US Patent Application 18218453. PRINTING APPARATUS simplified abstract

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PRINTING APPARATUS

Organization Name

CANON KABUSHIKI KAISHA


Inventor(s)

Midori Yasuda of Kawasaki-shi (JP)

Yuki Kamio of Kawasaki-shi (JP)

Masashi Kamada of Kawasaki-shi (JP)

Masato Eiyama of Yokohama-shi (JP)

Yuki Igarashi of Tokyo (JP)

Masashi Negishi of Kawasaki-shi (JP)

Ryoya Shinjo of Kawasaki-shi (JP)

Ryo Kobayashi of Kawasaki-shi (JP)

Tomohiro Suzuki of Kawasaki-shi (JP)

PRINTING APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18218453 titled 'PRINTING APPARATUS

Simplified Explanation

The patent application describes a roll sheet that is wound in a roll form and used to supply sheets to a printing unit.

  • The roll sheet rotates in a forward direction to feed the sheets.
  • Two sensors are positioned facing the outer surface of the roll sheet, but they are slightly offset in the direction of the roll sheet's axis.
  • The outputs of the sensors change based on the distance to the sheet of the roll sheet.
  • The roll sheet's rotation direction is switched from forward to reverse based on the outputs of the sensors while it is rotating in the reverse direction.


Original Abstract Submitted

A roll sheet, in which a continuous sheet is wound in a roll form, is caused to rotate in a forward direction to supply the sheet to a printing unit. First and second sensors are arranged at positions facing an outer circumferential surface of the roll sheet and deviated in an axis line direction of the roll sheet. Outputs of the first and second sensors are changed in accordance with a distance to a sheet of the roll sheet. A rotation direction of the roll sheet is switched from a forward direction to a reverse direction on the basis of the outputs of the first and second sensors while the roll sheet is being rotated in the reverse direction.