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公开(公告)号：EP4431295A1
公开(公告)日：2024-09-18
申请号：EP23200579.3
申请日：2023-09-28
发明人： OKUMURA, Yuki , TAKEUCHI, Misaki
摘要： A liquid discharging device includes: a cartridge mounting part; a tank connected to the cartridge mounting part; a head that ejects a liquid; a discharge mechanism for discharging the liquid from the head; and a controller. The liquid is at least a storage liquid, a first liquid which is different from the storage liquid, or a mixture thereof. In a storage mode, the controller executes: a return process of returning the first liquid from the tank to a first liquid cartridge mounted on the cartridge mounting part; a first discharging process of driving the discharge mechanism to discharge the first liquid from the head; a storage liquid supplying process for supplying a storage liquid from a storage liquid cartridge to the tank; and a second discharging process of driving the discharge mechanism to discharge the storage liquid from the head, after executing the storage liquid supplying process.
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公开(公告)号：EP3927556B1
公开(公告)日：2024-09-18
申请号：EP20708697.6
申请日：2020-02-20
CPC分类号： B41J2/18 , B41J3/4073
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公开(公告)号：EP4420884A1
公开(公告)日：2024-08-28
申请号：EP23207505.1
申请日：2023-11-02
发明人： Gomi, Takanori
CPC分类号： B41J2/175 , B41J2/17596 , B41J2/18
摘要： According to one embodiment, a liquid dispensing recording device includes a liquid dispensing head, a liquid supply tank, a pump, a first tank, and a second tank. The liquid dispensing head dispenses a liquid. The liquid supply tank stores the liquid. The pump can regulate a flow of the liquid when the pump is stopped by setting an amount of the liquid to be supplied larger than a sum of an amount of the liquids passing through and dispensed from the liquid dispensing head. The first tank is connected downstream of the liquid supply tank and upstream of the pump, and has a liquid surface at a position lower than a nozzle surface of the liquid dispensing head. The second tank is connected downstream of the pump and upstream of the liquid dispensing head, and has a liquid surface at a position higher than the nozzle surface of the liquid dispensing head. If a liquid surface difference between the liquid surfaces of the first tank and the second tank is defined as h, the nozzle surface of the liquid dispensing head is located at or above a midpoint of the liquid surface difference h while the device is stopped.
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公开(公告)号：EP4116102B1
公开(公告)日：2024-07-03
申请号：EP22186453.1
申请日：2017-01-06
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公开(公告)号：EP4378695A1
公开(公告)日：2024-06-05
申请号：EP23211926.3
申请日：2023-11-24
申请人： Ricoh Company, Ltd.
发明人： ARAKI, Satomi , YOSHIDA, Takahiro
摘要： Ahead module (20) includes at least two liquid discharge heads (21A, 21B), a reservoir (24), a heater (26), an inlet (50), a first outlet (51A), a second outlet (51B), and a wall member (27). The liquid discharge heads (21A, 21B) discharge liquid. The reservoir (24) stores the liquid. The heater (26) heats the liquid in the reservoir. The liquid is to be introduced from the inlet into the reservoir. The liquid in the reservoir is to be delivered from the first outlet to one (21A) of the liquid discharge heads. The liquid in the reservoir is to be delivered from the second outlet to another (21B) of the liquid discharge heads. A distance between the inlet and the first outlet (51A) is shorter than a distance between the inlet and the second outlet (51B). The wall member (27) is interposed between the inlet (50) and the first outlet (5 1A).
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公开(公告)号：EP4375073A1
公开(公告)日：2024-05-29
申请号：EP23212068.3
申请日：2023-11-24
CPC分类号： B41J2/18 , B41J2/19 , B41J2/20 , B41J2/17553 , B41J2/17513 , B41J2/1721 , B41J2002/173520130101
摘要： An ink supplier includes a supply reservoir 22 that stores ink to be supplied to a plurality of heads in an ink-jet printing apparatus. The supply reservoir 22 includes: a first horizontal reservoir 51 of a cylindrical shape having a plurality of supply ports communicating with a plurality of heads; and a first vertical reservoir 52 having a side surface provided with a first opening 520 directly or indirectly communicating with one end 51a of the first horizontal reservoir 51. A top surface of the first horizontal reservoir 51 is tilted from a horizontal direction at an angle of tilt equal to or greater than 0.3° in such a manner as to extend upward from the other end 51b toward the first opening 520 or the one end 51a. Thus, air bubbles in the first horizontal reservoir 51 move along the top surface into the first vertical reservoir 52 through the first opening 520. As a result, it becomes possible to remove air bubbles from the inside of the first horizontal reservoir 51 without providing a pipe for removal of air bubbles that might be a cause for agglomeration. Specifically, it is possible to remove air bubbles in a reservoir while suppressing agglomeration of ink.
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公开(公告)号：EP4375072A1
公开(公告)日：2024-05-29
申请号：EP23212077.4
申请日：2023-11-24
CPC分类号： B41J2/17513 , B41J2/17553 , B41J2/18 , B41J2/19 , B41J2/20 , B41J2/1721 , B41J2002/173520130101
摘要： An ink supplier includes: a supply reservoir storing ink to be supplied to a plurality of heads; and a discharge pipe 71 used for discharging the ink from the supply reservoir. The supply reservoir includes: a cylindrical first horizontal reservoir 51 having a plurality of supply ports each communicating with one of the plurality of heads; and a first vertical reservoir 52 having a side surface provided with a first opening communicating with one end of the first horizontal reservoir 51. The first horizontal reservoir 51 has a bottom surface that is tilted from a horizontal direction at an angle of tilt equal to or greater than 0.3° in such a manner as to extend downward from the one end toward the other end. The first horizontal reservoir includes a first discharge port 81 provided at a bottom portion of the first horizontal reservoir at the other end and communicably connected to the discharge pipe 71. Thus, a precipitate in the first horizontal reservoir 51 moves along the tilted bottom surface and gathers at a lowermost point at the other end where the first discharge port 81 is provided. This allows the precipitate in the first horizontal reservoir 51 to be discharged efficiently. Specifically, a technique allowing a precipitate in a tank to be efficiently prevented from entering a head is provided.
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