| 摘要 |
<p>PURPOSE:To improve a workability and stabilize a printing state regardless of a thick variation of a glass substrate serving as a printing member by a method wherein a drive means is actuated based on a recognition signal from a sensor to ensure a constant contact state of a printing part with a drum at the time of printing. CONSTITUTION:After a length measuring machine (sensor) 17 measures a height of a part of a glass substrate 9 opposed to the length measuring machine 17, a difference between the measured value and a height of a rotating shaft 10a of a drum 10 is compared with a reference difference. A drive amount Z of a Z drive part 7 required for setting the difference equal to the reference difference is previously calculated and stored. Next, when an X travel body 5 is traveled from the measurement position in a direction shown by an arrow (a) by a distance X, a controller 20 issues an instruction to the Z drive part to vertically actuate the Z drive part 7 by a distance Z to keep the glass substrate 9 at a predetermined height.</p> |
