摘要:
An ink cartridge for an ink jet printer having a housing having at least one wall. The ink cartridge further has at least two ink chambers for containing different ink accommodated in the housing. Ink supply ports are formed in one wall of the housing within each of the ink chambers. Each of the ink supply ports has an inner opening and an outer opening. The distance from the inner opening of a first ink supply port to that of a second ink supply port adjacent to the first ink supply port is different from a second distance from the outer opening of the first ink supply opening to that of the second ink supply port.
摘要:
A valve unit in an ink supply channel of an ink-jet recording apparatus, the ink supply channel having an upstream side and a downstream side, the valve unit comprising a diaphragm valve having a thin elastic diaphragm operating in response to pressure difference between an upstream side and a downstream side of the diaphragm, a valve body formed on the surface of the thin elastic diaphragm and having an opening therein, and an elastic support portion integrally formed with the valve body for urging the valve body toward the upstream direction, a valve seat disposed in the ink supply channel upstream of the diaphragm and kept in elastic contact with the opening, and a flow-channel forming plate for forming a flow channel disposed on the downstream side of the valve seat, the flow channel, extending in a longitudinal direction of the elastic portion and the flow channel forming plate having an end portion side extending in an upstream direction to form a flow channel whose sectional area decreases in the longitudinal direction.
摘要:
A valve unit in an ink supply channel of an ink-jet recording apparatus, the ink supply channel having an upstream side and a downstream side, the valve unit comprising a diaphragm valve having a thin elastic diaphragm operating in response to pressure difference between an upstream side and a downstream side of the diaphragm, a valve body formed on the surface of the thin elastic diaphragm and having an opening therein, and an elastic support portion integrally formed with the valve body for urging the valve body toward the upstream direction, a valve seat disposed in the ink supply channel upstream of the diaphragm and kept in elastic contact with the opening, and a flow-channel forming plate for forming a flow channel disposed on the downstream side of the valve seat, the flow channel, extending in a longitudinal direction of the elastic portion and the flow channel forming plate having an end portion side extending in an upstream direction to form a flow channel whose sectional area decreases in the longitudinal direction.
摘要:
A filter chamber having a portion inclined in relation to the horizontal direction is formed between an ink supply channel having one end communicating with an ink cartridge and a throughhole communicating with an ink-jet recording head, and a filter plate is placed in the filter chamber so as to diagonally traverse it, so that ink is allowed to pass through the whole surface of the filter plate.
摘要:
An ink tank cartridge for an ink-jet type recording apparatus being removably mounted onto an ink supply needle of a recording body is provided. The ink tank cartridge is provided with a first chamber for storing ink and a second chamber for storing a porous member having ink impregnated therein. The second chamber communicates with the first chamber through a passageway formed within the cartridge between the first and second chambers. An ink supply port extends through and projects from a wall of the second chamber. The ink supply port supplies inks to the ink-jet recording apparatus through said porous member. A funnel-shaped packing member is provided within the ink supply port. The packing member is formed with a hole therethrough having a wide end and a narrow end and is dimensioned to receive the ink supply needle and to resiliently abutt against an outer periphery of the ink supply needle. The packing member is formed for preventing the flow of ink through the ink supply port other than through the ink supply needle when the needle is positioned in the ink supply port. The wide end of the hole is disposed away from the porous member.
摘要:
An ink cartridge including: an ink chamber for retaining liquid ink; a foam chamber maintained in fluid communication with the ink chamber through a communication hole. An ink supply port for supplying ink from a porous body accommodated in the foam chamber to a recording head is provided. The portion of the foam body confronting the ink supply port is compressed by the ink supply port. The ratio between the amount of ink initially charged in the ink chamber and that of ink absorbed in the porous body is in the range from 1:1 to 1:3. When a cartridge uses more than one color of ink for printing in color, a plurality of foam and ink cartridges are used. The cartridge is filled under reduced pressure while the interior of the cartridge is further evacuated before filling with ink.
摘要:
An ink tank cartridge for an ink-jet type recording apparatus is provided. The ink tank cartridge comprises a first chamber and a second chamber formed adjacent the first chamber. A porous member is housed in the second chamber. A partition wall separates the first chamber from second chamber, which communicate through a communication hole therethrough which extends along a portion of the width of the partition wall. An ink supply port extends through a wall of the first chamber and supplies ink to the exterior of the cartridge from the porous member. An air vent is spaced from the ink supply port provides ambient air to the second chamber. The pressure in the first chamber and the second chamber is at a value less than normal atmospheric pressure, and a pressure difference which retains the ink in the first chamber is also maintained between the first and second chambers by the surface tension of the porous member in the vicinity of the communicating hole. The first and second chambers, partition wall, communicating hole, air vent port and ink supply port are positioned and dimensioned so that a pressure difference between the chambers is not maintained as ink is transmitted through the ink supply port, and ink is supplied from the first chamber to the porous member in the second chamber as required until the pressure difference between the chambers is restored.
摘要:
An ink cartridge including: an ink chamber for retaining liquid ink; a foam chamber maintained in fluid communication with the ink chamber through a communication hole. An ink supply port for supplying ink from a porous body accommodated in the foam chamber to a recording head is provided. The portion of the foam body confronting the ink supply port is compressed by the ink supply port. The ratio between the amount of ink initially charged in the ink chamber and that of ink absorbed in the porous body is in the range from 1:1 to 1:3. When a cartridge uses more than one color of ink for printing in color, a plurality of foam and ink cartridges are used. The cartridge is filled under reduced pressure while the interior of the cartridge is further evacuated before filling with ink.