Abstract: A liquid injection apparatus having a liquid reservoir for containing liquid, a recording head for injecting the liquid, and a liquid supply passage for supplying the liquid in the liquid reservoir to the recording head is disclosed. A valve unit is located on the liquid supply passage. The valve unit has pressure chamber for temporarily retaining the liquid. As the recording head injects the liquid, the liquid in the pressure chamber decreases. In response to a negative pressure generated by the decrease of the liquid in the pressure chamber, a valve mechanism of the valve unit selectively establishes a supply state where the liquid is supplied from the liquid supply passage to the pressure chamber and a non-supply state where the liquid is not supplied from the liquid supply passage to the pressure chamber. An flow rate adjuster forcibly changes a flow rate of the liquid that flows through the liquid supply passage.

Abstract: An ink cartridge which has an IC memory for holding information about the cartridge. At the time the ink cartridge is to be installed in a printing apparatus, its insertion is inhibited at a position before installation by a lock mechanism. In this state, the information in the IC memory is read out via a first electrode terminal located on the cartridge side and connected to the IC memory and the propriety of the installation of the ink cartridge to the apparatus is determined. When the ink cartridge is determined to be appropriate, the lock mechanism is unlocked and the ink cartridge can be installed into the printing apparatus. When the ink cartridge is installed in the printing apparatus, data is exchanged between the printing apparatus and the IC memory via a second electrode terminal connected to the IC memory.

Abstract: There is provided an ink cartridge which is formed from an ink-filled ink pack and a hermetic outer shell case for housing the ink pack and which supplies ink to a recording head by means of application of air pressure to a space between the outer shell case and the ink pack. The outer shell case is formed by coupling an upper case and a lower case together. The ink-filled ink pack is housed in the lower case, and the upper case is laid on the lower case from above. The upper and lower cases are hermetically sealed by vibratory welding or heat welding, thus constituting the ink cartridge.

Abstract: An ink cartridge which has an IC memory for holding information about the cartridge. At the time the ink cartridge is to be installed in a printing apparatus, its insertion is inhibited at a position before installation by a lock mechanism. In this state, the information in the IC memory is read out via a first electrode terminal located on the cartridge side and connected to the IC memory and the propriety of the installation of the ink cartridge to the apparatus is determined. When the ink cartridge is determined to be appropriate, the lock mechanism is unlocked and the ink cartridge can be installed into the printing apparatus. When the ink cartridge is installed in the printing apparatus, data is exchanged between the printing apparatus and the IC memory via a second electrode terminal connected to the IC memory.

Abstract: A liquid collection unit (33) is placed on a movement path of a liquid jet head mounted on a carriage. An opening portion (40) for receiving liquid, which are jetted from a liquid jet head, by performing a flushing operation is formed in the movement path of the liquid jet head. Liquid mist generated by performing a flushing operation is sucked by a fan (55) having blades (55b), and then caught and collected by the centrifugation action of a rotor portion (47) having a large number of flat fins (47b) on the internal surface of a cylindrical body (47a). A filter member (59) is disposed at an air outlet (58), from which air is caused by a fan (55) to flow out. A small amount of liquid mist, which is not collected by the roller part (47), is effectively collected by this filter member (59).

Abstract: The ink-jet recording apparatus according to the invention is provided with a recording head for jetting an ink droplet corresponding to print data, a main tank for supplying ink to the recording head and a subtank composed of upper and lower two tanks respectively connected to the main tank and the recording head and mutually communicating, the upper tank of the subtank is formed by an ink tank having an ink outlet for leading ink to the recording head, and the lower tank is formed by an ink tank having an ink inlet for leading ink from the main tank by pressure of a pump and elastically deformable according to the variation of internal pressure.

Abstract: There is provided an ink cartridge which is formed from an ink-filled ink pack and a hermetic outer shell case for housing the ink pack and which supplies ink to a recording head by means of application of air pressure to a space between the outer shell case and the ink pack. The outer shell case is formed by coupling an upper case and a lower case together. The ink-filled ink pack is housed in the lower case, and the upper case is laid on the lower case from above. The upper and lower cases are hermetically sealed by vibratory welding or heat welding, thus constituting the ink cartridge.

Abstract: Ink type information is read by a read and write system (62) from a semiconductor storage system mounted on ink cartridges (9a to 9d) attached to a cartridge holder (8). A decision control system (61) decides whether or not ink type information has already been stored in ink type storage system (63), and stores the ink type information thus read when the ink type information is not stored. In the case in which the ink cartridge is exchanged, the ink type information is similarly read and it is decided whether or not the same ink type information is identical to the ink type information stored in the ink type storage system (63). If they are not identical to each other, the operation of the recording apparatus is inhibited and a display system (68) is caused to display an error message thereon.

Abstract: There is provided an ink cartridge which is formed from an ink-filled ink pack and a hermetic outer shell case for housing the ink pack and which supplies ink to a recording head by means of application of air pressure to a space between the outer shell case and the ink pack. The outer shell case is formed by coupling an upper case and a lower case together. The ink-filled ink pack is housed in the lower case, and the upper case is laid on the lower case from above. The upper and lower cases are hermetically sealed by vibratory welding or heat welding, thus constituting the ink cartridge.

Abstract: An ink cartridge for supplying ink to a recording head is detachably mounted on a cartridge holder. A calculator performs calculation of an ink amount consumed by the recording head. A counter updates a residual ink amount in the mounted ink cartridge based on the consumed ink amount calculated by the calculator. A monitor monitors an ink amount contained in the mounted ink cartridge to judge at least an ink-end state in which the ink amount in the ink cartridge is a predetermined amount or less. A corrector corrects the way of calculation in the calculator based on the residual ink amount indicated by the counter, when the monitor judges that the mounted ink cartridge is in the ink-end state.

Abstract: Ink from an ink cartridge (9) is supplied along an ink supply tube (10) to a sub-tank (7) mounted on a carriage. Provided for the sub-tank (7) is an ink level detector constituted by a float member (33) on which a permanent magnet (32) is mounted, and Hall devices (33a, 33b). Further, a ink consumption counter is also included for calculating the quantity of ink ejected or discharged by a recording head (6). When a low ink state is detected by the ink level detector and when the value held by the ink consumption counter has reached a predetermined ink quantity total, the supply of ink from the ink cartridge (9) to the sub-tank (7) is initiated.

Abstract: In an ink jet recording apparatus, a recording head is mounted on a carriage which reciprocately moves in a widthwise direction of recording paper. A subtank is mounted on the carriage for supplying ink. A main tank stores ink which is replenished to the subtank. An ink amount detector detects an amount of ink stored in the subtank. A replenishment controller controls replenishment of ink stored in the main tank to the subtank, in accordance with the ink amount detected by the ink amount detector.

Abstract: A wiping unit for wiping a nozzle formation face of a recording head of an ink jet recording apparatus includes a slider reciprocally moving in a direction parallel with the nozzle formation face. A wiper is supported by the slider. One end of the wiper is pressed against the nozzle formation face as a wiping operation when the slider moves in a first direction, while as a rubbing operation when the slider moves in a second direction opposed to the first direction. A supporter rotatably supports the other end of the wiper on the slider. A spring urges the wiper toward the nozzle formation face while keeping an attitude of the wiper directed by a reaction force generated when the wiping operation is executed. A rotation limitter restricts the rotation of the wiper such that the wiper is rigidly supported by the slider when the rubbing operation is executed.

Abstract: There is provided an ink cartridge which is formed from an ink-filled ink pack and a hermetic outer shell case for housing the ink pack and which supplies ink to a recording head by means of application of air pressure to a space between the outer shell case and the ink pack. The outer shell case is formed by coupling an upper case and a lower case together. The ink-filled ink pack is housed in the lower case, and the upper case is laid on the lower case from above. The upper and lower cases are hermetically sealed by vibratory welding or heat welding, thus constituting the ink cartridge.

Abstract: An ink coagulating agent of metal salt is provided in a waste ink tank. The coagulating agent is dissolved in aqueous solvent to be a metal salt solution. Absorbers of a porous material are impregnated with the metal salt solution and disposed in the waste ink tank.

Abstract: Disclosed are diazabicyclo compounds of formula (I) ##STR1## in which R.sup.1 is a substituted or unsubstituted lower alkyl, lower alkenyl or lower alkynyl; R.sup.2 is a hydroxy; R.sup.3 is a lower alkoxycarbonyl; R.sup.4 and R.sup.7 are hydrogens or substituted or unsubstituted phenyl groups; R.sup.5 and R.sup.6 are hydrogens or lower alkyl groups; or pharmaceutically acceptable salts thereof, having cardioprotective activity. Also disclosed are methods of treating cardiovascular disease using a compound of formula (I) or pharmaceutically acceptable compositions comprising the compound of formula (I).

Abstract: The recording device of an ink jet type comprises a drive voltage generation circuit which, in synchronization with a timing signal given from outside, generates a first drive voltage having a trapezoidal wave form, a drive circuit which outputs a first drive voltage to a piezo-vibrator in accordance with a printing signal given from outside and also, in synchronization with the timing signal, outputs a second drive voltage, which is used to generate such a small pulse that cannot jet out ink drops from a nozzle opening, to the piezo-vibrator in which a non-printing condition has continued for one or more cycles, and control means which stops the application of the small pulse when the time of application of the small pulse after completion of a printing operation exceeds a given time.

Abstract: Disclosed are carbapenem-3-carboxylic acid ester derivatives of formula (I), wherein R.sup.1 is a hydrogen atom or a lower alkyl group, R.sup.2 is an alkyl group which may be substituted by a cycloalkyl group having about 4 to 7 carbon atoms and which may be substituted by a lower alkyl group, or is a cycloalkyl group having 4 to 7 carbon atoms which may be substituted by a lower alkyl group and n is 0 or 1. The compounds are highly absorbable through the digestive tract and are rapidly converted in the body to the active compound, which shows strong antibacterial activity.

Abstract: With an ink jet recording head (8) comprising two common ink chambers (26) and (27) communicating with both sides of a pressure generation chamber (24) and ink supply ports (30) and (31) where ink flows into the common ink chambers (26) and (27) from the outside, one ink supply port (30) is connected to a subtank (10) and the other ink supply port (31) is connected to an ink cartridge (6). The subtank (10) is replenished with ink through the ink jet recording head (8). Since ink reversely flows into the ink cartridge (6) via the recording head (8) from the subtank (10) due to the head difference, ink in the recording head (8) can be forcibly circulated without complicating a flow passage configuration.

Abstract: A transfer printing apparatus in which a recording image is written by ink drops ejected from an ink jet recording head onto a transfer drum. The ejected ink includes a dispersion medium and coloring material. The apparatus includes a dispersion absorbing member which absorbs the dispersion medium of the ink from the drum without removing the coloring material and which does not contact the transfer medium. The absorption is provided by an absorbing material, by a blower which provides suction, or a combination of both.