For reconnecting a Lexmark printer if it shows a Lexmark printer offline, you should follow a few steps. Firstly, you should check the Printer's Cable or Network Connection, get Clues from the Printer's Status Light, and disable Printer Offline Mode in Windows, restart your Lexmark Printer, reboot Your Computer, update the Printer Firmware, and finally run the Printer Troubleshooter.Lexmark printer offline