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1. 发明申请

US20220187753A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
公开(公告)号：US20220187753A1
公开(公告)日：2022-06-16
申请号：US17545463
申请日：2021-12-08
申请人： Katsuhiko Maeda
发明人： Katsuhiko Maeda
IPC分类号： G03G15/00 , G03G15/16
摘要： An image forming apparatus includes a transfer belt, a forming unit, a detection unit, a correction unit, a drive system, a determination unit, and a notification unit. The forming unit forms an image-misregistration detection pattern of a plurality of colors on the belt. The correction unit corrects an image misregistration of an image of each color based on a detection result of the pattern. The determination unit detects a difference amount between a pattern interval of the pattern on the belt and a pattern interval serving as a reference value for each color and determines that an abnormality has occurred in a driving state of the drive system, in response to the difference amount equal to or greater than a threshold value. The notification unit notifies occurrence of the misregistration when the determination unit determines that the driving state is abnormal, based on the difference amount of any one color.

2. 发明申请

US20210302894A1 IMAGE FORMING APPARATUS AND METHOD OF CORRECTING IMAGE POSITIONAL DEVIATION 有权
公开(公告)号：US20210302894A1
公开(公告)日：2021-09-30
申请号：US17197219
申请日：2021-03-10
申请人： Katsuhiko MAEDA
发明人： Katsuhiko MAEDA
IPC分类号： G03G15/00
摘要： An image forming apparatus includes a light beam scanner to scan an image bearer by a light beam according to data on a pattern for image positional deviation correction and a developing device to develop a latent image of the pattern. The pattern is formed on the image bearer by scanning performed by the light beam scanner. The image forming apparatus includes a transfer belt to transfer the pattern to a medium, a sensor to read the pattern to obtain an amount of image positional deviation, a skew correction device to adjust a tilt of an optical member of the light beam scanner according to a skew amount to correct a skew and perform the image positional deviation correction according to the amount of image positional deviation, and circuitry to drive the skew correction device before the image positional deviation correction.

3. 发明授权

US11126108B2 Image forming apparatus and image forming method for correcting a position of a target image 有权
公开(公告)号：US11126108B2
公开(公告)日：2021-09-21
申请号：US16935392
申请日：2020-07-22
申请人： Katsuhiko Maeda
发明人： Katsuhiko Maeda
IPC分类号： G03G15/04 , G03G15/043 , G02B26/12
摘要： An image forming apparatus includes an image forming device and a control device. The image forming device forms an image on a recording medium. The control device controls an image forming process. The control device includes circuitry. The circuitry changes a plurality of partial images in a target image into a certain state. The target image is to be formed on the recording medium. The plurality of partial images are to be formed peripheral to a plurality of pattern images. Each of the plurality of pattern images is to be formed at a certain position on the recording medium. The circuitry further controls the image forming device to form the target image including the changed plurality of partial images and the plurality of pattern images on the recording medium, and corrects a position of the target image based on a detection result of the formed plurality of pattern images.

4. 发明授权

US09310708B2 Optical scanning device, image forming apparatus, and optical scanning method 有权
标题翻译：光学扫描装置，成像装置和光学扫描方法
公开(公告)号：US09310708B2
公开(公告)日：2016-04-12
申请号：US14334995
申请日：2014-07-18
申请人： Katsuhiko Maeda , Tadashi Shinohara , Yuugo Matsuura
发明人： Katsuhiko Maeda , Tadashi Shinohara , Yuugo Matsuura
IPC分类号： B41J2/385 , B41J2/47 , G03G15/043 , G03G15/04
CPC分类号： G03G15/043 , G03G15/04072
摘要： An optical scanning device includes a light source emitting light to form an image by optical scanning; and a control section generating a control signal, which is for turning on and off the light source, based on an image signal. Further, the control section generates a pulse signal having a predetermined time width when the image signal indicates that the light source is to be turned off.
摘要翻译：光学扫描装置包括通过光学扫描发光以形成图像的光源; 以及控制部分，其基于图像信号产生用于打开和关闭光源的控制信号。此外，当图像信号指示要关闭光源时，控制部分产生具有预定时间宽度的脉冲信号。

5. 发明申请

US20150316870A1 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：US20150316870A1
公开(公告)日：2015-11-05
申请号：US14698648
申请日：2015-04-28
申请人： Katsuhiko Maeda
发明人： Katsuhiko Maeda
IPC分类号： G03G15/043
CPC分类号： G03G15/6564 , G03G15/043 , G03G2215/00409 , G03G2215/00599
摘要： An image forming apparatus for forming an image on a recording medium includes a first photoconductor on which a first intermediate image of a first color is formed; a second photoconductor on which a second intermediate image of a second color is formed, the second color being different from the first color; first and second light sources configured to emit light to the first and second photoconductors, respectively; a light source control unit configured to control the first light source to emit light according to a light emission control signal; a conveyance control signal generation unit configured to generate a conveyance control signal based on the light emitted from the first light source according to the light emission control signal; and a conveyance unit configured to convey the recording medium based on the conveyance control signal, upon transferring the second intermediate image onto the recording medium.
摘要翻译：用于在记录介质上形成图像的图像形成装置包括：第一感光体，其上形成有第一颜色的第一中间图像; 形成有第二颜色的第二中间图像的第二感光体，所述第二颜色不同于所述第一颜色; 第一和第二光源被配置为分别向第一和第二光电导体发光; 光源控制单元，被配置为根据发光控制信号控制所述第一光源发光; 输送控制信号生成部，其根据所述发光控制信号，根据从所述第一光源发出的光产生输送控制信号; 以及输送单元，其被配置为在将所述第二中间图像转印到所述记录介质上时基于所述输送控制信号传送所述记录介质。

6. 发明授权

US09170516B2 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：US09170516B2
公开(公告)日：2015-10-27
申请号：US14020091
申请日：2013-09-06
申请人： Yuichiro Shukuya , Katsuhiko Maeda
发明人： Yuichiro Shukuya , Katsuhiko Maeda
IPC分类号： G03G15/00 , G03G13/01 , G03G15/01
CPC分类号： G03G13/01 , G03G15/0105 , G03G15/5058 , G03G2215/0129 , G03G2215/0161
摘要： An image forming apparatus includes: an image forming unit that forms a pattern image for image quality adjustment on an image carrier; a detection unit that detects the pattern image for the image quality adjustment; an image quality adjustment control unit that controls an image quality adjustment process in accordance with a result of detection of the detection unit; a reception unit that receives a color mode selected from among a plurality of kinds of color modes; and a calculation unit that calculates a total pattern length so that a total length of the pattern image for the image quality adjustment in a sub-scanning direction is equal in any of the color modes, wherein the image forming unit forms the pattern image for the image quality adjustment so that the total length of the pattern image for the image quality adjustment is equal to the calculated total pattern length.
摘要翻译：图像形成装置包括：图像形成单元，其在图像载体上形成用于图像质量调整的图案图像; 检测单元，其检测用于图像质量调整的图案图像; 图像质量调整控制单元，其根据检测单元的检测结果来控制图像质量调整处理; 接收单元，其接收从多种颜色模式中选择的颜色模式; 以及计算单元，其计算总图案长度，使得在任何一种颜色模式中，在副扫描方向上的图像质量调整的图案图像的总长度相等，其中，图像形成单元形成用于图像质量调整，使得图像质量调整的图案图像的总长度等于计算的总图案长度。

7. 发明授权

US08422903B2 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：US08422903B2
公开(公告)日：2013-04-16
申请号：US12107387
申请日：2008-04-22
申请人： Katsuhiko Maeda
发明人： Katsuhiko Maeda
IPC分类号： G03G15/00 , G03G15/01
CPC分类号： G03G15/5058 , G03G15/0194 , G03G2215/00059 , G03G2215/0161
摘要： A pattern forming unit forms a pattern for correcting a position shift of an image. A detecting unit detects the pattern. A measuring unit measures a time from a start of a control signal for controlling timing to start forming the image until a detection of the pattern. A control unit controls a position of forming the image based on the time measured by the measuring unit.
摘要翻译：图案形成单元形成用于校正图像的位置偏移的图案。检测单元检测图案。测量单元测量从用于控制定时开始的控制信号开始的时间开始形成图像直到检测图案。控制单元基于由测量单元测量的时间来控制形成图像的位置。

8. 发明申请

US20100206808A1 ACTIVATED SLUDGE MATERIAL, METHOD FOR REDUCING EXCESS SLUDGE PRODUCTION IN BIOREACTOR, AND METHOD OF CONTROLLING BIOREACTOR 有权
标题翻译：活性污泥材料，降低生物反应器中过剩污泥生产的方法，以及控制生物反应器的方法
公开(公告)号：US20100206808A1
公开(公告)日：2010-08-19
申请号：US12675600
申请日：2008-08-26
申请人： Katsuhiko Maeda , Minoru Okamoto
发明人： Katsuhiko Maeda , Minoru Okamoto
IPC分类号： C02F3/12 , C12N9/24
CPC分类号： C02F3/342 , C02F3/006 , C02F3/341 , C02F3/348 , C02F2103/20 , C02F2103/22 , C02F2103/26 , C02F2103/32 , C02F2209/36 , C02F2303/06
摘要： Excess sludge production in a bioreactor of a wastewater treatment plant in which excess sludge is being produced is reduced by adding an activated sludge material having a chitinase specific activity of at least 150 Units/g-MLSS and a pectinase specific activity of at least 120 Units/g-MLSS to the bioreactor. After the addition of the activated sludge material, the bioreactor is controlled by adding the activated sludge material when any one of the chitinase activity, the pectinase activity, and the protease specific of the sludge in the bioreactor drops below the lower limits of 50 Units/L, 40 Units/L, and 0.3 Units/L, respectively.
摘要翻译：通过添加具有至少150单位/ g-MLSS的几丁质酶比活性和至少120单位的果胶酶特异性活性的活性污泥材料，可以减少生产过剩污泥的废水处理厂的生物反应器中的过剩污泥生产 / g-MLSS到生物反应器。添加活性污泥材料后，生物反应器中的几丁质酶活性，果胶酶活性和污泥蛋白酶特异性中的任何一种下降到50单位/ L，40单位/ L，0.3单位/ L。

9. 发明授权

US07742377B2 Image forming method, apparatus and computer-readable recording medium having image forming program 失效
标题翻译：具有图像形成程序的图像形成方法，装置和计算机可读记录介质
公开(公告)号：US07742377B2
公开(公告)日：2010-06-22
申请号：US11755865
申请日：2007-05-31
申请人： Katsuhiko Maeda
发明人： Katsuhiko Maeda
IPC分类号： G11B7/00
CPC分类号： G03G15/0415 , G02B26/127 , G03G15/04072 , G03G15/0435 , G03G2215/0404 , G06K15/1219
摘要： An image forming apparatus at least includes a photoreceptor, a light emitter, a detector and a controller. The light emitter irradiates the photoreceptor with a laser beam so as to form an electrostatic latent image thereon. The detector detects an incident amount of the laser beam falling on a light receiving portion of the detector on a main scan line. The controller changes at least one of a detection sensitivity of the detector for a laser beam and an emission amount of the laser beam emitted from the light emitter when the incident amount of the laser beam detected by the detector is not greater than a predetermined value.
摘要翻译：图像形成装置至少包括感光体，发光体，检测器和控制器。光发射器用激光束照射感光体，以在其上形成静电潜像。检测器检测在主扫描线上落在检测器的光接收部分上的激光束的入射量。当检测器检测到的激光束的入射量不大于预定值时，控制器改变激光束检测器的检测灵敏度和从发光器发射的激光束的发射量中的至少一个。

10. 发明授权

US07679634B2 Method and apparatus for image forming capable of detecting a reference signal for a lighting control 有权
标题翻译：用于图像形成的方法和装置，其能够检测用于照明控制的参考信号
公开(公告)号：US07679634B2
公开(公告)日：2010-03-16
申请号：US11563563
申请日：2006-11-27
申请人： Kunihiro Komai , Katsuhiko Maeda
发明人： Kunihiro Komai , Katsuhiko Maeda
IPC分类号： B41J2/435 , B41J2/47
CPC分类号： G02B26/123
摘要： An image forming apparatus includes a light emission source, a polygon mirror, a plurality of image carrying members, an optical detection mechanism, and an instruction mechanism. The light emission source outputs a plurality of optical beams in accordance with image data. The polygon mirror receives the optical beams at different mirror points, and deflects the beams into a first plurality of scanning optical beams in given directions to scan on predetermined scanning lines in a main scanning direction. The plurality of image carrying members rotating in a sub-scanning direction receive the first plurality of scanning optical beams to form primary separate color images. The optical detection mechanism detects a second plurality of scanning optical beams included in the first plurality of scanning optical beams. The instruction mechanism instructs the light emission source to light on and off at timings based on a plurality of detection signals from the optical detection mechanism.
摘要翻译：图像形成装置包括发光源，多面镜，多个图像承载构件，光学检测机构和指令机构。发光源根据图像数据输出多个光束。多面镜在不同的镜像点处接收光束，并且将光束沿给定方向偏转成第一多个扫描光束，以在主扫描方向上的预定扫描线上扫描。多个沿副扫描方向旋转的图像承载构件接收第一多个扫描光束以形成初级分离的彩色图像。光检测机构检测包括在第一多个扫描光束中的第二多个扫描光束。基于来自光检测机构的多个检测信号，指示机构指示发光源在定时点亮和关闭。

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