The Genuine Riso Risograph TR Ink 800ml Black Printer Ink is specifically designed for use with RISOGRAPH printers, such as the TR 1510, 1530, 1550, and 1610 models. Made in Japan, this original inkjet print technology ensures high-quality prints in black. This unit quantity of 1 ink bottle is compatible with the specified RISOGRAPH models, providing reliable and consistent results for all your printing needs.