Media loading devices
AssigneeHewlett-Packard Development Company, L.P.
InventorsMartin Urrutia Nebreda, Joan Marti Velasco Figueras, Antonella de Ceano-Vivas Zarzoso, Jorge Porras Martinez
Life of this patent
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Abstract
According to an example, a media loading device may comprise a motor and a leading-edge sensor. The motor may rotate a media roll having a leading-edge in a winding direction and unwinding direction, the motor being controlled by a processor. The leading-edge sensor may comprise a pivot arm and a detecting element. The pivot arm may contact the media roll and the detecting element may issue a leading-edge presence signal to the processor upon contact between the detecting element and the leading-edge occurs.
Claims15
A media loading device to receive a media roll having a leading-edge, the media loading device comprising:
- a motor to rotate the media roll in a winding direction and an unwinding direction, being the motor to be controlled by a processor;
- a leading-edge sensor comprising:
- a pivot arm to contact the media roll;
- and,
- a detecting element protruding from below the pivot arm, the detecting element having a contacting surface and being to issue a leading-edge presence signal to the processor upon contact with the leading edge.
A loading method comprising:
- a motor to rotate a media holder in a winding direction and an unwinding direction, the media holder to receive a media roll having a leading-edge;
- a processor to control the motor;
- and,
- a leading-edge sensor comprising a detector and a pivot arm, the pivot arm being to contact the media roll, wherein the leading-edge sensor issues a leading-edge signal to the processor upon a movement of the detector caused by the leading-edge while the motor rotates in the winding direction.
A printing system having a print zone comprising:
- a media holder to receive a media roll having a leading-edge;
- a motor to rotate the media holder in a winding direction and an unwinding direction;
- a processor to control the motor;
- a leading-edge sensor comprising:
- a pivot arm to contact the media roll;
- a detecting element protruding from below the pivot arm, wherein upon contact between the detecting element and the leading-edge, a leading-edge presence signal is issued to the processor while the motor rotates in the winding direction;
- wherein upon reception of the leading-edge presence signal, the processor reverses the rotation to an unwinding direction;
- and,
- wherein the rotation in the unwinding direction cases the leading-edge to move through a media path to the print zone.
Dependencies are inferred from the claim text.