HP 4550 Service Manual - Page 85

CAUTION Replacement intervals for consumables You can identify consumable items by their labeling and their blue plastic handles. For instructions on installing consumables, see the installation guides supplied with each consumable item. The following table lists the replacement intervals and part numbers for printer consumable items, and the control panel messages that prompt you when it is time to replace each item. Table 4-2 Approximate replacement interval for consumable items Consumable Printer message Black (K) toner TONER K LOW or cartridge TONER K OUT Cyan (C) toner TONER C LOW or cartridge TONER C OUT Magenta (M) TONER M LOW or toner cartridge TONER M OUT Yellow (Y) toner TONER Y LOW or cartridge TONER Y OUT Page count Approximate Part number time period1 9,000 pages 2 4.5 months R94-4005-410CN (see Table 8-1) 6,000 pages 2 3 months R94-4004-410CN (see Table 8-1) 6,000 pages 2 3 months R94-4003-410CN (see Table 8-1) 6,000 pages 2 3 months R94-4002-410CN (see Table 8-1) Drum kit DRUM KIT OUT REPLACE DRUM KIT WASTE TONER FULL REPLACE KIT 25,000 black- 12.5 months for R94-4001-410CN and-white- black-and-white- (see Table 8-1) only pages, or only pages, or 3 6,250 color months for color pages. pages. Transfer kit TRANSFER KIT OUT REPLACE KIT 100,000 black-andwhite-only pages, or 25,000 color pages. 50 months for R96-5009-000CN black-and-white- (see Table 8-1) only pages, or 12.5 months for color pages. Fuser kit FUSER KIT OUT REPLACE KIT 100,000 black-andwhite-only pages, or 50,000 color pages. 50 months for R96-5007-000CN black-and-white- (110V) only pages, or R96-5008-000CN 25 months for (220V) color pages. (see Table 8-1) 1. Approximate lives are based on 2,000 pages per month. 2. The approximate average A4/Letter-size page count is based on 5% coverage of individual toner colors. Page counts are only estimations; usage conditions and print patterns cause results to vary. Hewlett-Packard recommends the use of HP products in this printer. Use of non-HP products can cause problems the require service not covered by the Hewlett-Packard warranty or service agreements. C7085-90921 Chapter 4 Printer maintenance 83