COLOR IMAGE FORMING DEVICE
专利名称：COLOR IMAGE FORMING DEVICE
发明人：KATAMOTO KOJI，片本 浩司,FUJIMOTO
OSAMU，藤本 修,ODA AYUMI，小田
歩,YOSHIURA SHOICHIRO，吉浦 昭一
郎,SHIMAZAWA YOICHI，嶋澤 耀一
申请号：JP特願平9-221821
申请日：19970818
公开号：JP特開平11-65212A
苹果13拍照有马赛克
公开日：
19990305
专利内容由知识产权出版社提供
专利附图：
摘要：PROBLEM TO BE SOLVED: To enable instantaneous switching from a black-and-
white mode to a color made by attaining switching to a process speed lower than that at the formation of a black-and-white image, when forming a color image and obtaining a second scanning mode, as a scanning mode. SOLUTION: A black-and-white copying speed is set to be faster than a color copying speed. Therefore, a distributed driving clock is common to respective yellow, magenta and cyan laser beam scanner units 37Y, 37M and 37C and a driving clock whose speed is higher than that of the other is supplied only to a black laser beam scanner unit 37Bk. In this unit 37Bk, first and second scanning modes are set; the first scanning mode for a black-and-white copy, is provided with a high copying speed for which scanning is attained by using all the mirror surfaces of a polygon 102Bk and the second scanning mode for a color copy, is provided with a low copying speed for which part of the mirror surfaces of the polygon 102Bk are not used, that is, the mirror surface are thinned out and used.
申请人：SHARP CORP,シャープ株式会社
地址：大阪府大阪市阿倍野区長池町22番22号
国籍：JP
代理人：原 謙三
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