We do have an Android SDK that does support USB connections using an “On The Go” cable. It should work with the GC420. Some of the advanced API’s will not work as this is not a Link-OS printer, but the basic communications API’s will.
I also trying integrate GC420T to android using OTG USB.. But as you told there is no especific api for this printer.. I think that it would not work.. But now as i see your message, and see that you work at zebra, will try again..
Wich android SDK you talk ? Could you let me know version or link to download? I just want basic print with QR code.. Do you have any tips that could help conect it to android device? I am developing event ticket print solution for android..
Thank you so much!
I have same problem that you had.. I want print over android using USB OTG with GC420T..
I also can't afford pricier printer with bluetooth or wifi, especially because i am from brazil and printers here cost almost 4x more than in USA because High fees..
Did you was able to solve your problem? Was able to print using GC420T using android app?