Ink cartridges, unfilled, for printers; Ink cartridges, unfilled, for photocopiers; Ink cartridges, unfilled, for facsimile machines; Toner cartridges, unfilled, for printers and photocopiers; Toner cartridges, unfilled, for facsimile machines; Cleaning cartridges for photocopy machines and computer printers; Printheads for plotters; Image fuser units for computer printers comprising electro-mechanical rollers for the purpose of transferring toner onto paper; Document printers; Colour documen...