If anyone owns one of these printers this is worth taking note of.

I've had my printer a couple of years and the images were loosing the magenta from the printouts. The printer reported the magenta toner cartridge half full, but I bought a new one, in case it had "gone off"

Images improved a little, but not very much at all.

I found the solution to the problem, with this article:

HP Colour LaserJet Fading Fix | The Reeves-Hall Family

Now you can either strip the printer down, as detailed in the instructions, or simply phone the number for HP and give them your printer model number, and tell them the print is fading. See my comments further down the article.

Regards,

Steve