公开(公告)号：US20210379901A1

公开(公告)日：2021-12-09

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.

公开(公告)号：US20210223715A1

公开(公告)日：2021-07-22

申请号：US17256347

申请日：2018-11-07

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

Inventor： Kenneth K SMITH ,  Ji-Won MOON ,  Min-Chul LEE ,  Andrew CHICK ,  Matthew STOREY ,  Jefferson Blake WEST ,  Zackary Thomas HICKMAN ,  Eun-Kyung YUN ,  Yoona MIN ,  Pratik SHAH

IPC: G03G15/08 ,  G03G15/00 ,  G01F13/00

Abstract: An image forming apparatus and method for determining a toner level and providing a notification are provided. The method of operating an image forming apparatus includes counting a number of times a lower toner hopper receives toner from an in-situ refillable upper toner hopper, calculating an estimate of toner volume transferred from the lower toner hopper to a surface of a photosensitive drum, determining an amount of toner consumed from the in-situ refillable upper toner hopper based on the number of times the lower toner hopper receives toner from the in-situ refillable upper toner hopper and the estimate of toner volume transferred from the lower toner hopper to the surface of the photosensitive drum, and generating an upper toner hopper refill notification when the amount of toner consumed from the in-situ refillable upper toner hopper is determined to exceed a threshold value.

公开(公告)号：US20230017982A1

公开(公告)日：2023-01-19

申请号：US17954638

申请日：2022-09-28

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: An example print material replenishment device includes a container to contain print material, a dispensing end to engage a fill port of a printing device, the dispensing end including an opening that is offset from a center axis of the container, and a rotatable cover coupled to the dispensing end, the rotatable cover to expose the opening of the dispensing end based on a rotation of the print material replenishment device.

公开(公告)号：US20210316555A1

公开(公告)日：2021-10-14

申请号：US17274267

申请日：2018-10-08

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

Inventor： Andrew CHICK ,  Pratik SHAH ,  Kenneth K SMITH ,  Adam L HORNSTEIN ,  Dustin C ROSING ,  Richard MOTZKUS

IPC: B41J2/175

Abstract: Examples dis closed herein relate to identifying an amount of remaining supply of a print material, selecting one of a plurality of threshold ranges associated with the amount of remaining print material, and updating a visual indicator indicative of the selected one of the plurality of threshold ranges.