公开(公告)号：US20150205241A1

公开(公告)日：2015-07-23

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： G03G15/00 ,  G03G15/20

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 在图像形成操作期间，从处理器接收到存储在存储器中的记录介质之一的送纸许可信号时，使得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的检测 直到记录介质被排出。

公开(公告)号：US20150261161A1

公开(公告)日：2015-09-17

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-detecting device 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 number of recording media detected by the sensor, to adjust a luminosity of the sensor based on the calculated decreased output amount of the sensor and determine smoothness of the recording medium based on an output of the sensor after the adjustment.

摘要翻译： 记录介质平滑度检测器包括传感器和计算器。 传感器包括朝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装置。 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，以根据计算出的传感器的发光度来调节传感器的亮度 降低传感器的输出量，并且在调整之后基于传感器的输出确定记录介质的平滑度。

公开(公告)号：US20150116718A1

公开(公告)日：2015-04-30

申请号：US14512657

申请日：2014-10-13

申请人： Terumichi OCHI ,  Takumi WAIDA ,  Shinji KATO ,  Toshihiro ISHII ,  Shuji HIRAI ,  Takashi FUJITA ,  Shinichi NAMEKATA ,  Ryota YAMASHINA ,  Arinobu YOSHIURA ,  Motoyoshi YAMANO

发明人： Terumichi OCHI ,  Takumi WAIDA ,  Shinji KATO ,  Toshihiro ISHII ,  Shuji HIRAI ,  Takashi FUJITA ,  Shinichi NAMEKATA ,  Ryota YAMASHINA ,  Arinobu YOSHIURA ,  Motoyoshi YAMANO

IPC分类号： G01N21/47 ,  G03G15/00

CPC分类号： G03G15/5029 ,  G01N21/55

摘要： An optical sensor includes a light-emitting unit to emit light onto a measuring object, a regular reflection light receiver to receive regular reflection light from the measuring object out of the light emitted by the light-emitting unit, and a diffuse reflection light receiver to receive diffuse reflection light from the measuring object out of the light emitted by the light-emitting unit. An angle of incidence of the light emitted onto a surface of the measuring object is not smaller than 75° and not larger than 85°. The diffuse reflection light receiver receives, out of the diffuse reflection light from the measuring object, diffuse reflection light having an angle of reflection with respect to a perpendicular to the surface of the measuring object larger than 0° and smaller than an angle of reflection of the regular reflection light with respect to the perpendicular to the surface of the measuring object.

摘要翻译： 光学传感器包括：发光单元，用于将光发射到测量对象;正射反射光接收器，用于从发光单元发射的光中接收来自测量对象的规则反射光;漫反射光接收器， 从发光单元发出的光中接收来自测量对象的漫反射光。 发射到测量对象表面上的光的入射角不小于75°并且不大于85°。 漫反射光接收器从测量对象的漫反射光中接收到相对于测量对象表面的垂直方向的反射角大于0°并且小于0°的反射角的漫反射光 相对于测量对象表面垂直的正反射光。

公开(公告)号：US20180136593A1

公开(公告)日：2018-05-17

申请号：US15713838

申请日：2017-09-25

申请人： Satoshi KANEKO ,  Shuji HIRAI ,  Yuuichiroh UEMATSU ,  Terumichi OCHI

发明人： Satoshi KANEKO ,  Shuji HIRAI ,  Yuuichiroh UEMATSU ,  Terumichi OCHI

IPC分类号： G03G15/16 ,  G03G15/00 ,  G03G21/16

CPC分类号： G03G15/1615 ,  G03G13/14 ,  G03G15/011 ,  G03G15/065 ,  G03G15/5008 ,  G03G15/5025 ,  G03G15/5041 ,  G03G15/5058 ,  G03G21/1647 ,  G03G21/1676 ,  G03G21/203 ,  G03G2215/00042 ,  G03G2221/1657

摘要： An image forming apparatus includes an image forming unit and a controller. The image forming unit includes a latent image bearer, a charger to charge the latent image bearer, an exposure device to expose a latent image on the surface of the latent image bearer, and a developing device to develop the latent image with a developer. The controller executes an image forming process, a first fluctuation control that cyclically changes a developing bias supplied to the developing device based on predetermined first pattern data, and a second fluctuation control that cyclically changes a charging bias supplied to the charger based on predetermined second pattern data, in parallel. The controller executes a determination process to determine whether the controller executes the first fluctuation control. When the controller determines not to execute the first fluctuation control, the controller determines not to execute the second fluctuation control, too.

公开(公告)号：US20170269527A1

公开(公告)日：2017-09-21

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 the 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.

公开(公告)号：US20150261162A1

公开(公告)日：2015-09-17

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

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。

公开(公告)号：US20160223934A1

公开(公告)日：2016-08-04

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： B41J2/385

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.

摘要翻译： 图像形成装置包括：潜像形成单元，其利用来自光源的光在潜像载体上形成潜像; 以及校正数据生成单元，包括：获取单元，对于每个位置，获取所述光源的强度的校正值以均衡潜像的浓度分布; 量化单元，其通过量化每个位置的校正值来生成每个位置的校正数据; 以及过度校正抑制单元，在相对于表示校正量的恢复值的绝对值并基于校正而产生的恢复值的绝对值的位置之后，输出修正数据，该校正数据在减少从紧接在前的潜像形成位置开始的变化量之后， 数据超过校正值的绝对值。

公开(公告)号：US20160187807A1

公开(公告)日：2016-06-30

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

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.

摘要翻译： 图像形成装置包括：图像形成部，其包括潜像载体; 充电器，用于对潜像载体的表面充电; 以及潜像写入器，用于在潜像载体的带电表面上写入潜像。 图像形成装置还包括显影装置，用显影剂载体上的显影剂显影潜像; 以及包括控制器和写入控制器的循环改变装置。 循环变化装置循环地改变施加到显影剂载体的显影偏压，同时在图像形成部分的图像形成期间周期性地改变充电器的电荷强度。 循环变化装置循环地改变显影偏压和电荷强度，以及潜像写入器的潜像写入强度。

公开(公告)号：US20130243456A1

公开(公告)日：2013-09-19

申请号：US13753859

申请日：2013-01-30

申请人： Satoshi KANEKO ,  Jun YAMANE ,  Koichi KUDO ,  Shinji KATO ,  Hitoshi ISHIBASHI ,  Shuji HIRAI ,  Shingo SUZUKI

发明人： Satoshi KANEKO ,  Jun YAMANE ,  Koichi KUDO ,  Shinji KATO ,  Hitoshi ISHIBASHI ,  Shuji HIRAI ,  Shingo SUZUKI

IPC分类号： G03G15/00

CPC分类号： G03G13/22 ,  G03G15/5037 ,  G03G15/5041

摘要： An image forming apparatus includes a rotatable image carrier that carries a toner image having a length corresponding to at least a circumferential length of the carrier; an image density detector that detects a density of the image; a potential detector that detects, over at least the circumferential length, a surface potential of the carrier before toner adheres thereto; a first image forming device that adjusts the density with a first factor, and forms an image based on a first condition of the first factor; a second image forming device that adjusts the density with a second factor, and forms an image based on a second condition of the second factor; a first determining device that determines the first condition based on uneven density; and a second determining device that determines the second condition based on uneven density and a potential distribution of the surface potential.

摘要翻译： 图像形成装置包括可转动的图像载体，其承载具有对应于载体的至少周长的长度的调色剂图像; 图像浓度检测器，其检测图像的浓度; 在调色剂附着于其之前，至少在圆周长度上检测载体的表面电位的电位检测器; 第一图像形成装置，其以第一因子调整所述浓度，并且基于所述第一因子的第一条件形成图像; 第二图像形成装置，其利用第二因子调整所述浓度，并且基于所述第二因子的第二条件形成图像; 第一确定装置，其基于不均匀密度来确定第一条件; 以及第二确定装置，其基于不均匀密度和表面电位的电位分布来确定第二条件。

公开(公告)号：US20160334734A1

公开(公告)日：2016-11-17

申请号：US15221003

申请日：2016-07-27

申请人： Satoshi KANEKO ,  Shinji KATO ,  Shuji HIRAI

发明人： Satoshi KANEKO ,  Shinji KATO ,  Shuji HIRAI

IPC分类号： G03G15/08

CPC分类号： G03G15/0849 ,  G03G15/065 ,  G03G15/5041 ,  G03G15/5054

摘要： A toner adhesion amount information detection unit detects toner adhesion amount information. An image density unevenness detection unit detects image density unevenness in an image. A toner image forming unit forms a latent image on the surface of the latent image bearer, and performs the developing processing by applying developing bias between the latent image bearer and a developer bearer. The toner adhesion amount information detection unit detects, as the toner adhesion amount information, developing current flowing between the developer bearer and the latent image bearer. The image density unevenness detection unit obtains, from the image information, an index value indicating a toner adhesion amount of a toner image portion when the developing current is detected, and detects the image density unevenness based on the image information and the developing current when the index value indicates a toner adhesion amount of a prescribed amount or more.

摘要翻译： 调色剂附着量信息检测单元检测调色剂附着量信息。 图像浓度不均匀性检测单元检测图像中的图像浓度不均匀。 调色剂图像形成单元在潜像载体的表面上形成潜像，并且通过在潜像载体和显影剂载体之间施加显影偏压来进行显影处理。 调色剂附着量信息检测单元检测作为调色剂附着量信息，显影剂载体和潜像载体之间流动的显影电流。 图像浓度不均匀性检测单元从图像信息获得指示当检测到显影电流时调色剂图像部分的调色剂附着量的指标值，并且当基于图像信息和显影电流检测图像浓度不均匀时 指标值表示调色剂附着量在规定量以上。