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7.2 Extending EP-S Cartridge Life
Each EP-S cartridge contains a photosensitive drum and toner, assuring
you of optimum print quality throughout the life of the cartridge. When
the cartridge runs out of toner, you replace it with a new one.
CAUTION: The use of refilled EP-S cartridges is not recommended and may
have an adverse effect on print quality. Consummables available through
Digital, or recommended by Digital, should be used with Digital laser
printers.
A new EP-S cartridge lasts for approximately 4,000 pages (A4 or letter-size)
of typical word processing text at 4% coverage with the print density dial set
to 7. However, the cartridge life will vary depending on the amount of toner
used for your particular application and the print density setting. If your
average page contains more ‘‘white space’’ than the typical 4% coverage,
the cartridge life will be longer. You can significantly extend the life of an
EP-S cartridge by setting the print density adjustment dial to the highest
number possible (lightest setting) that gives you acceptable print quality.
The higher setting reduces the amount of toner used. For most applications
the dial can be set to 7. See Section 2.10 for information about setting the
print density.
The following rules apply to cartridge care:
• For best print quality always use the EP-S cartridge before the
expiration date printed on the box.
• Do not remove the cartridge from its aluminum packing bag until you
are ready to use it.
• Store the cartridge in an area where the average temperature is 0° to
35°C (32° to 95°F).
• Allow the cartridge to adjust to room temperature for at least one hour
when moving a cartridge from a cold location to a hot location.
• Do not leave the cartridge exposed to direct sunlight.
• Do not stand the cartridge on its end or lay it upside down.
• Do not attempt to disassemble the cartridge or open the light blocking
shutters. Exposing the cartridge to light may result in poor print
quality.
• Do not open the drum protection shutter. Touching the photosensitive
drum will damage it and cause problems with print quality.
Maintenance 7–19