RG5-7681 laser scanner for use in the HP Color LaserJet 5550 series or 5500 series printers. The RG5-7681 Laserjet 5550 laser scanner is backwards compatible with the HP Laserjet 5500. (We have not tested a 5500 scanner in a 5550, so we can't verify that combination).

You may need to replace a laser scanner if you are experiencing any of the following error codes on your LaserJet 5550: Error 51.10, 51.11, 51.12, 51.13, 51.20, 51.21, 51.22, 51.23 . Call us with any questions 866-352-7108.

Please check out our helpful installation instructions How to Replace the Laser Scanner Assembly HP Color LaserJet 5500 5550