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    • 2. 发明授权
    • Image forming apparatus with loop control
    • 具有回路控制的图像形成装置
    • US07941063B2
    • 2011-05-10
    • US12355233
    • 2009-01-16
    • Akimichi SuzukiHideo NanatakiKenji WatanabeKenji Takagi
    • Akimichi SuzukiHideo NanatakiKenji WatanabeKenji Takagi
    • G03G15/00G03G15/20
    • G03G15/657G03G2215/00616G03G2215/00721G03G2215/00945
    • An image forming apparatus is provided, which prevents occurrence of conveying malfunction or image failure due to variation of conveying speed caused by endurance of a fixing unit or a conveying unit, variation of using environment, or a type of a recording material. The image forming apparatus includes: a fixing unit for heating and fixing a toner image on a recording sheet (P); a secondary transferring portion for conveying the recording sheet (P) to the fixing unit; a loop sensor for detecting a degree of a loop of the recording sheet (P) generated according to a speed difference between a conveying speed of the fixing unit and a conveying speed of the secondary transferring portion; a CPU for controlling the conveying speed of the fixing unit; a fixing deliver sensor for detecting a used amount of the fixing unit; and an EEPROM for storing information on the used amount of the fixing unit detected by the fixing deliver sensor. The CPU controls the conveying speed of the fixing unit based on the information of the used amount of the fixing unit stored in the EEPROM and a detection result of the loop sensor.
    • 提供了一种图像形成装置,其防止由于定影单元或输送单元的耐久性的变化引起的输送故障或图像故障的发生,使用环境的变化或记录材料的类型的发生。 图像形成装置包括:用于在记录纸(P)上加热和定影调色剂图像的定影单元; 用于将记录纸(P)输送到定影单元的二次转印部分; 环路传感器,用于检测根据所述定影单元的输送速度与所述二次转印部分的输送速度之间的速度差产生的所述记录纸张(P)的回路程度; 用于控制定影单元的输送速度的CPU; 用于检测定影单元的使用量的定影传送传感器; 以及用于存储由定影传送传感器检测到的定影单元的使用量的信息的EEPROM。 CPU基于存储在EEPROM中的定影单元的使用量的信息和环路传感器的检测结果来控制定影单元的传送速度。
    • 3. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20100310288A1
    • 2010-12-09
    • US12794958
    • 2010-06-07
    • Kenji TakagiTakashi Yano
    • Kenji TakagiTakashi Yano
    • G03G15/20
    • G03G15/2025
    • An image forming apparatus includes an image forming apparatus comprising: an image forming station for forming an unfixed toner image on a recording material; a fixing station for fixing the unfixed toner image on the recording material, the fixing station including a rotatable member for forming a fixing nip for nipping and feeding the recording material, and a cleaner, movable toward and away from the rotatable member, for cleaning the rotatable member, wherein the apparatus is operable in a blankless image formation mode for forming the toner image without blank at least at one of a leading end and a trailing end of the recording material, and wherein the cleaner is contacted to the rotatable member at timing at which a portion of the rotatable member to which a blankless range at the leading end or the trailing end of the recording material contact reaches a position where the portion opposes the cleaner, and wherein the cleaner spaces from the rotatable member in a period in which a portion of the rotatable member to which a range other than the blankless range contact passes the position where the portion opposes the cleaner.
    • 图像形成装置包括图像形成装置,包括:图像形成站,用于在记录材料上形成未定影的调色剂图像; 用于将未定影的调色剂图像定影在记录材料上的定影站,所述定影站包括用于形成用于夹持和馈送记录材料的定影辊隙的可旋转构件,以及可朝向和远离可旋转构件移动的清洁器,用于清洁 可旋转构件,其中所述装置可操作为无空白图像形成模式,用于在记录材料的至少一个前端和后端中的至少一个处形成无空白的调色剂图像,并且其中所述清洁器在定时与所述可旋转构件接触 其中可旋转构件的在记录材料接触的前端或尾端处的无空白范围的部分到达该部分与吸尘器相对的位置,并且其中在可旋转构件的清洁空间中, 可旋转构件的除了无空隙范围接触之外的范围通过其中该部分与清洁器相对的位置的部分。
    • 4. 发明授权
    • Image fixing apparatus
    • 图像定影装置
    • US07599637B2
    • 2009-10-06
    • US12179077
    • 2008-07-24
    • Hideo NanatakiTakashi NomuraKenji Takagi
    • Hideo NanatakiTakashi NomuraKenji Takagi
    • G03G15/20
    • G03G15/2042
    • A fixing apparatus includes a control circuit which controls the electrifying to a first heater so that a temperature detected by a first temperature detection portion reaches a first target temperature and controls the electrifying to a second heater so that a temperature detected by a second temperature detection portion reaches a second target temperature, when warm-up is initiated, and, when the warm-up initiated, if an initial temperature of a rotary member is below a predetermined temperature, the control circuit sets the first target temperature to a temperature value greater than the first target temperature set when the initial temperature of the rotary member is greater than the predetermined temperature and sets the second target temperature to a temperature value greater than the second target temperature set when the initial temperature of the rotary member is greater than the predetermined temperature. In this way, hot offset and poor fixing can be prevented and a pre-heating operation time can be prevented from extending excessively.
    • 定影装置包括:控制电路,其控制对第一加热器通电,使得由第一温度检测部分检测的温度达到第一目标温度,并控制向第二加热器通电,使得由第二温度检测部分检测的温度 当预热开始时达到第二目标温度,并且当预热启动时,如果旋转构件的初始温度低于预定温度,则控制电路将第一目标温度设定为大于 当所述旋转构件的初始温度大于所述预定温度时设定的所述第一目标温度,并且将所述第二目标温度设定为大于当所述旋转构件的初始温度大于所述预定温度时设定的所述第二目标温度的温度值 。 这样,能够防止热偏移和固定不良,能够防止预热运转时间过度延长。
    • 5. 发明申请
    • Optical disc apparatus and tracking error signal selecting method
    • 光盘装置和跟踪误差信号选择方法
    • US20070076546A1
    • 2007-04-05
    • US11527619
    • 2006-09-27
    • Tatsuro ShimizuKenji Takagi
    • Tatsuro ShimizuKenji Takagi
    • G11B7/00
    • G11B7/0906G11B2007/0006
    • An optical disc apparatus comprises a driving unit which drives an optical pickup head (PUH) for irradiating laser light onto an optical disc in such a manner that laser light is irradiated onto a plurality of positions on the optical disc, a photodetector unit which outputs a photo sense signal on the basis of the reflected light from the optical disc onto which laser light is irradiated from the PUH, a signal generating unit which generates tracking error signals of a plurality of different methods on the basis of the photo sense signal, and a tracking error signal selecting unit which selects a tracking error signal of any one of the methods on the basis of the state of the tracking error signals of the plurality of methods generated in a plurality of different positions on the disc.
    • 光盘装置包括驱动单元,其驱动用于将激光照射到光盘上的光学拾取头(PUH),使得激光照射到光盘上的多个位置,光检测器单元输出 基于来自从PUH照射激光的光盘的反射光的光感测信号,基于感光信号产生多种不同方法的跟踪误差信号的信号生成单元,以及 跟踪误差信号选择单元,其基于在盘上的多个不同位置中生成的多个方法的跟踪误差信号的状态来选择任一方法的跟踪误差信号。
    • 7. 发明授权
    • Cleaning unit and image forming apparatus
    • 清洁单元和成像设备
    • US08750749B2
    • 2014-06-10
    • US13428196
    • 2012-03-23
    • Akimichi SuzukiShinsuke KobayashiKenji Takagi
    • Akimichi SuzukiShinsuke KobayashiKenji Takagi
    • G03G21/10G03G15/16
    • G03G15/168G03G2215/0132
    • An image forming apparatus includes a rotatable member-to-be-cleaned having elasticity; a cleaning member, having elasticity, for removing a deposited matter deposited on the member-to-be-cleaned; and a supporting portion for supporting the cleaning member so that the cleaning member swings around a swing fulcrum. The swing fulcrum of the supporting portion is provided so that a force exerted from the member-to-be-cleaned onto the cleaning member with respect to a direction along a tangential line where the cleaning member and the member-to-be-cleaned contact each other during movement of the member-to-be-cleaned has a vector component in a direction in which the cleaning member is moved away from the member-to-be-cleaned.
    • 图像形成装置包括具有弹性的可旋转待清洗构件; 清洁构件,具有弹性,用于去除沉积在待清洗构件上的沉积物; 以及用于支撑清洁构件的支撑部分,使得清洁构件绕摆动支点摆动。 支撑部分的摆动支点被设置成使得从待清洁部件施加到清洁部件上的力相对于沿清洁部件和被清洁部件的切线的方向 在要清洁的构件的移动期间彼此相对的方向上的向量分量沿着清洁构件移动远离待清洁构件的方向。
    • 8. 发明授权
    • Handoff method comprising network control apparatus that receives data packets from both the core network and the other network control apparatus wherein said received data packets will be transformed into wireless data
    • 切换方法包括从核心网络和另一个网络控制装置接收数据分组的网络控制装置,其中所述接收的数据分组将被转换成无线数据
    • US07751820B2
    • 2010-07-06
    • US11628046
    • 2005-03-17
    • Hidenori IshiiKenji Takagi
    • Hidenori IshiiKenji Takagi
    • H04W36/00
    • H04W36/10H04W92/14H04W92/22
    • There are a wireless access network comprising a radio network gateway apparatus (101), radio access network control apparatus (102a), (102b) and a base stations (103a), (103b) and a terminal (104) accommodated in the wireless access network and when the terminal (104) enters into a new cell B, a packet data is transmitted from the source radio access network control apparatus (102a) to the target radio access network control apparatus (102b). Further, when the terminal (104) switches the radio access network control apparatus (102) with which the terminal (104) communicates, the target radio access network control apparatus (102b) switches a transmission line of a data to be transmitted to the terminal (104) from a wireless data to a packet data in the source radio access network control apparatus (102a), and from the source packet data to a target packet data in a synchronized manner at each timing. This reduces traffic which occurs when switching a radio access network control apparatus to be communicated while the terminal moves between cells and prevent packet interruption in a wireless access network providing packet transmission service.
    • 存在无线接入网络,包括无线网络网关装置(101),无线接入网络控制装置(102a),(102b)以及基站(103a),(103b)和容纳在无线接入中的终端 网络,并且当终端(104)进入新小区B时,从源无线接入网络控制装置(102a)向目标无线接入网络控制装置(102b)发送分组数据。 此外,当终端(104)切换与终端(104)通信的无线接入网络控制装置(102)时,目标无线接入网络控制装置(102b)将要发送的数据的传输线切换到终端 (104)从无线数据到源无线接入网络控制装置(102a)中的分组数据,并且在每个定时以同步的方式从源分组数据到目标分组数据。 这减少了当终端在小区之间移动时切换要通信的无线接入网络控制装置发生的业务,并且防止在提供分组传输服务的无线接入网络中的分组中断。
    • 9. 发明申请
    • IMAGE FIXING APPARATUS
    • 图像固定装置
    • US20090028590A1
    • 2009-01-29
    • US12179077
    • 2008-07-24
    • Hideo NanatakiTakashi NomuraKenji Takagi
    • Hideo NanatakiTakashi NomuraKenji Takagi
    • G03G15/20
    • G03G15/2042
    • A fixing apparatus includes a control circuit which controls the electrifying to a first heater so that a temperature detected by a first temperature detection portion reaches a first target temperature and controls the electrifying to a second heater so that a temperature detected by a second temperature detection portion reaches a second target temperature, when warm-up is initiated, and, when the warm-up initiated, if an initial temperature of a rotary member is below a predetermined temperature, the control circuit sets the first target temperature to a temperature value greater than the first target temperature set when the initial temperature of the rotary member is greater than the predetermined temperature and sets the second target temperature to a temperature value greater than the second target temperature set when the initial temperature of the rotary member is greater than the predetermined temperature. In this way, hot offset and poor fixing can be prevented and a pre-heating operation time can be prevented from extending excessively.
    • 定影装置包括:控制电路,其控制对第一加热器通电,使得由第一温度检测部分检测的温度达到第一目标温度,并控制向第二加热器通电,使得由第二温度检测部分检测的温度 当预热开始时达到第二目标温度,并且当预热启动时,如果旋转构件的初始温度低于预定温度,则控制电路将第一目标温度设定为大于 当所述旋转构件的初始温度大于所述预定温度时设定的所述第一目标温度,并且将所述第二目标温度设定为大于当所述旋转构件的初始温度大于所述预定温度时设定的所述第二目标温度的温度值 。 这样,能够防止热偏移和固定不良,能够防止预热运转时间过度延长。