Epson PX-S7050 Error OxB5 Epson PX-S7050 Error code OxB5 Display on PRINTER – Description and Troubleshooting When encountering the Epson PX-S7050 Error code OxB5 displayed on your printer, it usually indicates an optional cassette unit communication error. This error suggests that the function code is abnormal, leading to issues with the communication connector or the…