One of the causes of the Lexmark Printer Offline issue, which prevents the printer from printing, is that the printer's settings are offline. Therefore, you must change from an online setting to an offline one. Double-check the USB connection to make sure it is operating properly. The printer might not work if there is a wiring problem. If your drivers aren't updated frequently, your printer won't work correctly. Therefore, you need to update your driver frequently. If an offline error is displayed by the printer, check for hardware problems.