I was able to figure out how to change the paper size in the report builder, however, when I print from Epicor the paper size is not correct.
I went into the printer server properties, added the paper size, however in the print menu in Epicor i dont see the size I added.
This issue might be related to my next question. There is a paper size called Custom 1, where you can adjust the size, which I do but the margins on the report change from 0.1 inch to 4 inches.
The printer is an impact printer, for printing checks.
The check size is 7 inches tall by 8.5 wide.