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    • 1. 发明授权
    • Paper-supplying device
    • 送纸装置
    • US5332208A
    • 1994-07-26
    • US137977
    • 1993-10-19
    • Hiroyuki TsujiShigeo KurandYoshihiro TohnaiYukio HashimotoHidekazu Sakagami
    • Hiroyuki TsujiShigeo KurandYoshihiro TohnaiYukio HashimotoHidekazu Sakagami
    • B65H1/00
    • B65H1/00B65H2511/10
    • A paper supplying deck is insertable into and withdrawable from a paper supplying portion of a body resulting in electrical connection between the side of the paper supplying deck and the side of the body through a drawer-type connector when the paper supplying deck is inserted and interruption of such electrical connection when the drawer is withdrawn. The paper supplying deck has a paper carrying portion with a paper width setting mechanism and a variable resistor the resistance value of which is changed in dependence on the paper width setting mechanism, thereby changing an output paper width detecting voltage. On the wide of the paper supplying deck, a resistance which prevents the paper width detecting voltage from amounting to a power source voltage even though the resistance value of the variable resistor reaches a maximum value, is connected in series with the variable resistor. On the side of the body, a pull up resistance is connected with the connector to discriminate between voltages in the connector when the paper supplying deck is mounted and when the paper supplying deck is not mounted.
    • 供纸台可插入和取出主体的供纸部分,当供纸台插入并中断时,通过抽屉式连接器在供纸台的一侧和主体的侧面之间电连接 当抽屉被抽出时,具有这种电连接。 供纸台具有带纸宽度设定机构的纸张承载部分和可变电阻器,其电阻值根据纸张宽度设定机构而改变,从而改变输出纸张宽度检测电压。 在供纸盘的宽度上,即使可变电阻器的电阻值达到最大值,阻止纸张宽度检测电压达到电源电压的电阻与可变电阻器串联连接。 在本体的一侧,当连接器供纸台安装时以及没有安装供纸台时,上拉电阻与连接器连接以区分连接器中的电压。
    • 10. 发明授权
    • Optical scanning apparatus
    • 光学扫描装置
    • US5982524A
    • 1999-11-09
    • US924699
    • 1997-09-05
    • Osamu FujimotoHideo MatsudaYoichi ShimazawaKazuyuki OhnishiHidekazu Sakagami
    • Osamu FujimotoHideo MatsudaYoichi ShimazawaKazuyuki OhnishiHidekazu Sakagami
    • G02B26/10G02B26/12H04N1/113G02B26/08G02B5/10
    • G02B26/126
    • The present invention is intended to reduce a f.theta. correction error by correcting an error of an object scanning speed which is produced because a reflecting point of a laser beam moves on a polygon mirror. In an inventive laser scanner, laser light emitted from a laser oscillator is condensed into a beam by a condenser lens at first. This laser beam is reflected by a polygon mirror rotated by a scanning section and is reflected again to a photoreceptor by a curved reflecting mirror. A curved profile of a reflecting plane of the curved reflecting mirror in the main scanning direction is formed so as to be asymmetrical on right and left bounding about a scanning center point. Thereby, variation of speed for scanning the curved reflecting mirror by the light reflected by the polygon mirror may be canceled by the curved reflecting mirror and a speed for scanning the object may be fixed almost at a predetermined speed.
    • 本发明旨在通过校正由于激光束的反射点在多面镜上移动而产生的物体扫描速度的误差来减小fθ校正误差。 在本发明的激光扫描仪中,首先从聚光透镜将从激光振荡器发射的激光聚光成束。 该激光束由被扫描部旋转的多面体镜反射,并被弯曲的反射镜再次反射到感光体。 在主扫描方向上的弯曲反射镜的反射面的弯曲轮廓形成为围绕扫描中心点的左右边界不对称。 由此,由多面镜反射的光来扫描弯曲反射镜的速度变化可能被弯曲的反射镜消除,并且用于扫描物体的速度可以几乎以预定速度固定。