Xerox 3450B Service Manual - Page 29

Supply Life Counter Behavior An internal counter tracks copy count information and stores the values in NVRAM. The Main Board monitors this counter in order to display the near end-of-life and end-of-use messages. Consumable (toner/print cartridge) usage is tracked by the CRUM and monitored by the Main Board in order to display the near end-of-life and end-of-life messages. The value currently stored (in print cartridge cycles) can be viewed using the Read OPC Cycle Service Diagnostic. The trigger values are as follows: ■ 10K Cartridge: 78,000 = Toner Low, 92,000 = Replace Cartridge ■ 5K Cartridge: 39,000 = Toner Low, 46,000 = Replace Cartridge Life ratings are based on 5% coverage and an average 4 page job length. Consumables Print Cartridge* Service Parts Fuser Assembly Transfer Roller Feed Roller Kit Print Life High Capacity 10,000 Standard Capacity 5,000 125,000 125,000 125,000 1-10 Phaser 3450 Laser Printer Service Manual