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.
C7769-60390 Cutter Kit fit for HP DesignJet 500 510 800 Cutter Assembly POJAN 792855692515 | eBay
DesignJet 500 & DesignJet 510 misuse - YouTube
HP DesignJet 500 24-in Roll Printer Software and Driver Downloads | HP® Customer Support
HP DesignJet 500 C7770B Large Format 42-inch Inkjet Roll Printer Plotter | #1792530249