1, single-sided type: refers to the need to print a surface of printed matter, such as posters, etc., only need to print the front, and the back is not printed.

2, double-sided type: commonly known as the bottom version, refers to the positive and negative sides need to print the printed matter, such as some small flyers, small posters, cards and so on.

3, cross-style: commonly known as self-reflection, on the version of flip, suitable for magazines, books and other printed matter, such as a 16-page magazine cover, divided into a seal, seal two, seal, seal four four layout Need to be printed. When the imposition is made, the seals are sealed together with seals four, seals two, and seals. Then seals one and four, seal two, and seal are head-to-head and printed on a four-up layout. After the printing of one side is completed, the paper is turned sideways by 180 degrees, and the printing is continued on the reverse side. After the printing is completed, the printed matter is cut in the middle and two identical prints can be obtained.

4. Flip type: After printing on one side of the paper with the same printing plate, the paper is reversed and the back side is printed, but the other long side of the paper is used as the bite edge. This method is commonly referred to as a tipping bucket and is rarely used nowadays.