Our Sublimation toner cartridges were specifically designed for your HP LASERJET 4, LASERJET 4+, LASERJET 4M, LASERJET 4M+, LASERJET 5, LASERJET 5M, LASERJET 5N, LASERJET 5SE printer. They contain high grade toner and are backed by 37+ years of experience in the toner industry.