Welcome WELCOME Welcome An introduction to the HP DesignJet 430, 450C and 455CA printers and their accessories The HP DesignJet 430, 450C and 455CA are large-format inkjet printers employing HP disposable print cartridge technology. 430 The HP DesignJet 430 prints in monochrome and uses a single cartridge, containing black ink, one of which is supplied with your printer. 450C/ 455CA The HP DesignJet 450C and 455CA print in color or mono- chrome, using yellow, cyan, magenta and black cartridges, a set of which is supplied with your printer. All other supported colors are generated using these four cartridges. ix