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US 12,485,660 B2Granted
Sheet separation device, sheet laminator, image forming apparatus, and image forming system
AssigneeRicoh Company, Ltd.
InventorsWataru Takahashi, Tomohiro Furuhashi, Keisuke Sugiyama, Ruki Midorikawa, Shinya Monma, Sho Asano
Life of this patent
Estimating the term…
Abstract
A sheet separation device includes a sheet separator and a conveyor. The sheet separator separates a non-bonding portion of a two-ply sheet in which two sheets are overlapped and bonded together at a bonding portion of the two-ply sheet. The conveyor conveys the two-ply sheet toward the sheet separator while bending the two-ply sheet in a direction that intersects a conveyance direction of the two-ply sheet.
Claims19
A sheet separation device comprising:
- a sheet separator configured to separate a non-bonding portion of a two-ply sheet in which two sheets are overlapped and bonded together at a bonding portion of the two-ply sheet;
- a first conveyor upstream of the sheet separator, the first conveyor configured to,
- convey the two-ply sheet toward the sheet separator while bending the two-ply sheet in a direction that intersects a conveyance direction of the two-ply sheet, and
- convey the two-ply sheet toward the sheet separator while bending the two-ply sheet such that the two-ply sheet includes a first curved portion where a first face of the two-ply sheet is bent outward and defines a first convex shape and a second curved portion where a second face of the two-ply sheet opposite to the first face is bent outward and defines a second convex shape;
- and
- a second conveyor including at least two rollers, upstream from the sheet separator in the conveyance direction of the two-ply sheet, and upstream from the first conveyor in the conveyance direction of the two-ply sheet, the second conveyor configured to convey the two-ply sheet toward the sheet separator.
3 more elements
A sheet separation device comprising:
- a sheet separator configured to separate a non-bonding portion of a two-ply sheet in which two sheets are overlapped and bonded together at a bonding portion of the two-ply sheet;
- a first conveyor configured to convey the two-ply sheet toward the sheet separator while bending the two-ply sheet in a direction that intersects a conveyance direction of the two-ply sheet;
- a second conveyor upstream from the sheet separator in the conveyance direction of the two-ply sheet and upstream or downstream from the first conveyor in the conveyance direction of the two-ply sheet, the second conveyor being configured to convey the two-ply sheet toward the sheet separator;
- and
- circuitry configured to:
- cause the first conveyor to convey the two-ply sheet at a first conveyance speed;
- and
- cause the second conveyor to convey the two-ply sheet at a second conveyance speed different from the first conveyance speed,
- wherein the circuitry is configured to alternately reverse a relation of degrees of the first conveyance speed and the second conveyance speed.
6 more elements
Dependencies are inferred from the claim text.