公开(公告)号：US20240345508A1

公开(公告)日：2024-10-17

申请号：US18755407

申请日：2024-06-26

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Hideshi Nishiyama ,  Keita Shimizu

IPC: G03G15/08

CPC classification number: G03G15/0889 ,  G03G15/0865 ,  G03G15/0886 ,  G03G15/0891 ,  G03G2215/0692 ,  G03G2215/0827 ,  G03G2215/085

Abstract: Toner cartridge includes a housing, an agitator, an auger, a first protrusion, and a second protrusion. The housing includes a first toner accommodating portion having and a second toner accommodating portion. The auger is rotatable about a second axis extending in a first direction and is configured to convey toner from a first toner accommodating portion to the second toner accommodating portion. The first protrusion is positioned at a first side of the second toner accommodating portion. The first protrusion extends in the first direction. The second protrusion is positioned at a second side of the second toner accommodating portion and extends in the first direction.

公开(公告)号：US12117745B2

公开(公告)日：2024-10-15

申请号：US18067827

申请日：2022-12-19

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Nao Itabashi ,  Naoya Kamimura

IPC: G03G15/08 ,  G03G15/06 ,  G03G21/16 ,  G03G21/18

CPC classification number: G03G15/0889 ,  G03G15/065 ,  G03G15/0865 ,  G03G21/1676 ,  G03G21/1864 ,  G03G21/1896

Abstract: In a cartridge, a housing has a developer accommodating portion and includes a first side wall and a second side wall. A coupling member is disposed at a position opposite to the developer accommodating portion with respect to the first side wall. A detection body is disposed at a position opposite to the developer accommodating portion with respect to the second side wall. A first driving force transmission member is positioned at the same side with the coupling member with respect to the first side wall, and transmits driving force from the coupling member to a rotating member. A second driving force transmission member is positioned at the same side with the detection body with respect to the second side wall, and transmits driving force from the rotating member to the detection body.

公开(公告)号：US20240337968A1

公开(公告)日：2024-10-10

申请号：US18681564

申请日：2022-06-30

Applicant: Michiharu SUZUKI ,  Naoto SUZUKI ,  Kenji HONJOH ,  Nobuo KUWABARA ,  Yuta AZEYANAGI ,  Haruki NAGATA ,  Shota YAMAMOTO

Inventor： Michiharu SUZUKI ,  Naoto SUZUKI ,  Kenji HONJOH ,  Nobuo KUWABARA ,  Yuta AZEYANAGI ,  Haruki NAGATA ,  Shota YAMAMOTO

IPC: G03G15/08 ,  G03G21/16

CPC classification number: G03G15/0891 ,  G03G15/0865 ,  G03G15/0886 ,  G03G15/0896 ,  G03G21/1633

Abstract: A developer supply device for supplying developer contained in a developer container toward a developing device in an apparatus body of an image forming apparatus includes a conveyance passage, a developer receiving portion, a sub-hopper, and a conveying tube. The conveyance passage delivers the developer discharged from the developer container. The developer receiving portion is detachable and attachable with respect to the developer container. The sub-hopper is detachable and attachable with respect to the developing device and stores the developer discharged toward the developing device. The flexible conveying tube has a first end portion coupled to the developer receiving portion and a second end portion coupled to the sub-hopper, and conveys the developer from the developer receiving portion to the sub-hopper. The developer supply device is detachable from and attachable to the apparatus body with a connection among the developer receiving portion, the sub-hopper, and the conveying tube being maintained.

公开(公告)号：US20240323305A1

公开(公告)日：2024-09-26

申请号：US18731790

申请日：2024-06-03

Applicant: LEXMARK INTERNATIONAL, INC.

Inventor： STEPHEN PORTER BUSH ,  TIMOTHY JOHN RADEMACHER ,  CHRISTOPHER ALAN ADKINS

IPC: H04N1/44 ,  B41J2/175 ,  G03G15/00 ,  G03G15/08 ,  G03G21/18 ,  G06F21/33 ,  H04L9/32 ,  H04N1/00

CPC classification number: H04N1/4426 ,  B41J2/17503 ,  G03G15/50 ,  G06F21/335 ,  H04L9/3268 ,  H04N1/00015 ,  H04N1/00034 ,  H04N1/00058 ,  H04N1/00965 ,  H04N1/0097 ,  G03G15/0863 ,  G03G15/0865 ,  G03G15/553 ,  G03G15/556 ,  G03G21/1882

Abstract: A supply item has toner for use in an imaging device. A chip has memory storing quanta indicating allowed usage of the supply item over its lifetime and a multiplier correlating the quanta to toner mass. The imaging device requires quanta to conduct imaging operations and loads the quanta and multiplier by way of a certificate stored in the memory. The imaging device retrieves quanta from the chip over time and both devices keep tally. Initialization between the supply item and imaging device includes providing encrypted and unencrypted instances of firmware versions and certificates from the supply item that the imaging device can compare for security. Alternatively, the supply item defines a fuser assembly, imaging unit, intermediate transfer member, or other component installed for use in the imaging device.

公开(公告)号：US20240302790A1

公开(公告)日：2024-09-12

申请号：US18591024

申请日：2024-02-29

Applicant: Taira OTSUKA ,  Hiroshi HOSOKAWA ,  Kazuki MATSUMOTO ,  Hiroyuki SUGIYAMA

Inventor： Taira OTSUKA ,  Hiroshi HOSOKAWA ,  Kazuki MATSUMOTO ,  Hiroyuki SUGIYAMA

IPC: G03G21/20 ,  G03G15/08 ,  G03G21/18

CPC classification number: G03G21/20 ,  G03G15/0865 ,  G03G15/0891 ,  G03G21/1814

Abstract: A developing device includes a plurality of conveyance passages, an opening portion, and a filter. Developer is conveyed in the plurality of conveyance passages in a longitudinal direction of the developing device. The opening portion is disposed in one conveyance passage of the plurality of conveyance passages and communicates with an outside of the developing device. The filter is fitted in the opening portion and has both a collecting ability to collect the developer and a ventilation ability to ventilate the one conveyance passage to the outside of the developing device. The collecting ability of the filter is higher in a high-bulk portion in which bulk of the developer increases in the one conveyance passage than in a low-bulk portion in which the bulk of the developer decreases in the one conveyance passage. The ventilation ability of the filter is lower in the high-bulk portion than in the low-bulk portion.

公开(公告)号：US12055871B2

公开(公告)日：2024-08-06

申请号：US18186076

申请日：2023-03-17

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tomohisa Soda

IPC: G03G15/08

CPC classification number: G03G15/0862 ,  G03G15/0865 ,  G03G15/0879

Abstract: A toner supply device includes a supply pipe, a first conveying pipe, a second conveying pipe, a first conveying member, a second conveying member, and a loosening member. The loosening member is arranged in the supply pipe reciprocatably in the extending direction of the supply pipe. The first and second conveying pipes are arranged side by side in a direction intersecting their extending directions so as to join together at a confluence portion to which the supply pipe is connected. The loosening member is coupled with each of the first and second conveying members at the confluence portion and extends inward of the supply pipe.

公开(公告)号：US12032309B2

公开(公告)日：2024-07-09

申请号：US17855973

申请日：2022-07-01

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akinori Mitsumata ,  Takeo Kawanami ,  Masaaki Sato

IPC: G03G15/08 ,  G03G15/00 ,  G03G21/16

CPC classification number: G03G15/0877 ,  G03G15/0865 ,  G03G15/6552 ,  G03G15/6573 ,  G03G21/1633 ,  G03G15/0874 ,  G03G2215/00421 ,  G03G2215/0636

Abstract: An image forming apparatus includes a stacking portion which is a part of a top surface of an exterior of the image forming apparatus. The stacking portion is positioned downstream of a discharging outlet in a discharging direction and on which the recording material discharged from the discharging outlet is stacked and includes a first surface on which the recording material discharged from the discharging outlet is stacked, and a second surface which is positioned outward with respect to the discharging outlet in a width direction orthogonal to the discharging direction. A supplying inlet is located below the first surface, wherein a downstream end of the first surface is positioned downstream of a downstream end of the second surface in the discharging direction, and wherein the first surface is rotatable to expose the supplying inlet.

公开(公告)号：US20240201612A1

公开(公告)日：2024-06-20

申请号：US18287111

申请日：2022-04-19

Applicant: DOWA ELECTRONICS MATERIALS CO., LTD. ,  DOWA IP CREATION CO., LTD.

Inventor： Shinya SASAKI

IPC: G03G9/107 ,  G03G15/08

CPC classification number: G03G9/108 ,  G03G9/1075 ,  G03G15/0865

Abstract: A carrier core material includes ferrite particles, contains CaSiO3, and has a true density at least equal to 3.5 g/cm3 and at most equal to 4.5 g/cm3. A particle strength index calculated from formula (1) is preferably at most equal to 1.5% by volume. (1): Particle strength index=V2−V1 (In the formula, V1: cumulative value (% by volume) of particle size 22 μm or less in cumulative particle size distribution of carrier core material before crushing test, and V2: cumulative value (% by volume) of particle size 22 μm or less in cumulative particle size distribution of carrier core material after crushing test) Crushing test conditions: 30 g of carrier core material crushed using a sample mill for 60 seconds at a rotational speed of 14000 rpm.

公开(公告)号：US20240192625A1

公开(公告)日：2024-06-13

申请号：US18535642

申请日：2023-12-11

Applicant: SHARP KABUSHIKI KAISHA

Inventor： SHOHEI FUKUMOTO

IPC: G03G15/00 ,  G03G15/08

CPC classification number: G03G15/556 ,  G03G15/086 ,  G03G15/0865 ,  G03G15/0889 ,  G03G2215/0819

Abstract: According to an image forming device of the present disclosure, a required replenishment amount is calculated based on a printing rate derived from image data, and toner is replenished to a development device by a toner replenishment device for a required replenishment time in accordance with the required replenishment amount. Then, a time difference obtained by subtracting a printing time per sheet from the required replenishment time is accumulated, and a determination regarding forcible replenishment of the toner is made based on a comparison between an accumulated required replenishment time and an accumulated required replenishment time threshold value.

公开(公告)号：US20240184239A1

公开(公告)日：2024-06-06

申请号：US18482515

申请日：2023-10-06

Applicant: Brother Kogyo Kabushiki Kaisha

Inventor： Masahiro Ishii ,  Fumio Morita

IPC: G03G15/00 ,  G03G15/08 ,  G03G21/16

CPC classification number: G03G15/80 ,  G03G15/0865 ,  G03G15/55 ,  G03G21/1652 ,  G03G2221/163 ,  G03G2221/1823

Abstract: A developer cartridge according to one aspect is attachable to a photoconductor unit that comprises a photoconductive drum. The developer cartridge may comprise a main body having an opening, the main body comprising an electric circuit, a front cover configured to move to an opening position in which the opening of the main body is exposed and to a closing position in which the opening of the main body is closed, a first terminal electrically connected to the electric circuit, a photosensitive drum, and a developer cartridge comprising a developing roller, developing frame having a pressed portion, memory unit and second terminal. The front cover may include a pressing portion configured to press the pressed portion of the developing frame in a direction from the developing roller toward the photosensitive drum, and wherein the second terminal faces to the front cover when the front cover is in the closed position.