Abstract: An inkjet cartridge having a plurality of ink reservoirs and a plurality of nozzle rows without variations in lengths of ink flow paths communicating the ink reservoirs with the nozzle rows. An inkjet cartridge includes a tank part having a plurality of ink reservoirs and a head part having nozzle rows, each nozzle row having a plurality of nozzles from which ink supplied from the tank part is ejected. Each of ink supply ports provided in each of the ink reservoirs is communicated with a predetermined nozzle row via an ink flow path, and the plurality of ink reservoirs are formed by dividing an internal space of the tank part into equal parts on a plane perpendicular to an ink ejection direction while lengths of a plurality of ink flow paths are the same.

Abstract: A personalized product producing system enables customers to order a personalized product, such as a name card, a stamp, or a sticker/label, inexpensively and conveniently. Customers operate their own cellular phones to send personalized information to be engraved in a stamp or printed on a name card or sticker/label in the form of e-mail to a host computer. The host computer edits the information and sends personalized product producing data to a stamp personalized product producing device. The personalized product producing device produces a personalized product based on the received data.

Abstract: An inkjet cartridge having a plurality of ink reservoirs and a plurality of nozzle rows without variations in lengths of ink flow paths communicating the ink reservoirs with the nozzle rows. An inkjet cartridge includes a tank part having a plurality of ink reservoirs and a head part having nozzle rows, each nozzle row having a plurality of nozzles from which ink supplied from the tank part is ejected. Each of ink supply ports provided in each of the ink reservoirs is communicated with a predetermined nozzle row via an ink flow path, and the plurality of ink reservoirs are formed by dividing an internal space of the tank part into equal parts on a plane perpendicular to an ink ejection direction while lengths of a plurality of ink flow paths are the same.

Abstract: An ink jet cartridge includes a first chamber for accommodating a negative pressure producing material and provided with air communication part for communication with ambient air, wherein a part of the negative pressure producing material does not contain ink adjacent the air communication part; a second chamber which is substantially closed except for a fine communication part for communication with the first chamber at a position away from the air communication part, wherein the second chamber directly accommodates the ink to be supplied to the first chamber.

Abstract: An ink jet cartridge includes a first chamber for accommodating a negative pressure producing material and provided with air communication part for communication with ambient air, wherein a part of the negative pressure producing material does not contain ink adjacent the air communication part; a second chamber which is substantially closed except for a fine communication part for communication with the first chamber at a position away from the air communication part, wherein the second chamber directly accommodates the ink to be supplied to the first chamber.

Abstract: An ink jet cartridge includes a first chamber for accommodating a negative pressure producing material and provided with air communication part for communication with ambient air, wherein a part of the negative pressure producing material does not contain ink adjacent the air communication part; a second chamber which is substantially closed except for a fine communication part for communication with the first chamber at a position away from the air communication part, wherein the second chamber directly accommodates the ink to be supplied to the first chamber.

Abstract: An ink jet cartridge includes a first chamber for accommodating a negative pressure producing material and provided with air communication part for communication with ambient air, wherein a part of the negative pressure producing material does not contain ink adjacent the air communication part; a second chamber which is substantially closed except for a fine communication part for communication with the first chamber at a position away from the air communication part, wherein the second chamber directly accommodates the ink to be supplied to the first chamber.

Abstract: A stamp making apparatus of the invention makes a stamp plate on a stamp material by applying light thereto through a draft sheet. The stamp making apparatus includes an attachment that can be attached to and removed from a predetermined position facing the draft sheet and has a mounting hole where a holder having a stamp material can be inserted into and removed from. A plurality of mounting holes are formed in the attachment so that the holders having various types and shapes can be inserted into and removed from directly or via an auxiliary attachment. Further, the attachment includes a first adjusting device, which moves the mounting hole in a longitudinal direction of the draft sheet (in the Y direction), and a second adjusting device, which moves the mounting hole in a lateral direction (in the X direction), so that the position of the mounting hole in the attachment can be finely adjusted.

Abstract: A liquid container for containing printing liquid for supplying to a recording head for an ink jet recording apparatus, the container includes a first chamber containing a negative pressure producing material and having a printing liquid supply port connectable to a recording head for allowing printing liquid to be supplied to the recording head and an air vent for allowing ambient air to enter the container, and a second chamber which provides a printing liquid reservoir for the first chamber and is substantially closed apart from a communication port communicating with the first chamber to allow the printing liquid to flow into the first chamber and to allow air to be introduced into the second chamber from the first chamber. The second chamber comprises a replaceable printing liquid chamber.

Abstract: An ink containing apparatus for containing ink includes a negative pressure producing material; a first container for containing the negative pressure producing material, the first container having an air vent and a supply port for supplying the ink out; a second container for containing ink; a communication part for communication between bottom portions of the first and second containers; and ribs for introducing ambient air adjacent the air vent for introducing air into the communication part.

Abstract: An ink containing apparatus for containing ink includes a negative pressure producing material; a first container for containing the negative pressure producing material, the first container having an air vent and a supply port for supplying the ink out; a second container for containing ink; a communication part for communication between bottom portions of the first and second containers; and ribs for introducing ambient air adjacent the air vent for introducing air into the communication part.

Abstract: An ink jet cartridge includes a first chamber for accommodating a negative pressure producing material and provided with air communication part for communication with ambient air, wherein a part of the negative pressure producing material does not contain ink adjacent the air communication part; a second chamber which is substantially closed except for a fine communication part for communication with the first chamber at a position away from the air communication part, wherein the second chamber directly accommodates the ink to be supplied to the first chamber.

Abstract: An ink jet cartridge includes a first chamber for accommodating a negative pressure producing material and provided with air communication part for communication with ambient air, wherein a part of the negative pressure producing material does not contain ink adjacent the air communication part; a second chamber which is substantially closed except for a fine communication part for communication with the first chamber at a position away from the air communication part, wherein the second chamber directly accommodates the ink to be supplied to the first chamber.

Abstract: A liquid container for a liquid jet recording apparatus comprises a first chamber containing negative pressure producing material and having a liquid outlet connectable to a liquid jet head to supply liquid from the container to the liquid jet head and an air vent for allowing ambient air into the container, wherein the liquid outlet is provided in a bottom portion of the first chamber. A second chamber communicates with the first chamber by a communication path and is substantially hermetically sealed. A wall extends upwardly from the communication path of the first chamber. An ambient air introducing path is provided for between the wall and the negative pressure producing material extending from a point partly up the wall toward the communication path for introducing ambient air into the second chamber.

Abstract: An ink jet cartridge comprises a first chamber for accommodating a negative pressure producing material and having an air communication part for communication with ambient air, and a second chamber, substantially closed except for a liquid communication part, in communication with the first chamber, which second chamber contains a reservoir of ink to be supplied to the first chamber. A deformation prevention member is disposed within the second chamber thereby preventing or at least inhibiting deformation of the second chamber walls. A wall of the second chamber is 1.3 to 3 times as thick as a wall of the first chamber.

Abstract: A personalized product producing system enables customers to order a personalized product, such as a name card, a stamp, or a sticker/label, inexpensively and conveniently. Customers operate their own cellular phones to send personalized information to be engraved in a stamp or printed on a name card or sticker/label in the form of e-mail to a host computer. The host computer edits the information and sends personalized product producing data to a stamp personalized product producing device. The personalized product producing device produces a personalized product based on the received data.

Abstract: A liquid container including a first chamber for containing a reservoir of liquid, a second chamber containing a negative pressure producing material, an air vent for fluid communication with ambient air, a liquid supply port for supplying liquid out of the second chamber, a communication path for fluid communication between the first and second chambers where the first chamber is generally sealed by the ambient air except through the communication path, and a wall extending from the communication port. The communication path has a first region for permitting movement of air from the second chamber to the first chamber and a second region for permitting movement of the liquid from the first chamber to the second chamber.

Abstract: An ink jet unit includes an ink jet head for ejecting ink; an ink cartridge for containing ink to be supplied to the ink jet head; an ink supply member for introducing the ink from the ink cartridge, provided in the ink jet head; a negative pressure generating material in the ink cartridge; an opening for permitting contact between the negative pressure generating material and in the ink supply member; wherein a gap is formed in the opening when the ink supply member is in contact with the negative pressure generating material.

Abstract: An ink jet cartridge has a first chamber for accommodating a negative pressure producing material and having an air communication part for communication with ambient air, and a second chamber, substantially closed except for a liquid communication part, in communication with the first chamber, which second chamber contains a reservoir of ink to be supplied to the first chamber. The negative pressure producing material in the first chamber is retracted from the liquid communication part.

Abstract: A liquid container for a liquid jet recording apparatus includes a first chamber containing negative pressure producing material and having a liquid outlet. At a lower part of the cartridge and contactable to the liquid jet head, the liquid container supplies liquid from the cartridge to the liquid jet head. An air vent allows ambient air into the cartridge. A second chamber communicates with the first chamber by means of a communication part, except for which the second chamber is substantially hermetically sealed. The second chamber is disposed at the lower part of the cartridge and provides a liquid reservoir for the first chamber.