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1. 发明授权

US07574159B2 Image forming apparatus and method of preventing carrier from adhering to photo receptor 有权
标题翻译：图像形成装置及防止载体粘附于光感受器的方法
公开(公告)号：US07574159B2
公开(公告)日：2009-08-11
申请号：US11371074
申请日：2006-03-09
申请人： Jeong-jai Choi
发明人： Jeong-jai Choi
IPC分类号： G03G21/00
CPC分类号： G03G21/06
摘要： An image forming apparatus and a method of preventing a carrier from adhering to a photosensitive drum are provided. The image forming apparatus includes a photosensitive drum on which an electrostatic latent image is formed by an exposure unit, a main motor which rotates the photosensitive drum, an eraser unit which removes a potential charged on the photosensitive drum, and a controller which controls the eraser unit to remove a potential of the photosensitive drum while the photosensitive drum rotates due to an inertial force after the main motor stops rotating.
摘要翻译：提供了一种图像形成装置和防止载体粘附到感光鼓的方法。图像形成装置包括：感光鼓，通过曝光单元形成静电潜像;旋转感光鼓的主电动机;消除感光鼓上充电的电位的橡皮擦单元;以及控制橡皮擦的控制器单元，以在主电机停止转动之后由于惯性力而使感光鼓旋转时去除感光鼓的电位。

2. 发明授权

US07333763B2 Developer collecting apparatus and an image forming apparatus having the same 失效
标题翻译：显影剂收集装置和具有该收集装置的图像形成装置
公开(公告)号：US07333763B2
公开(公告)日：2008-02-19
申请号：US11198315
申请日：2005-08-08
申请人： Jeong-Jai Choi
发明人： Jeong-Jai Choi
IPC分类号： G03G21/10
CPC分类号： G03G21/105
摘要： Disclosed is a developer collecting apparatus capable of preventing a developer collected from a photoconductive medium from clotting while being supplied to a developing unit. The developer collecting apparatus includes a developer collecting container including an inlet for inflow of a developer removed from a photoconductive medium by a cleaning member, and an outlet for discharge of the developer. The developer collecting apparatus also includes a developer storing container connected to the developer collecting container through a transport pipe and a vibration unit for preventing the developer from clotting and accumulating at the outlet of the developer collecting container and in the transport pipe.
摘要翻译：公开了一种显影剂收集装置，其能够防止从光电导介质收集的显影剂在被供应到显影单元时凝结。显影剂收集装置包括显影剂收集容器，该显影剂收集容器包括用于通过清洁部件流入从光导介质除去的显影剂的入口和用于排出显影剂的出口。显影剂收集装置还包括通过输送管连接到显影剂收集容器的显影剂储存容器和用于防止显影剂在显影剂收集容器的出口处和输送管中凝结和积聚的振动单元。

3. 发明申请

US20060245770A1 Apparatus and method for displaying toner residual quantity 有权
标题翻译：显示调色剂剩余量的装置和方法
公开(公告)号：US20060245770A1
公开(公告)日：2006-11-02
申请号：US11411105
申请日：2006-04-26
申请人： Jeong-Jai Choi
发明人： Jeong-Jai Choi
IPC分类号： G03G15/00 , G03G15/08
CPC分类号： G03G15/502 , G03G15/0856 , G03G15/556
摘要： An apparatus and a method that displays a toner residual quantity includes: a calculation unit calculating a first prediction of toner residual quantity according to a dot count of printing data and calculating a second prediction of toner residual quantity according to a total actuating time of a toner supply motor; a determination unit determining whether the second prediction toner residual quantity is within a predetermined range of the first prediction toner residual quantity; and a user interface unit displaying the second prediction of toner residual quantity based on the determined result. A remaining amount value is displayed so that a user is informed of a toner replacement time.
摘要翻译：显示调色剂剩余量的装置和方法包括：计算单元，根据打印数据的点数计算调色剂剩余量的第一预测，并根据调色剂的总动作时间计算调色剂剩余量的第二预测供应电机; 确定单元，确定第二预测调色剂剩余量是否在第一预测调色剂剩余量的预定范围内; 以及基于所确定的结果显示调色剂剩余量的第二预测的用户界面单元。显示剩余量值，以便向用户通知调色剂更换时间。

4. 发明申请

US20060222391A1 Method and apparatus for controlling transfer voltage in image forming device 审中-公开
标题翻译：用于控制图像形成装置中的转印电压的方法和装置
公开(公告)号：US20060222391A1
公开(公告)日：2006-10-05
申请号：US11388969
申请日：2006-03-27
申请人： Jeong-jai Choi
发明人： Jeong-jai Choi
IPC分类号： G03G15/16
CPC分类号： G03G15/1675 , G03G2215/00763
摘要： A method of and apparatus for controlling a transfer voltage in an electro-photographic image forming apparatus. A transfer roller resistance between a transfer roller and a photosensitive drum is detected with a constant voltage applied to the transfer roller in a state where the photosensitive drum and the transfer roller form a transfer nip. A paper resistance among the transfer roller, a paper, and the photosensitive drum is detected when the constant voltage is applied to the transfer roller while the paper approaches the transfer nip of the transfer roller. A paper type is determined and a transfer voltage is selectively applied to the transfer roller based on the detected transfer roller and paper resistances. Reference tables are stored in a memory to aid in determining the paper type and the applied transfer voltage.
摘要翻译：一种用于控制电子照相图像形成装置中的转印电压的方法和装置。在感光鼓和转印辊形成转印辊隙的状态下，以转印辊施加的恒定电压来检测转印辊和感光鼓之间的转印辊电阻。当纸张接近转印辊的转印辊隙时，当转印辊上施加恒定电压时，检测转印辊，纸张和感光鼓之间的纸张电阻。确定纸张类型，并且基于检测到的转印辊和纸张电阻将转印电压选择性地施加到转印辊。参考表存储在存储器中以帮助确定纸张类型和所施加的转印电压。

5. 发明授权

US07092648B2 Method of controlling an amount of toner charging in an electrophotographic image forming apparatus and apparatus using the same 有权
标题翻译：控制电子照相图像形成装置中的调色剂充电量的方法及使用其的装置
公开(公告)号：US07092648B2
公开(公告)日：2006-08-15
申请号：US10834102
申请日：2004-04-29
申请人： Jeong-jai Choi
发明人： Jeong-jai Choi
IPC分类号： G03G15/08 , G03G15/09
CPC分类号： G03G15/0848 , G03G2215/0607
摘要： A method of controlling an amount of toner charging in an electrophotographic image forming apparatus using a two-component developing agent, and an apparatus using the method. The method includes counting an agitation time when a toner and a carrier are mixed and are agitated in an agitation region of a developing unit, and if the agitation time reaches a predetermined reference agitation time, supplying a predetermined amount of new toner to the agitation region to prevent overcharging of the toner.
摘要翻译：使用双组分显影剂的电子照相成像设备中控制调色剂带电量的方法和使用该方法的设备。该方法包括：当调色剂和载体混合并在显影单元的搅拌区域中搅拌时计算搅拌时间，并且如果搅拌时间达到预定的参考搅拌时间，则向搅拌区域供应预定量的新调色剂以防止调色剂过度充电。

6. 发明申请

US20060018673A1 Image forming apparatus and a method thereof for supplying toner 有权
公开(公告)号：US20060018673A1
公开(公告)日：2006-01-26
申请号：US11148189
申请日：2005-06-09
申请人： Jeong-jai Choi
发明人： Jeong-jai Choi
IPC分类号： G03G15/08
CPC分类号： G03G15/0893 , G03G15/0853 , G03G15/0868 , G03G2215/0609 , G03G2215/0819 , G03G2215/0844 , G03G2215/0888
摘要： An image forming apparatus and method including a developing cartridge mounted in a main body of the image forming apparatus to receive a developer with a certain space occupancy of the developer with respect to an inner capacity thereof; a developer supply part connected to the developing cartridge to supply the developer; a sensor for detecting an amount of the developer in the developing cartridge; and a control part for controlling the developer supply part to restrict an amount of the developer for supply to the developing cartridge according to the amount of the developer detected by the sensor, thereby maintaining the space occupancy of the developer in the developing cartridge. Accordingly, the developer supplied to the developing cartridge can be in a certain range of space occupancy during printing, and as a result, density of the developer in a developing area can be uniform.

7. 发明申请

US20050089341A1 Electrophotographic image-forming apparatus using two-component developer and print density control method thereof 有权
标题翻译：使用双组分显影剂的电子照相图像形成装置及其印刷密度控制方法
公开(公告)号：US20050089341A1
公开(公告)日：2005-04-28
申请号：US10860061
申请日：2004-06-04
申请人： Jeong-Jai Choi
发明人： Jeong-Jai Choi
IPC分类号： G03G21/00 , G03G15/00 , G03G15/02 , G03G15/06 , G03G15/10
CPC分类号： G03G15/0266 , G03G15/0208 , G03G2215/02 , G03G2215/0634
摘要： An electrophotographic image-forming apparatus using a two-component developer and a print density control are provided. An electrophotographic image-forming apparatus and method using a two-component developer comprises a charging roller for charging a surface of a photosensitive medium at a predetermined potential; a developing unit for developing with a developer an electrostatic latent image formed on the photosensitive medium; a control unit for determining a developing bias voltage to be applied to a developing roller of the developing unit in relation to a print density level selected by a predetermined selection unit out of a plurality of print density levels set in varying degrees, calculating a surface potential of the photosensitive medium charged by the charging roller, and controlling a charging voltage to be applied to the charging roller in order that an absolute value of a potential difference between the determined developing bias voltage and calculated surface potential becomes higher than a predetermined potential; and a charging voltage adjustment unit controlled by the control unit, and for variably adjusting the charging voltage to be applied to the charging roller.
摘要翻译：提供了使用双组分显影剂和印刷浓度控制的电子照相成像设备。使用双组分显影剂的电子照相成像设备和方法包括用于以预定电位对感光介质的表面进行充电的充电辊; 显影单元，用于用显影剂显影形成在感光介质上的静电潜像; 控制单元，用于根据以不同程度设定的多个打印浓度级别中的预定选择单元选择的打印浓度水平来确定要施加到显影单元的显影辊的显影偏压，计算表面电位并控制施加到充电辊上的充电电压，使得所确定的显影偏压与计算的表面电位之间的电位差的绝对值变得高于预定电位; 以及由控制单元控制的充电电压调节单元，并且用于可变地调节要施加到充电辊的充电电压。

8. 发明申请

US20100061747A1 CHARGING VOLTAGE CONTROL METHOD OF IMAGE FORMING APPARATUS USING CONSTANT VOLTAGE CONTROL AND IMAGE FORMING APPARATUS THEREOF 有权
标题翻译：使用恒定电压控制和图像形成装置的图像形成装置的充电电压控制方法
公开(公告)号：US20100061747A1
公开(公告)日：2010-03-11
申请号：US12494600
申请日：2009-06-30
申请人： Jeong-Jai CHOI
发明人： Jeong-Jai CHOI
IPC分类号： G03G15/02
CPC分类号： G03G15/0266
摘要： A charging voltage control method of an image forming apparatus and an image forming apparatus thereof. The charging voltage control method of the image forming apparatus includes: applying a charging voltage amount determined by referring to a basic lookup table which determines the charging voltage based on a system load; and correcting the applied charging voltage by using a first correction value which is determined based on a first correction lookup table which determines the first correction value based on a difference between a target current corresponding to the lifespan of the charging roller and a charging current.
摘要翻译：一种图像形成装置的充电电压控制方法及其图像形成装置。图像形成装置的充电电压控制方法包括：施加基于系统负载来确定充电电压的基本查找表确定的充电电压量; 以及通过使用基于第一校正查找表确定的第一校正值来校正所施加的充电电压，所述第一校正查找表基于与充电辊的寿命相对应的目标电流与充电电流之间的差确定第一校正值。

9. 发明申请

US20090074443A1 CHARGING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME 有权
标题翻译：充电装置和使用它的图像形成装置
公开(公告)号：US20090074443A1
公开(公告)日：2009-03-19
申请号：US12125200
申请日：2008-05-22
申请人： Jeong-jai CHOI
发明人： Jeong-jai CHOI
IPC分类号： G03G15/02
CPC分类号： G03G15/0283 , G03G2215/025
摘要： A charging apparatus includes a charging member to charge a surface of a photoconductive medium, a power unit to supply an electric power as a bias voltage to the charging member, and a resistor unit to reduce a ripple on the surface of the charging member. Accordingly, a stability of the charging apparatus is secured without using a separate power device.
摘要翻译：充电装置包括：充电构件，用于对光导介质的表面充电;电源单元，用于向充电构件提供作为偏置电压的电力;以及电阻器单元，用于减少充电构件表面上的纹波。因此，在不使用单独的电力装置的情况下，确保充电装置的稳定性。

10. 发明授权

US07398037B2 Process cartridge usable with an image forming apparatus and including a shutter 失效
标题翻译：可与图像形成装置一起使用并包括快门的处理盒
公开(公告)号：US07398037B2
公开(公告)日：2008-07-08
申请号：US11226245
申请日：2005-09-15
申请人： Jeong-jai Choi
发明人： Jeong-jai Choi
IPC分类号： G03G15/08
CPC分类号： G03G15/0886 , G03G15/0877 , G03G2215/067 , G03G2221/1815
摘要： A process cartridge usable with an image forming apparatus includes a developing cartridge including a toner inlet and a shutter to open and close the toner inlet, and a toner cartridge detachably mounted to the developing cartridge and including a toner supply port to correspond with the toner inlet when connected with the developing cartridge. The shutter may be moved in a direction in which the toner cartridge is connected when the toner cartridge is connected to the developing cartridge, thereby opening the toner inlet, and the shutter may be moved in a direction in which the toner cartridge is detached when the toner cartridge is separated from the developing cartridge, thereby closing the toner inlet. Accordingly, when the toner cartridge is separated from the developing cartridge, the toner inlet of the developing cartridge is closed, thereby preventing leakage of toner through the toner inlet.
摘要翻译：可与图像形成装置一起使用的处理盒包括：显影盒，其包括调色剂入口和用于打开和关闭调色剂入口的快门;以及可拆卸地安装到显影盒的调色剂盒，并且包括调色剂供给口以对应于调色剂入口当与显影盒连接时。当调色剂盒连接到显影盒时，快门可以沿着调色剂盒连接的方向移动，从而打开调色剂入口，并且当色粉盒分离的方向上可以使挡板移动调色剂盒与显影盒分离，从而关闭调色剂入口。因此，当调色剂盒与显影盒分离时，显影盒的调色剂入口被关闭，从而防止调色剂通过调色剂入口泄漏。

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