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公开(公告)号：US20090010683A1
公开(公告)日：2009-01-08
申请号：US12165852
申请日：2008-07-01
CPC分类号： G03G15/0921 , G03G15/0812 , G03G15/0928
摘要： A developing device includes a developing roller and a blade. The developing roller includes: a developing sleeve which rotates while holding two-component developer composed of toner and magnetic carrier on the outer surface having a plurality of grooves extending in parallel to an axis of the rotation; and a magnetic member, provided inside the developing sleeve in such a manner as to be unrotatable, for attracting the two-component developer onto the outer surface of the developing sleeve. The blade is provided outside the rotating sleeve with a gap from the outer surface of the developing sleeve for scraping off a part of the two-component developer on the outer surface of the developing sleeve. Also, the magnetic member includes a magnet for controlling magnetic flux density in the gap to range from 70 mT to 150 mT. This allows preventing image degradation caused by generation of development memory.
摘要翻译： 显影装置包括显影辊和刮板。 显影辊包括：显影套筒，其在外表面上保持由调色剂和磁性载体构成的双组分显影剂而旋转，其具有平行于旋转轴线延伸的多个凹槽; 以及磁性构件，其设置在显影套筒内部以使其不可旋转的方式用于将双组分显影剂吸引到显影套筒的外表面上。 叶片设置在旋转套筒的外部，与显影套筒的外表面间隔开，以刮除显影套筒外表面上的一部分双组分显影剂。 此外，磁性构件包括用于将间隙中的磁通密度控制在70mT至150mT范围内的磁体。 这允许防止由于生成开发内存而导致的图像劣化。
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2.发明申请Developing device, image forming apparatus including the same and developing method 有权显影装置，包括其的成像装置和显影方法公开(公告)号：US20090010669A1
公开(公告)日：2009-01-08
申请号：US12217449
申请日：2008-07-03
IPC分类号： G03G15/00
CPC分类号： G03G15/0851 , G03G15/0853
摘要： The change in an output voltage when a control voltage is changed is calculated, and the change in the control voltage divided by the calculated change in the output voltage is defined as a sensitivity coefficient. The sensitivity coefficient is recalculated for each predetermined time interval or whenever a predetermined condition is satisfied, and the control voltage is corrected based on the recalculated sensitivity coefficient. Example of the predetermined condition include the time of start-up of the apparatus, the time at which the accumulated number of printed sheets reaches a predetermined number, and the time of carrying out process control.
摘要翻译： 计算控制电压变化时的输出电压的变化，将控制电压除以计算出的输出电压的变化量的变化定义为灵敏度系数。 每个预定时间间隔或每当满足预定条件时重新计算灵敏度系数，并且基于重新计算的灵敏度系数校正控制电压。 预定条件的示例包括装置的启动时间，累计打印的纸张数达到预定数量的时间以及进行处理控制的时间。
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3.发明授权Developing device and image forming apparatus having a developing roller with a grooved sleeve 有权显影装置和图像形成装置具有带有凹槽的显影辊公开(公告)号：US07769327B2
公开(公告)日：2010-08-03
申请号：US12165852
申请日：2008-07-01
IPC分类号： G03G15/09
CPC分类号： G03G15/0921 , G03G15/0812 , G03G15/0928
摘要： A developing device includes a developing roller and a blade. The developing roller includes: a developing sleeve which rotates while holding two-component developer composed of toner and magnetic carrier on the outer surface having a plurality of grooves extending in parallel to an axis of the rotation; and a magnetic member, provided inside the developing sleeve in such a manner as to be unrotatable, for attracting the two-component developer onto the outer surface of the developing sleeve. The blade is provided outside the rotating sleeve with a gap from the outer surface of the developing sleeve for scraping off a part of the two-component developer on the outer surface of the developing sleeve. Also, the magnetic member includes a magnet for controlling magnetic flux density in the gap to range from 70 mT to 150 mT. This allows preventing image degradation caused by generation of development memory.
摘要翻译： 显影装置包括显影辊和刮板。 显影辊包括：显影套筒，其在外表面上保持由调色剂和磁性载体构成的双组分显影剂而旋转，其具有平行于旋转轴线延伸的多个凹槽; 以及磁性构件，其设置在显影套筒内部以使其不可旋转的方式用于将双组分显影剂吸引到显影套筒的外表面上。 叶片设置在旋转套筒的外部，与显影套筒的外表面间隔开，以刮除显影套筒外表面上的一部分双组分显影剂。 此外，磁性构件包括用于将间隙中的磁通密度控制在70mT至150mT范围内的磁体。 这允许防止由于生成开发内存而导致的图像劣化。
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公开(公告)号：US20090010662A1
公开(公告)日：2009-01-08
申请号：US12135531
申请日：2008-06-09
CPC分类号： G03G15/55 , G03G15/5004 , G03G15/5087 , G03G21/203 , G03G2215/0132 , G03G2215/0838
摘要： An image forming apparatus that includes: an image forming portion for forming an image in accordance with image data contained in an input command; and a controller for controlling the image forming portion, and is constructed such that the controller includes: a mode switch for switching the image forming portion from a standby mode in which image forming is instantly enabled into a power-saving mode in which power supply to the image forming portion is partially stopped when no subsequent command has been received after a predetermined period elapsed from when image forming portion was operated last; a mode restoring portion for restoring the image forming portion from power-saving mode to standby mode when a subsequent command is received; and an image quality controller for performing image quality control of the image every time a predetermined time elapsed from when the image forming portion was last operated, and the image quality controller starts execution of the image quality control before the mode restoring portion restores the image forming portion from the power-saving mode to the standby mode.
摘要翻译： 一种图像形成装置，包括：图像形成部分，用于根据包含在输入命令中的图像数据形成图像; 以及控制器，用于控制图像形成部分，并且被构造成使得控制器包括：模式开关，用于将图像形成部分从立即启用图像形成的待机模式切换到功率保存模式，其中向 当从最后一次操作图像形成部分起经过的预定时间段之后，当没有接收到后续命令时，图像形成部分被部分地停止; 模式恢复部分，用于当接收到后续命令时，将图像形成部分从功率节省模式恢复到待机模式; 以及图像质量控制器，用于每当从上一次操作图像形成部分起经过预定时间时执行图像的图像质量控制，并且图像质量控制器在模式恢复部分恢复图像形成之前开始执行图像质量控制 从省电模式到待机模式。
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5.发明授权Developing device, image forming apparatus including the same and developing method 有权显影装置，包括其的成像装置和显影方法公开(公告)号：US08249481B2
公开(公告)日：2012-08-21
申请号：US12217449
申请日：2008-07-03
IPC分类号： G03G15/00
CPC分类号： G03G15/0851 , G03G15/0853
摘要： The change in an output voltage when a control voltage is changed is calculated, and the change in the control voltage divided by the calculated change in the output voltage is defined as a sensitivity coefficient. The sensitivity coefficient is recalculated for each predetermined time interval or whenever a predetermined condition is satisfied, and the control voltage is corrected based on the recalculated sensitivity coefficient. Example of the predetermined condition include the time of start-up of the apparatus, the time at which the accumulated number of printed sheets reaches a predetermined number, and the time of carrying out process control.
摘要翻译： 计算控制电压变化时的输出电压的变化，将控制电压除以计算出的输出电压的变化量的变化定义为灵敏度系数。 每个预定时间间隔或每当满足预定条件时重新计算灵敏度系数，并且基于重新计算的灵敏度系数校正控制电压。 预定条件的示例包括装置的启动时间，累计打印的纸张数达到预定数量的时间以及进行处理控制的时间。
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公开(公告)号：US07826755B2
公开(公告)日：2010-11-02
申请号：US12334332
申请日：2008-12-12
申请人： Hiroo Naoi , Kohichi Takenouchi , Mitsuru Tokuyama , Kiyofumi Morimoto , Kazuma Hinoue , Tomoki Minamikawa
发明人： Hiroo Naoi , Kohichi Takenouchi , Mitsuru Tokuyama , Kiyofumi Morimoto , Kazuma Hinoue , Tomoki Minamikawa
CPC分类号： G03G15/5008 , G03G15/0126 , G03G15/065
摘要： An image forming apparatus capable of performing monochrome printing and color printing in which all the developing units share a single development transformer is constructed such that at the time of monochrome printing the photoreceptor drums for colors are stopped rotating while all the developing units are constantly applied with a high voltage. Further, the cumulative operation time in which the black photoreceptor drum has been operated for monochrome printing is calculated so that the color-printing photoreceptor drums which are stopped during monochrome printing are rotationally driven by a predetermined angle when the cumulative operation time exceeds predetermined fixed time. Thus, the surface of each color-printing photoreceptor drum that is being worn is restored by making the fresh surface of the drum oppose the associated color developing unit, whereby it is possible to prevent occurrence of defects on the surface of each photoreceptor drum.
摘要翻译： 一种能够进行单色打印和彩色打印的图像形成装置，其中所有显影单元共享单个显影变压器被构造成使得在单色打印时，用于颜色的感光鼓被停止旋转，同时所有显影单元始终被施加 高电压。 此外，计算黑色感光鼓已经用于单色打印的累积操作时间，使得当累积操作时间超过预定的固定时间时，在单色打印期间停止的彩色感光鼓被旋转地驱动预定角度 。 因此，通过使滚筒的新鲜表面与相关联的彩色显影单元相对地恢复正在磨损的每个彩色印刷感光鼓的表面，从而可以防止每个感光鼓的表面上出现缺陷。
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公开(公告)号：US07817934B2
公开(公告)日：2010-10-19
申请号：US12135531
申请日：2008-06-09
CPC分类号： G03G15/55 , G03G15/5004 , G03G15/5087 , G03G21/203 , G03G2215/0132 , G03G2215/0838
摘要： An image forming apparatus that includes: an image forming portion for forming an image in accordance with image data contained in an input command; and a controller for controlling the image forming portion, and is constructed such that the controller includes: a mode switch for switching the image forming portion from a standby mode in which image forming is instantly enabled into a power-saving mode in which power supply to the image forming portion is partially stopped when no subsequent command has been received after a predetermined period elapsed from when image forming portion was operated last; a mode restoring portion for restoring the image forming portion from power-saving mode to standby mode when a subsequent command is received; and an image quality controller for performing image quality control of the image every time a predetermined time elapsed from when the image forming portion was last operated, and the image quality controller starts execution of the image quality control before the mode restoring portion restores the image forming portion from the power-saving mode to the standby mode.
摘要翻译： 一种图像形成装置，包括：图像形成部分，用于根据包含在输入命令中的图像数据形成图像; 以及控制器，用于控制图像形成部分，并且被构造成使得控制器包括：模式开关，用于将图像形成部分从立即启用图像形成的待机模式切换到功率保存模式，其中向 当从最后一次操作图像形成部分起经过的预定时间段之后，当没有接收到后续命令时，图像形成部分被部分地停止; 模式恢复部分，用于当接收到后续命令时，将图像形成部分从功率节省模式恢复到待机模式; 以及图像质量控制器，用于每当从上一次操作图像形成部分起经过预定时间时，对图像执行图像质量控制，并且图像质量控制器在模式恢复部分恢复图像形成之前开始执行图像质量控制 从省电模式到待机模式。
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公开(公告)号：US20090175635A1
公开(公告)日：2009-07-09
申请号：US12334332
申请日：2008-12-12
申请人： Hiroo Naoi , Kohichi Takenouchi , Mitsuru Tokuyama , Kiyofumi Morimoto , Kazuma Hinoue , Tomoki Minamikawa
发明人： Hiroo Naoi , Kohichi Takenouchi , Mitsuru Tokuyama , Kiyofumi Morimoto , Kazuma Hinoue , Tomoki Minamikawa
IPC分类号： G03G15/00
CPC分类号： G03G15/5008 , G03G15/0126 , G03G15/065
摘要： An image forming apparatus capable of performing monochrome printing and color printing in which all the developing units share a single development transformer is constructed such that at the time of monochrome printing the photoreceptor drums for colors are stopped rotating while all the developing units are constantly applied with a high voltage. Further, the cumulative operation time in which the black photoreceptor drum has been operated for monochrome printing is calculated so that the color-printing photoreceptor drums which are stopped during monochrome printing are rotationally driven by a predetermined angle when the cumulative operation time exceeds predetermined fixed time. Thus, the surface of each color-printing photoreceptor drum that is being worn is restored by making the fresh surface of the drum oppose the associated color developing unit, whereby it is possible to prevent occurrence of defects on the surface of each photoreceptor drum.
摘要翻译： 一种能够进行单色打印和彩色打印的图像形成装置，其中所有显影单元共享单个显影变压器被构造成使得在单色打印时，用于颜色的感光鼓被停止旋转，同时所有显影单元始终被施加 高电压。 此外，计算黑色感光鼓已经用于单色打印的累积操作时间，使得当累积操作时间超过预定的固定时间时，在单色打印期间停止的彩色感光鼓被旋转地驱动预定角度 。 因此，通过使滚筒的新鲜表面与相关联的彩色显影单元相对地恢复正在磨损的每个彩色印刷感光鼓的表面，从而可以防止每个感光鼓的表面上出现缺陷。
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公开(公告)号：US20080103257A1
公开(公告)日：2008-05-01
申请号：US11930561
申请日：2007-10-31
CPC分类号： G03G21/0017 , C08L27/18 , C08L67/025 , C08L2666/04
摘要： In an image forming apparatus comprising a charging section, an exposure section, a developing section, a transfer section, a peeling section, a cleaning section including a cleaning blade, and a fixing section, the cleaning blade is composed by dispersing 15 parts by weight through 33 parts by weight of fluorine resin particulate and secondary particles thereof into 100 parts by weight of a synthetic resin of a base material and, on a surface of the cleaning blade 16a, and a number of the secondary particles of the fluorine resin particulate having a particle diameter of 0.5 μm or more existing in unit area of 100 μm2 is made to be 50 or less.
摘要翻译： 在包括充电部分，曝光部分，显影部分，转印部分，剥离部分，包括清洁刮板的清洁部分和固定部分的图像形成装置中，清洁刮板由15重量份 通过将33重量份的氟树脂颗粒和二次颗粒加入到100重量份的基材的合成树脂中，并且在清洁刮板16a的表面上和多个氟树脂颗粒的二次颗粒 以100umum 2的单位面积存在的粒径为0.5μm以上的粒径为50以下。
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公开(公告)号：US07981585B2
公开(公告)日：2011-07-19
申请号：US11930561
申请日：2007-10-31
IPC分类号： G03G21/00
CPC分类号： G03G21/0017 , C08L27/18 , C08L67/025 , C08L2666/04
摘要： In an image forming apparatus comprising a charging section, an exposure section, a developing section, a transfer section, a peeling section, a cleaning section including a cleaning blade, and a fixing section, the cleaning blade is composed by dispersing 15 parts by weight through 33 parts by weight of fluorine resin particulate and secondary particles thereof into 100 parts by weight of a synthetic resin of a base material and, on a surface of the cleaning blade 16a, and a number of the secondary particles of the fluorine resin particulate having a particle diameter of 0.5 μm or more existing in unit area of 100 μm2 is made to be 50 or less.
摘要翻译： 在包括充电部，曝光部，显影部，转印部，剥离部，包括清洁刮板的清洁部和固定部的图像形成装置中，清洁刮板由15重量份 通过将33重量份的氟树脂颗粒和二次颗粒加入到100重量份的基材的合成树脂中，并且在清洁刮板16a的表面上，并且多个氟树脂颗粒的二次颗粒具有 以单位面积100μm存在的粒径为0.5μm以上的粒径为50以下。
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