Canon EOS 70D(W) Instruction Manual page 162

Responding to Error Messages
125: Check the network settings
Is the network connected?
Check the connection status of the network.
126: Could not connect to server
CANON iMAGE GATEWAY is under maintenance or load is
concentrated temporarily.
Try connecting to the Web service again later.
127: An error has occurred
A problem other than error 121 to 126 occurred during the
connection to the Web service.
Try connecting to the Web service again.
141: Printer is busy. Try connecting again.
Is the printer performing a printing process?
Connect to the printer again after the printing process is finished.
Is another camera connected to the printer?
Connect to the printer again after the connection between the
printer and the other camera has been terminated.
162