Print system and registration control method at print start time of the print system

摘要

A print system having a first printer and a second printer being placed at the stage following the first printer, the first printer having a mark formation section for forming a register mark at a predetermined location of a web and the second printer having mark detector for detecting the register mark and a buffer plate being placed so that it can be advanced to and retreated from a web transport passage for giving a constant tension to the web comprises a controller for setting the buffer plate to a predetermined position during the period until the register mark is transported at a constant distance after passing through the mark detector.