Xerox 7042 - Manual (Page 145)

Maintenance Procedures
Clean the charge wire and the laser beam window
Clean the following parts of the machine when you replace the
drum unit or the ozone filter. The period for cleaning is every
10,000 pages or every 6 months.
• Laser beam window — The laser beam window is
located on the under side of the printer cover.
• Charge wire — The charge wire is located on the drum
unit above the green drum roller.
Use the following procedure to clean the charge wire and the
laser beam window:
1. Push the printer cover release button to open the printer
cover.
WARNING
Do not touch the heater unit inside the
machine. The heater unit is extremely hot while
the machine is operating.
Laser beam window 2. Wipe the laser beam window with a cotton swab or a dry
cloth. The following figure shows how to wipe the laser
beam window:
10-23