公开(公告)号：US20190171156A1

公开(公告)日：2019-06-06

申请号：US16203368

申请日：2018-11-28

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YUJI SAWA ,  SHINICHI TAKEDA ,  NORIAKI TAGUCHI ,  HIROKI KANEMITSU ,  HIDEAKI KADOWAKI

IPC: G03G21/12

Abstract: A waste toner collecting device includes a waste toner container having an opening at an upper portion, and a shutter mechanism that opens or closes the opening. The shutter mechanism includes a receiving portion including an insertion port through which the waste toner discharging unit is inserted, the receiving portion having an inner space connected with an inner space of the waste toner container through the opening, a shutter member disposed in the receiving portion to be movable between an open position and a closing position, and an urging member that urges the shutter member to the closing position. The shutter member includes a ridge on an upper portion of an outer circumferential surface. The ridge has a protrusion height corresponding to a gap between the outer circumferential surface and an inner circumferential surface of the receiving portion.

公开(公告)号：US20190163123A1

公开(公告)日：2019-05-30

申请号：US16200270

申请日：2018-11-26

Applicant: SHARP KABUSHIKI KAISHA

Inventor： HIROKI KANEMITSU ,  SHINICHI TAKEDA ,  NORIAKI TAGUCHI ,  HIROKI SHINTANI

IPC: G03G21/20

CPC classification number: G03G21/206 ,  G03G2221/1645

Abstract: An image forming apparatus includes a duct through which air taken in from outside a housing is sent into the housing, a blower fan provided at an upstream end of the duct, a toner bottle provided facing a wall surface of the duct, and a fixing section provided on a downstream side of the toner bottle. A component-facing section facing the toner bottle is formed to be smaller in cross-sectional area than a fan placement section. Therefore, by absorbing heat of air around the toner bottle via a wall of the component-facing section, the component-facing section prevents the toner bottle from becoming hot.

公开(公告)号：US20190166416A1

公开(公告)日：2019-05-30

申请号：US16202016

申请日：2018-11-27

Applicant: SHARP KABUSHIKI KAISHA

Inventor： NORIAKI TAGUCHI ,  YASUSHI NAKAMURA ,  SHINICHI TAKEDA ,  HIROKI KANEMITSU

IPC: H04R1/02 ,  H04N1/00

Abstract: An image forming apparatus has a speaker that is stored inside a housing and includes an attachment guide to which the speaker is attached on a housing front surface. The attachment guide has at least one angle deciding portion which inclines a front surface of the speaker relative to the housing front surface.

公开(公告)号：US20190235440A1

公开(公告)日：2019-08-01

申请号：US16257035

申请日：2019-01-24

Applicant: SHARP KABUSHIKI KAISHA

Inventor： NORIAKI TAGUCHI ,  SHINICHI TAKEDA ,  HIROKI KANEMITSU ,  YUJI SAWA

IPC: G03G21/20

Abstract: An image forming apparatus includes a replacement unit (developing unit) that is provided to be freely inserted into and extracted from an apparatus body, and the replacement unit is provided with a separation duct wall that constitutes a collection path through which powder scattering in the apparatus body is collected.