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US 10,894,425 B2Granted
Printing device, printing device control method and writing device
AssigneeHitachi, Ltd.
InventorsKohhei Aida, Yasuhiko Tada, Hiroshi Sasaki, Masahiro Kawasaki
Life of this patent
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Abstract
This printing device is provided with a first ink container that contains a first ink; a second ink container that contains a second ink; temperature adjusting units that adjust the temperature of the first ink contained in the first ink container and/or the temperature of the second ink contained in the second ink container; a nozzle that sprays the inks; and a control unit that controls the first temperature adjusting unit and the second temperature adjusting unit.
Claims8
A printing device comprising:
- a first ink container that contains a first ink;
- a second ink container that contains a second ink;
- a temperature adjusting unit that adjusts at least either temperature of the first ink contained in the first ink container or temperature of the second ink contained in the second ink container;
- a nozzle that sprays an ink;
- and
- a control unit that controls the temperature adjusting unit,
- wherein the temperature adjusting unit has a cooling mechanism and a heating mechanism,
- wherein the first ink and the second ink are inks that change in color reversibly as a result of temperature change, and have different color-development start temperatures and decoloration start temperatures, and
- wherein, assuming that a decoloration start temperature of the first ink is Ta1, a color-development start temperature of the first ink is Td1, a decoloration start temperature of the second ink is Ta2 and a color-development start temperature of the second ink is Td2, a relationship of Td1<Td2<Ta1<Ta2 is satisfied.
6 more elements
A printing device comprising:
- a first ink container that contains a first ink;
- a second ink container that contains a second ink;
- a temperature adjusting unit that adjusts at least either temperature of the first ink contained in the first ink container or temperature of the second ink contained in the second ink container;
- a nozzle that sprays an ink;
- a control unit that controls the temperature adjusting unit,
- wherein the temperature adjusting unit has a cooling mechanism and a heating mechanism, and
- wherein the first ink and the second ink are inks that change in color reversibly as a result of temperature change, and have different color-development start temperatures and decoloration start temperatures;
- an ink container;
- a first ink supplementation path that supplies the first ink from the first ink container to the ink container;
- a second ink supplementation path that supplies the second ink from the second ink container to the ink container;
- and
- an ink supply path that supplies, from the ink container to the nozzle, a mixed ink in which the first ink and the second ink are mixed,
- wherein the nozzle sprays the mixed ink in which the first ink and the second ink are mixed.
10 more elements
Dependencies are inferred from the claim text.