Surface discriminating device and image forming apparatus having the same
AssigneeCanon Kabushiki Kaisha
InventorMasami Takeda
Life of this patent
Estimating the term…
Abstract
A surface discriminating device for a recording material includes a probe having a fixed first end portion and a second end portion capable of contacting with the recording material, the probe being adapted to contact with and move relative to the recording material to thereby scan the recording material, and a piezoelectric element provided between the first end portion and the second end portion of the probe. The surface of the recording material is discriminated by the output from the piezoelectric element during the scanning of the recording material by the probe, the probe having a bent portion on the second end portion side.
Claims30
A surface discriminating device for discriminating a surface of a recording material comprising:
- a probe having a fixed first end portion and a second end portion contactable with the recording material, said probe being brought into contact with the recording material to scan the recording material by relative movement between the recording material and said probe;
- and
- a piezoelectric element provided between said first end portion and said second end portion of said probe,
- wherein the surface of the recording material is discriminated on the basis of output from said piezoelectric element in scanning of the recording material by said probe,
- wherein said probe has a bent portion on a side of said second end portion, and
- wherein said second end portion is provided downstream of said first end portion in a movement direction of the recording material relative to said probe, and a tip end of said second end portion abuts against the recording material at said bent portion in a direction counter to the movement direction of the recording material relative to said probe.
A surface discriminating device for discriminating a surface of a recording material comprising:
- a probe having a fixed first end portion and a second end portion contactable with the recording material, said probe being brought into contact with the recording material to scan the recording material by relative movement between the recording material and said probe;
- and
- a piezoelectric element provided between said first end portion and said second end portion of said probe,
- wherein the surface of the recording material is discriminated on the basis of output from said piezoelectric element in scanning of the recording material by said probe,
- wherein said probe has a bent portion on a side of said second end portion, and
- wherein said first end portion is fixed to a rotary shaft.
A surface discriminating device for discriminating a surface of a recording material comprising:
- a probe having a fixed first end portion and a second end portion contactable with the recording material, said probe being brought into contact with the recording material to scan the recording material by relative movement between the recording material and said probe;
- and
- a piezoelectric element provided between said first end portion and said second end portion of said probe,
- wherein the surface of the recording material is discriminated on the basis of output from said piezoelectric element in scanning of the recording material by said probe,
- wherein said probe has a bent portion on a side of said second end portion, and
- wherein a tip end of said second end portion is a vibrating portion vibratable for repeating deformation and restitution in a scanning direction.
Dependencies are inferred from the claim text.