公开(公告)号：US20210255575A1

公开(公告)日：2021-08-19

申请号：US17171378

申请日：2021-02-09

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kazuhiro OKAMOTO

IPC: G03G21/12 ,  G03G21/10 ,  B65H1/26

Abstract: An image forming apparatus includes a sheet cassette, a waste developer container, a capacitance sensor, a partition conductor, and a state determination unit. The waste developer container is disposed adjacent to the sheet cassette, and the capacitance sensor is disposed between the waste developer container and the sheet cassette. The partition conductor partitions between the sheet in the sheet cassette and the capacitance sensor, and is grounded. The state determination unit determines an amount of the waste developer in the developer container, based on a detection signal of the electrostatic capacitance sensor.

公开(公告)号：US20240385548A1

公开(公告)日：2024-11-21

申请号：US18661098

申请日：2024-05-10

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kazuhiro OKAMOTO ,  Masayuki YAMADA

IPC: G03G15/01 ,  G03G15/00 ,  G03G15/16

Abstract: A transfer unit includes, as transfer rollers, a first roller and a second roller, a first bearing member, a second bearing member, a roller holder, a first urging member, a second urging member, a switching cam, a driving mechanism, a unit frame, and a secured cam. By rotating the roller holder, one of the first and second rollers is arranged opposite an image carrying member and, by rotating the switching cam, the first or second roller arranged opposite the image carrying member is arranged selectively either at a reference position or at a released position. The secured cam includes a positioning recessed portion that performs positioning of the first or second roller arranged opposite the image carrying member.

公开(公告)号：US20220291624A1

公开(公告)日：2022-09-15

申请号：US17688475

申请日：2022-03-07

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kazuhiro OKAMOTO

IPC: G03G21/10

Abstract: A toner collection device includes a toner collection container, a toner conveying passage, a side wall, a recessed sensing portion, and a detection sensor. The toner conveying passage includes a first inclined portion provided right under a toner collection port and inclined downward leftward in the left-right direction perpendicular to the up-down direction and a second inclined portion connected to a bottom end part of the first inclined portion and inclined downward frontward in the front-rear direction perpendicular to the up-down and left-right directions, with an end part of the second inclined portion on the left side in contact with the inner wall face of the toner collection container on the left side. The recessed sensing portion has an opening between a top end part of the side wall and the inner wall face of the toner collection container.