Abstract: To provide an ink cartridge in which a satisfactory electrical connection with a printer main assembly can be established An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 including an ink receiving tube 52, an electrical connecting portion 55 and a locking lever 58, the ink cartridge 1 includes a tube inserting portion 8 into which an ink receiving tube 52 is inserted and which is provided in a lower portion at a front surface 2c of a casing 2, an electrical contact 4 provided above the tube inserting portion 8 and electrically connectable with the electrical connecting portion 55, and an engaging portion 24 provided in a position closer to the electrical contact than to the tube inserting portion 8 and engageable with the locking lever 58.

Abstract: To provide an ink cartridge in which a satisfactory electrical connection with a printer main assembly can be established An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 including an ink receiving tube 52, an electrical connecting portion 55 and a locking lever 58, the ink cartridge 1 includes a tube inserting portion 8 into which an ink receiving tube 52 is inserted and which is provided in a lower portion at a front surface 2c of a casing 2, an electrical contact 4 provided above the tube inserting portion 8 and electrically connectable with the electrical connecting portion 55, and an engaging portion 24 provided in a position closer to the electrical contact than to the tube inserting portion 8 and engageable with the locking lever 58.

Abstract: To provide an ink cartridge capable of accomplishing satisfactory electrical connection relative to a printer main assembly An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 provided with an ink receiving tube 52 and a plurality of electrical connecting portions 55, the ink cartridge 1 including a tube inserting portion 8 into which the receiving tube 52 is insertable, a substrate 3 provided on a front side 2c in a position above the tube inserting portion 8, a plurality of electrical contacts 4 electrically connectable with the plurality of electrical connecting portions 55, the electrical contacts 4 being arranged on the substrate 3 in a direction crossing with a direction from a bottom surface 2b toward an upper surface 2a

Abstract: To provide an ink cartridge in which a satisfactory electrical connection with a printer main assembly can be established An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 including an ink receiving tube 52, an electrical connecting portion 55 and a locking lever 58, the ink cartridge 1 includes a tube inserting portion 8 into which an ink receiving tube 52 is inserted and which is provided in a lower portion at a front surface 2c of a casing 2, an electrical contact 4 provided above the tube inserting portion 8 and electrically connectable with the electrical connecting portion 55, and an engaging portion 24 provided in a position closer to the electrical contact than to the tube inserting portion 8 and engageable with the locking lever 58.

Abstract: The ink cartridge has a communication unit for allowing an ink storage chamber to communicate with a space outside a housing. The communication unit includes a communication port formed on an outside surface of the housing, a merging channel having an end which communicates with the communication port, and a plurality of branch channels, each having an end which communicates with the merging channel and the other end which communicates with the ink storage chamber. In the branch channel, while ink flows backward, the ink flowing from the merging channel branches into the first branch channel and the second branch channel. At the same time, a ratio (Q1/Q2) between an ink flow rate in the first branch channel and an ink flow rate in the second branch channel while the ink is supplied is smaller than that while the ink flows backward.

Abstract: There is provided a liquid storage container capable of efficiently using a liquid stored therein. An ink cartridge has a flexible member having flexibility attached to a wall surface inside a housing to define a space inside the housing. In a position during use, an angle between the wall surface inside the housing and the flexible member in a lower attachment position of the flexible member to the housing is greater than an angle between the wall surface inside the housing and the flexible member in an upper attachment position.

Abstract: There is provided a liquid storage container capable of efficiently using a liquid stored therein. An ink cartridge has a flexible member having flexibility attached to a wall surface inside a housing to define a space inside the housing. In a position during use, an angle between the wall surface inside the housing and the flexible member in a lower attachment position of the flexible member to the housing is greater than an angle between the wall surface inside the housing and the flexible member in an upper attachment position.

Abstract: The ink cartridge has a communication unit for allowing an ink storage chamber to communicate with a space outside a housing. The communication unit includes a communication port formed on an outside surface of the housing, a merging channel having an end which communicates with the communication port, and a plurality of branch channels, each having an end which communicates with the merging channel and the other end which communicates with the ink storage chamber. In the branch channel, while ink flows backward, the ink flowing from the merging channel branches into the first branch channel and the second branch channel. At the same time, a ratio (Q1/Q2) between an ink flow rate in the first branch channel and an ink flow rate in the second branch channel while the ink is supplied is smaller than that while the ink flows backward.

Abstract: In a state in which a liquid container is mounted on a recording device, a liquid ejection head communicates with a liquid chamber through a first liquid channel and a second liquid channel, an opening of the first liquid channel at a side far from the liquid ejection head and an opening of the second liquid channel at a side far from the liquid ejection head are made at the liquid chamber, the opening of the first liquid channel is located at an upper side in a gravitational direction as compared with the opening of the second liquid channel, and an air-liquid interface in the first liquid channel is held by a meniscus force so that the air-liquid interface in the first liquid channel is located at the upper side in the gravitational direction as compared with an air-liquid interface in the second liquid channel.

Abstract: In a state in which a liquid container is mounted on a recording device, a liquid ejection head communicates with a liquid chamber through a first liquid channel and a second liquid channel, an opening of the first liquid channel at a side far from the liquid ejection head and an opening of the second liquid channel at a side far from the liquid ejection head are made at the liquid chamber, the opening of the first liquid channel is located at an upper side in a gravitational direction as compared with the opening of the second liquid channel, and an air-liquid interface in the first liquid channel is held by a meniscus force so that the air-liquid interface in the first liquid channel is located at the upper side in the gravitational direction as compared with an air-liquid interface in the second liquid channel.