Sheet material feeding apparatus and recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorKoichiro Kawaguchi
Life of this patent
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Abstract
Present invention relates to a sheet material feeding apparatus comprising sheet material stacking means, sheet material feeding means, separation means for separating the sheet materials fed by the sheet material feeding means one by one; and a guide member for guiding one side end of the sheet material. The sheet material feeding means includes first, second, and third feeding rotary members, which are respectively formed with a sheet material contacting surface made of a high frictional material, coaxially positioned in this order from a location closer to the guide member, wherein a maximum outer diameter of the second rotary member is larger than a maximum outer diameter of the first rotary member.
Claims8
A sheet material feeding apparatus comprising:
- sheet material stacking means for stacking sheet materials;
- sheet material feeding means for feeding the sheet materials stacked on the sheet material stacking means;
- separation means for separating the sheet materials fed by the sheet material feeding means one by one;
- and
- a guide member for guiding one side end of the sheet material,
- wherein the sheet material feeding means includes first, second, and third coaxial feeding rotary members, which are formed with a sheet material contacting surface made of a high frictional material, and are respectively positioned in order from a location closer to the guide member to a location farthest from the guide member, wherein a maximum outer diameter of the second rotary member is larger than a maximum outer diameter of the first rotary member and the maximum outer diameter of the first rotary member is larger than a maximum outer diameter of the third rotary member.
A sheet material feeding apparatus comprising:
- sheet material stacking means for stacking sheet material;
- sheet material feeding means for feeding the sheet material stacked on the sheet material stacking means;
- separation means for separating the sheet materials fed by the sheet material feeding means one by one;
- and
- a guide member for guiding one side end of the sheet material;
- wherein the sheet material feeding means includes first, second, and third coaxial feeding rotary members, which are formed with a sheet material contacting surface made of a high friction material, and are respectively positioned in order from a location closer to the guide member to a location farthest from the guide member, wherein a maximum outer diameter of the second rotary member is larger than a maximum outer diameter of the first rotary member, and the sheet material are fed by the first and second rotary members when the sheet material is a sheet of rigidity and the sheet materials are fed by the first and third rotary members when the sheet material is an ordinary sheet to avoid the ordinary sheet from contacting with the second rotary member.
A recording apparatus comprising:
- sheet material stacking means for stacking sheet materials;
- sheet material feeding means for feeding the sheet materials stacked on the sheet material stacking means;
- separation means for separating the sheet materials fed by said sheet material feeding means one by one;
- and
- a guide member for guiding one side end of the sheet materials, and
- recording means for recording images on the sheet materials separated by the separation means;
- wherein the sheet material feeding means includes first, second, and third coaxial feeding rotary members, which are formed with a sheet material contacting surface made of a high frictional material, and are respectively positioned in order from a location closer to the guide member to a location farthest from the guide member, wherein a maximum outer diameter of the second rotary member is larger than a maximum outer diameter of the first rotary member and the maximum outer diameter of the first rotary member is larger than a maximum outer diameter of the third rotary member.
A recording apparatus comprising:
- sheet material stacking means for stacking sheet materials;
- sheet material feeding means for feeding the sheet materials stacked on the sheet material stacking means;
- separation means for separating the sheet materials fed by the sheet material feeding means one by one;
- a guide member for guiding one side end of the sheet materials;
- and
- recording means for recording images on the sheet materials separated by the separation means;
- wherein the sheet material feeding means includes first, second, and third coaxial feeding rotary members, which are formed with a sheet material contacting surface made of a high friction material, and are respectively positioned in order from a location closer to the guide member to a location farthest from the guide member, wherein a maximum outer diameter of the second rotary member is larger than a maximum outer diameter of the first rotary member, and the sheet materials are fed by the first and second rotary members when the sheet materials are sheets of rigidity and the sheet materials are fed by the first and third rotary members when the sheet materials are ordinary sheets to avoid the ordinary sheets from contacting with the second rotary member.
Dependencies are inferred from the claim text.