Ok, then the steps would be:
1.CONNECT THE PRINTER TO THE PC CONTAINING THE PROGRAM ASSISTANT USB PORT, THE ONLY MUST BE CONNECTED BY PORT USB PRINTER.
2.MUST BE SET TO DEFAULT PRINTER AND BE THE ONLY OF THIS MODEL UNDER CONTROL PANEL PRINTERS
3.RUNNING THE PROGRAM usbprns2.exe
4.EJECUTE OR DRAG THE ARCHIVE 1670_V1.01.00.07NU.hd OR 1670_V1.01.00.07U.hd INTO USBPRNS2.EXE
RESET PROCEDURE MUST BE WITH ORIGINAL CARTRIDGE CHIP INSIDE YOUR PRINTER, NO CHIP TO BE COVERED WITH DUCT TAPE WHEN RESET
Is correct?