Some possible solutions:
Disconnect and reconnect the USB cable to ensure a secure connection
Press the POWER button to power on the printer
Select the correct port setting (Windows)
Set printer from Offline to Online
Set the default printer (Windows)
Try a different data cable
I have bolded the most likely problems. You did not specify your Operating System so it would be lengthy to describe how to check all of these. For detailed assistance , go to this
webpage. In the
Please Enter Your Question box, type ' Error: Off-line"; from the
menu that opens you can access illustrated instructions for each of the above if necessary.
Trust this helps resolve your problem. Please vote.
.