The Hewlett Packard LaserJet 3030 uses the Q2612A toner cartridge for laser toner refill. It yields approximately 2,000 pages at 5% coverage and is comparable to the HP Q2612A cartridge. This Q2612A cartridge is manufactured by MyInkCartridge.com a USA based company and is good for approx 2000 pages @ 5% coverage. These laser toner cartridges are compatible with printers that take HP's Q2612A cartridge. An original Q2612A cartridge is said to be good for about 10 refills before the transfer rol