3 High-temperature units
When servicing high-temperature units (securing unit, etc.), be sure to turn them OFF to prevent burns,
injuries and other troubles, remove the power plug and start service processes after they have cooled
down enough.
Immediately after completion of operation, they are still hot. Start services after
more than 40 minutes.
Intro-4