公开(公告)号：US11927909B2

公开(公告)日：2024-03-12

申请号：US18024492

申请日：2020-09-28

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Elizabeth A. Swanson ,  Gabriel S. McDaniel ,  Jeffrey H. Luke

IPC: G03G21/16 ,  F16D27/02 ,  G03G21/18

CPC classification number: G03G21/1647 ,  F16D27/02 ,  G03G21/1676 ,  G03G21/186 ,  G03G2221/1657

Abstract: An image forming apparatus includes a development cartridge having a developing roller. A coupler for the image forming apparatus includes a shaft and a coupling structure to rotate the developing roller. The coupling structure is disposed at an end part of the shaft, is movable along an axial direction of the shaft and coupleable with another coupling structure of a print engine of the image forming apparatus. The coupling structure includes a body, a magnet disposed in the body to cause the coupling structure to be attracted to the another coupling structure so that the coupling structure is aligned with the another coupling structure, and a plurality of protrusions which protrude from the body in the axial direction to engage with the another coupling structure, the plurality of protrusions having at least one side with an inclined face.

公开(公告)号：US11927905B2

公开(公告)日：2024-03-12

申请号：US17910055

申请日：2020-05-26

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Jeffrey H. Luke ,  Gabriel S. McDaniel ,  Scott K Hymas

IPC: G03G15/08 ,  G03G15/00

CPC classification number: G03G15/556 ,  G03G15/5079

Abstract: In response to detecting that a remaining supply of print material of a first cartridge has reached a first threshold, a printing device transmits a request. In response to detecting that a second cartridge has replaced the first cartridge, the printing device determines whether the remaining supply had reached a second threshold and whether a token permitting usage of the second cartridge was received responsive to the request. In response to determining that the remaining supply had reached the second threshold and that the token was received, the printing device prints with print material from the second cartridge.

公开(公告)号：US11827029B2

公开(公告)日：2023-11-28

申请号：US17321306

申请日：2021-05-14

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Mark Q. Shaw ,  Scott K. Hymas ,  Jeffrey H. Luke ,  Gabriel Scott McDaniel

IPC: B41J2/175 ,  G06N20/00 ,  G06F3/12

CPC classification number: B41J2/17566 ,  B41J2/17506 ,  G06F3/1219 ,  G06F3/1239 ,  G06N20/00 ,  B41J2002/17569 ,  B41J2002/17589

Abstract: An example method comprises identifying a plurality of supply levels corresponding to a set of print supplies of a print device. The example method further comprises coordinating depletion of the set of print supplies by selecting between black print and process black print for a print job of the print device based on the plurality of supply levels.

公开(公告)号：US11806734B2

公开(公告)日：2023-11-07

申请号：US17048412

申请日：2018-08-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Mathew Lavigne ,  Jeffrey H. Luke

IPC: B05B1/32 ,  B33Y40/00 ,  B29C64/321 ,  B41J2/175

CPC classification number: B05B1/326 ,  B29C64/321 ,  B33Y40/00 ,  B41J2/17506 ,  B41J2/17596

Abstract: An example of a device (100) may include a valve body (108); a printing substance dispensing nozzle (110) rotatable within the valve body (108) between a sealed orientation and a dispensing orientation; and a locking rod extending through a locking rod window (146) in the valve body (108) and into a locking rod channel (144) in the printing substance dispensing nozzle (110), wherein the locking rod is movable within the locking rod window (146) between a first position, fixing the printing substance dispensing nozzle (110) in the sealed orientation, and a second position allowing rotation of the printing substance dispensing nozzle (110) to the dispensing orientation.

公开(公告)号：US11803133B2

公开(公告)日：2023-10-31

申请号：US17051046

申请日：2018-08-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Mathew Lavigne ,  Jeffrey H. Luke ,  Matthew James Storey ,  Jefferson Blake West ,  Bennett Alexander Nadeau ,  Zackary Thomas Hickman ,  An Tran

IPC: G03G15/08

CPC classification number: G03G15/087 ,  G03G15/0886

Abstract: Examples described herein relate to a print particle refill device consistent with the disclosure. For instance, a print particle refill device may comprise a cap disk to form a barrier between the print particle refill device and a receptacle, a first liner adjacent to the cap disk to seal print particles in the print particle refill device, and an actuating liner to wipe print particles, when present, from the receptacle.

公开(公告)号：US11731430B2

公开(公告)日：2023-08-22

申请号：US17413691

申请日：2019-07-08

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Justin Pettingill ,  Gabriel McDaniel ,  Sean Daniel FitzGerald ,  Jeffrey H. Luke

IPC: B41J2/175 ,  B41J29/38 ,  G03G15/08 ,  G03G21/18

CPC classification number: B41J2/17509 ,  B41J29/38 ,  G03G15/0894 ,  G03G21/181

Abstract: A device is to supply printing material to a printing material container in a printing apparatus. The device includes a first container to contain printing material, a first piston movable in the first container to exert first pressure to discharge the printing material contained in the first container from the first container, a second container having an opening to the first container, and a second piston movable in the second container to exert second pressure higher than the first pressure to form a pressure gradient based on the first pressure and the second pressure through the opening. The pressure gradient is to disperse the printing material in the first container.

公开(公告)号：US20230176796A1

公开(公告)日：2023-06-08

申请号：US17921119

申请日：2020-05-26

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Jeffrey H. Luke ,  Gabriel S. McDaniel ,  Scott K. Hymas

IPC: G06F3/12 ,  G06F16/29

CPC classification number: G06F3/1219 ,  G06F3/1235 ,  G06F16/29

Abstract: The location of a printing device is determined. Environmental conditions in which the printing device operated when printing a print job are determined based on the determined location. An environmental adjustment factor for the printing device is determined based on the determined environmental conditions. A predicted print material usage of the printing device in printing the print job is adjusted based on the determined environmental adjustment factor.

公开(公告)号：US20230125716A1

公开(公告)日：2023-04-27

申请号：US17910055

申请日：2020-05-26

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Jeffrey H. Luke ,  Gabriel S. McDaniel ,  Scott K Hymas

IPC: G03G15/00

Abstract: In response to detecting that a remaining supply of print material of a first cartridge has reached a first threshold, a printing device transmits a request. In response to detecting that a second cartridge has replaced the first cartridge, the printing device determines whether the remaining supply had reached a second threshold and whether a token permitting usage of the second cartridge was received responsive to the request. In response to determining that the remaining supply had reached the second threshold and that the token was received, the printing device prints with print material from the second cartridge.

公开(公告)号：US20220363069A1

公开(公告)日：2022-11-17

申请号：US17321306

申请日：2021-05-14

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Mark Q. Shaw ,  Scott K. Hymas ,  Jeffrey H. Luke ,  Gabriel Scott McDaniel

IPC: B41J2/175 ,  G06N20/00 ,  G06F3/12

Abstract: An example method comprises identifying a plurality of supply levels corresponding to a set of print supplies of a print device. The example method further comprises coordinating depletion of the set of print supplies by selecting between black print and process black print for a print job of the print device based on the plurality of supply levels.

公开(公告)号：US11491797B2

公开(公告)日：2022-11-08

申请号：US17047219

申请日：2018-08-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Andrew P. Chick ,  Kenneth K. Smith ,  Matthew James Storey ,  Pratik Shah ,  Luke Kim ,  Sean Daniel Fitzgerald ,  Mathew Lavigne ,  Jeffrey H. Luke ,  Jiwon Moon ,  Minchul Lee ,  Corbett Benjamin Schoenfelt ,  Bennett Alexander Nadeau ,  Zackary Thomas Hickman ,  Jefferson Blake West ,  Muriel Hale Shields ,  An Tran

IPC: B41J2/175

Abstract: In some examples, a print materials container can include a dispense mechanism to dispense print materials directly to an in-situ reservoir of a printing device, a lock feature to engage a fill port during connection of the dispense mechanism to the fill port, and a valve integrated with the dispense mechanism for connecting the dispense mechanism to the fill port of the reservoir and comprising an output opening offset from a center axis of a tip of the dispense mechanism. The valve can open responsive to rotation of the valve opening with respect to the lock feature such that opposite openings align.