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US 12,595,142 B2Granted
Sheet feeder
AssigneeToshiba Tec Kabushiki Kaisha
InventorMasahiro Ohno
Life of this patent
Estimating the term…
Abstract
A sheet feeder includes a cassette has a sheet container space configured to hold a sheet having a wireless tag. The cassette feeds the sheet to a first side in a first direction. A horizontal direction orthogonal to the first direction is a second direction. A range in the second direction occupied by the wireless tag of the sheet held in the sheet container space is a first range. A range in the second direction including at least a part of the first range is a second range. A range in the second direction occupied by the sheet container space is a third range. In the cassette front wall, a height in a vertical direction in the third range except the second range is smaller than a height in the vertical direction in the second range.
Claims17
A sheet feeder, comprising:
- a cassette having a sheet container space configured to hold a sheet having a wireless tag, the cassette configured to feed the sheet to a first side in a first direction,
- wherein the cassette comprises a cassette front wall that is a retaining wall of the cassette at the first side in the first direction of the sheet container space for retaining the sheet within the sheet container space,
- wherein a horizontal direction orthogonal to the first direction is a second direction, a range in the second direction occupied by the wireless tag of the sheet held in the sheet container space is a first range, a range in the second direction including at least a part of the first range is a second range, and a range in the second direction occupied by the sheet container space is a third range, and
- wherein a first height of the cassette front wall in a vertical direction in the third range, except the second range, is smaller than a second height of the cassette front wall in the vertical direction in the second range;
- and
- a lower surface guide located at the first side in the first direction of the cassette to contact a lower surface of the sheet fed from the cassette, the lower surface guide configured to guide conveyance of the sheet,
- wherein a front portion of the lower surface guide, that faces the cassette front wall, is disposed lower than a center height of the cassette front wall at a center of the first range,
- wherein the lower surface guide extends along the second direction to opposite end portions of the lower surface guide, and
- wherein a fourth range of the lower surface guide, that at least partially overlaps with the first range, has a third height in the vertical direction that is greater than fourth heights of the lower surface guide at the opposite end portions of the lower surface guide.
6 more elements
An image forming apparatus, comprising:
- a control panel;
- a wireless tag communication device;
- a printer;
- and
- a sheet feeder, comprising:
- a cassette having a sheet container space configured to hold a sheet having a wireless tag, the cassette configured to feed the sheet to a first side in a first direction,
- wherein the cassette comprises a cassette front wall that is a retaining wall of the cassette at the first side in the first direction of the sheet container space for retaining the sheet within the sheet container space,
- wherein a horizontal direction orthogonal to the first direction is a second direction, a range in the second direction occupied by the wireless tag of the sheet held in the sheet container space is a first range, a range in the second direction including at least a part of the first range is a second range, and a range in the second direction occupied by the sheet container space is a third range, and
- wherein a first height of the cassette front wall in a vertical direction in the third range, except the second range, is smaller than a second height of the cassette front wall in the vertical direction in the second range;
- and
- a lower surface guide located at the first side in the first direction of the cassette to contact a lower surface of the sheet fed from the cassette, the lower surface guide configured to guide conveyance of the sheet,
- wherein a front portion of the lower surface guide, that faces the cassette front wall, is disposed lower than a center height of the cassette front wall at a center of the first range,
- wherein the lower surface guide extends along the second direction to opposite end portions of the lower surface guide, and
- wherein a fourth range of the lower surface guide, that at least partially overlaps with the first range, has a third height in the vertical direction that is greater than fourth heights of the lower surface guide at the opposite end portions of the lower surface guide.
11 more elements
A sheet feeder, comprising:
- a cassette having a sheet container space configured to hold a sheet having a wireless tag, the cassette configured to feed the sheet to a first side in a first direction,
- wherein the cassette comprises a cassette front wall that is a retaining wall of the cassette at the first side in the first direction of the sheet container space for retaining the sheet within the sheet container space,
- wherein a horizontal direction orthogonal to the first direction is a second direction, a range in the second direction occupied by the wireless tag of the sheet held in the sheet container space is a first range, a range in the second direction including at least a part of the first range is a second range, and a range in the second direction occupied by the sheet container space is a third range, and
- wherein a first height of the cassette front wall in a vertical direction in the third range, except the second range, is smaller than a second height of the cassette front wall in the vertical direction in the second range;
- a lower surface guide located at the first side in the first direction of the cassette, contacting a lower surface of the sheet fed from the cassette, the lower surface guide configured to guide conveyance of the sheet,
- wherein, when an opposite side to the first side in the first direction is a second side in the first direction and a range in the second direction including at least a part of the first range is a fourth range of the lower surface guide, in an end portion at the second side in the first direction of the lower surface guide, a third height in the vertical direction in the third range except the fourth range is smaller than fourth heights in the vertical direction in the fourth range,
- wherein, in a front portion at the first side in the first direction of the lower surface guide, the fourth heights in the vertical direction, at opposite sides of the front portion of the lower surface guide, are equal, and
- wherein the lower surface guide comprises a bent portion located at the first side in the first direction of the lower surface guide, the bent portion configured to change a conveyance direction of the sheet that is guided along the lower surface guide.
5 more elements
Dependencies are inferred from the claim text.