M-S Cash Drawer 7193 - Manual (Page 49)

7193 Owner’s Guide Communication
May 1996
Communication
Communication Overview
In order for a receipt to be printed, a program must be in place that translates the
data from the host system into a language that the printer can understand. This
program must tell the printer exactly how to print each character. This chapter
describes how to create such a program or modify an existing one.
Interfaces
In order for the printer to communicate with the host, a communication link must
be set up. The 7193 supports the following three communication interfaces:
•
RS-232C Interface
•
Parallel Interface
Each of these has a protocol associated with it that the host must understand and
adhere to. Only when the interface parameters are matched and the proper
protocol is used will the host and the printer be able to communicate. See the
respective sections in this chapter for a description of the protocol associated
with each type of interface.
Sending Commands
Once the communication link is established, commands can be sent to the printer.
This section describes how to send commands to the printer using DOS and
BASIC. This section does not take into account the necessary protocol, but is
meant as a general introduction to how the printer functions.