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(dvips.info)Paper trays

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Paper trays
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  Some printers, such as the Hewlett-Packard HP4si, have multiple paper
trays.  You can set up Dvips to take advantage of this using the
`bop-hook' PostScript variable (Note: PostScript hooks.).

  For example, suppose you have an alternate tray stocked with
letterhead paper; the usual tray has the usual paper.  You have a
document where you want the first page printed on letterhead, and the
remaining pages on the usual paper. You can create a header file, say
`firstletterhead.PS', with the following (PostScript) code (`bop-hook'
is passed the current physical page number, which starts at zero):

     /bop-hook { dup 0 eq { ALTERNATETRAY } { NORMALTRAY } ifelse } def

where ALTERNATETRAY and NORMALTRAY are the appropriate commands to
select the paper trays.  On the 4SI, ALTERNATETRAY is `statusdict begin
1 setpapertray end' and NORMALTRAY is `statusdict begin 0 setpapertray
end'.

  Then, include the file with either
   * the `-h' command-line option (Note: Option details.); or

   * the `h' config file option (Note: Configuration file commands.);
     or

   * `\special{header=FILE}' in your TeX document (Note: Including
     headers from TeX.).