This is a compatible HP Q2612X Toner Cartridge (Jumbo version of Q2612A) - replaces HP (Hewlett Packard) Q2612X HIGH YIELD. This cartridge is equivalent to the HIGH CAPACITY Q2612X toner cartridge from HP yielding 3,000 pages at 5% page coverage. This is 50% more than the standard "Q2612A" version which only yields 2,000 pages. and works on the following HP laser printer models: LASERJET 1010 15PPM LSR HP LASERJET 1012 15PPM LSR HP LASERJET 1015 15PPM LSR HP LASERJET 1018 12PPM LSR HP LASERJET 1020 20PPM LSR HP LASERJET 1022 19PPM LSR HP LASERJET 1022n 19PPM LSR HP LASERJET 1022nw 19PPM LSR HP LASERJET 3015 15PPM - MFP LSR HP LASERJET 3020 15PPM - MFP LSR HP LASERJET 3030 15PPM - MFP LSR HP LASERJET 3050 19PPM LSR HP LASERJET 3052 19PPM LSR HP LASERJET 3055 19PPM LSR