Epson All In One - RX595

Unfortunately the machine's firmware is designed to check all the different areas of the machine before it will allow to machine to be operational and the ink cartridges are one of the things that are essential. You have to realize that the companies that make these all in one devices have to make a profit to stay in business and the sale of the consumables like ink cartridges are where they make the bulk of their profits. If you want to scan with out having to buy ink cartridges you'll need to get a stand alone scanner it'll be a lot cheaper to operate over time.