专利名称：Automatic exposure device for copying machine
发明人：Kurando, Shigeo红豆汤圆
申请号：EP87301991.3叉叉符号
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不知老之将至云尔申请日：19870309
公开号：EP0239277B1
公开日：
花灯的制作方法
道德经的作者
19910227
专利内容由知识产权出版社提供
组名创意摘要：A copying machine with an automatic exposure device in which the density of an original is detected by irradiating an original by light from a lamp (4a) and detecting reflecting light with an optical nsor (6a), and in accordance with the detected signal the exposure amount of the lamp is adjusted by means of an automatic voltage adjusting circuit, is equipped with a heater control unit for controlling the energization of a fixing heater (20b) for fixing a toner nsible image which has been transferred onto paper. A processing circuit for controlling the automatic voltage controlling circuit and heater control ction, acts to maintain the energizing state of the fixing heater (20b) in a single state, while the operation of detecting the original's density is run with the lamp operating. In this way, fluctuation in the voltage to the lamp due to switching of the fixing heater is prevented from occurring at the time of detecting the density, and the intensity of light from the lamp is kept constant.
申请人：MITA INDUSTRIAL CO. LTD.
地址：2-28, 1-CHOME, TAMATSUKURI HIGASHI-KU; OSAKA 540
民办和公办的区别代理机构：Paget, Hugh Charles Edward
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