公开(公告)号：US20240103399A1

公开(公告)日：2024-03-28

申请号：US18471146

申请日：2023-09-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ayato Morikami ,  Yasuaki Sakamoto ,  Masaru Watanabe ,  Kenichi Hayashi ,  Hideyuki Ogasawara ,  Yukiko Yoshimura

IPC: G03G15/08 ,  G03G15/00

CPC classification number: G03G15/0855 ,  G03G15/5054 ,  G03G15/556

Abstract: 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.

公开(公告)号：US20230244175A1

公开(公告)日：2023-08-03

申请号：US18161783

申请日：2023-01-30

Applicant: KYOCERA Document Solutions Inc.

Inventor： Masaru Watanabe ,  Yasuaki Sakamoto ,  Ayato Morikami ,  Kenichi Hayashi ,  Hideyuki Ogasawara ,  Yukiko Yoshimura

IPC: G03G15/00

CPC classification number: G03G15/5025

Abstract: 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.

公开(公告)号：US12259672B2

公开(公告)日：2025-03-25

申请号：US18471146

申请日：2023-09-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ayato Morikami ,  Yasuaki Sakamoto ,  Masaru Watanabe ,  Kenichi Hayashi ,  Hideyuki Ogasawara ,  Yukiko Yoshimura

IPC: G03G15/00

Abstract: 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.

公开(公告)号：US20240329584A1

公开(公告)日：2024-10-03

申请号：US18617244

申请日：2024-03-26

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yasuaki Sakamoto ,  Masaru Watanabe ,  Kenichi Hayashi ,  Ayato Morikami ,  Hideyuki Ogasawara ,  Yukiko Yoshimura

IPC: G03G15/00

CPC classification number: G03G15/5041 ,  G03G15/5045 ,  G03G15/5062

Abstract: An image forming apparatus includes an adjustment processing portion, an acquisition processing portion, and a determination processing portion. Each time an adjustment condition is satisfied during execution of an image forming process, the adjustment processing portion uses toner to adjust one adjustment target selected in accordance with a specific order among a plurality of adjustment targets related to image quality of an output image output by the image forming process. The acquisition processing portion acquires variation amount information related to an amount of variation in a state value related to an image forming portion caused by a start of the image forming process. The determination processing portion determines an adjustment target to be adjusted first after the start of the image forming process by the adjustment processing portion, based on the variation amount information acquired by the acquisition processing portion.

公开(公告)号：US11971676B2

公开(公告)日：2024-04-30

申请号：US18161783

申请日：2023-01-30

Applicant: KYOCERA Document Solutions Inc.

Inventor： Masaru Watanabe ,  Yasuaki Sakamoto ,  Ayato Morikami ,  Kenichi Hayashi ,  Hideyuki Ogasawara ,  Yukiko Yoshimura

IPC: G03G15/00

CPC classification number: G03G15/5025 ,  G03G15/5058

Abstract: 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.