HP C3916A HP LaserJet 5, 5M, and 5N Printer - User's Guide - Page 140

Managing the Toner Cartridge Toner Cartridge Life The life of your toner cartridge depends on the amount of toner your print jobs require. When you print text, a toner cartridge lasts an average of 6,800 pages, printed at 5% coverage (a typical full-page business letter is about 5% coverage). This assumes that the print density setting is in the middle range (set to 3 - see "Adjusting Print Density" in Chapter 6). Using EconoMode can further extend toner cartridge life (see "EconoMode Printing" in Chapter 6). Storing, Installing, and Recycling the Toner Cartridge Storing: Do not remove the toner cartridge from its packaging until you are ready to use it. The shelf life of a cartridge in an unopened package is approximately 2 1/2 years of storage; the shelf life of a cartridge in an opened package is approximately six months. Installing and Recycling: To install a new toner cartridge, follow the instructions in the Installation and Recycling Guide included in your toner cartridge box. The guide also includes information on recycling. HP's Policy on Use of Non-HP Toner Cartridges Hewlett-Packard cannot recommend use of non-HP toner cartridges, either new or remanufactured. Because they are not HP products, HP cannot influence or control their quality. 8-2 Maintaining and Adjusting the Printer EN