Epson WF-R4640 Error OxBF The Epson WF-R4640 printer occasionally encounters an error code OxBF, which is displayed on its screen. This error code relates to an ink device error, specifically ink cartridge failure or issues with the holder board assembly. It could be caused by a failure in the contact between the Cartridge Status Information…
Epson WF-R4640 Error Code OxBF Part 7788
