Unfilled toner cartridges for printers; Print heads for document printers and plotters; Photo printers; Cleaning cartridges for photocopy machines and computer printers; Electronic control circuits for printers; Downloadable printable planners and organizers; Entertainment system comprising a computer, multiple image display screen, multiple input devices and a printer; Video printers; Colour document printers; Ink-jet color printers for documents; Inkjet printers for use with computers