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91. 发明申请

US20180253048A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180253048A1
公开(公告)日：2018-09-06
申请号：US15628905
申请日：2017-06-21
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA TEC KABUSHIKI KAISHA
发明人： Taishi TAKANO
IPC分类号： G03G15/08
CPC分类号： G03G15/505 , G03G15/0848 , G03G15/0887 , G03G15/5004 , G03G15/5008 , G03G15/5045
摘要： According to an embodiment, an image forming apparatus includes a developing device including a toner receiving portion configured to contain toner and a movable part moveable at a first speed and a second speed, the moveable part at least partially disposed within the toner receiving portion, a temperature sensor disposed adjacent to the developing device, and a control unit operatively coupled to the temperature sensor and the developing device, wherein the control unit controls the movable part to move at a first speed when the temperature sensor detects a temperature less than a first temperature and controls the movable part to move at a second speed lower than the first speed when the detected temperature is less than a second temperature that is greater than the first temperature.

92. 发明申请

US20170364011A1 ROTATING MEMBER CONTROL DEVICE, CONVEYING DEVICE, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20170364011A1
公开(公告)日：2017-12-21
申请号：US15621342
申请日：2017-06-13
申请人： Takafumi SEKI , Hiromichi MATSUDA
发明人： Takafumi SEKI , Hiromichi MATSUDA
IPC分类号： G03G15/00 , H04N1/00 , B65H7/14
CPC分类号： G03G15/5008 , B65H7/14 , G03G15/1615 , G03G15/505 , G03G15/6558 , G03G2215/00599 , G03G2215/00679 , G03G2215/00945 , H04N1/00602
摘要： A rotating member control device that controls a first rotating member and a second rotating member to convey a sheet includes a processor configured to execute a program to implement processes of controlling the first rotating member and the second rotating member to come into contact or be separated from each other and acquiring a value that corresponds to or is proportional to a driving torque of a first driving unit that rotationally drives the first rotating member. The processor acquires the value upon separation when the first rotating member and the second rotating member are separated from each other and upon conveyance when the sheet is held between and conveyed by the first rotating member and the second rotating member. The processor further sets a rotational speed of the second rotating member such that the value acquired upon separation and the value acquired upon conveyance become equal.

93. 发明授权

US09625711B2 Optical scanning apparatus and image forming device 有权
公开(公告)号：US09625711B2
公开(公告)日：2017-04-18
申请号：US13718514
申请日：2012-12-18
申请人： Naoto Watanabe , Toshiaki Tokita , Kohji Sakai , Nobuaki Kubo , Masayuki Muranaka
发明人： Naoto Watanabe , Toshiaki Tokita , Kohji Sakai , Nobuaki Kubo , Masayuki Muranaka
IPC分类号： G02B26/12 , B41J2/47
CPC分类号： B41J2/473 , B41J2/471 , G02B26/123 , G02B26/127 , G02B26/129 , G03G15/043 , G03G15/505
摘要： An optical scanning apparatus includes a light source, an optical deflector having a rotary polygon mirror to deflect a light beam from the light source, a scanning optical system configured to focus the light beam deflected by the optical deflector on a target surface, a sync detecting sensor configured to determine a write start timing on the target surface, and a processing unit configured to correct detection data of the sync detecting sensor based on a measured value of a time needed for one revolution of the rotary polygon mirror.

94. 发明申请

US20170082953A1 Image Forming Apparatus 审中-公开
公开(公告)号：US20170082953A1
公开(公告)日：2017-03-23
申请号：US15267761
申请日：2016-09-16
申请人： Konica Minolta, Inc.
发明人： Satoshi Ogata , Yumiko Izumiya , Jun Onishi
IPC分类号： G03G15/00
CPC分类号： G03G21/0005 , G03G15/1615 , G03G15/5008 , G03G15/505 , G03G2215/00075
摘要： An image forming apparatus includes an image carrier, an image carrier driver which rotates the image carrier, a rotation detector which detects rotation of the image carrier, a rotary member in contact with the image carrier, a rotary member driver which rotates the rotary member, a first controller which controls the rotary member driver, and a second controller. The second controller controls the image carrier driver based on an output of the rotation detector and also controls the image carrier driver in a manner which attenuates a fluctuation component at a specific frequency. When the first controller changes a surface velocity of the rotary member, the second controller controls the image carrier driver in a manner that attenuates a fluctuation component at a specific frequency related to the changed surface velocity of the rotary member.

95. 发明申请

US20160370740A1 IMAGE FORMING APPARATUS 审中-公开
标题翻译：图像形成装置
公开(公告)号：US20160370740A1
公开(公告)日：2016-12-22
申请号：US15176462
申请日：2016-06-08
申请人： KONICA MINOLTA, INC.
发明人： YUJI KOBAYASHI , HARUMITSU FUJIMORI , HIROSHI HIRAGUCHI , SATOSHI CHIKAZAWA , TAKAKI KATO
IPC分类号： G03G15/20
CPC分类号： G03G15/652 , G03G15/505 , G03G2215/00455 , G03G2215/0135 , G03G2215/2045
摘要： An image forming apparatus that transfers an image from an image carrier onto a sheet passing between the image carrier rotating and a transfer member includes a fixing unit configured to thermally fix the image on the sheet while nipping and conveying the sheet with a pair of fixing members after the transfer, at least one of the fixing members rotating; a measuring unit configured to measure surface movement speed of the sheet in a non-contact manner while the sheet is being conveyed by the fixing members; and a control unit configured to control rotation speed of the fixing members in accordance with a result of the measurement, to adjust speed of conveyance of the sheet to a target speed determined beforehand for peripheral speed of the image carrier, the control being performed while the sheet being conveyed is in contact with the transfer member and the fixing members.
摘要翻译：一种图像形成装置，其将图像从图像载体传送到通过图像载体旋转和转印构件之间的片材上，包括：定影单元，其被构造成在夹持并且用一对固定构件传送片材的同时将图像热固定在片材上; 在传送之后，至少一个固定构件旋转; 测量单元，其构造成在片材被固定构件传送的同时以非接触方式测量片材的表面移动速度; 以及控制单元，其被配置为根据测量结果控制固定构件的转速，将片材的传送速度调整为预先为图像载体的圆周速度确定的目标速度，所述控制是在被输送的片材与转印部件和固定部件接触。

96. 发明授权

US09389546B2 Image forming apparatus with intermediate toner transfer medium, control method therefor, and storage medium storing control program therefor 有权
公开(公告)号：US09389546B2
公开(公告)日：2016-07-12
申请号：US14740648
申请日：2015-06-16
申请人： CANON KABUSHIKI KAISHA
发明人： Takashi Birumachi
IPC分类号： G03G15/00 , G03G15/01 , G03G15/16
CPC分类号： G03G15/1615 , G03G15/5008 , G03G15/5033 , G03G15/505 , G03G2215/00075 , G03G2215/0129
摘要： An image forming apparatus that is capable of reducing velocity fluctuation due to variation of friction torque between an image bearing member and an intermediate transfer medium depending on a toner image. An exposure unit forms a latent image on the image bearing member rotated by a first drive unit. A development unit develops the latent image to form a toner image. A primary transfer unit transfers the toner image to an intermediate transfer medium rotated by a second drive unit. A secondary transfer unit transfers the toner image to a sheet. A control unit controls the drive units so that a peripheral velocity difference between the image bearing member and the intermediate transfer medium becomes a first value at starting, and controls so that the peripheral velocity difference becomes a second value larger than the first value when minute toner reaches the position of the primary transfer unit.

97. 发明授权

US09134669B2 Image forming apparatus having exposure operation control 有权
标题翻译：具有曝光操作控制的图像形成装置
公开(公告)号：US09134669B2
公开(公告)日：2015-09-15
申请号：US13956914
申请日：2013-08-01
申请人： Takashi Suzuki
发明人： Takashi Suzuki
IPC分类号： G03G15/00 , G03G15/043
CPC分类号： G03G15/505 , G03G15/043 , G03G15/5008 , G03G15/6564 , G03G2215/00721
摘要： An image forming apparatus is provided that includes a controller configured to perform an acquiring operation of acquiring an exposure completion time point when an exposure operation of exposing a photoconductive body using image data has been completed and a trailing-end detecting time point when a detector has detected a trailing end of a sheet, and a determining operation of determining whether a developer image would be transferred outside the sheet, based on the exposure completion time point and the trailing-end detecting time point acquired in the acquiring operation, a transfer time period required for an arbitrary point on the photoconductive body to move to a transfer position from an exposure position, and a conveyance time period required for a trailing end of the sheet to move to the transfer position since the detector detects the trailing end of the sheet.
摘要翻译：提供了一种图像形成装置，其包括：控制器，被配置为当使用图像数据曝光光电导体的曝光操作已经完成时，执行获取曝光完成时间点的获取操作;以及当检测器具有的后端检测时间点检测到纸张的尾端，以及基于在获取操作中获取的曝光完成时间点和后端检测时间点，确定显影剂图像是否将被转印到纸张外部的确定操作，转印时间段由于检测器检测到纸张的后端，光导体上的任意点需要从曝光位置移动到转印位置，并且纸张后端移动到转印位置所需的输送时间段。

98. 发明授权

US09110408B1 Adjusting tone reproduction curve and belt tension to control printing errors 有权
标题翻译：调节色调再现曲线和皮带张力以控制打印错误
公开(公告)号：US09110408B1
公开(公告)日：2015-08-18
申请号：US14188047
申请日：2014-02-24
申请人： XEROX CORPORATION
发明人： David C. Craig , David R. Kretschmann , Eliud Robles Flores , Jorge M. Rodriguez
IPC分类号： G03G15/00 , G03G15/16
CPC分类号： G03G15/1615 , G03G15/505 , G03G15/754
摘要： When performing a printing operation, methods and devices automatically increase a marking material quantity setting when an excessive speed variation condition of a transfer surface is present and an excessive background marking condition is absent. Alternatively, the methods and devices automatically increase tension of the transfer surface and decrease a marking material quantity setting when the excessive speed variation condition is present and the excessive background marking condition is also present. Otherwise, these methods and devices automatically provide a message on the graphic user interface of a printing device when the excessive speed variation condition is present, the marking material quantity setting is at a marking material quantity maximum setting, and the tension of the transfer surface is at a tension maximum. The message provides instructions to use a different type media or initiate a service call.
摘要翻译：当执行打印操作时，当存在转印表面的过大速度变化条件并且不存在过度的背景标记条件时，方法和装置自动地增加标记材料量设置。或者，当存在过大的速度变化条件并且也存在过度的背景标记条件时，这些方法和装置自动增加转印表面的张力并减少标记材料量设定。否则，当存在过大的速度变化条件时，这些方法和装置在打印装置的图形用户界面上自动提供消息，标记材料数量设置处于标记材料量最大设置，并且转印表面的张力为处于最大张力。该消息提供使用不同类型媒体或启动服务呼叫的指令。

99. 发明授权

US09086666B2 Image forming apparatus having a control unit that controls an image bearing member 有权
标题翻译：图像形成装置具有控制图像承载部件的控制单元
公开(公告)号：US09086666B2
公开(公告)日：2015-07-21
申请号：US14108914
申请日：2013-12-17
申请人： CANON KABUSHIKI KAISHA
发明人： Junya Takatsu
IPC分类号： G03G15/00 , G03G15/16
CPC分类号： G03G15/505 , G03G15/1615 , G03G2215/0129
摘要： An image forming apparatus includes an intermediate transfer member configured to rotate an image bearing member by contacting and operating the image bearing member, an image bearing member drive unit configured to drive the image bearing member, a control unit configured to output a torque instruction value to the image bearing member drive unit to control an assist torque generated by the image bearing member drive unit, and a measurement unit configured to measure a maximum speed and a minimum speed of the surface of the image bearing member, wherein the control unit controls the image bearing member drive unit using a new torque instruction value determined based on torque instruction values respectively corresponding to a maximum speed and a minimum speed when controlling the image bearing member drive unit so that the maximum speed and the minimum speed are included in a range.
摘要翻译：图像形成装置包括：中间转印部件，被配置为通过接触和操作图像承载部件来旋转图像承载部件;图像承载部件驱动单元，构造成驱动图像承载部件;控制单元，被配置为输出转矩指令值图像承载部件驱动单元，用于控制由图像承载部件驱动单元产生的辅助扭矩;以及测量单元，被配置为测量图像承载部件的表面的最大速度和最小速度，其中控制单元控制图像轴承构件驱动单元，其使用基于在控制图像承载构件驱动单元时分别对应于最大速度和最小速度的转矩指令值确定的新的转矩指令值，使得最大速度和最小速度包括在一个范围内。

100. 发明授权

US09081344B2 Image forming apparatus with intermediate toner transfer medium, control method therefor, and storage medium storing control program therefor 有权
标题翻译：具有中间调色剂转印介质的图像形成装置，其控制方法和存储其控制程序的存储介质
公开(公告)号：US09081344B2
公开(公告)日：2015-07-14
申请号：US13869077
申请日：2013-04-24
申请人： CANON KABUSHIKI KAISHA
发明人： Takashi Birumachi
IPC分类号： G03G15/00
CPC分类号： G03G15/1615 , G03G15/5008 , G03G15/5033 , G03G15/505 , G03G2215/00075 , G03G2215/0129
摘要： An image forming apparatus that is capable of reducing velocity fluctuation due to variation of friction torque between an image bearing member and an intermediate transfer medium depending on a toner image. An exposure unit forms a latent image on the image bearing member rotated by a first drive unit. A development unit develops the latent image to form a toner image. A primary transfer unit transfers the toner image to an intermediate transfer medium rotated by a second drive unit. A secondary transfer unit transfers the toner image to a sheet. A control unit controls the drive units so that a peripheral velocity difference between the image bearing member and the intermediate transfer medium becomes a first value at starting, and controls so that the peripheral velocity difference becomes a second value larger than the first value when minute toner reaches the position of the primary transfer unit.
摘要翻译：一种图像形成装置，其能够根据调色剂图像减少由于图像承载部件和中间转印介质之间的摩擦转矩的变化引起的速度波动。曝光单元在由第一驱动单元旋转的图像承载部件上形成潜像。显影单元显影潜像以形成调色剂图像。一次转印单元将调色剂图像转印到由第二驱动单元旋转的中间转印介质。二次转印单元将调色剂图像转印到纸张上。控制单元控制驱动单元，使得图像承载构件和中间转印介质之间的圆周速度差在启动时变为第一值，并且当微调色剂在周边速度差变为比第一值大的第二值时进行控制到达主转印单元的位置。

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