t or response that the machine is sending. It can have one of the following
values: 
<TABLE BORDER="1" CELLSPACING="0" WIDTH="66%">
	<TR>
		<TH WIDTH="22%" BGCOLOR="#DDDDDD">Value</TH>
		<TH WIDTH="259" BGCOLOR="#DDDDDD">Description</TH>
		<TH BGCOLOR="#DDDDDD">Data Included</TH>
	</TR>
	<TR>
		<TD WIDTH="22%">06h</TD>
		<TD WIDTH="259">Variable Header (VAR)</TD>
		<TD>A standard or padded <A HREF="#varheader">variable header</A></TD>
	</TR>
	<TR>
		<TD WIDTH="22%">09h</TD>
		<TD WIDTH="259">Clear to send (