Ink cartridge and recording apparatus

A member for maintaining contact between a plurality of electrodes of a circuit board and a plurality of elastic contacts of an ink jet recording apparatus, the ink jet recording apparatus including a cartridge holder having a bottom portion, a first wall surface extending from the bottom portion, a second wall surface extending from the bottom portion and opposing the first wall surface;

• and, a groove formed in the first wall surface;
• a pair of ribs disposed on the second wall surface;
• the plurality of elastic contacts being disposed on the second wall surface and between the ribs, the member comprising:
• a first portion configured to be received by and engaged with the groove to prevent shifting in a widthwise direction when the member is mounted and disposed at a predetermined position in the cartridge holder;
• a second portion configured to be disposed between and restricted by the ribs in the width direction,
• wherein the circuit board is disposed on the second portion so that the electrodes of the circuit board are in electrical contact with the elastic contacts when the member is mounted and disposed at the predetermined position in the cartridge holder.

A member for maintaining contact between a plurality of electrodes of a circuit board and a plurality of elastic contacts of an ink jet recording apparatus, the ink jet recording apparatus including a cartridge holder having a bottom portion, a first wall surface extending from the bottom portion, a second wall surface extending from the bottom portion and opposing the first wall surface;

• and, a pair of ribs disposed on the second wall surface;
• the plurality of elastic contacts being disposed on the second wall surface and between the ribs, the member comprising:
• a first portion configured to contact a region of the first wall surface to prevent shifting in a widthwise direction when the member is mounted and disposed at a predetermined position in the cartridge holder;
• a second portion configured to be disposed between and restricted by the ribs in the width direction,
• wherein the circuit board is disposed on the second portion so that the electrodes of the circuit board are in electrical contact with the elastic contacts when the member is mounted and disposed at the predetermined position in the cartridge holder.

An ink supply apparatus for supplying ink to an ink jet recording apparatus having a plurality of elastic contacts and a lever, comprising:

• a circuit board having a plurality of electrodes;
• a body having a first side and a second side opposite from the first side,
• a contact portion disposed at the first side, configured to be contacted with the lever of the ink jet recording apparatus and configured to be restricted by the lever of the ink jet recording apparatus in a vertical direction, and
• a projecting portion projecting from the first side away from the second side, the projecting portion being disposed below the contact portion in the vertical direction and having a surface on which the circuit board is disposed, the projecting portion being configured to be restricted by the ink jet recording apparatus in a widthwise direction perpendicular to the vertical direction.

An ink supply apparatus for supplying ink to an ink jet recording apparatus having a plurality of elastic contacts and a holder for receiving the ink supply apparatus, the holder having a bottom portion, a first wall surface extending from the bottom portion, a second wall surface extending from the bottom portion and opposing the first wall surface, a groove formed in the first wall surface, a pair of ribs disposed on the second wall surface, the plurality of elastic contacts being disposed on the second wall surface and between the ribs, the ink supply apparatus comprising:

• a circuit board having a plurality of electrodes;
• a first portion configured to be received by and engaged with the groove to prevent shifting in a widthwise direction, and
• a second portion disposed between and restricted by the ribs in the widthwise direction, the circuit board being disposed on the second portion,
• wherein the electrodes of the circuit board are maintained in electrical contact with the elastic contacts of the ink jet recording apparatus when the ink supply apparatus is mounted on the ink jet recording apparatus for supplying ink to the ink jet recording apparatus.

An ink supply apparatus for supplying ink to an ink jet recording apparatus, the ink jet recording apparatus including a holder for receiving the ink supply apparatus having a bottom portion, a first wall surface extending from the bottom portion, a second wall surface extending from the bottom portion and opposing the first wall surface, a pair of ribs disposed on the second wall surface, and a plurality of elastic contacts disposed on the second wall surface and between the ribs, the ink supply apparatus comprising:

• a circuit board having a plurality of electrodes;
• and
• a first portion configured to contact a region of the first wall surface to prevent shifting in a widthwise direction;
• and
• a second portion disposed between and restricted by the ribs in the widthwise direction, the circuit board being disposed on the second portion;
• wherein the electrodes of the circuit board are maintained in electrical contact with the elastic contacts of the ink jet recording apparatus when the ink supply apparatus is mounted on the ink jet recording apparatus for supplying ink to the ink jet recording apparatus.