Patent ID: 11964837
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  G | IPC B

Claim 0:
1. 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.