HP 4700n Service Manual - Page 120

Managing the print cartridge This section provides information about HP print cartridges, their life expectancies, how to store them, and how to identify genuine HP supplies. Information on non-HP print cartridges is also included. HP print cartridges When you use a genuine HP print cartridge, you can obtain several types of information, such as the following: ● Amount of toner remaining ● Estimated number of pages remaining ● Number of pages printed 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. Service or repair that is required as a result of using a non-HP print cartridge will not be covered under the printer warranty. When you use a non-HP print cartridge, certain features, such as remaining toner volume data may not be available. Using genuine HP supplies ensures the availability of all HP printing features. Print cartridge authentication The printer will let you know if a print cartridge is not a genuine HP print cartridge when you insert it into the printer. If you believe that you purchased a genuine HP supply, go to www.hp.com/go/ anticounterfeit. Print cartridge storage Do not remove the print cartridge from its package until you are ready to use it. Always store the print cartridge in the proper environment. The storage temperature should be between -20° to 40°C (-4° to 104°F). The relative humidity should be between 10% and 90%. 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 and the length of life for the components inside the cartridge. When printing text at approximately 5% coverage (typical for a business letter), the HP Color LaserJet 4700 Series print cartridge lasts an average of 10,000 pages (color) and 11,000 pages (mono). The HP Color LaserJet CP4005 Series print cartridges, both black and color, last 7,500 pages. The page-yield specification that HP provides is a general guideline. Actual yield can vary according to usage conditions. At any time, you can verify life expectancy by checking the supply level, as described below. 100 Chapter 4 Maintenance ENWW