HP Fuser Assembly for LaserJet 5550

Getting blank pages after you installed a new cartridge? Check that the sticker from the cartridge was properly removed. Alternatively, run the clean print head function to make sure all air bubbles are removed. Do not remove the cartridge once it has been installed.

If your print settings are too dark, it could be detrimental to the life of the cartridge in the long run. It’s important that the density control of the machine be properly set to prevent the machine from pulling too much toner into itself.

Most printers have a built-in diagnostics program which can be very useful for troubleshooting problems and test-printing without a computer. They are usually initiated by pressing a button or two while turning on the printer.