LIQUID CRYSTAL COPYING AND PRINTING DEVICE,申请号JP19840051667-传众专利搜索

LIQUID CRYSTAL COPYING AND PRINTING DEVICE

申请公布号：JPS60195517(A)

申请号：JP19840051667

申请日期：1984.03.16

申请公布日期：1985.10.04

申请人：

SANYO DENKI KK

发明人：KUMADA EIJI

分类号：G03B27/32;B41J2/445;G02F1/13;G03G15/04

主分类号：G03B27/32

摘要：<p>PURPOSE:To use an inexpensive diazo type copying form without being limited by a transparency, a thickness, etc. of a copying object by providing a liquid crystal element whose optical property is controlled in accordance with picture information of the copying object converted to two bright and dark levels, and a light source for exposing a photosensitive copying medium through said liquid crystal element. CONSTITUTION:An original paper Po moves in the direction of a fetching port 72 on a glass plate 6 in a cover 7 by a rotation of rollers R, R..., stops when it reaches a prescribed position, and a copy head 1 is in an initial position where a position of its projecting plate 10a is made to coincide with a position of the tip of the original paper Po. The light from a light source 12 is projected successively, reaches the original paper Po through the glass plate 6, and its reflected light is made incident on a photocell 13 through a photodetecting plate 10b, binary-coded and stored in a memory of a control device 2. The original paper Po is discharged from an inserting port 71 by the rollers R, R..., and subsequently, in order to execute an actual copying, a copying form Pc being a photosensitive copying medium, for instance, of a diazo type, etc. is inserted from the inserting port 71. Thereafter, an exposure is executed, and a processing is executed extending over the whole area of the length direction of the copying form Pc.</p>