公开(公告)号：US09529422B2

公开(公告)日：2016-12-27

申请号：US14706418

申请日：2015-05-07

Applicant: KONICA MINOLTA, INC.

Inventor： Yuji Kobayashi ,  Harumitsu Fujimori ,  Akihiro Hayashi ,  Shiro Umeda ,  Kosuke Masumoto ,  Yasuhiro Ishihara ,  Hiroshi Yamaguchi ,  Isao Watanabe

IPC: G06F3/041 ,  G06F3/01 ,  G06F3/042 ,  G06F3/0488 ,  H04N5/232 ,  H04N9/31

CPC classification number: G06F3/01 ,  G06F3/017 ,  G06F3/0425 ,  G06F3/04842 ,  G06F3/0488 ,  H04N5/232 ,  H04N9/3179 ,  H04N9/3194

Abstract: An image display and photographing system includes a display device configured to display a target image on a surface; a photographing device configured to photograph the surface; a first detector configured to detect that an object moves away from a space between the surface and the photographing device; a second detector configured to detect that, after the first detector detects that the object moves away from the space, the surface is touched at a predetermined position; a third detector configured to detect that, after the second detector detects that the surface is touched at the predetermined position, the object moves away from the space; and a photographing control portion configured to control, after the third detector detects that the object moves away from the space, the photographing device to photograph the surface.

Abstract translation: 图像显示和拍摄系统包括被配置为在表面上显示目标图像的显示装置; 被配置为拍摄所述表面的拍摄装置; 第一检测器，被配置为检测物体远离所述表面和所述拍摄装置之间的空间; 第二检测器，被配置为检测在所述第一检测器检测到所述物体远离所述空间之后，所述表面在预定位置被触摸; 第三检测器，被配置为检测在所述第二检测器检测到所述表面在所述预定位置被触摸之后，所述物体远离所述空间; 以及拍摄控制部，被配置为在所述第三检测器检测到所述物体远离所述空间之后控制所述拍摄装置拍摄所述表面。

公开(公告)号：US09389552B2

公开(公告)日：2016-07-12

申请号：US14642181

申请日：2015-03-09

Applicant: KONICA MINOLTA INC.

Inventor： Satoshi Chikazawa ,  Toshiaki Tanaka ,  Kosuke Masumoto ,  Yasuhiro Ishihara

IPC: G03G15/20

CPC classification number: G03G15/2039

Abstract: An image forming apparatus includes: a sheet feeding unit configured to feed a plurality of sheets to an image forming unit one by one; the image forming unit configured to form a toner image based on image data; a fixing unit configured to fix the toner image formed on each sheet by the image forming unit with a fixing member, the fixing unit including the fixing member configured to be brought into contact with each sheet supplied from the image forming unit and heat each sheet; a measuring unit configured to measure a temperature of the fixing member; and a control unit configured to instruct the fixing unit to start and stop a temperature increasing operation, and provide the image data to the image forming unit, wherein the control unit includes: a temperature drop rate calculating unit; a temperature rise rate predicting unit; and an instructing unit.

Abstract translation: 图像形成装置包括：片材进给单元，被配置为将多张片材一个一个地供给到图像形成单元; 所述图像形成单元被配置为基于图像数据形成调色剂图像; 固定单元，其被构造成通过固定构件将由图像形成单元形成的调色剂图像固定，所述定影单元包括固定构件，其被配置为与从图像形成单元供应的每个片材接触并加热每个片材; 测量单元，被配置为测量所述固定构件的温度; 以及控制单元，被配置为指示定影单元启动和停止升温操作，并将图像数据提供给图像形成单元，其中控制单元包括：温度降低率计算单元; 温升预测单元; 和指导单位。

公开(公告)号：US10256711B2

公开(公告)日：2019-04-09

申请号：US15878485

申请日：2018-01-24

Applicant: KONICA MINOLTA, INC.

Inventor： Satoshi Chikazawa ,  Toshinori Inomoto ,  Yasuhiro Ishihara

IPC: H02M1/12 ,  G03G15/00 ,  H02M3/335 ,  H02M1/00

Abstract: A power control apparatus that supplies an AC current to a load and adjusts a current amount by setting a portion of a phase range among each of half-wave periods of the AC current to be supplied as a conduction angle and setting the remainder as a non-conduction angle, includes: a reference value determiner that defines a period across a plurality of half-wave periods as a current determination period and that determines a reference value of the conduction angle; and a distribution processor that determines a distribution value to distribute the conduction angle and performs current amount adjustment by distributed conduction angles, wherein the distribution processor determines the distribution value within one current determination period such that the value includes a positive distribution value and a negative distribution value, and an average value of the distributed conduction angles is within ±2.5% with respect to the reference value.

公开(公告)号：US09098030B2

公开(公告)日：2015-08-04

申请号：US14221412

申请日：2014-03-21

Applicant: Konica Minolta, Inc.

Inventor： Kosuke Sasaki ,  Yasuhiro Ishihara ,  Toshiaki Tanaka

IPC: G03G15/20

CPC classification number: G03G15/2039

Abstract: An image forming apparatus having: an endless fixing belt; a heating member heating the fixing belt; a support member maintaining the fixing belt substantially circular; a pressing member in contact with the fixing belt to form a fixing nip portion; a temperature sensor; a position detector; a storage storing temperatures and positions of the fixing belt detected by the temperature sensor and the position detector; and a control unit. The control unit is operable in a characteristic storing mode and in a fixing mode. In the characteristic storing mode, temperatures of the fixing belt associated with positions are detected, and the detected temperatures and positions are stored in the storage. In the fixing mode, temperatures of the fixing nip portion are predicted with reference to the temperatures and positions stored in the storage, and the heating member is controlled such that the predicted temperatures become a target temperature.

Abstract translation: 一种图像形成装置，具有：环形定影带; 加热构件加热定影带; 保持定影带大致圆形的支撑件; 与所述定影带接触的按压构件，以形成定影夹持部; 温度传感器; 位置检测器; 存储器，存储由温度传感器和位置检测器检测的定影带的温度和位置; 和控制单元。 控制单元可以在特征存储模式和定影模式下操作。 在特征存储模式中，检测与位置相关联的定影带的温度，并且将检测到的温度和位置存储在存储器中。 在定影模式中，参照存储在存储器中的温度和位置预测定影夹持部分的温度，并且控制加热部件使得预测温度成为目标温度。

公开(公告)号：US20240385561A1

公开(公告)日：2024-11-21

申请号：US18650849

申请日：2024-04-30

Applicant: Konica Minolta, Inc.

Inventor： Takashi Watanabe ,  Yoshikazu Watanabe ,  Yasuhiro Ishihara ,  Yukinobu Iguchi ,  Shougo Kamiya ,  Tatsuya Eguchi

IPC: G03G15/00

Abstract: An image forming system conveys a recording medium to form an image. The image forming system includes: a driver to drive an operation mechanism to convey a recording medium or an operation mechanism to form an image on the recording medium; a detector that detects a driving state of the driver; a diagnostic section diagnosing an abnormality of the operation mechanism based on a load obtained by converting a detection result by the detector based on a predetermined conversion condition; and an updater that, when at least one of components of the driver is replaced, updates the conversion condition in accordance with the replaced component.

公开(公告)号：US10766252B2

公开(公告)日：2020-09-08

申请号：US16502961

申请日：2019-07-03

Applicant: Konica Minolta, Inc.

Inventor： Yasuhiro Ishihara ,  Yuhei Tatsumoto ,  Toshikazu Higashi ,  Makoto Shimazoe

IPC: B41J2/045

Abstract: A heater includes: a planar heat generator; a power supply circuit that controls supply of power to the planar heat generator; a plurality of temperature sensors that is provided on the planar heat generator and measures a temperature; and a hardware processor that detects abnormality of the temperature sensor in a case where a difference in temperature measured by each of two of the temperature sensors out of the plurality of temperature sensors exceeds an abnormality threshold value after a predetermined waiting time has elapsed since the supply of power to the planar heat generator is stopped.

公开(公告)号：US09423731B2

公开(公告)日：2016-08-23

申请号：US14340803

申请日：2014-07-25

Applicant: KONICA MINOLTA, INC.

Inventor： Toshiaki Tanaka ,  Yasuhiro Ishihara ,  Toshinori Inomoto

IPC: G03G15/20 ,  G06K15/12 ,  G06K15/02

CPC classification number: G03G15/2039 ,  G03G15/205 ,  G03G2215/0132 ,  G06K15/12 ,  G06K15/1822

Abstract: An image forming apparatus forms a toner image of text on a recording sheet based on PDL data prescribing text data and one or more print conditions of thereof, and thermally fixes the toner image, and includes: condition acquisition unit analyzing the PDL data to acquire, as the conditions, one or more of character number, character spacing, and line spacing from the PDL data; judgment unit judging for each condition, by comparing the condition with reference value, the judgment indicating whether the condition is suitable for ensuring fixability of the toner image if thermally fixed at a temperature that is lower than predetermined temperature; and temperature control unit, when the judgment unit judges negatively for at least one condition, setting a fixing temperature for thermally fixing the toner image to the predetermined temperature, when the judgment unit judges affirmatively for all conditions, setting the fixing temperature to the lower temperature.

Abstract translation: 图像形成装置基于规定文本数据的PDL数据及其一个或多个打印条件在记录纸上形成文本的调色剂图像，并且对色调剂图像进行热定影，并且包括：条件获取单元，分析PDL数据， 作为条件，与PDL数据中的一个或多个字符数，字符间隔和行间距; 判断单元，通过将条件与参考值进行比较，判断条件是否适合于确保在低于预定温度的温度下热定影的调色剂图像的定影性; 和温度控制单元，当判断单元对至少一个条件判断为否定时，将用于将调色剂图像热定影的定影温度设置为预定温度，当判断单元判断所有条件时，将定影温度设定为较低温度 。

公开(公告)号：US09310727B2

公开(公告)日：2016-04-12

申请号：US14559015

申请日：2014-12-03

Applicant: Konica Minolta, Inc.

Inventor： Kosuke Masumoto ,  Toshiaki Tanaka ,  Yasuhiro Ishihara ,  Satoshi Chikazawa

IPC: G03G15/20

CPC classification number: G03G15/2039

Abstract: An image forming apparatus forming toner images sequentially on recording sheets transported at intervals, and thermally fixing the toner images by passing the recording sheets through a fixing position on a heating roller. The target fixing temperature is determined according to information of an image on each page. When a first fixing temperature for a given page is higher than a second fixing temperature for the succeeding page and the difference therebetween is greater than a predefined value, part or all of a first period, during which the thermal fixing operation for the given page is performed, and a second period, which corresponds to an interval between the two pages, are reserved for raising the surface temperature by the difference, and temperature control is performed during the reserved periods such that the surface temperature reaches the second temperature before the thermal fixing operation for the succeeding page starts.

Abstract translation: 一种图象形成装置，在间隔传送的记录片材上顺序地形成调色剂图像，并且通过使记录片材通过加热辊上的固定位置来热定影调色剂图像。 目标定影温度根据每页上的图像的信息来确定。 当给定页面的第一定影温度高于后续页面的第二定影温度并且它们之间的差异大于预定值时，第一周期的部分或全部是给定页面的热定影操作 并且对应于两页之间的间隔的第二周期被保留用于通过差异来提高表面温度，并且在预留时段期间执行温度控制，使得表面温度在热定影之前达到第二温度 启动后续页面的操作。

公开(公告)号：US12291421B2

公开(公告)日：2025-05-06

申请号：US17808729

申请日：2022-06-24

Applicant: KONICA MINOLTA, INC.

Inventor： Yasuhiro Ishihara ,  Toshikazu Higashi ,  Masahiro Kamiya ,  Shigetaka Kato ,  Katsuhide Sakai

IPC: B65H7/02 ,  B65H7/14 ,  B65H7/20 ,  G03G15/00

Abstract: An image forming apparatus includes: a sheet feeding conveyor that feeds and conveys a recording medium to a conveyance path; an image former that performs image formation on the recording medium; a medium sensor that is disposed on an upstream side of the recording medium from the image former on the conveyance path and measures one or more sheet physical properties regarding the recording medium conveyed; a first hardware processor that determines a type of the recording medium on a basis of the sheet physical properties measured by the medium sensor; a second hardware processor that determines conveyance performance for the recording medium; and a third hardware processor that determines whether or not to perform the image formation on a basis of the conveyance performance in a case where the type of the recording medium determined by the first hardware processor is a type out of product specifications.

公开(公告)号：US09709917B2

公开(公告)日：2017-07-18

申请号：US15157304

申请日：2016-05-17

Applicant: Konica Minolta, Inc.

Inventor： Toshiaki Tanaka ,  Yasuhiro Ishihara ,  Mineo Yamamoto

IPC: G03G15/00 ,  G03G15/043 ,  G03G15/04

CPC classification number: G03G15/043 ,  G03G15/04054

Abstract: An image forming apparatus includes: an array of m light-emitting elements extending in a main scanning direction, the m being an integer satisfying m≧3; a memory that stores a cumulative light emission time of each of the m light-emitting elements; a light intensity adjusting portion that obtains a light intensity adjusting value for the each light-emitting element; an activating portion that controls the activation and deactivation of the each light-emitting element with the light intensity adjusting value; and a selecting portion that selects n light-emitting elements from an end of the array, the n being an integer satisfying n≧2 and n