Epson WP-4533 Error OxB3 Epson WP-4533 Error Code OxB3: Ink Device Error, Ink Cartridge Failure, and More If you own an Epson WP-4533 printer and come across Error Code OxB3 on its display, it could indicate various issues related to ink devices, cartridges, or internal components. Understanding its description and troubleshooting methods can help you…