What is my cash drawer opening code?
POS software programs must generate a series of ASCII characters to open the cash drawer. Different cash drawer configurations require different opening codes. a) Printer-driven The cash drawer opening sequence is printer specific. Refer to your printer manufacturer’s documentation for opening sequence. Some test examples are shown below: Sample Opening Code for ESC/POSĀ® compliant printer in Visual Basic The first step in enabling RS-232 serial communication in Visual Basic is to install the Microsoft COM ActiveX control into the Components Toolbar then add MSCOMM to the form. Sample code: MSComm1.CommPort = 1 ‘ Define COM1 as port to be opened MSComm1.PortOpen = True ‘ Open the serial port MSComm1.Settings = “9600,n, 8,1” ‘ Define the communication parameters per printer specifications MSComm1.Output = CHR$(27) & CHR$(112) & CHR$(48) & CHR$(40) & CHR$(40) Sample Opening Code for Star Micronics printer in Visual Basic Printer I/F – Transmits cash drawer opening sequence to Star Microni