Qian DAYIN 80 Manual De Usuario página 15

If the print test page works well, that mean all setting is ok.
Remarks: If " Printer Error " , we should back to " Ports" and
try the USB ports one by one until it is ok.
5.2.2 Ethernet Connection (If your desired port is Ethernet)
1: Get the IP address from a Self Printing Test Paper
Switch off the printer then press "FEED" button and do not
release. Press the "POWER" button at the same time till
the " ERROR" indicators on, release the button about 1
second after the "ERROR" indicators off.
Then we can read the current setting from the self printing
page. ( Default IP Address is : 192.168.1.100 ) Open " Pro-
perties" then click " Ports " ,as below images shown:
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