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    • 11. 发明授权
    • Printing apparatus and control method that includes an optical detector for detecting the presence or absence of an ink tank and ink therein
    • 包括用于检测墨盒和墨水的存在与否的光学检测器的打印设备和控制方法
    • US06443546B1
    • 2002-09-03
    • US09190092
    • 1998-11-12
    • Shinji Takagi
    • Shinji Takagi
    • B41J2195
    • B41J2/17546B41J2/17566
    • A low-cost printing apparatus and printing control method through which the absence or presence of an ink tank and ink can be determined accurately regardless of the surrounding environment. The printing apparatus obtains the difference between a first signal, which is obtained from light received by a light-receiving element (16) in a case where a light reflecting surface (41) and an optical prism (42) are irradiated with light, and a second signal, which is obtained from light received by the light-receiving element (16) in a case where the light reflecting surface (41) and optical prism (42) are not irradiated with light, compares the difference with a predetermined threshold value and determines whether or not ink is present and/or whether or not the ink tank is present, based upon the result of the comparison.
    • 一种低成本的打印设备和打印控制方法,可以准确地确定墨盒和墨水的不存在或不存在,而不管周围环境如何。 打印设备获得在光反射表面(41)和光学棱镜(42)被照射的情况下从由光接收元件(16)接收的光获得的第一信号之间的差;以及 在光反射面(41)和光学棱镜(42)未被光照射的情况下,由光接收元件(16)接收的光获得的第二信号将该差与预定阈值 并且基于比较的结果来确定是否存在墨水和/或墨水罐是否存在。
    • 14. 发明授权
    • Apparatus including power supply circuit
    • 设备包括电源电路
    • US08664799B2
    • 2014-03-04
    • US12817438
    • 2010-06-17
    • Yasufumi OgasawaraYuichi NaoiShinji Takagi
    • Yasufumi OgasawaraYuichi NaoiShinji Takagi
    • H02J1/10
    • B41J2/0458B41J2/04541Y10T307/696
    • An apparatus which has a load that consumes a predetermined amount of electric power per unit time includes a power source circuit configured to generate a voltage for driving the load, a capacitor which is connected to a supply line for supplying electric power to the load from the power source circuit and configured to stabilize a potential of the load, a first supply circuit which can supply electric power smaller than the predetermined amount to the capacitor and can discharge a charge from the capacitor, a second supply circuit which can supply electric power larger than the predetermined amount to the capacitor, a switch circuit configured to operate each of the first supply circuit and the second supply circuit, and a holding circuit configured to hold information based on the operation of the first supply circuit.
    • 具有每单位时间消耗预定电力量的负载的装置包括:电源电路,被配置为产生用于驱动负载的电压;电容器,连接到用于从负载供应电力的电源线 电源电路,其被配置为稳定负载的电位;第一电源电路,其可以向电容器提供小于预定量的电力,并且可以从电容器放电;第二电源电路,其可以提供大于 对电容器的预定量,被配置为操作第一电源电路和第二电源电路中的每一个的开关电路,以及配置为基于第一电源电路的操作保持信息的保持电路。