| 摘要 |
A printing method and a printing apparatus including a stencil printing apparatus and so on. Focusing on the relationship that exists between copy number and master position displacement that occurs during printing, by determining by pretest and setting top-bottom shift correction values in accordance with parameters including copy number that affect printed master position displacement in the direction of rotation of a plate cylinder, and during printing, utilizing conventionally used top-bottom shift means to automatically execute top-bottom shift correction in accordance with the set top-bottom shift correction values, printing position displacement can be prevented from occurring, waste of master and printing medium such as paper can be eliminated and, in addition, the operation time can be shortened and the number of operation steps can be reduced. The CPU of control means, each time the copy number counted by a paper discharge sensor reaches a predetermined copy number, reads a top-bottom shift correction value corresponding to a predetermined copy number from a ROM, and during printing, controls a top-bottom shift motor of top-bottom shift means to execute a top-bottom shift correction in accordance with the read top-bottom shift correction value.
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