公开(公告)号：US20210060963A1

公开(公告)日：2021-03-04

申请号：US16644607

申请日：2017-10-18

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

Inventor： Paul JERAN ,  Bartley Mark HIRST ,  Jefferson P WARD ,  Dee CHOU

IPC: B41J2/175

Abstract: In one example, an article for a replaceable printer component includes an integrated circuit device having a device controller, a conductor to supply power to the device controller and to carry a signal to and from the device controller, and a sensor operatively connected to the device controller to sense a voltage and/or a frequency on the conductor. The device controller to send an indication of a sensed voltage and/or a sensed frequency to the printer controller.

公开(公告)号：US20200282735A1

公开(公告)日：2020-09-10

申请号：US16604890

申请日：2017-05-21

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

Inventor： Paul JERAN ,  Bartley Mark HIRST ,  Dee CHOU

IPC: B41J2/175

Abstract: In one example, an integrated circuit device for a replaceable printer component to communicate information about the component to a printer controller when a component with the integrated circuit device is installed in a printer. The integrated circuit device includes a controller, a memory operatively connected to the controller to store and/or generate information about the component, a single pair of conductors to supply power to the controller and to carry data signals to and from the controller, a detector to detect incoming data signals with a signal property associated with the component, and two electrical contacts each connected to one of the conductors to connect the integrated circuit device to a printer controller when a component with the integrated circuit device is installed in a printer.