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1. 发明授权

US09436135B2 Toner pattern density correction in an image forming apparatus 有权
标题翻译：图像形成装置中的调色剂图案密度校正
公开(公告)号：US09436135B2
公开(公告)日：2016-09-06
申请号：US14740175
申请日：2015-06-15
申请人： Keita Sone , Nobutaka Takeuchi , Shinichi Akatsu , Tomohide Takenaka , Kohta Fujimori , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu , Kazufumi Kimura
发明人： Keita Sone , Nobutaka Takeuchi , Shinichi Akatsu , Tomohide Takenaka , Kohta Fujimori , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu , Kazufumi Kimura
IPC分类号： G03G15/16
CPC分类号： G03G15/1615 , G03G15/5054 , G03G15/5062
摘要： An image forming apparatus includes an endless belt-shaped image bearer that is rotatably supported and entrained around rollers; a transfer member positioned to contact an outer surface of the image bearer; a transfer device to transfer a toner image conveyed while being carried on the outer surface of the image bearer onto a transfer medium conveyed between the image bearer and the transfer member; a toner image sensor to detect the toner image transferred onto the transfer medium; and a conveyance speed controller to fine-tune a conveyance speed of the transfer medium. Based on fine-tuning data of the conveyance speed controller, a detection result of the toner image sensor is corrected and image forming conditions are corrected based on the corrected detection result.
摘要翻译：图像形成装置包括可旋转地支撑并夹带在辊周围的环形带状图像承载件; 定位成接触所述图像承载体的外表面的转印构件; 传送装置，用于将在承载在图像载体的外表面上的传送的调色剂图像转印到在图像载体和转印部件之间传送的转印介质上; 调色剂图像传感器，用于检测转印到转印介质上的调色剂图像; 以及微调转印介质的输送速度的输送速度控制器。基于输送速度控制器的微调数据，校正调色剂图像传感器的检测结果，并且基于校正的检测结果校正图像形成条件。

2. 发明授权

US10061226B2 Image forming apparatus and image forming method 有权
公开(公告)号：US10061226B2
公开(公告)日：2018-08-28
申请号：US15477576
申请日：2017-04-03
申请人： Kazuaki Kamihara , Yuuichiroh Uematsu , Tetsuya Muto , Tomohide Takenaka , Keita Sone , Keita Gotoh , Masahiko Shakuto , Takamasa Ozeki , Mutsuki Morinaga , Hitoshi Yamamoto , Keiko Kajimura
发明人： Kazuaki Kamihara , Yuuichiroh Uematsu , Tetsuya Muto , Tomohide Takenaka , Keita Sone , Keita Gotoh , Masahiko Shakuto , Takamasa Ozeki , Mutsuki Morinaga , Hitoshi Yamamoto , Keiko Kajimura
IPC分类号： G03G15/00 , G03G15/08
CPC分类号： G03G15/0855 , G03G15/0131 , G03G15/0189 , G03G15/0806 , G03G15/0856 , G03G15/0865 , G03G15/5058 , G03G15/556
摘要： An image forming apparatus includes an image bearer, a toner image forming device, a plurality of image density detectors, and a controller. The plurality of image density detectors are disposed at predetermined intervals opposite the image bearer in a width direction of the image bearer. The controller causes the toner image forming device to form toner image patterns having an identical density at the plurality of positions on the image bearer and the plurality of image density detectors detects a density of the toner image patterns. Based on the detected density of the toner image patterns, the controller identifies multiple cyclic fluctuations of the density of the toner image patterns and adjusts an image forming condition based on the multiple cyclic fluctuations of the density of the toner image patterns to decrease an amplitude caused by the multiple cyclic fluctuations of the density of the toner image patterns.

3. 发明申请

US20160103408A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20160103408A1
公开(公告)日：2016-04-14
申请号：US14837587
申请日：2015-08-27
申请人： Keita Sone , Tomohide Takenaka
发明人： Keita Sone , Tomohide Takenaka
IPC分类号： G03G15/00 , G03G21/20
CPC分类号： G03G15/5037 , G03G15/043 , G03G21/20 , G03G21/203 , G03G2215/00054
摘要： An image forming apparatus includes a latent image bearer; a charger; an exposure device; a developing device; a potential detector to detect a surface potential at a detection position between an exposure position and a development position on the latent image bearer in a direction of rotation of the latent image bearer; and a potential controller to determine an image forming condition. The potential controller includes a potential calculator to calculate an exposed area potential based on a detected potential smaller in charging polarity than a potential threshold, out of the detected surface potential, and a threshold determiner to set the potential threshold between the exposed area potential and an unexposed area potential of the latent image bearer based on at least one of a change in the unexposed area potential, a change with time of the latent image bearer, and a change in an ambient condition.
摘要翻译：图像形成装置包括潜像载体; 充电器曝光装置; 显影装置; 电位检测器，用于检测在所述潜像载体的旋转方向上的所述潜像载体上的曝光位置和显影位置之间的检测位置处的表面电位; 以及用于确定图像形成条件的电位控制器。电位控制器包括：电位计算器，用于基于在检测到的表面电位以外的电位极性小于电位阈值的检测电位来计算曝光区域电位;以及阈值确定器，用于将暴露区域电位和基于未曝光区域电位的变化，潜像载体的随时间的变化以及环境条件的变化中的至少一个，潜像载体的未曝光区域电位。

4. 发明授权

US10599081B2 Image forming apparatus and voltage application method 有权
公开(公告)号：US10599081B2
公开(公告)日：2020-03-24
申请号：US16103472
申请日：2018-08-14
申请人： Masashi Tachi , Takuma Higa , Masayoshi Nakayama , Masaki Sukesako , Tomohide Takenaka , Yuichi Aizawa , Kazuaki Kamihara , Keita Sone
发明人： Masashi Tachi , Takuma Higa , Masayoshi Nakayama , Masaki Sukesako , Tomohide Takenaka , Yuichi Aizawa , Kazuaki Kamihara , Keita Sone
IPC分类号： G03G15/16 , G03G15/00 , G03G21/16 , G03G15/06 , G03G15/02
摘要： An image forming apparatus includes a latent image bearer to bear a latent image, a potential sensor having a vibrator driven by a drive frequency to detect a surface potential of the latent image bearer, a developer bearer to bear developer that develops the latent image on the latent image bearer, and a power supply to apply a superimposed voltage obtained by superimposing an alternating voltage on a direct current voltage on the developer bearer. The frequency of the alternating voltage is not a multiple of the drive frequency and is a value obtained by adding a predetermined value to a multiple of the driving frequency.

5. 发明申请

US20190064719A1 IMAGE FORMING APPARATUS AND VOLTAGE APPLICATION METHOD 审中-公开
公开(公告)号：US20190064719A1
公开(公告)日：2019-02-28
申请号：US16103472
申请日：2018-08-14
申请人： Masashi TACHI , Takuma Higa , Masayoshi Nakayama , Masaki Sukesako , Tomohide Takenaka , Yuichi Aizawa , Kazuaki Kamihara , Keita Sone
发明人： Masashi TACHI , Takuma Higa , Masayoshi Nakayama , Masaki Sukesako , Tomohide Takenaka , Yuichi Aizawa , Kazuaki Kamihara , Keita Sone
IPC分类号： G03G15/00 , G03G15/02 , G03G15/06 , G03G21/16
CPC分类号： G03G15/5037 , G03G15/0266 , G03G15/065 , G03G21/1676
摘要： An image forming apparatus includes a latent image bearer to bear a latent image, a potential sensor having a vibrator driven by a drive frequency to detect a surface potential of the latent image bearer, a developer bearer to bear developer that develops the latent image on the latent image bearer, and a power supply to apply a superimposed voltage obtained by superimposing an alternating voltage on a direct current voltage on the developer bearer. The frequency of the alternating voltage is not a multiple of the drive frequency and is a value obtained by adding a predetermined value to a multiple of the driving frequency.

6. 发明授权

US09535376B2 Image forming apparatus that switches transfer bias based on detected environment condition 有权
标题翻译：基于检测到的环境条件切换传输偏压的图像形成装置
公开(公告)号：US09535376B2
公开(公告)日：2017-01-03
申请号：US15044596
申请日：2016-02-16
申请人： Keita Sone , Shinichi Akatsu , Tomohide Takenaka , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu
发明人： Keita Sone , Shinichi Akatsu , Tomohide Takenaka , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu
IPC分类号： G03G15/00 , G03G15/16 , G03G21/20
CPC分类号： G03G15/1665 , G03G15/1605 , G03G15/1675 , G03G21/20
摘要： An image forming apparatus includes an image bearing belt of a multi-layer structure, a toner image forming device, a nip forming device, a transfer power source, an environment-condition detector, and a controller. The toner image forming device forms a toner image on a surface of the image bearing belt. The transfer power source outputs a transfer bias including a superimposed voltage, in which a direct current voltage is superimposed on an alternating current voltage to transfer the toner image from the image bearing belt onto a recording medium at a transfer nip. The environment-condition detector detects an environment condition. The controller controls the transfer bias output from the transfer power source to perform a bias switching process to switch the transfer bias between a transfer bias including the superimposed voltage and a transfer bias including a direct current voltage based on a detected result of the environment-condition detector.
摘要翻译：图像形成装置包括多层结构的图像承载带，调色剂图像形成装置，压区形成装置，转印电源，环境条件检测器和控制器。调色剂图像形成装置在图像承载带的表面上形成调色剂图像。传输电源输出包括重叠电压的转印偏压，其中直流电压叠加在交流电压上，以将调色剂图像从图像承载带转印到转印压区上的记录介质上。环境条件检测器检测环境条件。控制器控制来自传送电源的传输偏压输出，以执行偏置切换处理，以根据环境条件的检测结果，在包括叠加电压的转印偏压和包括直流电压的转印偏压之间切换转印偏压探测器。

7. 发明授权

US09513585B2 Image forming apparatus which sets image forming condition based on calculated exposed area potential 有权
标题翻译：基于计算出的曝光面积电位设定图像形成条件的图像形成装置
公开(公告)号：US09513585B2
公开(公告)日：2016-12-06
申请号：US14837587
申请日：2015-08-27
申请人： Keita Sone , Tomohide Takenaka
发明人： Keita Sone , Tomohide Takenaka
IPC分类号： G03G15/00 , G03G21/20 , G03G15/043
CPC分类号： G03G15/5037 , G03G15/043 , G03G21/20 , G03G21/203 , G03G2215/00054
摘要： An image forming apparatus includes a latent image bearer; a charger; an exposure device; a developing device; a potential detector to detect a surface potential at a detection position between an exposure position and a development position on the latent image bearer in a direction of rotation of the latent image bearer; and a potential controller to determine an image forming condition. The potential controller includes a potential calculator to calculate an exposed area potential based on a detected potential smaller in charging polarity than a potential threshold, out of the detected surface potential, and a threshold determiner to set the potential threshold between the exposed area potential and an unexposed area potential of the latent image bearer based on at least one of a change in the unexposed area potential, a change with time of the latent image bearer, and a change in an ambient condition.
摘要翻译：图像形成装置包括潜像载体; 充电器曝光装置; 显影装置; 电位检测器，用于检测在所述潜像载体的旋转方向上的所述潜像载体上的曝光位置和显影位置之间的检测位置处的表面电位; 以及用于确定图像形成条件的电位控制器。电位控制器包括：电位计算器，用于基于在检测到的表面电位以外的电位极性小于电位阈值的检测电位来计算曝光区域电位;以及阈值确定器，用于将暴露区域电位和基于未曝光区域电位的变化，潜像载体的随时间的变化以及环境条件的变化中的至少一个，潜像载体的未曝光区域电位。

8. 发明申请

US20150362868A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20150362868A1
公开(公告)日：2015-12-17
申请号：US14740175
申请日：2015-06-15
申请人： Keita Sone , Nobutaka Takeuchi , Shinichi Akatsu , Tomohide Takenaka , Kohta Fujimori , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu , Kazufumi Kimura
发明人： Keita Sone , Nobutaka Takeuchi , Shinichi Akatsu , Tomohide Takenaka , Kohta Fujimori , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu , Kazufumi Kimura
IPC分类号： G03G15/16
CPC分类号： G03G15/1615 , G03G15/5054 , G03G15/5062
摘要： An image forming apparatus includes an endless belt-shaped image bearer that is rotatably supported and entrained around rollers; a transfer member positioned to contact an outer surface of the image bearer; a transfer device to transfer a toner image conveyed while being carried on the outer surface of the image bearer onto a transfer medium conveyed between the image bearer and the transfer member; a toner image sensor to detect the toner image transferred onto the transfer medium; and a conveyance speed controller to fine-tune a conveyance speed of the transfer medium. Based on fine-tuning data of the conveyance speed controller, a detection result of the toner image sensor is corrected and image forming conditions are corrected based on the corrected detection result.
摘要翻译：图像形成装置包括可旋转地支撑并夹带在辊周围的环形带状图像承载件; 定位成接触所述图像承载体的外表面的转印构件; 传送装置，用于将在承载在图像载体的外表面上的传送的调色剂图像转印到在图像载体和转印部件之间传送的转印介质上; 调色剂图像传感器，用于检测转印到转印介质上的调色剂图像; 以及微调转印介质的输送速度的输送速度控制器。基于输送速度控制器的微调数据，校正调色剂图像传感器的检测结果，并且基于校正的检测结果校正图像形成条件。

9. 发明授权

US08942584B2 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：US08942584B2
公开(公告)日：2015-01-27
申请号：US13453253
申请日：2012-04-23
申请人： Kayoko Tanaka , Kohta Fujimori , Keita Sone
发明人： Kayoko Tanaka , Kohta Fujimori , Keita Sone
IPC分类号： G03G15/00 , G03G15/01
CPC分类号： G03G15/5054 , G03G15/0115 , G03G15/0131 , G03G15/0189 , G03G15/5058 , G03G2215/0132 , G03G2215/0161 , G03G2215/0164
摘要： In an image forming apparatus, a processor performs: a solid density stabilization of adjusting, in accordance with detected toner adhesion amounts of solid toner images of solid tone patterns, a condition to form solid images with respective target image densities; a misregistration reduction of adjusting, in accordance with detection timing of position detection toner images of misregistration detection patterns, a condition to reduce misregistration of toner images; and a halftone density stabilization of adjusting, in accordance with detected toner adhesion amounts of area coverage modulation toner images, a condition to form halftone images with respective target image densities. The processor continuously performs the solid density stabilization and the misregistration reduction, and starts the halftone density stabilization when the solid density stabilization is completed and the misregistration reduction is not completed, to concurrently perform a step of the misregistration reduction and at least a step of the halftone density stabilization.
摘要翻译：在图像形成装置中，处理器执行：固体密度稳定化，其根据检测到的固体色调图像的固体调色剂图像的调色剂附着量调整形成具有各自目标图像密度的实心图像的条件; 根据调色剂图像的位置检测调色剂图像的检测定时来调整调色剂图像的重合不良的条件的对准减少; 以及半色调浓度稳定化，根据检测到的调色剂调色剂图像的调色剂附着量调整形成具有各自目标图像浓度的半色调图像的条件。处理器连续地执行固体密度稳定化和不对准降低，并且当固体密度稳定化完成并且未排序失调减少时，开始半色调浓度稳定化，同时进行不对准降低的步骤，并且至少在步骤半色调密度稳定。

10. 发明申请

US20130156449A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20130156449A1
公开(公告)日：2013-06-20
申请号：US13707797
申请日：2012-12-07
申请人： Kohta FUJIMORI , Kayoko Tanaka , Keita Sone
发明人： Kohta FUJIMORI , Kayoko Tanaka , Keita Sone
IPC分类号： G03G15/00
CPC分类号： G03G15/55 , G01N21/55 , G03G15/0189 , G03G15/5058
摘要： An image forming apparatus includes a image forming unit; an image bearing member having a surface to bear a toner image and a test pattern; the surface having a first time-surface positioned identical to the test pattern, an integer multiple of revolutions upstream or downstream from the test pattern in a surface movement direction, and a second time-surface positioned different from the test pattern, shorter than one revolution upstream or downstream from the test pattern; a reflection light detector to detect the amount of light reflected from the test pattern and the first and second time-surfaces of the image bearing member; and a controller to control the image forming unit based on the detection result and determine whether to execute a first-surface control to detect at least the first time-surface or a second-surface control to detect only the second time-surface based on use condition of the image forming apparatus.
摘要翻译：图像形成装置包括图像形成单元; 具有承载调色剂图像的表面和测试图案的图像承载部件; 所述表面具有与测试图案相同的第一时间表面，在测试图案的表面移动方向上游或下游的转数的整数倍，以及与测试图案不同的第二时间表，短于一转测试图案的上游或下游; 反射光检测器，用于检测从测试图案反射的光量和图像承载部件的第一和第二时间表面; 以及控制器，其基于检测结果来控制图像形成单元，并且确定是否执行第一表面控制以至少检测第一时间表面或第二表面控制，以仅基于使用检测第二时间表面图像形成装置的状态。

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