Reduce the risk of wasted time with this hp 307a black laserjet toner cartridge it ensures bright prints first time every time thanks to its seamless compatibility with a number of hp colour laserjet pro printers assuring perfect alignment that means that every document comes out without flaws because it39s an original hp cartridge it reduces the risk of bleeds punctures and other issues that can occur with third party cartridges and ink formulations across each of the 7 000 pages that