Sending tray code to hp

[John Sica]

I need to send a tray selection code to an HP printer for specific users 
(determined by login account).  The printer name is already set in a 
variable that filepro gets (GETENV) for PCs in this department, 
determined by IP address. 

The login needs to be able to change this printer destination again so 
that all jobs send the tray 2 code (which is not the default tray) 
before the jobs print.  

Every print job sends an overlay to the printer, then prints the job.  
Each job is 3 pages, and the overlay gets resent after each  page.  I 
know sending the overlay every page is extra work, but everything prints 
fast anyway.

My thought is to create a new printer who's interface program embeds the 
tray 2 code (^[&l1H) , then have this new printer set in the environment 
at login.

I don't know how to embed this code in the interface script, which now 
all use netcat in the interface script (sco unix 5.05).

My other thought is to use the new filepro printer name  (which is the 
same name as the unix printer name), to have the tray 3 code initialize 
it.  I'm not sure how to do this either.

A suggestion either way would be appreciated.

Thanks,

John