Epson WF-5620-5621-5623 Error 0xB6 When using the Epson WF-5620-5621-5623 printer, you may come across an error code 0xB6 displayed on the printer. This error typically indicates an ink-related issue, such as an ink device error, ink cartridge failure, holder board assembly failure (CSIC or contact failure), main board failure, or cable or FFC disconnection. The…