Promote your business with the exquisite marketing materials produced with this hp 507a black toner cartridge the 5 500 page duty cycle ensures it can handle the needs of your busy office to print out a variety of emails documents and other materials all day long with the speed and precision produced by your compatible hp laserjet pro or enterprise printer installation is fast thanks to its swap and install compatibility and it works smoothly to ensure it wont damage your printer recycle y