公开(公告)号：US08165498B2

公开(公告)日：2012-04-24

申请号：US12230134

申请日：2008-08-25

申请人： Seiji Hoshino ,  Toshiyuki Andoh ,  Takashi Hodoshima ,  Takashi Hashimoto ,  Hidetaka Noguchi ,  Tatsuhiko Oikawa

发明人： Seiji Hoshino ,  Toshiyuki Andoh ,  Takashi Hodoshima ,  Takashi Hashimoto ,  Hidetaka Noguchi ,  Tatsuhiko Oikawa

IPC分类号： G03G15/08

CPC分类号： G03G15/1685 ,  G03G15/6594 ,  G03G2215/00481 ,  G03G2215/00738 ,  G03G2215/1614

摘要： An image forming device is disclosed that is able to enlarge a gap of a nipping portion with a simple and inexpensive structure, and able to reduce impact when a front end of a recording sheet runs into or a back end of the recording sheet passes through the nipping portion. The image forming device includes an image carrying unit, an image forming unit, a transfer unit, a conveyance unit, a determination unit that determines whether a thickness of the recording sheet is greater than a threshold value, and a cam member that rotates to enlarge or reduce the gap of the nipping portion between the image carrying unit and the transfer unit according to rotational positions of the cam member. When the thickness of the recording sheet is greater than the threshold, the cam member rotates so that the gap of the nipping portion is enlarged.

摘要翻译： 公开了一种图像形成装置，其能够以简单且便宜的结构扩大夹持部分的间隙，并且能够在记录纸张的前端进入记录纸张的后端或通过记录纸张的后端时减小冲击 咬合部分。 图像形成装置包括图像承载单元，图像形成单元，转印单元，输送单元，确定记录纸的厚度是否大于阈值的确定单元和旋转以放大的凸轮构件 或者根据凸轮构件的旋转位置减小图像承载单元和转印单元之间的夹持部分的间隙。 当记录纸的厚度大于阈值时，凸轮构件旋转，使得夹持部分的间隙扩大。

公开(公告)号：US08010027B2

公开(公告)日：2011-08-30

申请号：US12461945

申请日：2009-08-28

申请人： Takashi Hodoshima ,  Toshiyuki Andoh ,  Seiji Hoshino ,  Takashi Hashimoto ,  Hidetaka Noguchi

发明人： Takashi Hodoshima ,  Toshiyuki Andoh ,  Seiji Hoshino ,  Takashi Hashimoto ,  Hidetaka Noguchi

IPC分类号： G03G15/20

CPC分类号： G03G15/1615

摘要： An image forming apparatus includes an image transfer belt, a first pressure member, a second pressure member, and an adjustable tension member. The image transfer belt is trained around multiple rollers for rotation along an endless belt travel path to convey an image for transfer to a recording sheet. The first pressure member is disposed on an outer surface of the image transfer belt. The second pressure member is disposed on an inner surface of the image transfer belt opposite the first pressure member. The first and second pressure members define an image transfer gap therebetween. The adjustable tension member is disposed on the image transfer belt adjacent the image transfer gap to adjust tension on the image transfer belt when the recording sheet enters and exits the image transfer gap.

摘要翻译： 图像形成装置包括图像转印带，第一压力构件，第二压力构件和可调节张力构件。 图像转印带围绕多个辊子进行训练，以沿着环形带行进路径旋转以传送图像以转印到记录片材。 第一压力构件设置在图像转印带的外表面上。 第二压力构件设置在与第一压力构件相对的图像转印带的内表面上。 第一和第二压力构件限定了它们之间的图像转移间隙。 可调张力构件设置在邻近图像转印间隙的图像转印带上，以当记录纸进入和离开图像转印间隙时调节图像转印带上的张力。

公开(公告)号：US07971878B2

公开(公告)日：2011-07-05

申请号：US12320868

申请日：2009-02-06

申请人： Takashi Hashimoto ,  Toshiyuki Andoh ,  Takashi Hodoshima ,  Seiji Hoshino ,  Hidetaka Noguchi ,  Tatsuhiko Oikawa

发明人： Takashi Hashimoto ,  Toshiyuki Andoh ,  Takashi Hodoshima ,  Seiji Hoshino ,  Hidetaka Noguchi ,  Tatsuhiko Oikawa

IPC分类号： B65H5/02 ,  B65H5/04

CPC分类号： G03G15/1605 ,  G03G15/0131 ,  G03G15/6564 ,  G03G2215/00409 ,  G03G2215/00599 ,  G03G2215/0129 ,  G03G2215/0154 ,  G03G2215/1695

摘要： A sheet conveying device includes a torque estimation unit that, based upon a first load torque generated at a time that a sheet-like member passes through a first nip between a first driving roller and a first driven roller of an upstream sheet conveying unit, estimates a second load torque generated at a time that the sheet-like member passes through a second nip between a second driving roller and a second driven roller of a downstream sheet conveying unit; and a control unit that controls the driving torque such that the second load torque is counterbalanced by applying a counterbalancing torque in synchronization with a timing of entry of the sheet-like member into the second nip.

摘要翻译： 片材输送装置包括扭矩估计单元，其基于在片状构件通过上游片材输送单元的第一驱动辊和第一从动辊之间的第一辊隙时产生的第一负载扭矩，估计 在片状构件通过下游片材输送单元的第二驱动辊和第二从动辊之间的第二压合时产生的第二负载扭矩; 以及控制单元，其控制驱动转矩，使得通过与片状构件进入第二压区的定时同步地施加平衡转矩来平衡第二负载转矩。

公开(公告)号：US07945176B2

公开(公告)日：2011-05-17

申请号：US11744352

申请日：2007-05-04

申请人： Seiji Hoshino ,  Takashi Hashimoto ,  Toshiyuki Andoh ,  Tatsuhiko Oikawa

发明人： Seiji Hoshino ,  Takashi Hashimoto ,  Toshiyuki Andoh ,  Tatsuhiko Oikawa

IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G15/20

CPC分类号： G03G15/167 ,  G03G2215/1614

摘要： An image forming apparatus includes an image carrier that carries an image and rotates, a transfer member that rotates in contact with the image carrier and transfers an image formed on the image carrier to a recording medium, a conveying unit that conveys the recording medium to a contact position where the image carrier and the transfer member come into contact with each other, and a gap forming unit that forms a gap between the image carrier and the transfer member at the contact position. The gap forming unit forms the gap immediately before the recording medium enters the contact position.

摘要翻译： 图像形成装置包括承载图像并旋转的图像载体，与图像载体接触旋转的转印构件，将形成在图像载体上的图像转印到记录介质上，将记录介质传送到 图像载体和转印构件彼此接触的接触位置;以及间隙形成单元，其在接触位置处在图像载体和转印构件之间形成间隙。 间隙形成单元在记录介质进入接触位置之前形成间隙。

公开(公告)号：US07696713B2

公开(公告)日：2010-04-13

申请号：US11684991

申请日：2007-03-12

申请人： Makoto Komatsu ,  Toshiyuki Andoh ,  Yoshihiro Sakai

发明人： Makoto Komatsu ,  Toshiyuki Andoh ,  Yoshihiro Sakai

IPC分类号： G05B11/14

CPC分类号： H02P6/15

摘要： Driving of a pulse motor is controlled in such a manner that a rotating body driven by the pulse motor rotates at a uniform angular velocity. Angular displacement of the rotating body is detected, a difference between a detection value of the angular displacement and a target value of angular displacement set in advance is calculated, and a drive pulse frequency of a drive pulse signal to be used for driving the pulse motor is calculated based on the difference and a reference drive pulse frequency. Whether the difference is added to the reference drive pulse can be selected.

摘要翻译： 控制脉冲电动机的驱动，使得由脉冲电动机驱动的旋转体以均匀的角速度旋转。 检测旋转体的角位移，计算角位移的检测值与预先设定的角位移的目标值之间的差异，驱动脉冲电机的驱动脉冲信号的驱动脉冲频率 基于差和基准驱动脉冲频率计算。 可以选择是否将差值加到参考驱动脉冲。

公开(公告)号：US07576509B2

公开(公告)日：2009-08-18

申请号：US10937447

申请日：2004-09-10

申请人： Makoto Komatsu ,  Toshiyuki Andoh ,  Yoshihiro Sakai

发明人： Makoto Komatsu ,  Toshiyuki Andoh ,  Yoshihiro Sakai

IPC分类号： G05B19/10

CPC分类号： H02P6/15

摘要： Driving of a pulse motor is controlled in such a manner that a rotating body driven by the pulse motor rotates at a uniform angular velocity. Angular displacement of the rotating body is detected, a difference between a detection value of the angular displacement and a target value of angular displacement set in advance is calculated, and a drive pulse frequency of a drive pulse signal to be used for driving the pulse motor is calculated based on the difference and a reference drive pulse frequency. Whether the difference is added to the reference drive pulse can be selected.

摘要翻译： 控制脉冲电动机的驱动，使得由脉冲电动机驱动的旋转体以均匀的角速度旋转。 检测旋转体的角位移，计算角位移的检测值与预先设定的角位移的目标值之间的差异，驱动脉冲电机的驱动脉冲信号的驱动脉冲频率 基于差和基准驱动脉冲频率计算。 可以选择是否将差值加到参考驱动脉冲。

公开(公告)号：US20070152622A1

公开(公告)日：2007-07-05

申请号：US11684991

申请日：2007-03-12

申请人： Makoto KOMATSU ,  Toshiyuki Andoh ,  Yoshihiro Sakai

发明人： Makoto KOMATSU ,  Toshiyuki Andoh ,  Yoshihiro Sakai

IPC分类号： G05B19/40

CPC分类号： H02P6/15

摘要： Driving of a pulse motor is controlled in such a manner that a rotating body driven by the pulse motor rotates at a uniform angular velocity. Angular displacement of the rotating body is detected, a difference between a detection value of the angular displacement and a target value of angular displacement set in advance is calculated, and a drive pulse frequency of a drive pulse signal to be used for driving the pulse motor is calculated based on the difference and a reference drive pulse frequency. Whether the difference is added to the reference drive pulse can be selected.

摘要翻译： 控制脉冲电动机的驱动，使得由脉冲电动机驱动的旋转体以均匀的角速度旋转。 检测旋转体的角位移，计算角位移的检测值与预先设定的角位移的目标值之间的差异，驱动脉冲电机的驱动脉冲信号的驱动脉冲频率 基于差和基准驱动脉冲频率计算。 可以选择是否将差值加到参考驱动脉冲。

公开(公告)号：US6031633A

公开(公告)日：2000-02-29

申请号：US892065

申请日：1997-07-14

申请人： Toshiyuki Andoh ,  Mikio Kamoshita ,  Minoru Takahashi ,  Tomiko Takahashi

发明人： Toshiyuki Andoh ,  Mikio Kamoshita ,  Minoru Takahashi ,  Tomiko Takahashi

IPC分类号： G03G21/14 ,  G03G15/04 ,  G05D3/12 ,  H02P29/00 ,  H04N1/047 ,  H04N1/10 ,  H04N1/193 ,  H04N1/36

CPC分类号： H04N1/1026 ,  G03G15/04 ,  H04N1/0473 ,  H04N1/1043 ,  H04N1/1048 ,  H04N1/1052 ,  G03G15/043 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/0471 ,  H04N2201/04725 ,  H04N2201/04734 ,  H04N2201/04755 ,  H04N2201/04794

摘要： An original image reading apparatus comprises an exposure optical system including a scanner optical system which can perform go and return operations, a scanner driving motor which drives said scanner optical system, velocity detecting means for detecting a moving velocity of said scanner optical system and position detecting means for detecting the position of said scanner optical system. In the apparatus, return control is performed which is control of returning said scanner optical system after an original image reading scan has been finished. A target velocity is calculated from a residual distance from a current position of said scanner optical system to a target reference position. Target acceleration is used as feedforward. Velocity control is performed so that detected velocity follows the target velocity.

摘要翻译： 一种原始图像读取装置，包括：曝光光学系统，包括能够执行返回操作的扫描仪光学系统;驱动所述扫描光学系统的扫描仪驱动电机;检测所述扫描光学系统的移动速度的速度检测装置; 用于检测所述扫描仪光学系统的位置的装置。 在该装置中，执行返回控制，该控制是在原始图像读取扫描完成之后返回所述扫描仪光学系统的控制。 从从所述扫描仪光学系统的当前位置到目标参考位置的剩余距离计算目标速度。 目标加速度用作前馈。 执行速度控制，使得检测到的速度跟随目标速度。

公开(公告)号：US08385762B2

公开(公告)日：2013-02-26

申请号：US12461905

申请日：2009-08-27

申请人： Hidetaka Noguchi ,  Toshiyuki Andoh ,  Takashi Hodoshima ,  Seiji Hoshino ,  Takashi Hashimoto

发明人： Hidetaka Noguchi ,  Toshiyuki Andoh ,  Takashi Hodoshima ,  Seiji Hoshino ,  Takashi Hashimoto

IPC分类号： G03G15/06 ,  G03G15/00

CPC分类号： G03G15/1605 ,  G03G15/0194 ,  G03G15/657

摘要： A transfer roller lies opposite to a supporting roller across an image carrying belt and abuts against the outer surface of the image carrying belt to form a transfer nip. A driving force transmission unit transmits driving force from a driving source to a driving roller. A drive control unit performs drive control of the driving source. A feedforward control unit performs feedforward control on the driving source via the drive control unit. An entry detecting unit detects entry of a sheet in the transfer nip. The feedforward control unit considers an entry detection signal output by the entry sensor as a trigger for performing feedforward control after a predetermined time.

摘要翻译： 转印辊与支撑辊相对，穿过图像承载带并抵靠图像承载带的外表面以形成转印辊隙。 驱动力传递单元将来自驱动源的驱动力传递到驱动辊。 驱动控制单元执行驱动源的驱动控制。 前馈控制单元通过驱动控制单元对驱动源进行前馈控制。 入口检测单元检测转印辊隙中纸张的进入。 前馈控制单元将入口传感器输出的入口检测信号视为在预定时间之后执行前馈控制的触发。

公开(公告)号：US08254811B2

公开(公告)日：2012-08-28

申请号：US12379505

申请日：2009-02-24

申请人： Toshiyuki Andoh ,  Takashi Hashimoto ,  Takashi Hodoshima ,  Hidetaka Noguchi ,  Seiji Hoshino ,  Tatsuhiko Oikawa ,  Tetsuo Watanabe

发明人： Toshiyuki Andoh ,  Takashi Hashimoto ,  Takashi Hodoshima ,  Hidetaka Noguchi ,  Seiji Hoshino ,  Tatsuhiko Oikawa ,  Tetsuo Watanabe

IPC分类号： G03G15/00 ,  G03G15/08

CPC分类号： G03G15/0131 ,  G03G15/1605 ,  G03G15/161 ,  G03G2215/00738 ,  G03G2215/0154 ,  G03G2215/0158

摘要： An image-carrier driving unit drives an image carrier. An image forming unit forms an image on the image carrier. A moving-member driving unit drives a moving member that is movable towards and away from the image carrier. A detecting unit detects a position of the moving member at predetermined sampling times while the moving member is moving. A movement control unit performs a feedback control on the moving-member driving unit such that a detection result of the detecting unit follows a target value corresponding to each of the predetermined sampling times when the moving member moves while the image forming unit is forming the image on the image carrier.

摘要翻译： 图像载体驱动单元驱动图像载体。 图像形成单元在图像载体上形成图像。 移动构件驱动单元驱动能够朝向和远离图像载体移动的移动构件。 检测单元在移动构件移动时以预定的采样次数检测移动构件的位置。 移动控制单元对移动构件驱动单元执行反馈控制，使得当图像形成单元正在形成图像时，检测单元的检测结果遵循与移动构件移动时的每个预定采样次数相对应的目标值 在图像载体上。