What is gripper?
All of our presses are “sheet fed presses”. This means that individual sheets of paper are fed through the press, and therefore it is necessary to “grip” the paper. Using pre-made envelopes and letterhead to size (8.5″ x 11″) can reduce the cost of printing due to lack of cutting and conversion processes after printing. However, in order for the press to grip the stock used, it is necessary to allow a 5/16″ gripper margin in your design. Generally, a letterhead will be gripped from the top and standard business envelopes from the left or return address side.