HP 3700 HP Color LaserJet 3550 and 3700 series - User Guide - Page 120

Managing supplies Using, storing, and monitoring print cartridges can help ensure quality printer output. Supplies life The life of the print cartridge depends on usage patterns and the amount of toner that print jobs require. For example, when printing text at 5 percent coverage, an HP print cartridge lasts an average of 4,000 or 6,000 pages, depending on the printer model. (A typical business letter is about 5 percent coverage.) Cartridge life expectancy is reduced by frequently printing many 1- or 2-page jobs, heavy coverage, and automatic duplexing. At any time, you can verify the life expectancy by checking the print cartridge life. See Checking the print cartridge life for more information. Approximate replacement intervals for supplies for the HP Color LaserJet 3550 series printer The following table lists the estimated replacement intervals for supplies and the printer control panel messages that prompt when to replace each item. Item Black cartridge Color cartridges Printer message Page count REPLACE BLACK CARTRIDGE REPLACE CARTRIDGE 6,000 pages2 4,000 pages2 Approximate time period1 6 months 4 months Image Transfer kit REPLACE TRANSFER KIT 75,000 pages3 60 months Image Fuser kit REPLACE FUSER KIT 75,000 pages3 60 months 1 Approximate life is based on 1,000 pages per month. 2 Approximate average A4-/letter-size page count based on approximately 5 percent coverage of individual colors. 3 Usage conditions and print patterns may cause results to vary. To order supplies online, go to http://www.hp.com/support/clj3550. Approximate replacement intervals for supplies for the HP Color LaserJet 3700 series printer The following table lists the estimated replacement intervals for supplies and the printer control panel messages that prompt when to replace each item. 108 Chapter 7 Maintenance ENWW