Each printer typically will be accompanied by a specification manual from the manufacturer. In the printer manual, there should be a note regarding paper weight handling.
Many times, a printer guide will suggest that the printer can handle up to 110# Index which is not the same as 100# Cover Stock. The unit of measurement Index weight is a much lighter sheet than Cover Stock weight. Therefore 80# or 100# Cover Stock is still a heavier sheet than 110# Index.
Be cautious when testing your papers. Most 80# Cover Stocks will work flawlessly. However, you will need to use care when printing on conventional home printers when considering a heavier weight card stock.
