公开(公告)号：US20170272599A1

公开(公告)日：2017-09-21

申请号：US15444433

申请日：2017-02-28

Applicant: Konica Minolta, Inc.

Inventor： Hitoshi Asano ,  Katsuhide Sakai ,  Tomonobu Tamura ,  Harumitsu Fujimori

IPC: H04N1/031 ,  H04N1/028 ,  H04N1/03

CPC classification number: H04N1/0318 ,  H04N1/0285 ,  H04N1/02865 ,  H04N1/02895 ,  H04N1/0306 ,  H04N2201/0081 ,  H04N2201/02487 ,  H04N2201/02493 ,  H04N2201/02497

Abstract: A reading apparatus that reads a sheet includes: a first light emitting diode (LED) configured to emit light with a specific wavelength; a light emitting element including a second LED configured to emit light with the specific wavelength and a phosphor configured to be excited by the light emitted from the second LED; a line sensor configured to generate a reference signal according to a quantity of received light emitted from the first LED and reflected off the sheet, and also generate an image signal according to a quantity of received light emitted from the light emitting element and reflected off the sheet; and a controller configured to generate an image representing the sheet from a differential result obtained by removing a component corresponding to the reference signal from the image signal.

公开(公告)号：US09377731B1

公开(公告)日：2016-06-28

申请号：US14972973

申请日：2015-12-17

Applicant: Konica Minolta, Inc.

Inventor： Masayuki Watanabe ,  Hiroshi Yamaguchi ,  Hitoshi Asano ,  Daichi Suzuki

IPC: G03G15/20

CPC classification number: G03G15/205 ,  G03G15/2042

Abstract: An image forming apparatus includes: a fixing unit configured to include at least a first and second radiation heaters capable of heating printing medium; a power supply unit configured to supply power to the first and second radiation heaters; and a controller configured to select either one of the first and second radiation heaters and control to light or turn off the selected radiation heater, wherein a heating width of the printing medium of the second radiation heater is wider than that of the first radiation heater, and the controller determines whether to preheat the second radiation heater based on the number of times of lighting of the first and second radiation heaters and controls to light and turn off the second radiation heater when the controller has determined that it is necessary to preheat the second radiation heater.

Abstract translation: 图像形成装置包括：固定单元，被配置为至少包括能够加热打印介质的第一和第二辐射加热器; 电源单元，被配置为向所述第一和第二辐射加热器供电; 以及控制器，被配置为选择第一和第二辐射加热器中的任一个并控制以点亮或关闭所选择的辐射加热器，其中第二辐射加热器的打印介质的加热宽度比第一辐射加热器的加热宽度宽， 并且所述控制器基于所述第一和第二辐射加热器的点亮次数来确定是否预热所述第二辐射加热器，并且当所述控制器确定需要预热所述第二辐射加热器时，控制所述第二辐射加热器并点亮所述第二辐射加热器，并且关闭所述第二辐射加热器 辐射加热器。

公开(公告)号：US20180175751A1

公开(公告)日：2018-06-21

申请号：US15839981

申请日：2017-12-13

Applicant: Konica Minolta, Inc.

Inventor： Kazumichi Yoshida ,  Katsuhide Sakai ,  Tomonobu Tamura ,  Hitoshi Asano ,  Harumitsu Fujimori

IPC: H02P3/02 ,  H02P3/14 ,  H02P21/36 ,  G03G15/00

CPC classification number: H02P3/025 ,  G03G15/6529 ,  H02P3/14 ,  H02P21/36

Abstract: A controller for a permanent magnet synchronous motor having a rotor using a permanent magnet is provided. The rotor rotates by a rotating magnetic field caused by a current flowing through an armature. The controller starts a deceleration control of reducing a rotational speed of the rotor when a stop command is inputted in a state where the rotor rotates at a predetermined rotational speed; and performs a fixed excitation control when the rotational speed is reduced to a set speed. The fixed excitation control includes setting a current for causing a magnetic field vector for stopping the rotor at a target position in accordance with an amount of rotation of the rotor since the deceleration control has started and passing the current through the armature.