Automatically Print to 3 Print Trays

We have an HP Laserjet 4650 printer, with 3 print trays. Tray 4 is the default tray, and contains WHITE paper. Tray 3 contains PINK paper, and tray 2 contains BLUE paper. We have a invoicing system that creates PDF invoices and other documents. However we need to print three copies of these invoices - 1 in white, 1 in pink, and 1 in blue. This means we have to click 'file' then 'print' three different times. We've set up the different trays as three different printers to reduce time, however it still takes a lot of time. We'd like an application designed, where we can select the PDF invoice, click print and it AUTOMATICALLY prints to all trays. This could be done within acrobat, when the invoice is opened. Alternatively, if this can be written in VBScript it could be done within an asp page. Please email us with your prices.