LaserDriver Version 3.3ms
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  Overview
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  This version of LaserDriver provides the ability to change emulation modes
  from command line (i.e. without entering the menu structure).  All 4 of
  the IBM 4019 LaserPrinter's emulation modes are supported: PPDS, HP,
  Plotter, and PostScript.



  Syntax
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  This version of the program may be executed in the following manner:

      "lazrdrvr modeswitch <emulation>"

  where <emulation> is one of the following:

      o  "PPDS" or "IBM"        for PPDS emulation
      o  "HP"   or "PCL"        for HP emulation
      o  "GL"   or "plotter"    for Plotter emulation
      o  "PS"   or "PostScript" for PostScript emulation

  Example:  "lazrdrvr modeswitch plotter"

  Any emulation name that's not recognized will cause the program to quit
  without sending any commands.  As long as the word "modeswitch" is used,
  the program will not enter full-screen mode.

  Running the program without arguments (i.e. "lazrdrvr") will invoke the
  normal, full-screen version of the program.

  NOTE: No function has been removed for this version, it's identical to
  Version 3.2 except for this additional mode switching capability.



  Details
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  This version of the program uses the same information as the normal
  LaserDriver, as far as the printer port (LPT1, COM1, a file name, etc.)
  is concerned.  So, if you've been using LaserDriver to send commands
  to LPT1, that's where the output from this version will go when it's
  invoked in its command-line-only manner.

  This version uses the same method for mode switching as does the "normal"
  LaserDriver.  When used correctly, this can avoid any wear and tear on
  NVRAM that can otherwise result from frequent switching to and from
  PostScript mode.  In order to allow LaserDriver to switch modes
  effectively, follow the following guidelines:

      1. Use LaserDriver to specify your LaserPrinter's default emulation
         mode as something other than PostScript.

         This lets LaserDriver know which mode is your printer's default,
         and allows mode switching in such a manner as to preserve your
         NVRAM.

         Select "Set Power-On Defaults" from the main menu, then "Specify
         Defaults Common to All Modes" in order to specify the default
         emulation mode.  This only needs to be done once.


      2. As much as possible, use LaserDriver to perform you remote mode
         switches.

         Every time LaserDriver switches your printer's mode, it "remembers"
         what mode it switched to, and will use that information the next
         time it runs, in either the full-screen or command-line mode.


  If you do not own the PostScript Option for the IBM LaserPrinter, these
  guidelines do not apply, but the program may still be used to switch
  emulation modes.
      

        YOU CAN PRINT A LIST OF ALL COMMANDS USED BY THE LASER DRIVER UTILITY BY FIRST LOADING THE PROGRAM "LAZRDRVR". AFTER MAIN MENU APPEARS HIT F-10 TO PRINT THE DOCS..