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    Structure for selectively locking toner inlet shutter of toner refill portion
    3.
    发明授权
    Structure for selectively locking toner inlet shutter of toner refill portion 有权

    公开(公告)号：US11209754B2

    公开(公告)日：2021-12-28

    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.

    Toner level determination and notification
    4.
    发明授权
    Toner level determination and notification 有权

    公开(公告)号：US11156939B2

    公开(公告)日：2021-10-26

    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

    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.

    Print particle replenishment device
    5.
    发明授权
    Print particle replenishment device 有权

    公开(公告)号：US11571854B2

    公开(公告)日：2023-02-07

    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: G03G15/08 ,  B29C64/255 ,  B33Y30/00 ,  B29C64/209 ,  B29C64/241

    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.

    MEDIA TRAYS AND MEDIA STOPS
    7.
    发明申请
    MEDIA TRAYS AND MEDIA STOPS 有权

    公开(公告)号：US20220106138A1

    公开(公告)日：2022-04-07

    申请号：US17417008

    申请日：2019-06-27

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

    Inventor： Seung il Kim ,  Kenneth K. Smith ,  Robert S. Moser ,  Min-Chul Lee

    IPC: B65H1/04

    Abstract: Examples of media stops and media storage trays including the media stops are disclosed. In an example, the media stop includes a base including a first end and a second end opposite the first end, a top side, and a bottom side opposite the top side. In addition, the media stop includes a stop wall extending from the top side. The base is to be slidingly coupled to a track of the support surface in a first orientation and a second orientation. When the base is in the first orientation, the first end of the base is more proximate an outer end of the support surface than the second end of the base. When the base is in the second orientation, the second end of the base is more proximate the outer end of the support surface than the first end of the base.

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