公开(公告)号：US20170038708A1

公开(公告)日：2017-02-09

申请号：US15227336

申请日：2016-08-03

Applicant: Konica Minolta, Inc.

Inventor： Katsuyuki IKUTA ,  Takeshi TAMADA ,  Yoshihito SASAMOTO ,  Hiroshi EGUCHI

IPC: G03G15/20

CPC classification number: G03G15/2017 ,  G03G15/2039 ,  G03G15/55 ,  H02H5/042

Abstract: An excessive heating protection circuit to be connected to a first temperature sensor being configured to output less voltage with a rise in temperature and a second temperature sensor being configured to output more voltage with a rise in temperature. The excessive heating protection circuit includes: a multiplexer having a plurality of channels capable of receiving reference voltages predetermined for the first and second temperature sensors, the multiplexer being configured to output one of the reference voltages by selecting one of the channels with reference to input selection signals; a first comparator being configured to compare the output voltage of the first temperature sensor to the output reference voltage of the multiplexer and to output a comparison result; and a second comparator being configured to compare the output voltage of the second temperature sensor to the output reference voltage of the multiplexer and to output a comparison result.

Abstract translation: 要连接到第一温度传感器的过热保护电路被配置为随着温度升高而输出较少的电压，而第二温度传感器被配置为随温度升高输出更多的电压。 过热保护电路包括：多路复用器，其具有能够接收为第一和第二温度传感器预定的参考电压的多个通道，多路复用器被配置为通过参考输入选择来选择一个通道来输出参考电压中的一个 信号; 第一比较器被配置为将第一温度传感器的输出电压与多路复用器的输出参考电压进行比较并输出比较结果; 并且第二比较器被配置为将第二温度传感器的输出电压与多路复用器的输出参考电压进行比较，并输出比较结果。

公开(公告)号：US20140212185A1

公开(公告)日：2014-07-31

申请号：US14162089

申请日：2014-01-23

Applicant: Konica Minolta, Inc.

Inventor： Teruhiko FUJIKURA ,  Satoshi MIYAJIMA ,  Tadayuki UEDA ,  Yoshihito SASAMOTO ,  Eiji NISHIKAWA ,  Takanobu SHIKI ,  Akinori KIMATA

IPC: G03G15/01

CPC classification number: G03G15/5058 ,  G03G15/0189 ,  G03G2215/0132 ,  G03G2215/0161

Abstract: An image forming apparatus forms decision registration mark for deciding whether or not a color registration correction for correcting color shifts in the color image carries out on an intermediate transfer belt. The decision registration mark is formed by registering four color registration marks. Color registration sensors detect a detection width of the decision registration mark along a sub scanning direction. A control portion receives the detection width of the decision registration mark and decides whether or not the color registration correction carries out based on whether or not the detection width of the decision mark detected by the detection portion exceeds the period of reference time. When the detection width of the decision mark detected by the detection portion exceeds the period of reference time, the control portion carries out the color registration correction.

Abstract translation: 图像形成装置形成用于判定在中间转印带上执行用于校正彩色图像中的颜色偏移的颜色对准校正​​的判定登记标记。 通过登记四个颜色配准标记形成决定登记标记。 颜色配准传感器检测沿副扫描方向的判定对准标记的检测宽度。 控制部分接收判定登记标记的检测宽度，并且基于检测部分检测到的判定标记的检测宽度是否超​​过参考时间周期来判定颜色登记校正是否被执行。 当由检测部分检测到的判定标记的检测宽度超过参考时间周期时，控制部分执行颜色配准校正。

公开(公告)号：US20210356891A1

公开(公告)日：2021-11-18

申请号：US17315877

申请日：2021-05-10

Applicant: KONICA MINOLTA, INC.

Inventor： Yasuhiro KOIDE ,  Yoshihito SASAMOTO ,  Makoto SHIMAZOE ,  Yuhei TATSUMOTO

IPC: G03G15/00

Abstract: An image forming device includes: a transfer unit transferring a toner image to a sheet; a resistance measurement member disposed on the upstream side in a sheet carriage direction of the transfer unit and for measuring resistance of the sheet; a charge elimination member disposed between the transfer unit and the resistance measurement member in the sheet carriage direction; a first voltage applying unit applying voltage for resistance measurement to the resistance measurement member; and a second voltage applying unit applying voltage of reverse bias of the voltage for resistance measurement to the charge elimination member. The width of a charge elimination region by the charge elimination member is wider than that of a charged region by the resistance measurement member in a direction perpendicular to the sheet carriage direction. The absolute value of the voltage for charge elimination is smaller than that of the voltage for resistance measurement.

公开(公告)号：US20240036503A1

公开(公告)日：2024-02-01

申请号：US18220300

申请日：2023-07-11

Applicant: KONICA MINOLTA, INC.

Inventor： Yasuo KOYANAGI ,  Kazumichi YOSHIDA ,  Yoshihito SASAMOTO ,  Kazutoshi YOSHIMURA

IPC: G03G15/00

CPC classification number: G03G15/5029 ,  G03G2215/00738

Abstract: [Problem] To provide a stiffness measuring device capable of highly accurately measuring the stiffness of a recording material such as a sheet, and an image forming system equipped with the stiffness measuring device.
[Solution] A stiffness measuring device includes a holding portion that holds a recording material so that a recording surface of the recording material is substantially parallel to a vertical direction, a pressing portion, and a stiffness acquiring section. The pressing portion presses a measurement point located on a lower side in the vertical direction than the portion of the recording material held by the holding portion. The stiffness acquiring section measure a reaction force obtained when the measurement point is pressed by the pressing portion and acquires the measured reaction force as the stiffness of the recording material.

公开(公告)号：US20210026287A1

公开(公告)日：2021-01-28

申请号：US16930890

申请日：2020-07-16

Applicant: Konica Minolta, Inc.

Inventor： Makoto SHIMAZOE ,  Yoshihito SASAMOTO ,  Yasuhiro KOIDE ,  Yuhei TATSUMOTO

IPC: G03G15/00

Abstract: A power supply apparatus includes a predetermined mode in which power consumption is suppressed and a normal mode in which the power consumption is not suppressed and which supplies power to an apparatus. the power supply apparatus includes the following, a cutting member which cuts off supply of the power to a fixing heater; a noise removing member which is positioned in a later stage of the cutting member and which removes noise in the power; and a controller which controls the cutting member. The controller controls the cutting member to cut off supply of the power to the noise removing member in the predetermined mode.