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1. 发明授权

US10474056B2 Image forming apparatus 有权
公开(公告)号：US10474056B2
公开(公告)日：2019-11-12
申请号：US16227980
申请日：2018-12-20
申请人： Yuuichiroh Uematsu , Satoshi Kaneko , Terumichi Ochi , Shuji Hirai
发明人： Yuuichiroh Uematsu , Satoshi Kaneko , Terumichi Ochi , Shuji Hirai
IPC分类号： G03G15/04 , G03G15/043 , G03G15/00
摘要： An image forming apparatus includes a latent image bearer; a writing device configured to write a latent image onto the latent image bearer; a detection device configured to detect, at a plurality of positions, a density of a toner image obtained through development of the latent image; and a controller configured to correct a writing intensity of the writing device to correct an uneven density based on detection values of the detection device. The controller determines whether each of the detection values is pass or fail. In response to a determination that a detection value is fail, the controller corrects the wiring intensity based on another detection value determined to be pass at a position different from a position at which the detection value is determined to be fail, instead of correcting the writing intensity based on the detection value determined to be fail.

2. 发明授权

US09348288B2 Image forming apparatus forming a plurality of displaced test latent image parts 有权
标题翻译：图像形成装置形成多个位移测试潜像部分
公开(公告)号：US09348288B2
公开(公告)日：2016-05-24
申请号：US14619387
申请日：2015-02-11
申请人： Satoshi Kaneko , Shinji Kato , Shuji Hirai , Hideo Muroi , Terumichi Ochi
发明人： Satoshi Kaneko , Shinji Kato , Shuji Hirai , Hideo Muroi , Terumichi Ochi
IPC分类号： G03G15/00 , G03G15/043 , G03G15/06
CPC分类号： G03G15/5041 , G03G15/043 , G03G15/065
摘要： An image forming apparatus includes a latent image bearer, a toner image forming unit, and a transfer device. The toner image forming unit includes a charger, a latent image forming device, and a developing device, and is configured to form a test latent image pattern on a surface of the latent image bearer, and to develop the test latent image pattern into a test toner pattern. The test latent image pattern includes a plurality of test latent image parts partly offset from one another in a main scanning direction. The image forming apparatus also includes a developing current detector and a processor to detect uneven image density in the main scanning direction using the test latent image pattern, based on the developing current detected by the developing current detector, to adjust the uneven image density in the main scanning direction.
摘要翻译：图像形成装置包括潜像载体，调色剂图像形成单元和转印装置。调色剂图像形成单元包括充电器，潜像形成装置和显影装置，并且被配置为在潜像承载体的表面上形成测试潜像图案，并将测试潜像图案显影成测试墨粉图案。测试潜像图案包括在主扫描方向上彼此部分偏移的多个测试潜像部分。图像形成装置还包括显影电流检测器和处理器，用于基于由显影电流检测器检测到的显影电流，使用测试潜像图案来检测主扫描方向上的不均匀图像浓度，以调整不均匀图像浓度主扫描方向。

3. 发明申请

US20190196355A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20190196355A1
公开(公告)日：2019-06-27
申请号：US16227980
申请日：2018-12-20
申请人： Yuuichiroh UEMATSU , Satoshi Kaneko , Terumichi Ochi , Shuji Hirai
发明人： Yuuichiroh UEMATSU , Satoshi Kaneko , Terumichi Ochi , Shuji Hirai
IPC分类号： G03G15/043 , G03G15/04
CPC分类号： G03G15/043 , G03G15/04072 , G03G15/5058 , G03G2215/00033 , G03G2215/00037
摘要： An image forming apparatus includes a latent image bearer; a writing device configured to write a latent image onto the latent image bearer; a detection device configured to detect, at a plurality of positions, a density of a toner image obtained through development of the latent image; and a controller configured to correct a writing intensity of the writing device to correct an uneven density based on detection values of the detection device. The controller determines whether each of the detection values is pass or fail. In response to a determination that a detection value is fail, the controller corrects the wiring intensity based on another detection value determined to be pass at a position different from a position at which the detection value is determined to be fail, instead of correcting the writing intensity based on the detection value determined to be fail.

4. 发明授权

US09671716B2 Image forming apparatus and correction data generation method which corrects the intensity of a light source which forms a latent image 有权
公开(公告)号：US09671716B2
公开(公告)日：2017-06-06
申请号：US15009990
申请日：2016-01-29
申请人： Naoto Watanabe , Shuji Hirai , Satoshi Kaneko , Terumichi Ochi , Muneaki Iwata
发明人： Naoto Watanabe , Shuji Hirai , Satoshi Kaneko , Terumichi Ochi , Muneaki Iwata
IPC分类号： G03G15/00 , G03G15/043 , H04N1/04 , H04N1/06
CPC分类号： G03G15/043 , H04N1/0283 , H04N1/04 , H04N1/06 , H04N1/113 , H04N2201/04755
摘要： An image forming apparatus includes: a latent image forming unit that forms a latent image on a latent image bearer with light from a light source; and a correction data generating unit that includes: an acquiring unit that acquires, for each position, a correction value of an intensity of the light source to equalize a density distribution of a latent image; a quantizing unit that generates a correction data for each position by quantizing a correction value for each position; and an excessive correction suppressing unit that outputs the correction data after reducing an amount of change from an immediately preceding latent image formation position, with respect to a position at which an absolute value of a restored value indicating a correction amount and generated based on the correction data exceeds an absolute value of the correction value.

5. 发明授权

US09996037B2 Image forming apparatus and image forming method which cyclically change a charging power and a developing bias applied to a developer bearer 有权
公开(公告)号：US09996037B2
公开(公告)日：2018-06-12
申请号：US15447696
申请日：2017-03-02
申请人： Satoshi Kaneko , Terumichi Ochi , Shuji Hirai
发明人： Satoshi Kaneko , Terumichi Ochi , Shuji Hirai
IPC分类号： G03G15/00
CPC分类号： G03G15/5025 , G03G15/1605 , G03G15/5058 , G03G2215/0129 , G03G2215/0164
摘要： An image forming apparatus includes an image forming device, an image density detector, and an output change device configured to cause the image forming device to form a test toner image while cyclically changing a charging power based on a charging change pattern and a developing bias based on a developing change pattern, generate an image density fluctuation pattern of the test toner image in a rotation direction of a latent image bearer, generate a writing change pattern to cyclically change a power of latent image writing based on the image density fluctuation pattern of the test toner image and one of the charging change pattern and a correlative pattern correlated with the charging change pattern. The output change device is configured to cyclically change the power of latent image writing based on the writing change pattern during image formation according to a user command.

6. 发明授权

US09778593B2 Image forming apparatus 有权
公开(公告)号：US09778593B2
公开(公告)日：2017-10-03
申请号：US14971106
申请日：2015-12-16
申请人： Shuji Hirai , Satoshi Kaneko , Terumichi Ochi
发明人： Shuji Hirai , Satoshi Kaneko , Terumichi Ochi
IPC分类号： G03G15/06 , G03G15/02 , G03G15/043
CPC分类号： G03G15/065 , G03G15/0266 , G03G15/043
摘要： An image forming apparatus includes an image forming section that includes a latent image bearer; a charger to charge a surface of the latent image bearer; and a latent image writer to write a latent image on the charged surface of the latent image bearer. The image forming apparatus further includes a developing device to develop the latent image with a developer borne on a developer bearer; and a cyclical changing device including a controller and a write controller, in combination. The cyclical changing device cyclically changes a developing bias to be applied to the developer bearer while cyclically changing a charge intensity of the charger during the image formation by the image forming section. The cyclical changing device cyclically changes the developing bias and the charge intensity, and a latent image write intensity of the latent image writer.

7. 发明申请

US20160299452A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20160299452A1
公开(公告)日：2016-10-13
申请号：US15090252
申请日：2016-04-04
申请人： Satoshi Kaneko , Shuji Hirai , Terumichi Ochi
发明人： Satoshi Kaneko , Shuji Hirai , Terumichi Ochi
IPC分类号： G03G15/02
CPC分类号： G03G15/0266 , G03G15/5037
摘要： An image forming apparatus includes an image forming device, an electric current detector, and a controller. The image forming device includes a latent image bearer, a charging rotator, a charging power supply, a latent image writing unit, and a developing unit. The controller (i) determines an uneven electric resistance of the charging rotator in a direction of rotation of the charging rotator, based on a detection result by the electric current detector, (ii) perform, at a predetermined timing, data construction processing to construct change pattern data to change an output value of a voltage from the charging power supply according to a predetermined pattern, based on the uneven electric resistance, and (iii) perform, in a print job to form a toner image in response to an instruction, voltage changing processing to charge the latent image bearer while changing the output value of the voltage, based on the change pattern data.
摘要翻译：图像形成装置包括图像形成装置，电流检测器和控制器。图像形成装置包括潜像载体，充电旋转器，充电电源，潜像写入单元和显影单元。控制器（i）基于电流检测器的检测结果，确定充电旋转器在旋转方向上的不均匀电阻，（ii）在预定定时执行数据构造处理以构造根据不均匀的电阻来改变图案数据以根据预定图案从充电电源改变电压的输出值，以及（iii）在打印作业中执行响应于指令形成调色剂图像，电压变化处理，基于变化图案数据，在改变电压的输出值的同时对潜像承载进行充电。

8. 发明授权

US09727001B2 Technique for reducing uneven image density in an image forming apparatus 有权
公开(公告)号：US09727001B2
公开(公告)日：2017-08-08
申请号：US15090252
申请日：2016-04-04
申请人： Satoshi Kaneko , Shuji Hirai , Terumichi Ochi
发明人： Satoshi Kaneko , Shuji Hirai , Terumichi Ochi
IPC分类号： G03G15/02 , G03G15/00
CPC分类号： G03G15/0266 , G03G15/5037
摘要： An image forming apparatus includes an image forming device, an electric current detector, and a controller. The image forming device includes a latent image bearer, a charging rotator, a charging power supply, a latent image writing unit, and a developing unit. The controller (i) determines an uneven electric resistance of the charging rotator in a direction of rotation of the charging rotator, based on a detection result by the electric current detector, (ii) perform, at a predetermined timing, data construction processing to construct change pattern data to change an output value of a voltage from the charging power supply according to a predetermined pattern, based on the uneven electric resistance, and (iii) perform, in a print job to form a toner image in response to an instruction, voltage changing processing to charge the latent image bearer while changing the output value of the voltage, based on the change pattern data.

9. 发明授权

US09250592B2 Image forming apparatus having a smoothness detector 有权
标题翻译：具有平滑度检测器的图像形成装置
公开(公告)号：US09250592B2
公开(公告)日：2016-02-02
申请号：US14592278
申请日：2015-01-08
申请人： Ryota Yamashina , Keitaro Shoji , Shuji Hirai , Takumi Waida , Terumichi Ochi
发明人： Ryota Yamashina , Keitaro Shoji , Shuji Hirai , Takumi Waida , Terumichi Ochi
IPC分类号： G03G15/20 , G03G15/00
CPC分类号： G03G15/5029 , G03G15/2039
摘要： An image forming apparatus includes a storage to store recording media, a smoothness detector to detect smoothness of the recording media, a memory unit to store smoothness values detected by the smoothness detector, a transfer device to transfer a toner image onto the recording media, a fixing device to fix the toner image onto the recording media, a temperature controller to determine a target fixing temperature for a second and subsequent recording media based on a predicted value calculated from the smoothness values, and a processor to reset the smoothness values in response to detection of an external factor that causes the smoothness detector to provide a smoothness value out of a predetermined range of the predicted value during an image forming operation from when the processor receives a sheet-feeding permission signal of one of the recording media stored in the storage until the recording medium is ejected.
摘要翻译：图像形成装置包括存储记录介质的存储器，用于检测记录介质的平滑度的平滑度检测器，存储由平滑度检测器检测的平滑度值的存储单元，将调色剂图像转印到记录介质上的传送装置，固定装置，用于将调色剂图像固定到记录介质上，温度控制器，用于基于从平滑度值计算的预测值来确定第二和随后的记录介质的目标定影温度，以及处理器，以响应于检测在图像形成操作期间使平滑度检测器在预定值的预定范围内提供平滑度值的外部因素，从处理器接收到存储在存储器中的记录介质之一的送纸允许信号直到记录介质被排出。

10. 发明授权

US09557697B2 Recording media smoothness detector and image forming apparatus incorporating same 有权
标题翻译：记录介质平滑度检测器和结合其的图像形成装置
公开(公告)号：US09557697B2
公开(公告)日：2017-01-31
申请号：US14643082
申请日：2015-03-10
申请人： Takumi Waida , Shuji Hirai , Terumichi Ochi , Shinji Kato , Ryota Yamashina , Keitaro Shoji
发明人： Takumi Waida , Shuji Hirai , Terumichi Ochi , Shinji Kato , Ryota Yamashina , Keitaro Shoji
IPC分类号： G01J4/00 , G03G15/00
CPC分类号： G03G15/5029 , G03G2215/00616 , G03G2215/00734
摘要： A recording media smoothness detector includes a sensor and a calculator. The sensor includes a light source to emit light toward a recording medium and a light detector to detect an amount of light reflected by the recording medium. The calculator includes a first memory to store an initial output value of the sensor and a second memory to store a decreased output percentage of the sensor relative to the initial output value per number of recording media detected. The calculator is configured to calculate a decreased output amount of the sensor from the decreased output percentage of the sensor per number of recording media detected, according to a number of recording media detected by the sensor, to adjust a luminosity of the light source based on the calculated decreased output amount of the sensor and determine a type of the recording medium based on an output of the sensor after the adjustment of the luminosity of the light source and based on the number of recording media detected by the sensor.
摘要翻译：记录介质平滑度检测器包括传感器和计算器。传感器包括向记录介质发射光的光源和用于检测由记录介质反射的光量的光检测器。计算器包括用于存储传感器的初始输出值的第一存储器和用于存储传感器相对于每个检测到的记录介质的初始输出值减小的输出百分比的第二存储器。计算器被配置为根据传感器检测到的记录介质的数量，根据传感器检测到的每个记录介质的数量，从传感器的输出百分比减小来计算传感器的输出量的减少，以根据传感器检测到的光源的亮度来调节计算出的传感器的减少的输出量，并且在调整光源的亮度之后并且基于由传感器检测的记录介质的数量，基于传感器的输出来确定记录介质的类型。

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