Mita Industrial Co., Ltd.

Kenzo Okubo

Kazuya Akura

Masanori Itakiyo

An exposure-scanning device comprising a guide member horizontally arranged, a scanning member slidably mounted to the guide member for performing an exposure-scanning operation upper and lower rollers rotatably mounted to the scanning member, both rollers vertically sandwiching the guide member, and an urging means provided at the scanning member for upwardly urging the lower roller to be constantly in contact with the guide member.

Exposure-scanning device

In a magnification adjusting mechanism, preparatory movement position calculating means utilizes a current position where an optical system is positioned at present, and a target position for the optical system which corresponds to an aimed magnification inputted by a magnification inputting means, to calculate a preparatory movement position between the current position and said target position, and optical system drive control means controls optical system driving means in such a manner that, when a magnification is inputted by the magnification inputting means, the optical system is moved to a preparatory movement position calculated by the preparatory movement position calculating means, and that, when a final magnification is determined, the optical system is moved to the target position, whereby even when a magnification is set again because it is unacceptable, the optical system is quickly moved to the destination.

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Osaka, Japan

Kenzo Okubo