Load cells for print supplies
    43.
    发明授权

    公开(公告)号:US11479049B2

    公开(公告)日:2022-10-25

    申请号:US16605792

    申请日:2018-08-01

    Abstract: A print supply, the print supply containing a print material and to connect to a printing device to provide the print material to the printing device that includes a container to maintain the print material, an integrated circuit coupled to the box to interface electrically with the printing device, and a load cell communicatively coupled to the integrated circuit to detect a weight of the print liquid supply.

    Logic circuitry
    45.
    发明授权

    公开(公告)号:US11364716B2

    公开(公告)日:2022-06-21

    申请号:US16771092

    申请日:2018-12-03

    Abstract: In an example, a logic circuitry package is configured to be addressable via a first address and at least one second address and comprises a first logic circuit. The first address may be an address for the first logic circuit, and the package may be configured such that, in response to a first command indicative of a first command time period sent to the first address, the package is accessible via at least one second address for a duration of the first command time period; and in response to a second command indicative of a second command time period sent to the first address, the first logic circuit is to, for a duration of the second command time period, disregard traffic sent to the first address.

    Replaceable item authentication
    50.
    发明授权

    公开(公告)号:US10680822B2

    公开(公告)日:2020-06-09

    申请号:US16511912

    申请日:2019-07-15

    Abstract: A print substance cartridge for a printing device includes a supply of print substance for the printing device, a non-volatile memory, and logic. The memory stores authentication values by which the print substance cartridge is authenticated by the printing device, and/or a cryptographic key from which a plurality of authentication values are able to be generated within the print substance cartridge. The memory stores hash values corresponding to the authentication values and by which the authentication values are verifiable by the printing device. The logic is to, in response to a request from the printing device for one of the authentication values and including an identifier, provide the authentication value associated with the identifier to the printing device. The logic is to, in response to a request from the printing device for one or more hash values of the hash values, provide the requested one or more hash values.

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