JP2003118136A5 - - Google Patents

Description

The lid member is preferably opened downward with the hinge as the center. In this way, when the lid member is opened, the storage opening of the tank body can be clearly seen, and the lid member does not get in the way when attaching / detaching the ink cartridge, and the lid member can be used as a temporary stand instead. ..

Further, it is preferable that the hinge is configured so that the open lid member can be slid downward. In this way, the position of the lid member in the open state is sufficiently separated downward from the storage opening of the tank body, so that the hand holding the ink cartridge does not touch the lid member during the attachment / detachment work, and the lid member can be moved. It doesn't get in the way anymore.

Further , the hinge has a hinge pin provided on the tank body and a hinge piece provided on the lid member and having a hinge slot formed with the hinge pin at the tip thereof, and the hinge piece and the hinge slot each have a lid member. It is preferable that it extends in a direction substantially orthogonal to the above. In this way, when the lid member is opened, the hinge slot extends vertically, so that the movement of the lid member in the front-rear direction is restricted, and the hinge slot moves downward by the length of the hinge slot. .. On the other hand, when the lid member is erected so as to close the lid member, the hinge elongated hole extends in the front-rear direction, so that the movement of the lid member in the vertical direction is restricted and the pressing movement to the accommodation opening is permitted. With such a simple hinge structure, a special opening operation and closing operation of the lid member are possible.

It is preferable that the ink tank is made of a bag-shaped film and the cartridge case houses the ink tank in a non-airtight state. In this way, the internal pressure of the pressure tank can be applied directly to the ink tank.

Claims (15)

An ink supply device that pressurizes and supplies ink to an inkjet head through a tube,
A pressure tank for detachably storing an ink cartridge comprising an ink tank connected to the inkjet head via the tube and a cartridge case for storing the ink tank;
An ink supply apparatus comprising: an air supply mechanism that supplies pressurized air for pressurizing the ink tank to the pressure tank.   The ink supply device according to claim 1, wherein the air supply mechanism is configured exclusively for ink supply.   The pressurized tank is provided with an atmosphere release valve that opens the inside of the pressurized tank to the atmosphere when the pressurized air from the air supply mechanism is depressurized to a predetermined value or less. Item 3. The ink supply device according to Item 1 or 2. The pressurizing tank has a body portion integrally formed of an extruded aluminum material,
A closing member provided at one end of the trunk,
The ink supply device according to claim 1 , further comprising a lid member provided at the other fore end of the body portion. The pressurized tank has a tank body that detachably accommodates the ink cartridge, and a lid member that closes the accommodation opening of the tank body,
4. The ink supply device according to claim 1 , wherein the lid member is configured to be completely occluded only when the ink cartridge is completely attached to the tank main body. 5. The pressurized tank has a pair of fasteners for locking the lid member to the tank body in a closed state;
The ink supply device according to claim 5 , further comprising a detector that detects a completely closed state of the lid member by the pair of stoppers. A plurality of pressurized tanks are provided corresponding to a plurality of ink cartridges for each ink color,
The ink supply apparatus according to claim 1, wherein the air supply mechanism that supplies pressurized air to the plurality of pressure tanks is configured as a single unit. The cartridge case has a recess formed on the case side where the ink supply port of the ink tank faces,
In the pressurized tank, a tank side joint portion is formed to project corresponding to the case side joint portion,
To the tank-side joint, with connected to the tube of the ink cartridge claims 1, characterized in that connection ports the ink supply port is connected is provided when fully mounted 7 The ink supply device according to any one of the above. The case side joint is formed with an insertion hole for preventing erroneous mounting of the ink cartridge,
The ink supply apparatus according to claim 8 , wherein an insertion pin that is inserted into the insertion hole is provided at the tank side joint. A plurality of pressurized tanks are provided corresponding to a plurality of ink cartridges for each ink color,
The case side joint is formed with a notch for each ink color of the ink cartridge,
10. The ink supply device according to claim 8, wherein the tank side joint is provided with an insertion protrusion for each ink color inserted into the notch. The tank side joint is unitized,
The ink supply device according to claim 8 , wherein the ink supply device is attached to an innermost portion of the tank main body. An ink cartridge that is detachably accommodated in the ink supply device according to claim 1 . The cartridge case is formed with a locking groove for locking the supply port fitting that forms the ink supply port.
The locking groove is a U-shaped groove formed in a case wall that constitutes the case side joint, and the U-shaped groove has a pair of inwardly locking holes that lock the supply port fitting to the groove bottom. The ink cartridge according to claim 12 , wherein a protrusion is formed. 14. The ink cartridge according to claim 12, wherein the case side joint is provided with an ink absorber located below the ink supply port facing the case side joint. An ink jet printer comprising the ink supply device according to claim 1 .