The Epson printer offline error occurs because of settings related issues or corrupted drivers. Whatever is that the rationale, you'll need to address it immediately to continue printing? If Epson printer says offline error frequently, meaning the network connection is causing trouble making your printer go offline. Try connecting another printer on the same network; if a uniform problem occurs, contact the online service provider to repair it. Additionally, please check whether Epson is chosen as a default printing device and ensure to clear the print queue to urge obviate the jammed printing documents. Hopefully, the offline Epson problem resolves.