To get landscape mode (rather than portrait mode) output, use the -l flag. The entire document is rotated to print on the 11 by 8.5 paper.
The -m flag applies a global magnification to the output. If you have slides that are to be reduced, you can fiddle with the output size using -m. (By the way, -r is really -m in disguise.)
Normally, iptex will print information about the document and the pages being printed. This information can be suppressed using the +v option to display Verboseness.
By default, pages are printed from last to first, leaving the output in the proper order on most Imagen printers. You can change this by specifying -p for Page reversal.
The default margins are one inch on the left and the top. You can set the side margin using -sm to specify a floating point value for margin in inches. Similarly, -tm specifies the margin for the top of the page. To center your document across the width of the paper, specify -cwd and to center it along the paper height, use -cht.
Iptex is actually a shell script that invokes the conversion program and feeds its output to Imagen's ipr command. By default, this is done by creating a file in /tmp, so that missing fonts can be caught before ipr runs away with the output. However, if desired, you can force the output to be piped directly to ipr with the -force flag. This ignores all errors in imagen1 and iptex.
If you get confused, you can use the -help option to get a short list of all the available options.
Chris Torek, University of Maryland, wrote the original version of imagen1 and iptex.
Mike Urban (TRW) added the -p, -X, and -Y options.
Dirk Grunwald, Univ. of Illinois, rewrote imagen1 to provide more help
and greater flexibility in placing the document on the paper.
The current version of imagen1 uses the same DVI driver used in TeXx and
TeXsun.
Tim Morgan (UCI) added support for tpic specials.