Each serial device is controlled by a series of communication characteristics that define the low-level communications with the printer. When you configure a new printer, the default values should be sufficient for most purposes.
The serial communication parameters are:
Flow control is used between the computer and the device to start and stop the flow of data when necessary (as when the device input buffer is full).
To change these parameters, see ``Changing printer names and connections''.
You can configure additional serial line characteristics using lpadmin(ADM) or by editing the print interface file (in the /usr/spool/lp/model directory) directly. See ``Creating printer interface scripts''.
The stty(C) manual page summarizes the various characteristics that can be set on a terminal or printer port; however, not all of the characteristics listed in stty(C) are important for printers.