Abstract: A first authorization code on a consumable item for a printing device is optically scanned. A second authorization code on the consumable item is electrically read by the printing device upon the insertion of the consumable item into the printing device. In response to determining that the first and second authorization codes match, the printing device is authorized to use the consumable item for printing.

Abstract: A consumable item of a printing device is authenticated based on analog values of operational parameters of the printing device measured during usage of the consumable item within the printing device. An action is performed based on whether authentication of the consumable item of the printing device was successful or not.

Abstract: In some examples, a computing device can include a processing resource and a memory resource storing instructions to cause the processing resource to receive an authentication signal from an imaging device, authenticate the imaging device using the authentication signal, and transmit print enablement data to the imaging device to enable print job functionality for the imaging device in response to authenticating the authentication signal.

Abstract: A print material container comprising a body to hold print material, a housing, and a detecting member. The housing being coupled to the body and including a movable mass to move in the housing when a shaking force is applied to the print material container. The detecting member to detect the shaking force and to signal a feedback of the shaking force relative to a shaking force threshold.

Abstract: An integrated wearable energy generation and annunciation system is presented. The system includes a wearable item. The system also includes a plurality of solar panels integral with the wearable item and positionable on the wearable item. The system includes a plurality of light emitting diode (LED) panels integral with the wearable item and positionable on the wearable item. The system includes a plurality of batteries configured to receive power from the solar panels and to power LED panels and system components. The system also includes control circuitry arranged to interface the solar panels, the LED panels, system components, and the batteries. The system also includes a control platform structured to provide control functions for the system to generate power from the plurality of solar panels, to charge the batteries, to power and display data on the LED panels, and to coordinate functionality amongst system components.

Abstract: An organic photoconductor includes a cylindrical body having a surface on which an electrostatic latent image is to be formed, and an optical tag provided on an outer circumferential surface of the cylindrical body. The organic photoconductor may be included in a development cartridge for an image forming apparatus.

Abstract: An organic photoconductor includes a cylindrical body having a surface on which an electrostatic latent image is to be formed, and an optical tag provided on an outer circumferential surface of the cylindrical body. The organic photoconductor may be included in a development cartridge for an image forming apparatus.

Abstract: An integrated wearable energy generation and annunciation system is presented. The system includes a wearable item. The system also includes a plurality of solar panels integral with the wearable item and positionable on the wearable item. The system includes a plurality of light emitting diode (LED) panels integral with the wearable item and positionable on the wearable item. The system includes a plurality of batteries configured to receive power from the solar panels and to power LED panels and system components. The system also includes control circuitry arranged to interface the solar panels, the LED panels, system components, and the batteries. The system also includes a control platform structured to provide control functions for the system to generate power from the plurality of solar panels, to charge the batteries, to power and display data on the LED panels, and to coordinate functionality amongst system components.

Abstract: An apparatus and method for the protection of an electronic circuit against anomalies in a supplied power voltage where the apparatus includes: a reserve power source connected to the supplied power voltage for providing voltage to the electronic circuit for a predetermined amount of time after an anomaly has occurred in the supplied power voltage, a module control for maintaining selected data and control signals transmitted to the electronic circuit during occurrence of the anomaly, and a differential comparator connected to the supplied power voltage and to the reserve power source to produces a comparator control signal upon occurrence of the anomaly, the differential comparator providing the comparator control signal to the module control.