HP LaserJet 5100 Printer series - Manual (Page 77)

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Chapter 3: Printer Maintenance 69
Managing the Print Cartridge
HP Policy on Non-HP Print Cartridges
Hewlett-Packard Company cannot recommend use of non-HP print
cartridges, either new or remanufactured. Because they are not HP
products, HP cannot influence their design or control their quality.
Caution Any damage caused by a non-HP print cartridge is not covered
under the HP warranty and service agreements.
To install a new HP print cartridge, follow the instructions included
in the start guide. To replace a HP print cartridge and recycle the
used cartridge, follow the instructions included with the new
cartridge.
Print Cartridge Storage
Do not remove the print cartridge from its package until you are
ready to use it. (The shelf life of a cartridge in an unopened package
is approximately 2.5 years.)
Caution To prevent damage to the print cartridge, do not expose it to light
for more than a few minutes.
Print Cartridge Life Expectancy
The life of the print cartridge depends on the amount of toner that
print jobs require. When printing text at 5% coverage, an HP print
cartridge lasts an average of 10,000 pages. (A typical business
letter is about 5% coverage.) This assumes that print density is set
to 3 and EconoMode is off. (These are the default settings.)
Caution HP does not recommend full-time use of EconoMode. (If
EconoMode is used consistently to print media with less than 5%
toner coverage, it is possible that the toner supply will outlast the
mechanical parts in the print cartridge.)