Lexmark CX725
StepĀ 1
Check if the USB cable from the RFID Option is plugged into the USB Host Port on the back of the printer.
Is the RFID Option cable plugged into the USB Host Port?
Contact the next level of support.
Go to step 2.
StepĀ 2
Turn off the printer.
Plug the RFID Option cable into the USB Host Port.
Turn on the printer.
Does the problem remain?
The problem is solved.
Lexmark CX/CS72x and XC/Cxxxx: 44.xx Errors on Devices with RFID Option Tray Installed
Lexmark CX/CS72x and XC/C41xx: 912.81 Error Code on a Lexmark Devices with RFID Option Tray Installed