| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithographic printing method with an improved efficiency in a platemaking process, an image forming method employed therefor and an image exposing device employed therefor and further a lithographic printing method, in which plate wearability is excellent and, at the same time, the efficiency in the platemaking process is improved, an image forming method employed therefor and an image exposing device employed therefor. <P>SOLUTION: In the lithographic printing method, in which image formation is performed through the imagewise heating of a lithographic printing plate material having a structural layer including an on-press developable thermosensitive image forming layer on a base material with a hydrophilic front surface so as to perform printing by employing the imagewise heated lithographic printing plate material, the conditions of the imagewise heating is ones set based on the data between (1) the printing number of sheets of the printing and (2) the relationships among the printing conditions of the printing, the number of plate-wearable sheets and heating conditions. <P>COPYRIGHT: (C)2007,JPO&INPIT |
