The Omron RS 40-30 Receipt and Slip Printer offers a dynamic ink delivery system, ideal for printing receipts, tickets, and transaction reports on a regular basis. Each Compatible Epson Nylon Ribbon Cartridge has a space saving design which easily installs, to reduce downtime normally spent on complicated replacement procedures. These Compatible Epson Ribbons have the power and durability to tackle the most demanding print tasks. We carry the Compatible Epson ERC-03B Single Black Cash Register Ribbon Cartridges, which have been tested to ensure outstanding printing results. Also, the Omron RS40-30 Slip / Receipt cartridges contain a Thermal ribbon, which minimizes smudging and blurring. We guarantee excellent print quality with our Compatible Epson Ribbon Cartridges for your Omron Printer or we will refund your money within 90 days of purchase.