Back to results
US 11,964,837 B2Granted
Assisted print medium receipt
AssigneeHewlett-Packard Development Company, L.P.
InventorsEzequiel Jordi Rufes Bernad, Lluis Valles Casanova, Joan Marti Velasco Figueras
Life of this patent
Estimating the term…
Abstract
A method of operating a device to receive a print medium is disclosed. Rotation of a receiving device to receive a print medium is detected, whereby the rotation is caused by an external force. An assisting force is applied to further rotate the receiving device in response to the detected rotation.
Claims13
A method, comprising:
- detecting rotation of a receiving device to receive a print medium, the rotation being caused by an external force;
- applying an assisting force to further rotate the receiving device in response to the detected rotation;
- providing an electric motor to generate the assisting force;
- determining a current rotational speed of the electric motor;
- and
- in response to detecting the rotation of the receiving device caused by the external force, applying a driving voltage to the electric motor to generate the assisting force,
- wherein the driving voltage is a function of the current rotational speed of the electric motor, the function differing from a characteristic function of the electric motor and the characteristic function defining a rotational speed as a function of applied voltage, and
- wherein the rotation of the receiving device is detected by detecting motion of the electric motor caused by the external force.
5 more elements
A method, comprising:
- detecting rotation of a receiving device to receive a print medium, the rotation being caused by an external force;
- and
- applying an assisting force to further rotate the receiving device in response to the detected rotation,
- wherein the assisting force is generated by applying a driving voltage to an electric motor, and
- wherein, while the receiving device is rotating, decreasing the assisting force in response to at least one of:
- a predefined amount of the print medium being received by the receiving device;
- receiving a further external force exerted on the receiving device directed opposite to a rotation direction of the receiving device;
- and
- the receiving device rotating for a predefined time period.
6 more elements
A method, comprising
- providing a receiving roller to receive a print medium and an electric motor to rotate the receiving roller;
- applying a bias voltage to the electric motor, wherein the bias voltage is below a threshold voltage, wherein the electric motor is to set in motion when powered at least by the threshold voltage;
- detecting rotation of the receiving roller caused by an external force;
- in response to detecting the rotation of the receiving roller, applying a driving voltage to the electric motor to generate an assisting force to further rotate the receiving roller;
- determining a current rotational speed of the receiving roller;
- and
- controlling the driving voltage according to a predefined function of the current rotational speed of the receiving roller.
4 more elements
A device, comprising
- a receiving device to receive a print medium;
- an actuator to apply an assisting force to the receiving device when a driving voltage is applied to the actuator;
- and
- a control unit to control the actuator, detect rotation of the receiving device, and determine a current rotational speed of the actuator;
- wherein the control unit is to operate the actuator in response to detecting the rotation of the receiving device caused by an external force, and
- wherein the driving voltage is a function of the current rotational speed of the actuator, the function differing from a characteristic function of the actuator and the characteristic function defining a rotational speed as a function of applied voltage.
3 more elements
Dependencies are inferred from the claim text.