微型针式打印机的源代码和PCB图纸，可以方便的潜入到已有的产品中，比如POS机、一卡通出租车计价器等。

DTR/DSR handshaking is used because this is what the POS printer requires. Comms with a pc can then be accomplished using the same cable as used for the printer. Ensure that the pc program is written to use the same handshaking.

Code snippet for using Printer (Thermal) on XGD POS Terminal