This latest guide is for the HP Colour LaserJet Enterprise 600 M651/M680 Series black and colour toner cartridges.
HP’s Colour LaserJet Enterprise M680
The M651/680 series of multifunction colour laser printers feature print speeds of 45ppm black and colour, and a print resolution of 1,200 x 1,200dpi. The cartridges are all-in-one type cartridges consisting of the toner supply, drum, and waste chamber, and the M651 and M680 share the same black cartridge, but use different colour cartridges. The method to remanufacture them all is the same, but the colours use different chips and have different yields.
The M651 machines include the HP Colour LaserJet Enterprise M651n, M651dn and M651xh, while the M680 machines include the HP Colour LaserJet Enterprise M680dn, M680f and M680z. You can download the latest guide here, and download the guide for the HP Enterprise Flow MFP M880 and M855 cartridges here. You can also download a guide for the HP Enterprise Flow MFP M630 here; and a guide for the Samsung ProXpress M3320ND machines here.