Thermal image forming apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorYong-duk Lee
Life of this patent
Estimating the term…
Abstract
A thermal image forming apparatus is provided. The thermal image forming apparatus includes an image forming unit including a thermal printhead and a platen that face each other and are elastically biased towards each other; a cassette including a knock-up plate on which a medium is stacked, a pickup roller that picks up the medium from the cassette, and a pickup unit that raises the knock-up plate in a direction in which the medium stacked on the knock-up plate contacts the pickup roller and lowers the knock-up plate in a direction in which the medium is separated from the pickup roller.
Claims23
A thermal image forming apparatus comprising:
- an image forming unit including a thermal printhead and a platen that face each other and are elastically biased towards each other;
- a cassette including a knock-up plate on which a medium is stacked;
- a pickup roller that picks up the medium from the cassette;
- and
- a pickup unit that raises the knock-up plate in a direction in which the medium stacked on the knock-up plate contacts the pickup roller and lowers the knock-up plate in a direction in which the medium is separated from the pickup roller.
An image forming apparatus comprising:
- a cassette including a knock-up plate on which a medium is stacked;
- a printhead for forming an image on the medium;
- a platen that faces the printhead, the medium passing between the platen and the printhead;
- a pickup roller that picks up the medium from the cassette;
- a printhead moving unit that moves the printhead between a contact position where the printhead contacts the platen, a first open position where the printhead is separated from the platen by a first gap, and a second open position where the printhead is separated from the platen by a second gap;
- and
- a pickup unit for raising and lowering the knock-up plate, the pickup unit comprising:
- a first arm that contacts the printhead, the first arm rotating when the printhead moves to the second open position;
- a second arm that is rotated by the first arm, the second arm pressing the knock-up plate to raise the knock-up plate;
- and
- an elastic member that connects the first and second arms.
Dependencies are inferred from the claim text.