Firmware Updating 
SM 5-7 M018/M019 
System 
Maintenance 
Reference 
 
Message  Cause/ Solutions 
The USB cable is not connected. 
  Make sure the USB connection between the machine 
and computer is secure. 
  If this message persists, try another USB cable. 
The USB printer driver is not installed in your computer. 
  Install the USB printer driver in your computer. 
The machine is turned off or an error has occurred. 
Fail to open USB port. 
  Turn off the power, turn it back on, and then perform 
the update again.   
  If this message reappears after you turn the power 
back on, see "Error and Status Messages on the 
Screen" in the User Guide. 
The IP address specified for either the machine or your 
computer is invalid. 
  Check that both IP addresses are valid. 
The [F/W Update (USB)] or [F/W Update (NET)] button 
was clicked when the update was already in progress. 
 Clicking the [F/W Update (USB)] or [F/W Update 
(NET)] button during the update process does not 
interfere with any ongoing update. 
  Ignore this error message and complete the update 
using the procedure shown in this manual. 
Net Connection : FAIL(X)*1 
The machine is turned off or an error has occurred. 
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