Epson WF-2660-2661-2665 Error 0x4 B The Epson WF-2660, WF-2661, and WF-2665 are advanced printers that enhance productivity and efficiency. However, sometimes users may encounter error code 0x4 B on the scanner display, indicating a scanner/ADF FB BS+ lock error. This error usually occurs due to various technical issues. One possible cause is an encoder failure,…