公开(公告)号：US20240192900A1

公开(公告)日：2024-06-13

申请号：US18496380

申请日：2023-10-27

Applicant: Konica Minolta, Inc.

Inventor： Takeshi TAMADA ,  Takahiro TSUJIMOTO ,  Masahiro KAMIYA

IPC: G06F3/12

CPC classification number: G06F3/1204 ,  G06F3/1207 ,  G06F3/121 ,  G06F3/1255 ,  G06F3/1259 ,  G06F3/1288

Abstract: An image forming apparatus includes a display section and a hardware processor that controls at least the display section, wherein the hardware processor causes the display section to display first information regarding a brand of the recording medium or a manufacturer of the recording medium, and second information regarding a usage amount or a usage rate of the recording medium associated with the first information.

公开(公告)号：US20170038711A1

公开(公告)日：2017-02-09

申请号：US15227369

申请日：2016-08-03

Applicant: Konica Minolta, Inc.

Inventor： Seiichi KIRIKUBO ,  Mikiyuki AOKI ,  Akinori KIMATA ,  Takeshi TAMADA

IPC: G03G15/20

CPC classification number: G03G15/2039

Abstract: A fuser control device includes: a fusing portion having a heater; a chopper portion including a reactor, a free-wheeling element, and a switching element; and a processor portion being configured to implement a first current control during an implementation period, the implementation period including a first time interval and a second time interval, the implementation period being longer than a commercial power period, the first current control for transferring a control signal having a predetermined duty ratio to the switching element during the first time interval and transferring a control signal having a 100% duty ratio to the switching element during the second time interval.

Abstract translation: 定影器控制装置包括：具有加热器的定影部; 包括反应器，续流元件和开关元件的切断器部分; 以及处理器部分，其被配置为在实施期间内实施第一电流控制，所述实施周期包括第一时间间隔和第二时间间隔，所述实施周期长于商业功率周期，所述第一电流控制用于传送控制 信号在第一时间间隔期间具有与开关元件的预定占空比，并且在第二时间间隔期间将具有100％占空比的控制信号传送给开关元件。

公开(公告)号：US20240241470A1

公开(公告)日：2024-07-18

申请号：US18405499

申请日：2024-01-05

Applicant: Konica Minolta, Inc.

Inventor： Masahiro KAMIYA ,  Takahiro TSUJIMOTO ,  Takeshi TAMADA

IPC: G03G15/00

CPC classification number: G03G15/5016 ,  G03G15/5062

Abstract: An information processing apparatus including a hardware processor that: acquires output information of a recording medium on which an image is formed by an image forming apparatus and recording medium-related information, and determines, based on the output information and the recording medium-related information that is acquired, information on a recording medium that is recommended for use in the image forming apparatus or information on a recording medium that is not recommended for use in the image forming apparatus.

公开(公告)号：US20170261892A1

公开(公告)日：2017-09-14

申请号：US15440741

申请日：2017-02-23

Applicant: KONICA MINOLTA, INC.

Inventor： Mikiyuki AOKI ,  Seiichi KIRIKUBO ,  Taku KIMURA ,  Akinori KIMATA ,  Takeshi TAMADA

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/205 ,  G03G15/2039 ,  G03G15/80

Abstract: A power supply control device including a chopper circuit generating a heater current for a halogen heater, a current feedback circuit generating a current feedback signal indicating a current amount based on an amount of the heater current, and a constant current circuit performing pulse-width modulation of the heater current amount according to a difference between a target heater current amount and the current amount indicated by the current feedback signal. The current feedback circuit switches between methods at least including a first method and a second method for generating the current feedback signal. The current feedback signal indicates a greater current amount with the first method than with the second method, and the current feedback circuit uses the first method during a period with a predetermined time length starting from when the halogen heater is turned on, and uses the second method after elapse of the period.

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：US20140348528A1

公开(公告)日：2014-11-27

申请号：US14282858

申请日：2014-05-20

Applicant: KONICA MINOLTA, INC.

Inventor： Kenji TAMAKI ,  Takeshi TAMADA ,  Kenji YAMAMOTO ,  Kosuke SASAKI ,  Shohei OTSU

IPC: G03G15/20

CPC classification number: G03G15/205

Abstract: An image forming apparatus is provided with a fixing unit in which flickers can be effectively reduced while inhibiting electric current imbalance. The fixing unit comprises a fixing heater, a switching unit for switching the fixing heater on/off with an AC power source, and a control unit which controls the switching unit to switch in units of the half wave period of the AC power source AC, and a storing unit for storing a plurality of energization patterns which define the ways of performing the switch control. Each energization pattern corresponds to a control cycle which contains a three or more odd number of the half wave periods each of which is either an OFF period and an ON period, and all the half wave periods of the smaller in number of the ON periods and the OFF periods are not successively arranged.

Abstract translation: 图像形成装置设置有固定单元，其中可以有效地减少闪烁，同时抑制电流不平衡。 定影单元包括定影加热器，用AC电源切换定影加热器的切换单元，以及控制单元，其以交流电源AC的半波周期为单位进行控制， 以及存储单元，用于存储限定执行开关控制的方式的多个通电模式。 每个通电模式对应于一个控制周期，该控制周期包含三个或更多奇数个半波周期，每个半波周期为OFF周期和导通周期，并且所有半波周期的数目的ON周期数和 关闭周期未连续排列。

公开(公告)号：US20130331246A1

公开(公告)日：2013-12-12

申请号：US13911359

申请日：2013-06-06

Applicant: KONICA MINOLTA, INC.

Inventor： Masahiro KAMIYA ,  Takeshi TAMADA

IPC: G05B13/00

CPC classification number: G05B13/00 ,  G03G15/6582 ,  G03G2215/00814

Abstract: A sheet processing apparatus is described which is used to process a sheet transferred from an image forming apparatus such as a copying machine. A sheet processing apparatus is provided with a punching unit which cuts off part of a sheet conveyed along a conveying route, and a humidifying unit located on this conveying route in the upstream side of the punching unit and configured to humidify a predetermined area which is selected from the entire area of the sheet and includes punch areas to be cut off from the conveyed sheet by the punching unit. The cutting wastes can thereby be electrostatically discharged without leaving the sheet excessively wet.

Abstract translation: 描述了用于处理从诸如复印机的图像形成装置传送的片材的片材处理装置。 片材处理装置设置有冲切单元，该冲切单元切断沿输送路径输送的薄片的一部分，以及加湿单元，位于冲压单元的上游侧的该输送路径上，并且被配置为加湿所选择的预定区域 从片材的整个区域，并且包括通过冲压单元从被输送的片材切断的冲压区域。 因此，切割废料可以静电排出，而不会使纸张过度湿润。

公开(公告)号：US20210058529A1

公开(公告)日：2021-02-25

申请号：US16998408

申请日：2020-08-20

Applicant: Konica Minolta, Inc.

Inventor： Takahiro TSUJIMOTO ,  Takeshi TAMADA ,  Tianhua XU ,  Hiroaki TAKATSU ,  Katsuyuki IKUTA ,  Akihiro HAYASHI

IPC: H04N1/00

Abstract: An image forming apparatus, includes: a media sensor that detects a sheet type; a fixer that fixes the image on a sheet; a storage that stores a fixing temperature for each sheet type; and a hardware processor that controls power supplied to the fixer by pulse-width modulation (PWM) control and controls a temperature of the fixer to the fixing temperature corresponding to the sheet type detected by the media sensor.

公开(公告)号：US20160124356A1

公开(公告)日：2016-05-05

申请号：US14869153

申请日：2015-09-29

Applicant: KONICA MINOLTA, INC.

Inventor： Takeshi TAMADA ,  Mikiyuki AOKI ,  Seiichi KIRIKUBO ,  Akinori KIMATA

IPC: G03G15/20

CPC classification number: G03G15/5004 ,  G03G15/2039 ,  G03G15/205 ,  G03G15/80 ,  G03G2215/0132

Abstract: An image forming apparatus includes: a fixing part including a heater, and a first temperature detection part configured to detect the temperature of the heater; a chopper circuit including a reactor, a freewheeling element, and a switching element, the chopper circuit being configured to switch an input direct current on and off in a specified duty cycle by using the switching element and to supply the current to the heater; and a control part configured to control the duty cycle based on a detection result obtained by the first temperature detection part, as well as to control a switching frequency of the switching element based on an operation mode of the image forming apparatus.

Abstract translation: 图像形成装置包括：固定部，包括加热器;第一温度检测部，被配置为检测加热器的温度; 包括电抗器，续流元件和开关元件的斩波电路，所述斩波电路被配置为通过使用所述开关元件在指定的占空比中切换输入直流电流并将电流提供给所述加热器; 以及控制部，其被配置为基于由所述第一温度检测部获得的检测结果来控制所述占空比，以及基于所述图像形成装置的操作模式来控制所述开关元件的开关频率。

公开(公告)号：US20150160595A1

公开(公告)日：2015-06-11

申请号：US14560327

申请日：2014-12-04

Applicant: Konica Minolta, Inc.

Inventor： Takeshi TAMADA ,  Satoshi Ogata ,  Kenji Izumiya ,  Masatoshi Hitaka

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/55

Abstract: An image forming apparatus performs a serviceman call detection mode during its idling time. In this time, a control portion controls upper and lower pressuring rollers to be clamped, controls a driving motor, and controls a change-over mechanism to switch a braking motor off. A torque detection portion detects a torque value Y of the driving motor at this time. The control portion then controls the upper and lower pressuring rollers to be clamped, controls the driving motor, and controls the change-over mechanism to switch the braking motor on. The torque detection portion detects a torque value Z of the driving motor at this time. The control portion subtracts the torque value Y from the torque value Z to calculate a difference value. The control portion determines that the breaking motor is broken down when the difference value does not exceed the threshold value.

Abstract translation: 图像形成装置在其空转时间期间执行维修人员呼叫检测模式。 此时，控制部控制要被夹紧的上压力辊和下压辊，控制驱动电动机，并控制切换机构以切断制动电动机。 此时，转矩检测部检测驱动电动机的转矩值Y. 然后，控制部控制上下加压辊被夹紧，控制驱动电动机，并控制转换机构，使制动电动机接通。 转矩检测部此时检测驱动电动机的转矩值Z。 控制部从转矩值Z中减去转矩值Y来计算差值。 当差值不超过阈值时，控制部分确定断开电动机被分解。