Please follow this guide to sort check and print in reverse order

How to sort checks and print checks in different order
https://www.halfpricesof...software/sort-checks.asp 

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I am using ezCheckPrinting, Windows 10; HP6700 printer.
I'm printing 3 checks to a blank page.

I cannot make the pages collate in reverse order. Otherwise, they are perfect.
I don't find any option in EZCPrinting, to create the proper order.
I tried to change my printer properties to print "back to front", but since EZCPrinting sends each page of checks as an individual file, my printer thinks it is only getting a one page document.

Any ideas to fix this? Maybe "print to file" would create a single document for my printer; and then the printer could print them "back to front"?