Ink cartridge for ink jet recording device
AssigneeSeiko Epson Corporation
InventorsHisashi Miyazawa, Yasuto Sakai, Satoshi Shinada, Atsushi Kobayashi
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Abstract
An ink cartridge for an ink jet recording device, includes: a container having an ink supply port; at least two ink chambers partitioned in the container, one being located substantially in an upper section and the other being located substantially in a lower section; an ink suction passage connecting a bottom region of the lower section ink chamber to a bottom region of the upper section ink chamber; and a negative pressure generating mechanism provided to a flow passage connecting the upper section ink chamber to the ink supply port.
Claims68
An ink cartridge for an ink jet recording device having a recording head, the ink cartridge comprising;
- a container including:
- a lower section ink chamber;
- an upper section ink chamber;
- an ink supply port for supplying ink to the recording head;
- an ink suction passage fluidly connecting the lower section ink chamber to the upper section ink chamber, the lower section ink chamber being located upstream of the upper section ink chamber with respect to a direction of ink flow through the ink suction passage;
- an ink flow passage fluidly connecting the upper section ink chamber to the ink supply port;
- and
- an air communication passage in fluid communication, with the lower section ink chamber and the ambient atmosphere;
- and,
- a negative pressure generating mechanism disposed in the container, and disposed within the ink flow passage.
An ink cartridge for an ink jet recording device having a recording head, the ink cartridge comprising:
- a container including;
- an ink chamber;
- an ink supply port for supplying ink to the recording head;
- an ink flow passage connecting the ink supply port to the ink chamber;
- and
- an air communication passage in fluid communication with the ink chamber and the ambient atmosphere;
- a negative pressure generating mechanism disposed in the container and disposed within the ink flow passage;
- and
- an air communication valve connected to the air communication passage, the air communication valve being normally closed, the air communication valve being adapted to be opened when the ink cartridge is mounted to the recording device.
An ink cartridge for an ink jet recording device having a recording head, the ink cartridge comprising:
- a container including:
- a lower section ink chamber;
- an upper section ink chamber;
- an ink supply port for supplying ink to the recording head;
- an ink suction passage fluidly connecting the lower section ink chamber to the upper section ink chamber;
- an ink flow passage fluidly connecting the ink supply port to the upper section ink chamber;
- and
- an air communication passage in fluid communication with the lower section ink chamber and the ambient atmosphere;
- a negative pressure generating mechanism disposed in the container and disposed within the ink flow passage;
- and
- a filter member, disposed at a filter placement portion within the ink flow passage at a position upstream of the negative pressure generating mechanism and downstream of the upper section ink chambers.
An ink cartridge for an ink jet recording device, comprising:
- a container having an ink supply port;
- at least two ink chambers partitioned by a wall extending in a substantially horizontal direction in the container when the container is mounted on the ink jet recording device, a first ink chamber being located substantially in an upper section and a second ink chamber being located substantially in a lower section;
- an ink suction passage fluidly connecting a bottom region of the lower section ink chamber to the upper section ink chamber;
- and
- a differential pressure valve disposed within a flow passage fluidly connecting the ink supply port to the upper section ink chamber, and in a region proximate to the upper section ink chamber.
An ink cartridge that is detachably mounted on a carriage of an ink jet recording device, the carriage having an ink jet head, comprising:
- a container having an ink supply-port;
- at least two ink chambers partitioned in the container, a first ink chamber being located substantially in an upper section of the container and a second ink chamber being located substantially in a lower section of the container;
- an ink suction passage fluidly connecting a bottom region of the lower section ink chamber to a bottom region of the upper section ink chamber;
- and
- a negative pressure generating mechanism disposed within a flow passage connecting the upper section ink chamber to the ink supply port.
Dependencies are inferred from the claim text.