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：US20210232063A1

公开(公告)日：2021-07-29

申请号：US17050140

申请日：2018-08-30

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

Inventor： Andy Philip CHICK ,  Pratik Pravinkumar SHAH ,  Min-Chul LEE ,  Ji-won MOON ,  Matthew James STOREY ,  Zackary Thomas HICKMAN ,  Corbett Benjamin SCHOENFELT ,  Bennett Alexander NADEAU ,  Jefferson Blake WEST

IPC: G03G15/08

Abstract: Examples of an output assembly for a print particle replenishment device are described herein, Some examples of the output assembly include a sliding member. For example, the sliding member includes a channel that is offset from a rotating axis of the output assembly and a notch that is offset from the rotating axis and that extends to an outer edge of the sliding member. Some examples of the output assembly include a cover member to maintain a static position with respect to a rotation of the sliding member. In some examples, the cover member includes an alignment structure that is offset from the rotating axis of the output assembly.

公开(公告)号：US20210096503A1

公开(公告)日：2021-04-01

申请号：US17050136

申请日：2018-08-30

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

Inventor： Ji-Won MOON ,  Min-Chul LEE ,  Kwangsung PARK ,  Yuntae KIM ,  Jinwoo NOH ,  Matthew James STOREY ,  Seungsup LEE ,  Zackary Thomas HICKMAN ,  Amy Moon WILLIAMS ,  An TRAN ,  Bennett Alexander NADEAU

IPC: G03G21/16 ,  G03G15/08

Abstract: Examples of a host device that includes an input recess are described. In some examples, the input recess includes a rotating port cover offset from a central axis of the input recess. In some examples, the input recess includes a plurality of contacts disposed on an interfacing surface of the input recess to interface with a print particle replenishment device when the rotating port cover is rotated. In some examples, the plurality of contacts interfaces with a control device to authenticate the print particle replenishment device.

公开(公告)号：US20210162666A1

公开(公告)日：2021-06-03

申请号：US17047211

申请日：2018-08-30

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

Inventor： Ji-Won MOON ,  Min-Chul LEE ,  Woong-Yong CHOI ,  Matthew James STOREY ,  Jefferson Blake WEST ,  Zackary Thomas HICKMAN

IPC: B29C64/255 ,  B29C64/209 ,  B29C64/241 ,  B33Y30/00

Abstract: Examples of a print a print particle replenishment device are described. In some examples, a print particle replenishment device includes a rotating member to rotate about a central axis of the print particle replenishment device. In some examples, the rotating member includes an opening offset from the central axis. In some examples of a print particle replenishment device, a nozzle is offset from the central axis, where the nozzle is to slide with respect to an interior plane of the rotating member to align with the opening to transfer print particles through the nozzle and opening when in an open position. In some examples, a print particle replenishment device includes an extension that protrudes with respect to the opening to engage a port cover of a host device to move the port cover to open a port for replenishment at rotation.

公开(公告)号：US20210116837A1

公开(公告)日：2021-04-22

申请号：US17252867

申请日：2018-08-30

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

Inventor： Andy Philip CHICK ,  Ji-Won MOON ,  Min-Chul LEE ,  Kwangsung PARK ,  Yuntae KIM ,  Jinwoo NOH ,  Pratik Pravinkumar SHAH ,  Matthew James STOREY ,  Zackary Thomas HICKMAN ,  Amy Moon WILLIAMS ,  An TRAN ,  Bennett Alexander NADEAU

IPC: G03G15/08 ,  B29C64/321 ,  B33Y10/00 ,  B33Y30/00

Abstract: Examples of a print particle replenishment device for replenishing a host device are described herein. In some examples, the print particle replenishment device includes an output assembly to output print particles, comprising an interfacing portion. In some examples, the print particle replenishment device includes a plurality of contact pads disposed on an outer portion of the output assembly to rotate with the output assembly when opening a channel of the print particle replenishment device.

公开(公告)号：US20210088939A1

公开(公告)日：2021-03-25

申请号：US17050337

申请日：2019-03-05

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

Inventor： SeungSup LEE ,  Min-Chul LEE ,  Jiwon MOON ,  Woongyong CHOI

IPC: G03G15/08

Abstract: A printer includes a main body including a communicating portion, a development cartridge attachable to and detachable from the main body, the development cartridge to supply toner contained in a toner container to an electrostatic latent image formed on a photoconductor, to form a visible toner image, and a toner refilling portion connected to the toner container. The toner refilling portion includes a mounting portion into which a toner cartridge insertable from outside the main body through the communicating portion to be mountable, a toner inlet portion provided in the mounting portion to receive toner from the toner cartridge when the toner cartridge is mounted to the mounting portion, and an inlet shutter switchable between a blocking position where the toner inlet portion is blocked from receiving toner, and an inlet position where the toner inlet portion is open to receive toner. The printer includes a first latch member switchable between a first position where the inlet shutter is locked from switching between the blocking position and the inlet position and a second position where switching of the inlet shutter is allowed to switch between the blocking position and the inlet position, and a switching unit to switch between the first latch member between the first position and the second position.