Rotary cut paper is usually referred to as "machine trimmed" paper and the cut is sufficient for the requirements of most booklets, pamphlets, etc., that are to be printed "work and turn" and folded as a full sheet. See: IMPOSITION . For printing that is done on a full sheet and then slit, however, "machine trimmed" paper will not always suffice. Broadsides, folders, labels and similar forms of printing that must be accurately trimmed require guillotine trimmed paper. Uncoated paper intended for such printing is usually ordered guillotine trimmed on at least two edges. Coated papers are guillotine trimmed as a regular practice. 2. The formation of a sheet on the papermaking machine. (17 , 198 , 350 )