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1. 发明公开

US20240103419A1 IMAGE FORMING APPARATUS CAPABLE OF ADJUSTING EMISSION LIGHT AMOUNT OF LIGHT-EMITTING PORTION, AND LIGHT AMOUNT ADJUSTMENT METHOD 审中-公开
公开(公告)号：US20240103419A1
公开(公告)日：2024-03-28
申请号：US18475521
申请日：2023-09-27
申请人： KYOCERA Document Solutions Inc.
发明人： Ayato Morikami , Yasuaki Sakamoto , Masaru Watanabe
IPC分类号： G03G15/00
CPC分类号： G03G15/5041 , G03G2215/00042 , G03G2215/00059
摘要： An image forming apparatus includes first to third adjustment processing portions. The first adjustment processing portion adjusts an emission light amount of a light-emitting portion of a first sensor based on an electric signal output from a light-receiving portion of the first sensor and corresponding to regular reflection light reflected by a non-toner-adhering surface of an image-carrying member. The second adjustment processing portion adjusts an operation condition of an image forming portion based on a toner concentration of a first toner image in a specific color, that has a concentration smaller than a predetermined saturation concentration. The third adjustment processing portion adjusts an emission light amount of a light-emitting portion of a second sensor based on an electric signal output from a light-receiving portion of the second sensor and corresponding to diffuse reflection light reflected by a second toner image in the specific color, that has a predetermined reference concentration.

2. 发明公开

US20240103399A1 TONER CONCENTRATION SENSING APPARATUS CAPABLE OF ACCURATELY SENSING TONER CONCENTRATION OF TONER IMAGE, IMAGE FORMING APPARATUS, AND TONER CONCENTRATION SENSING METHOD 审中-公开
公开(公告)号：US20240103399A1
公开(公告)日：2024-03-28
申请号：US18471146
申请日：2023-09-20
申请人： KYOCERA Document Solutions Inc.
发明人： Ayato Morikami , Yasuaki Sakamoto , Masaru Watanabe , Kenichi Hayashi , Hideyuki Ogasawara , Yukiko Yoshimura
IPC分类号： G03G15/08 , G03G15/00
CPC分类号： G03G15/0855 , G03G15/5054 , G03G15/556
摘要： A toner concentration sensing apparatus includes a first acquisition processing portion, a second acquisition processing portion, and a third acquisition processing portion. The first acquisition processing portion acquires a first sensing value corresponding to light reflected by a first region of an image-carrying member where a toner image is not formed. The second acquisition processing portion acquires a second sensing value corresponding to light reflected by a second region of the image-carrying member where a toner image has been formed. The third acquisition processing portion acquires a component ratio of a component in the second sensing value, that corresponds to light reflected by toner adhered onto a surface of the image-carrying member, using a specific calculation formula determined based on a first relational expression based on the first sensing value and a second relational expression not based on the first sensing value, and the second sensing value.

3. 发明授权

US11815839B2 Image forming apparatus capable of adjusting image forming condition accurately, and image forming condition adjustment method 有权
公开(公告)号：US11815839B2
公开(公告)日：2023-11-14
申请号：US17932620
申请日：2022-09-15
申请人： KYOCERA Document Solutions Inc.
发明人： Keisuke Oba , Masaru Watanabe , Yasuaki Sakamoto , Kanako Kikuchi , Ayato Morikami , Yuki Nakaiwa , Koji Uno , Takuji Watanabe
IPC分类号： G03G15/00
CPC分类号： G03G15/5054 , G03G15/5058
摘要： An image forming apparatus includes a transfer processing portion, a detection processing portion, a correction processing portion, and an adjustment processing portion. The transfer processing portion transfers a detection toner image to outside an output area of a transfer object to which a toner image as an output target is transferred from an image-carrying member. The detection processing portion detects a density of the detection toner image that has been transferred to the transfer object by the transfer processing portion. The correction processing portion corrects a detection result of the detection processing portion based on an amount of toner transferred from the image-carrying member to the output area at a transfer timing when the detection toner image is transferred. The adjustment processing portion adjusts an image forming condition based on the detection result after correction by the correction processing portion.

4. 发明公开

US20230244175A1 IMAGE DENSITY MEASUREMENT METHOD AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20230244175A1
公开(公告)日：2023-08-03
申请号：US18161783
申请日：2023-01-30
申请人： KYOCERA Document Solutions Inc.
发明人： Masaru Watanabe , Yasuaki Sakamoto , Ayato Morikami , Kenichi Hayashi , Hideyuki Ogasawara , Yukiko Yoshimura
IPC分类号： G03G15/00
CPC分类号： G03G15/5025
摘要： A processor derives a plurality of unit density values which are each an average value of sensed densities for each of a plurality of unit areas sectioned for each unit length in a test toner image. The processor derives a weighted average of the plurality of unit density values to derive a test image density used for adjusting a control parameter in a printing portion. The unit length is a greatest common factor of two target lengths corresponding to perimeters of two types of target rotating members out of the plurality of rotating members. When a number of the plurality of unit areas is represented by n, n is a value obtained by subtracting 1 from an added value of a first constant and a second constant. The first constant and the second constant are values obtained by respectively dividing the two target lengths by the unit length.

5. 发明授权

US10921734B2 Image forming apparatus that determines whether to perform running-in operation 有权
公开(公告)号：US10921734B2
公开(公告)日：2021-02-16
申请号：US16809381
申请日：2020-03-04
申请人： KYOCERA Document Solutions Inc.
发明人： Masaru Watanabe
IPC分类号： G03G15/08 , G03G15/10
摘要： An image forming apparatus includes an image forming section, a controller, and storage. The storage stores therein a coverage rate of a past image specified by a past print job. The controller includes a determining section and a first calculating section. When a new print job is received, the determining section determines whether or not to perform a running-in operation by comparing a coverage rate of a new image specified by the new print job to the coverage rate of the past image stored in the storage. The first calculating section calculates an amount of toner to be supplied from a developing section to a photosensitive drum based on the coverage rate of the new image. The running-in operation is to supply the toner in the amount calculated by the first calculating section from the developing section to the photosensitive drum before the new image is formed on a sheet.

6. 发明申请

US20160116879A1 IMAGE FORMING APPARATUS AND METHOD FOR CORRECTING COLOR MISREGISTRATION BY THE SAME 有权
标题翻译：图像形成装置和用于校正颜色分散的方法
公开(公告)号：US20160116879A1
公开(公告)日：2016-04-28
申请号：US14918662
申请日：2015-10-21
申请人： KYOCERA Document Solutions Inc.
发明人： Masaru Watanabe
IPC分类号： G03G15/00 , G03G15/01
CPC分类号： G03G15/556 , G03G15/01 , G03G15/0189 , G03G15/043 , G03G15/5058 , G03G2215/0158 , G03G2215/0161
摘要： An image forming apparatus is provided to correct color misregistration and includes an image correcting unit. A toner density adjustment patch image forming section forms toner density adjustment patch images, and a toner density adjustment patch image misalignment measuring section measures amounts of misalignment of the images. Then, a color-misregistration correction patch image forming section forms color-misregistration correction patch images on a transfer member. A color-misregistration correcting section measures amounts of misalignment of the color-misregistration correction patch images to correct the color misregistration. The control unit controls the color-misregistration correction patch image forming section to change color-misregistration correction patch images to be formed in accordance with the amounts of misalignment of the toner density adjustment patch images measured by the toner density adjustment patch image misalignment measuring section.
摘要翻译：提供一种图像形成装置来校正颜色重合失调，并包括图像校正单元。调色剂浓度调节贴片图像形成部分形成调色剂浓度调节贴片图像，并且调色剂浓度调节贴片图像未对准测量部分测量图像的未对准量。然后，颜色不对齐校正贴片图像形成部分在转印部件上形成色对准校正贴片图像。颜色不对准校正部分测量颜色不对准校正片图像的不对准量，以校正颜色重合失调。控制单元控制颜色不对准校正片图像形成部分，以根据由调色剂浓度调节片图像未对准测量部测量的调色剂浓度调节片图像的未对准量来改变要形成的颜色不对准校正片图像。

7. 发明授权

US09310744B1 Image forming apparatus and method for correcting color misregistration by the same 有权
标题翻译：图像形成装置及其校正颜色重合失调的方法
公开(公告)号：US09310744B1
公开(公告)日：2016-04-12
申请号：US14918662
申请日：2015-10-21
申请人： KYOCERA Document Solutions Inc.
发明人： Masaru Watanabe
IPC分类号： G03G15/00 , G03G15/01
CPC分类号： G03G15/556 , G03G15/01 , G03G15/0189 , G03G15/043 , G03G15/5058 , G03G2215/0158 , G03G2215/0161
摘要： An image forming apparatus is provided to correct color misregistration and includes an image correcting unit. A toner density adjustment patch image forming section forms toner density adjustment patch images, and a toner density adjustment patch image misalignment measuring section measures amounts of misalignment of the images. Then, a color-misregistration correction patch image forming section forms color-misregistration correction patch images on a transfer member. A color-misregistration correcting section measures amounts of misalignment of the color-misregistration correction patch images to correct the color misregistration. The control unit controls the color-misregistration correction patch image forming section to change color-misregistration correction patch images to be formed in accordance with the amounts of misalignment of the toner density adjustment patch images measured by the toner density adjustment patch image misalignment measuring section.
摘要翻译：提供一种图像形成装置来校正颜色重合失调，并包括图像校正单元。调色剂浓度调节贴片图像形成部分形成调色剂浓度调节贴片图像，并且调色剂浓度调节贴片图像未对准测量部分测量图像的未对准量。然后，颜色不对齐校正贴片图像形成部分在转印部件上形成色对准校正贴片图像。颜色不对准校正部分测量颜色不对准校正片图像的不对准量，以校正颜色重合失调。控制单元控制颜色不对准校正片图像形成部分，以根据由调色剂浓度调节片图像未对准测量部测量的调色剂浓度调节片图像的未对准量来改变要形成的颜色不对准校正片图像。

8. 发明授权

US11971676B2 Image density measurement method and image forming apparatus 有权
公开(公告)号：US11971676B2
公开(公告)日：2024-04-30
申请号：US18161783
申请日：2023-01-30
申请人： KYOCERA Document Solutions Inc.
发明人： Masaru Watanabe , Yasuaki Sakamoto , Ayato Morikami , Kenichi Hayashi , Hideyuki Ogasawara , Yukiko Yoshimura
IPC分类号： G03G15/00
CPC分类号： G03G15/5025 , G03G15/5058
摘要： A processor derives a plurality of unit density values which are each an average value of sensed densities for each of a plurality of unit areas sectioned for each unit length in a test toner image. The processor derives a weighted average of the plurality of unit density values to derive a test image density used for adjusting a control parameter in a printing portion. The unit length is a greatest common factor of two target lengths corresponding to perimeters of two types of target rotating members out of the plurality of rotating members. When a number of the plurality of unit areas is represented by n, n is a value obtained by subtracting 1 from an added value of a first constant and a second constant. The first constant and the second constant are values obtained by respectively dividing the two target lengths by the unit length.

9. 发明申请

US20180004142A1 IMAGE FORMING APPARATUS 有权
公开(公告)号：US20180004142A1
公开(公告)日：2018-01-04
申请号：US15636606
申请日：2017-06-28
申请人： KYOCERA Document Solutions Inc.
发明人： Masaru Watanabe
IPC分类号： G03G15/00
CPC分类号： G03G15/556 , G03G15/5041 , G03G15/5054 , G03G15/5058
摘要： A density correction unit (a1) obtains density measurement values of a surface in a measurement section of an image carrier at a first round, (a2) calculates as section background data at the first round respective differences between the density measurement values at the first round and an average value thereof, (a3) obtains density measurement values of a surface at least in the measurement section at a second round, (a4) calculates as section background data at the second round respective differences between the density measurement values at the second round and an average value thereof in a specific section with the same length as the measurement section, and (a5) determines the rotation period on the basis of a correlation between the section background data at the first round and at the second round. Here the measurement section is a part in a circulating direction of the image carrier.

10. 发明公开

US20230213880A1 ADJUSTMENT METHOD FOR IMAGE FORMING APPARATUS, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20230213880A1
公开(公告)日：2023-07-06
申请号：US18147174
申请日：2022-12-28
申请人： KYOCERA Document Solutions Inc.
发明人： Masaru Watanabe , Kanako Kikuchi , Yasuaki Sakamoto , Ayato Morikami , Yuki Nakaiwa , Keisuke Oba , Koji Uno , Takuji Watanabe
IPC分类号： G03G15/00 , G03G15/01
CPC分类号： G03G15/5041 , G03G15/5058 , G03G15/0131 , G03G2215/00059
摘要： A processor causes a printing portion to execute, when first conveying processing is executed, test print processing for executing processing of forming a plurality of test toner images on a sheet under a print condition that differs for each of the plurality of test toner images. The processor acquires a plurality of first sensing densities when the first conveying processing is executed. The processor causes the printing portion to execute the test print processing when second conveying processing is executed. The processor acquires a plurality of second sensing densities when the second conveying processing is executed. The processor compares the plurality of first sensing densities and the plurality of second sensing densities to adjust the print condition in the print processing when the second conveying processing is executed.

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