Printer Fuser Components; Safety Components; Caution Labels - Lexmark W820 - Optra B/W Laser Printer Service Manual

To avoid permanent eye damage, follow these directions:
•
Before starting any service procedure, switch off the printer power and unplug the
power cord from the AC wall outlet.
•
Do not disassemble the printer Printhead Assembly or any laser component that
displays a Laser Warning sticker.
•
Use caution when you are working around the printer Printhead Assembly or when
you are performing laser related troubleshooting or repair procedures.
•
Never place a mirror or a reflective tool or object in the laser beam path.
•
Do not disassemble the printer in such a way that the laser beam can exit the print
engine during a print cycle.

Printer Fuser Components

CAUTION: This printer uses heat to fuse the toner image to a sheet paper. The printer
Fuser Assembly is very hot. Switch off printer power and wait at least 45 minutes for the
fuser to cool before you attempt to service the printer Fuser Assembly or adjacent
components.

Safety Components

Make sure covers and panel are in place and that all interlock switches are all functioning
correctly after you have completed a printer or option service call. If you bypass, or cheat,
an interlock switch during a service call, use extreme caution when working on or around
the printer or options.

Caution Labels

Throughout the equipment, warning labels are displayed on potentially dangerous
components. When you service the printer and options, check to make sure that all
caution labels are in place.
Most importantly, read and obey all posted caution labels.
4025-Finisher
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Introduction