Printooth from TC20 android doesn't print when thermal printer is in TPCL mode

I developed an APP to run on Zebra TC20 with Android, I am using Printtoth library to print in one thermal printer. My APP is printing nomally when the printer is in ESC/POS mode, but if I change the printer's configuration to TPCL for Label feed control, than the it looks like the printer receive the command but doesn't print. I anyone knows how to control the printer's behaviour by software please share.

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