HP Designjet printer complete list by model number, with suggestions on a reliable ink company for after-market ink, especially for HP Designjet 5000 and 5500, but also others.
HP Designjet 500 Mono 42-in Roll Printer
HP Designjet 500ps 42" Printer - Plotter - $825 | Skyelabs & Bob Skye | Skyelabs, Inc.
HP Smart Tank 500 All-in-One | HP® Africa
HP DesignJet 500 Large Format Inkjet Printer for sale online | eBay