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1. 发明授权

US08712262B2 Image forming apparatus with static elimination 有权
标题翻译：具有静电消除的成像装置
公开(公告)号：US08712262B2
公开(公告)日：2014-04-29
申请号：US13259309
申请日：2010-04-15
申请人： Akinori Nishida , Takahiro Sasai , Shu Ikezaki
发明人： Akinori Nishida , Takahiro Sasai , Shu Ikezaki
IPC分类号： G03G15/16
CPC分类号： G03G15/657 , G03G2215/00649
摘要： An image forming apparatus that prevents transfer defects such as the occurrence of white spots includes a photoreceptor drum, a transfer roller, a transfer bias application circuit that applies a transfer bias to the transfer roller, a static elimination needle that eliminates static of a recording paper, a static elimination bias application circuit that applies a static elimination bias to the static elimination needle, and a printer controller. The printer controller controls the static elimination bias application circuit so that a potential difference between the static elimination needle and the recording paper during the period from when a front end region of the recording paper passes by the static elimination needle until when a front end of the recording paper comes into contact with a conveyance guide becomes smaller than the potential difference during the period that the front end region of the recording paper passes by the static elimination needle.
摘要翻译：防止诸如发生白点的转印缺陷的图像形成装置包括感光鼓，转印辊，向转印辊施加转印偏压的转印偏压施加电路，消除记录纸静电的静电消除针，对静电消除针施加静电消除偏压的静电消除偏压施加电路和打印机控制器。打印机控制器控制静电消除偏差施加电路，使得在从记录纸的前端区域通过静电消除针之前到当前位置处的静电消除针和记录纸之间的电位差记录纸与输送引导件接触变得小于记录纸的前端区域通过静电消除针的期间的电位差。

2. 发明申请

US20120014705A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20120014705A1
公开(公告)日：2012-01-19
申请号：US13259309
申请日：2010-04-15
申请人： Akinori Nishida , Takahiro Sasai , Shu Ikezaki
发明人： Akinori Nishida , Takahiro Sasai , Shu Ikezaki
IPC分类号： G03G15/16
CPC分类号： G03G15/657 , G03G2215/00649
摘要： An image forming apparatus that prevents transfer defects such as the occurrence of white spots. includes a photoreceptor drum, a transfer roller, a transfer bias application circuit that applies a transfer bias to the transfer roller a static elimination needle that eliminates static of a recording paper, a static elimination bias application circuit that applies a static elimination bias to the static elimination needle, and a printer controller. The printer controller controls the static elimination bias application circuit so that a potential difference between the static elimination needle and the recording paper during the period from when a front end region of the recording paper passes by the static elimination needle until when a front end of the recording paper comes into contact with a conveyance guide becomes smaller than the potential difference during the period that the front end region of the recording paper passes by the static elimination needle.
摘要翻译：防止诸如发生白点的转印缺陷的图像形成装置。包括感光鼓，转印辊，转印偏压施加电路，其向转印辊施加消除记录纸静电的静电消除针的转印偏压;静电消除偏置施加电路，其将静电消除偏压施加于静电消除针和打印机控制器。打印机控制器控制静电消除偏差施加电路，使得在从记录纸的前端区域通过静电消除针之前到当前位置处的静电消除针和记录纸之间的电位差记录纸与输送引导件接触变得小于记录纸的前端区域通过静电消除针的期间的电位差。

3. 发明授权

US07664409B2 Image forming device 有权
标题翻译：图像形成装置
公开(公告)号：US07664409B2
公开(公告)日：2010-02-16
申请号：US11857893
申请日：2007-09-19
申请人： Akinori Nishida , Takahiro Sasai
发明人： Akinori Nishida , Takahiro Sasai
IPC分类号： G03G15/08
CPC分类号： G03G15/5008 , G03G15/0849 , G03G15/0853 , G03G2215/0888
摘要： A control device executes toner concentration control that controls an operation of a developing device such that a value of detection output detected by a concentration detecting device falls within a predetermined range. Moreover, when controlling drive of a first driving device, which drives at least an image carrier, and drive of a second driving device, which drives at least a fuser device, the control device executes operation control that starts the drive of the first driving device before the drive of the second driving device.
摘要翻译：控制装置执行调色剂浓度控制，其控制显影装置的操作，使得由浓度检测装置检测的检测输出的值落在预定范围内。此外，当控制驱动至少图像载体的第一驱动装置的驱动和至少驱动定影装置的第二驱动装置的驱动时，控制装置执行开始第一驱动装置的驱动的操作控制在第二驱动装置的驱动之前。

4. 发明授权

US06308022B1 Image forming apparatus and warming up method 有权
标题翻译：成像设备和预热方法
公开(公告)号：US06308022B1
公开(公告)日：2001-10-23
申请号：US09602676
申请日：2000-06-26
申请人： Takahiro Sasai
发明人： Takahiro Sasai
IPC分类号： G03G1520
CPC分类号： G03G15/2003
摘要： A warm-up completion temperature (temp 2) of an electro-photographic type printer is set to be lower than a stand-by temperature (temp 3). When a temperature detector detects that a temperature of a fuser reaches the warm-up completion temperature, then a controller ends the warm-up operation. The warm-up time between the turning on of power and the completion of the machine's warm-up operation is thus reduced. An amount of power required for the warm-up operation is also reduced.
摘要翻译：电照相型打印机的预热完成温度（温度2）设定为低于待机温度（温度3）。当温度检测器检测到定影器的温度达到预热完成温度时，控制器结束预热操作。因此，电源接通和机器预热操作完成之间的预热时间减少了。预热操作所需的功率也减少了。

5. 发明申请

US20120163835A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
标题翻译：图像形成装置和图像形成方法
公开(公告)号：US20120163835A1
公开(公告)日：2012-06-28
申请号：US13392591
申请日：2010-08-13
申请人： Takahiro Sasai , Yuji Suzuki , Yoshitaka Taruno
发明人： Takahiro Sasai , Yuji Suzuki , Yoshitaka Taruno
IPC分类号： G03G15/00
CPC分类号： G03G15/0225 , G03G15/0258 , G03G15/0291 , G03G2215/027
摘要： When printing, an image forming apparatus determines, based on a threshold voltage corresponding to a print speed during printing, whether or not a corona wire of a charger needs to be cleaned. On the basis of whether or not a monitoring voltage corresponding to a current value of a charged bias, which is applied to the corona wire by a charged-bias high-voltage power supply, is equal to or more than a predetermined threshold voltage corresponding to the print speed during printing, the image forming apparatus determines whether or not the corona wire needs to be cleaned.
摘要翻译：当打印时，图像形成装置基于与打印期间的打印速度相对应的阈值电压来确定是否需要清洁充电器的电晕丝。基于对应于通过充电偏压高压电源施加到电晕线的充电偏压的当前值的监视电压是否等于或大于对应于打印期间的打印速度，图像形成装置确定是否需要清洁电晕丝。

6. 发明授权

US07286777B2 Image forming device with cleaning sequence process for returning toner adhered on transfer roller back to photoconductive drum 有权
标题翻译：具有清洁顺序处理的图像形成装置，用于将粘附在转印辊上的调色剂返回到感光鼓
公开(公告)号：US07286777B2
公开(公告)日：2007-10-23
申请号：US10838592
申请日：2004-05-04
申请人： Takahiro Sasai
发明人： Takahiro Sasai
IPC分类号： G03G15/02
CPC分类号： G03G15/50 , G03G15/04072 , G03G15/0435 , G03G2215/0404 , G03G2221/0005
摘要： An image forming device includes an image forming unit that includes an image carrier which carries an electrostatic latent image, a developing unit which forms a developing nip by contacting with the image carrier and develops the latent image by using toner, a transfer unit which forms a transferring nip by contacting with the image carrier and transfers a toner image onto a recording paper, and a first driving unit which rotates the image carrier, the developing unit and the transfer unit. The image forming device also includes a laser scanner unit that includes a polygon mirror and a second driving unit which rotates the polygon mirror. In addition, the image forming device includes a first control unit that starts driving of the second driving unit at a same time as a start of driving of the first driving unit, and a second control unit that executes a cleaning sequence process to return toner adhered on the transfer unit back to the image carrier during a period from the start of the driving of the second driving unit until a print permitting signal is output by the laser scanner unit.
摘要翻译：图像形成装置包括：图像形成单元，其包括承载静电潜像的图像载体;显影单元，其通过与图像载体接触形成显影夹持部并通过使用调色剂显影潜像;转印单元，通过与图像载体接触并将调色剂图像转印到记录纸上;以及第一驱动单元，其使图像载体，显影单元和转印单元旋转。图像形成装置还包括激光扫描器单元，其包括多面镜和旋转多面镜的第二驱动单元。此外，图像形成装置包括：第一控制单元，其在与第一驱动单元的驱动开始同时开始驱动第二驱动单元;第二控制单元，执行清洁顺序处理以返回调色剂附着在从第二驱动单元的驱动开始的一段时间内到转印单元返回到图像载体，直到由激光扫描器单元输出打印许可信号。

7. 发明授权

US06381425B2 Image forming apparatus and image forming method employing the same 失效
标题翻译：图像形成装置及使用其的图像形成方法
公开(公告)号：US06381425B2
公开(公告)日：2002-04-30
申请号：US09768701
申请日：2001-01-24
申请人： Takahiro Sasai
发明人： Takahiro Sasai
IPC分类号： G03G1516
CPC分类号： G03G15/1675 , G03G2215/1614
摘要： In an image forming machine (1), a toner image formed on a photosensitive drum (22) is transferred to a recording sheet by applying a voltage (transfer voltage) to a transfer roller (26). The value of the voltage to be applied is determined by performing a feed back sequence based on information obtained after a predetermined number of recording sheets have been recorded. The point when a current detected in connection with the applied voltage has reached a predetermined value (&agr;) is considered the saturation of the applied voltage. Once this point is reached, there will be no feed back sequences to be performed. After the application voltage saturation, therefore, it is possible to continue the printing operation without any interruption since no feed back sequence is performed. This shortens a job duration.
摘要翻译：在图像形成机（1）中，通过向转印辊（26）施加电压（转印电压），将形成在感光鼓（22）上的调色剂图像转印到记录片材上。通过基于在预定数量的记录纸被记录之后获得的信息执行反馈序列来确定要施加的电压的值。当与所施加的电压相关联的电流达到预定值（α）时的点被认为是施加的电压的饱和。一旦达到这一点，将不会执行反馈序列。因此，在施加电压饱和之后，由于不执行反馈序列，所以可以不中断地继续打印操作。这缩短了工作时间。

8. 发明授权

US08755711B2 Image forming apparatus and image forming method 有权
标题翻译：图像形成装置及图像形成方法
公开(公告)号：US08755711B2
公开(公告)日：2014-06-17
申请号：US13392591
申请日：2010-08-13
申请人： Takahiro Sasai , Yuji Suzuki , Yoshitaka Taruno
发明人： Takahiro Sasai , Yuji Suzuki , Yoshitaka Taruno
IPC分类号： G03G15/00 , G03G15/02
CPC分类号： G03G15/0225 , G03G15/0258 , G03G15/0291 , G03G2215/027
摘要： When printing, an image forming apparatus determines, based on a threshold voltage corresponding to a print speed during printing, whether or not a corona wire of a charger needs to be cleaned. On the basis of whether or not a monitoring voltage corresponding to a current value of a charged bias, which is applied to the corona wire by a charged-bias high-voltage power supply, is equal to or more than a predetermined threshold voltage corresponding to the print speed during printing, the image forming apparatus determines whether or not the corona wire needs to be cleaned.
摘要翻译：当打印时，图像形成装置基于与打印期间的打印速度相对应的阈值电压来确定是否需要清洁充电器的电晕丝。基于对应于通过充电偏压高压电源施加到电晕线的充电偏压的当前值的监视电压是否等于或大于对应于打印期间的打印速度，图像形成装置确定是否需要清洁电晕丝。

9. 发明授权

US07653329B2 Image forming device having variable pre-rotation cleaning process 有权
标题翻译：图像形成装置具有可变的预旋转清洁处理
公开(公告)号：US07653329B2
公开(公告)日：2010-01-26
申请号：US11457868
申请日：2006-07-17
申请人： Takahiro Sasai
发明人： Takahiro Sasai
IPC分类号： G03G21/00
CPC分类号： G03G15/50
摘要： An image forming device includes a motor, a photoconductive drum, a charging unit, an abrasion tool, a timer, and a controller. The charging unit is provided at a periphery of the photoconductive drum, and charges the photoconductive drum by a corona discharge method. The abrasion tool is provided at the periphery of the photoconductive drum, and abrades the surface of the photoconductive drum while the photoconductive drum is rotating. The timer measures a job interval from when the motor is stopped to end a previous print job until when the motor is driven to start a next print job. The controller executes over a predetermined period of time a pre-rotation process to adjust the photoconductive drum and a peripheral system of the photoconductive drum into an optimum state, and calculates a period when the pre-rotation process is to be executed according to the measured job interval.
摘要翻译：图像形成装置包括电动机，感光鼓，充电单元，磨损工具，定时器和控制器。充电单元设置在感光鼓的周边，并通过电晕放电法对感光鼓充电。磨损工具设置在感光鼓的周边，并且在感光鼓旋转时磨蚀感光鼓的表面。定时器测量从电机停止到结束先前打印作业的作业间隔，直到电机被驱动以开始下一个打印作业。控制器在预定时间段内执行预旋转处理，以将感光鼓和感光鼓的外围系统调整到最佳状态，并且计算当根据所测量的旋转处理执行预旋转处理的周期工作间隔。

10. 发明申请

US20060093390A1 Image forming device 有权
标题翻译：图像形成装置
公开(公告)号：US20060093390A1
公开(公告)日：2006-05-04
申请号：US11264351
申请日：2005-10-05
申请人： Takahiro Sasai
发明人： Takahiro Sasai
IPC分类号： G03G21/20
CPC分类号： G03G15/0258 , G03G15/0291
摘要： An image forming device includes a photoconductive drum, a discharge electrode which discharges corona onto a surface of the photoconductive drum, and a cleaning member which cleans the discharge electrode by moving on the discharge electrode. The image forming device further includes a detection device, which is arranged on one of a first side and a second side in a moving direction of the cleaning member, and detects a current value of an electric current discharged from the discharge electrode.
摘要翻译：图像形成装置包括感光鼓，将电晕放电到感光鼓的表面上的放电电极，以及通过在放电电极上移动来清洁放电电极的清洁部件。图像形成装置还包括检测装置，其被配置在清洁部件的移动方向上的第一侧和第二侧中的一方上，并且检测从放电电极放出的电流的电流值。

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