公开(公告)号：US12011917B2

公开(公告)日：2024-06-18

申请号：US17972627

申请日：2022-10-25

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hitoshi Hayamizu ,  Daijiro Ueno ,  Tetsuya Ueno ,  Hisaji Kawai ,  Haruki Sayama

IPC: B41J11/00 ,  B41J29/17 ,  B41J29/377 ,  G01N21/89 ,  G01N29/04 ,  G01N29/24

CPC classification number: B41J11/0095 ,  B41J11/007 ,  B41J29/17 ,  B41J29/377 ,  G01N21/89 ,  G01N29/04 ,  G01N29/2437 ,  G01N2291/023 ,  G01N2291/048 ,  G01N2291/102

Abstract: An image forming apparatus includes an image forming device, a transport belt, an optical sensor, an ultrasonic sensor, and a controller. The transport belt transports the recording sheet. The optical sensor emits light to the transport belt, and receives the light reflected by the transport belt. The ultrasonic sensor transmits ultrasonic wave to the transport belt, and receives the ultrasonic wave transmitted through the transport belt. The controller decides whether an output from each of the optical sensor and the ultrasonic sensor represents a normal value or an abnormal value, and executes predetermined control, depending on a combination of decision results about the respective outputs from the optical sensor and the ultrasonic sensor.

公开(公告)号：US11260674B2

公开(公告)日：2022-03-01

申请号：US16779089

申请日：2020-01-31

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hisaji Kawai

IPC: B41J3/60 ,  B41J13/00 ,  B41J11/00 ,  B65H7/14 ,  B41J11/46

Abstract: An image forming apparatus includes a sheet conveyance portion, a recording portion, a sheet detection portion, and a control portion. In a duplex printing including a first and a second process of printing on a first surface and a second surface of the sheet, in the first process, the control portion calculates a center position of the sheet based on an edge position of the sheet on one side in the width direction and size information of the sheet, prints a first image on the first surface such that the first image is centered on the center position calculated, and prints a reference marker on the first surface. In the second process, the control portion calculates a correction magnification ratio based on a difference between a reading position and the printing position of the reference marker, and corrects a size and a printing position of a second image.

公开(公告)号：US20170111536A1

公开(公告)日：2017-04-20

申请号：US15294451

申请日：2016-10-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hisaji Kawai

IPC: H04N1/00

CPC classification number: H04N1/00904 ,  H04N1/00129 ,  H04N2201/0089 ,  H04N2201/0094

Abstract: This display device includes a display control portion, a first power supply, a second power supply, and a connection control portion. The display control portion is capable of controlling display of a display panel and is configured to execute a predetermined control finish process before display control for the display panel is finished. The first power supply is configured to supply power supplied from an external power supply, to the display control portion. The second power supply is capable of storing power and is configured to supply power to a clock portion. The connection control portion is configured to connect the display control portion with the first power supply if disconnection of connection between the external power supply and the first power supply is not detected, and connect the display control portion with the second power supply if disconnection of the connection is detected.

公开(公告)号：US11568190B2

公开(公告)日：2023-01-31

申请号：US17207064

申请日：2021-03-19

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hisaji Kawai

IPC: G06K15/00 ,  B41J2/175 ,  B41J29/393 ,  G01F23/263 ,  B41J2/17

Abstract: A liquid surface detector includes an electrode pad, a coil, a memory, and a detection control circuit. The electrode pad is attached to an outer side surface of a tank of the image forming apparatus. The coil is connected to the electrode pad. The memory stores initial values. The detection control circuit determines a capacitance (first capacitance) of a first resonance circuit including the coil and the tank with the electrode pad. When determining a liquid surface level value, the detection control circuit subtracts an error value from the first capacitance so as to determine a first corrected capacitance, and determines the liquid surface level value based on the first corrected capacitance and the initial value.

公开(公告)号：US09179012B2

公开(公告)日：2015-11-03

申请号：US14581377

申请日：2014-12-23

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hisaji Kawai

IPC: H04N1/04 ,  H04N1/00

CPC classification number: H04N1/00005 ,  H04N1/00013 ,  H04N1/00037 ,  H04N1/00082

Abstract: An image reading apparatus includes an imaging unit and a noise detecting unit. The imaging unit includes a valid pixel group constituted of imaging elements arranged in one row in a main-scanning direction valid for reading a document image and dummy pixel groups constituted of imaging elements arranged on both sides of the valid pixel group invalid for reading the document image. The imaging unit reads each line of the document image while moving relatively to a sub-scanning direction. The noise detecting unit detects a noise mixing into the line read by the imaging unit based on an image signal captured by the dummy pixel group. The dummy pixel group receives a predetermined luminescence level of light. The noise detecting unit detects the noise mixing into the line when a pixel value output from the dummy pixel group varies to exceed a predetermined value.

Abstract translation: 图像读取装置包括成像单元和噪声检测单元。 成像单元包括由有效用于读取文档图像的主扫描方向排列成一行的成像元件构成的有效像素组以及排列在有效像素组两侧的成像元件构成的伪像素组，对于读取文档无效 图片。 成像单元在相对于副扫描方向移动的同时读取文档图像的每一行。 噪声检测单元基于由虚拟像素组捕获的图像信号，检测由成像单元读取的线中的噪声混合。 虚拟像素组接收预定的发光水平的光。 当从虚拟像素组输出的像素值变化超过预定值时，噪声检测单元检测到线中的噪声混合。

公开(公告)号：US11835903B2

公开(公告)日：2023-12-05

申请号：US17954714

申请日：2022-09-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hitoshi Hayamizu ,  Daijiro Ueno ,  Tetsuya Ueno ,  Hisaji Kawai ,  Haruki Sayama

IPC: G03G15/00

CPC classification number: G03G15/55 ,  G03G15/757 ,  G03G2215/00637

Abstract: An electronic apparatus includes a drive unit having a drive roller, a driving motor, and a limited-life component, a sound collecting device that collects sound from the limited-life component, and outputs sound data, a storage device storing in advance a sound pressure level corresponding to a specific frequency of the limited-life component, with respect to each of different lengths of the remaining service life, and a controller that analyzes frequency of the sound data at predetermined time points; acquires the sound pressure level corresponding to the specific frequency of the limited-life component, on a basis of a result of the frequency analysis; compares the acquired sound pressure level with the sound pressure level of each of the lengths of the remaining service life; predicts the remaining service life of the limited-life component, on a basis of comparison result; and displays the predicted remaining service life on a display device.

公开(公告)号：US10069991B2

公开(公告)日：2018-09-04

申请号：US15294451

申请日：2016-10-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hisaji Kawai

IPC: H04N1/00

Abstract: This display device includes a display control portion, a first power supply, a second power supply, and a connection control portion. The display control portion is capable of controlling display of a display panel and is configured to execute a predetermined control finish process before display control for the display panel is finished. The first power supply is configured to supply power supplied from an external power supply, to the display control portion. The second power supply is capable of storing power and is configured to supply power to a clock portion. The connection control portion is configured to connect the display control portion with the first power supply if disconnection of connection between the external power supply and the first power supply is not detected, and connect the display control portion with the second power supply if disconnection of the connection is detected.

公开(公告)号：US08896895B2

公开(公告)日：2014-11-25

申请号：US14221107

申请日：2014-03-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hisaji Kawai

IPC: H04N1/46 ,  H04N1/00

CPC classification number: H04N1/00819 ,  H04N1/00814 ,  H04N2201/0081

Abstract: An image reading apparatus includes: a light amount adjustment portion which performs light amount adjustment on a light source such that the maximum value of the analog output of an image sensor does not exceed the upper limit value of an input voltage range of an A/D conversion portion but approaches the upper limit value; a temperature sensor which measures a temperature; and a storage portion which stores a temperature at the time of the light amount adjustment. When an absolute value of a temperature difference between a temperature stored in the storage portion and the current temperature is less than a threshold value, the light amount adjustment portion does not perform the light amount adjustment whereas when the absolute value is equal to or more than the threshold value, the light amount adjustment portion performs the light amount adjustment.

Abstract translation: 图像读取装置包括：光量调节部，其对光源进行光量调整，使得图像传感器的模拟输出的最大值不超过A / D的输入电压范围的上限值 转换部分但接近上限值; 测量温度的温度传感器; 以及存储部分，其存储在光量调节时的温度。 当存储在存储部分中的温度与当前温度之间的温度差的绝对值小于阈值时，光量调节部分不执行光量调节，而当绝对值等于或大于 阈值时，光量调整部进行光量调整。