diff options
Diffstat (limited to 'DOCS/vt102-ug/chapter2.html')
| -rw-r--r-- | DOCS/vt102-ug/chapter2.html | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/DOCS/vt102-ug/chapter2.html b/DOCS/vt102-ug/chapter2.html new file mode 100644 index 0000000..5537987 --- /dev/null +++ b/DOCS/vt102-ug/chapter2.html @@ -0,0 +1,132 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<HTML> +<HEAD> +<TITLE>VT100.net: Digital VT102 User Guide</TITLE> +<LINK HREF="vt102-ug.css" TYPE="text/css" REL="stylesheet"> +</HEAD> +<BODY> +<DIV CLASS="navbar"><A HREF="http://vt100.net/"><IMG CLASS="button" SRC="vt100.net-logo.png" ALT="VT100.net" HEIGHT="16" WIDTH="102"></A> VT102 User Guide<TABLE WIDTH="100%"> +<COL SPAN="3" WIDTH="33%"> +<TBODY> +<TR> +<TD ALIGN="LEFT"><A HREF="chapter1.html">Chapter 1</A></TD> +<TD ALIGN="CENTER"><A HREF="contents.html">Contents</A></TD> +<TD ALIGN="RIGHT"><A HREF="chapter3.html">Chapter 3</A></TD> +</TR> +</TBODY> +</TABLE> +<HR></DIV> +<H1 ID="S2"><SPAN CLASS="chapnum">2</SPAN> Printing</H1> +<H2 ID="S2.1">General</H2> +<P>The VT102 has a built-in serial printer interface that connects to an optional +serial printer. The terminal performs several print operations selected +from the keyboard and computer. This chapter describes the print +operations and how to select them from the keyboard. <A HREF="chapter5.html">Chapter 5</A> describes +how the computer selects print operations.</P> +<H2 ID="S2.2">Print Operations</H2> +<P>The optional serial printer connects to the terminal printer interface (<A HREF="figure2-1.html">Figure +2-1</A>). The terminal uses the printer interface signals to determine if a +printer is connected and ready to print. If a printer is not connected, the +terminal ignores requests for printing. If a printer is connected but unable +to print, print requests cause the terminal to wait for the print operation to +end. While the terminal is waiting, it cannot display new characters on the +screen. After the print operation ends, the terminal can display new characters.</P> +<P CLASS="note">NOTE: You can cancel print operations by entering and exiting SET-UP. +If you stop printing by entering and exiting SET-UP, you must move the +printhead to the left margin.</P> +<P>Printing uses four print operations: auto print (line at a time), print screen, +printer controller, and print cursor line. The computer can select all print +operations while the terminal is on-line. You can only select the auto print +and print screen operations from the keyboard; however, you can select +them while the terminal is on- or off-line. If the terminal is off-line, KBD +LOCKED comes on until printing ends.</P> +<P>A line of double-height, double-width characters prints as the same line +twice, using single-height, single-width characters. Double-width characters +print as single-width characters.</P> +<H3 ID="S2.2.1">Auto Print (Line at a Time)</H3> +<P>Auto print operation prints the current display line before the cursor +moves to the next line. The cursor moves when the terminal receives a +linefeed, form feed, or vertical tab character. (The terminal also transmits +this character to the printer at the end of the printed line).</P> +<P>If the auto wrap SET-UP feature is on, characters received when the cursor +is at the right margin automatically wrap to the next line. Before the +cursor moves to the next line, the current line prints. The auto wrapped +line ends with the carriage return and linefeed characters. Select auto +print by using the following procedure.</P> +<TABLE CLASS="proctable" FRAME="VOID" RULES="GROUPS" CELLSPACING="0" BORDERCOLOR="#ffffff"> +<COL SPAN="2" WIDTH="50%"> +<THEAD> +<TR VALIGN="BOTTOM"> +<TH>Procedure</TH> +<TH>Indication/Comments</TH> +</TR> +</THEAD> +<TBODY> +<TR VALIGN="TOP"> +<TD>Hold down <SPAN CLASS="keyname">CTRL</SPAN> and press <SPAN CLASS="keyname">(PRINT)</SPAN> to turn on auto print.</TD> +<TD><P>No visual indication provided. However, current line prints before cursor moves to next +line. When selected, auto print operation continues until turned of.</P> +<P>To stop printing, enter and exit SET-UP. Current line does not print, but auto print stays on.</P></TD> +</TR> +</TBODY> +</TABLE> +<P>Turn off auto print by using the following procedure.</P> +<TABLE CLASS="proctable" FRAME="VOID" RULES="GROUPS" CELLSPACING="0" BORDERCOLOR="#ffffff"> +<COL SPAN="2" WIDTH="50%"> +<THEAD> +<TR VALIGN="BOTTOM"> +<TH>Procedure</TH> +<TH>Indication/Comments</TH> +</TR> +</THEAD> +<TBODY> +<TR VALIGN="TOP"> +<TD>Hold down <SPAN CLASS="keyname">CTRL</SPAN> and press <SPAN CLASS="keyname">(PRINT)</SPAN> to turn off auto print.</TD> +<TD>No visual indication provided.</TD> +</TR> +</TBODY> +</TABLE> +<H3 ID="S2.2.2">Print Screen</H3> +<P>Print screen prints a copy of the screen. The print extent SET-UP feature +selects the scrolling region or complete screen to print. The scrolling region +is the area of the screen between the top and bottom margins. The +computer selects the top and bottom margins. Select print screen by using +the following procedure.</P> +<TABLE CLASS="proctable" FRAME="VOID" RULES="GROUPS" CELLSPACING="0" BORDERCOLOR="#ffffff"> +<COL SPAN="2" WIDTH="50%"> +<THEAD> +<TR VALIGN="BOTTOM"> +<TH>Procedure</TH> +<TH>Indication/Comments</TH> +</TR> +</THEAD> +<TBODY> +<TR VALIGN="TOP"> +<TD>Hold down <SPAN CLASS="keyname">SHIFT</SPAN> and press <SPAN CLASS="keyname">(PRINT)</SPAN> to select print screen.</TD> +<TD>The printer prints characters displayed on screen.</TD> +</TR> +</TBODY> +</TABLE> +<H3 ID="S2.2.3">Printer Controller</H3> +<P>Printer controller gives the computer direct control of the printer. Characters +received from the computer do not appear on the screen; they go +directly to the printer.</P> +<P CLASS="note">NOTE: If you select print screen from the keyboard while printer controller +is selected, the screen display prints immediately.</P> +<H3 ID="S2.2.4">Print Cursor Line</H3> +<P>Print cursor line prints the current display line. The cursor position on the +screen does not change.</P> +<DIV CLASS="navbar"><HR> +<TABLE WIDTH="100%"> +<COL SPAN="3" WIDTH="33%"> +<TBODY> +<TR> +<TD ALIGN="LEFT"><A HREF="chapter1.html">Chapter 1</A></TD> +<TD ALIGN="CENTER"><A HREF="contents.html">Contents</A></TD> +<TD ALIGN="RIGHT"><A HREF="chapter3.html">Chapter 3</A></TD> +</TR> +</TBODY> +</TABLE> +<DIV CLASS="navbot">http://vt100.net/docs/vt102-ug/chapter2.html</DIV></DIV> +</BODY> +</HTML> |