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1. 发明申请

US20120257222A1 PRINTER, PAPER, ROLL HOLDER THEROF, AND PAPER END DETECTING MECHANISM 有权
标题翻译：打印机，纸张，滚轮支架和纸端检测机构
公开(公告)号：US20120257222A1
公开(公告)日：2012-10-11
申请号：US13516404
申请日：2010-11-04
申请人： Tianxin Jiang , Zhenxian Cong , Jigang Zhang , Min Yang , Kai Liu
发明人： Tianxin Jiang , Zhenxian Cong , Jigang Zhang , Min Yang , Kai Liu
IPC分类号： G06K15/02
CPC分类号： B41J11/0095 , B41J11/0075 , B41J15/042 , B41J29/02 , B41J29/13 , B41J29/48
摘要： A paper roll holder, a printer having the same and a paper end detecting mechanism are disclosed. The paper roll holder comprises a turning plate, which upper surface forms a first arc groove close to a rotation centre and a second arc groove far away from the rotation centre; an elastic element, providing a rotating torque to the turning plate so that the turning plate turns from an initial position to an upturning position during the printing and consuming of a paper roll; and a sensor, arranged in the second arc groove of the turning plate for detecting the paper. Wherein, the turning plate has the initial position suitable for supporting a large paper roll in the second arc groove and the upturning position suitable for supporting a small paper roll in the first arc groove. When the printing paper roll is near end, along with rotation of the turning plate, the small paper roll is limited in the first arc groove so as to prevent the small paper roll from moving in the paper house during printing. When the residual amount of the printing paper is less than the distance between the sensor and the printing mechanism, the sensor can promptly and accurately send out a paper lack signal, thereby improving the reliability of paper detection by the sensor.
摘要翻译：公开了一种卷纸托架，具有该卷筒托架的打印机和纸张端检测机构。纸卷保持器包括转板，该上表面形成靠近旋转中心的第一弧形槽和远离旋转中心的第二弧形槽; 弹性元件，其向转向板提供旋转扭矩，使得在打印和消耗纸卷期间转向板从初始位置转动到向上翻转位置; 以及传感器，布置在转盘的第二弧形槽中用于检测纸张。其中，转板具有适于在第二弧形槽中支撑大纸卷的初始位置和适于在第一弧形槽中支撑小纸卷的向上位置。当打印纸卷靠近端部时，随着转板的旋转，小纸卷在第一弧形槽中被限制，以防止小纸卷在打印期间在纸张室中移动。当打印纸的剩余量小于传感器和打印机构之间的距离时，传感器可以迅速准确地发出缺纸信号，从而提高传感器纸张检测的可靠性。

2. 发明授权

US08944362B2 Printer, paper, roll holder therof, and paper end detecting mechanism 有权
标题翻译：打印机，纸张，卷筒架和纸张端检测机构
公开(公告)号：US08944362B2
公开(公告)日：2015-02-03
申请号：US13516404
申请日：2010-11-04
申请人： Tianxin Jiang , Zhenxian Cong , Jigang Zhang , Min Yang , Kai Liu
发明人： Tianxin Jiang , Zhenxian Cong , Jigang Zhang , Min Yang , Kai Liu
IPC分类号： B65H18/04 , B41J11/00 , B41J15/04 , B41J29/02 , B41J29/13 , B41J29/48
CPC分类号： B41J11/0095 , B41J11/0075 , B41J15/042 , B41J29/02 , B41J29/13 , B41J29/48
摘要： A paper roll holder, a printer having the same and a paper end detecting mechanism are disclosed. The paper roll holder comprises a turning plate, which upper surface forms a first arc groove close to a rotation center and a second arc groove far away from the rotation center; an elastic element, providing a rotating torque to the turning plate so that the turning plate turns from an initial position to an upturning position during the printing and consuming of a paper roll; and a sensor, arranged in the second arc groove of the turning plate for detecting the paper. Wherein, the turning plate has the initial position suitable for supporting a large paper roll in the second arc groove and the upturning position suitable for supporting a small paper roll in the first arc groove. When the printing paper roll is near end, along with rotation of the turning plate, the small paper roll is limited in the first arc groove so as to prevent the small paper roll from moving in the paper house during printing. When the residual amount of the printing paper is less than the distance between the sensor and the printing mechanism, the sensor can promptly and accurately send out a paper lack signal, thereby improving the reliability of paper detection by the sensor.
摘要翻译：公开了一种卷纸托架，具有该卷筒托架的打印机和纸张端检测机构。纸卷保持器包括转板，该上表面形成靠近旋转中心的第一弧形槽和远离旋转中心的第二弧形槽; 弹性元件，其向转向板提供旋转扭矩，使得在打印和消耗纸卷期间转向板从初始位置转动到向上翻转位置; 以及传感器，布置在转盘的第二弧形槽中用于检测纸张。其中，转板具有适于在第二弧形槽中支撑大纸卷的初始位置和适于在第一弧形槽中支撑小纸卷的向上位置。当打印纸卷靠近端部时，随着转板的旋转，小纸卷在第一弧形槽中被限制，以防止小纸卷在打印期间在纸张室中移动。当打印纸的剩余量小于传感器和打印机构之间的距离时，传感器可以迅速准确地发出缺纸信号，从而提高传感器纸张检测的可靠性。

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