Printing to different trays.

I am not aware of ANY way to do what you think you want to do.  A print job is sent to the Printer as a SINGLE BATCH job, to be executed by the printer.  And as it is a SINGLE entity when it gets to the printer, all pages in that entity will be treated the same.  Anything else would be a very special case of the way the Print spooler behaves for that specific printer, and I doubt that there is any way to alter that behavior in your code.

How are you printing?  Are you using the Printer object?

We send various single print jobs to different trays all the time while printing forms (letterhead, colored seperator, and of course white).

We do this by sending raw PCL commands to the printer, so I know that if you are using a PCL/PostScript printer - you should be able to have the same functionality.  But, we are using a program to convert an older XES language to PCL - so I do not know the exact PCL command or script.

What I would suggest is to use the following code/API to send raw characters to the printer:
http://www.planet-source-code.com/xq/ASP/txtCodeId.12410/lngWId.1/qx/vb/scripts/ShowCode.htm

*You will just have to determine the proper PCL commands.

btw - is the printer programmable?  Such as determining tray1=Letterhead, tray2=color ?

Hope this helps!~

It is through the word object model...

No ... the code above sends raw text thru to your desired queue (whether local or located on the LAN).

As for the printer being programmable, their are some larger models such as Lexmark and Xerox that allow programming of the trays.  So whenever it recieves an tray command, it will pull from the desired tray.