Abstract: A printing apparatus can quickly cancel a print job without any influence on the other subsequent print jobs when a print cancel instruction is issued. During printing, if a print cancel instruction is inputted from a printer operation unit, a printer function manager notifies a print command interpreter of the cancellation. The print command interpreter searches data processed at that time in a transmission/reception buffer for an end mark command indicating the end of the cancelled job. Then the print command interpreter deletes the data before the end mark command.

Abstract: The present invention realizes a liquid ejecting head with increased ejection force and ejection efficiency and also realizes a liquid ejecting head having compatibility with the conventional products, and a head cartridge and a recording system incorporating the liquid ejecting head. A liquid ejecting head or a head cartridge having an ejection outlet for ejecting a liquid, a liquid flow path in fluid communication with the ejection outlet, and an ejection energy generating element, provided corresponding to the liquid flow path, for receiving an electric signal to generate ejection energy, which comprises an energy adjusting device for adjusting an amount of energy supplied from the outside to the liquid ejecting head and utilized as the electric signal.

Abstract: The present invention realizes a liquid ejecting head with increased ejection force and ejection efficiency and also realizes a liquid ejecting head having compatibility with the conventional products, and a head cartridge and a recording system incorporating the liquid ejecting head.

Abstract: A printing apparatus which quickly cancels a print job without any influence on the subsequent other print jobs when a print cancel instruction is issued. During printing, if a print cancel instruction is inputted from a printer operation unit 107, a printer function manager 109 notifies a print command interpreter 108 of the cancellation. The print command interpreter 108 searches data processed at that time in a transmission/reception buffer for an end mark command indicating the end of the cancelled job. Then the print command interpreter 108 deletes the data before the end mark command.

Abstract: A method for standardizing an ink jet recording head is arranged to be capable of utilizing the characteristics of each of recording heads to the maximum, while maintaining the compatibility between them. Particularly, the compatibility is maintained between the novel type recording head whose interior is partitioned into two layers through movable members, and a conventional type recording head. When the conventional type recording head is mounted on a novel type recording apparatus, all the requirements are handled by the novel type recording apparatus side to drive the conventional type recording head under a condition regulated for the conventional type recording head. When the novel type recording head is mounted on a conventional type recording apparatus, it is driven within the capacity of performance of the conventional type recording apparatus. A discriminator for discriminating the kind of mounted recording head is provided for each of the recording apparatuses.

Abstract: In a recording apparatus, a recording operation is controlled by being connected to a host computer. The apparatus includes a sheet supporting unit for supporting a plurality of sheets, a feeding unit for feeding a sheet supported by the sheet supporting unit, a manual insertion port for manually inserting a sheet into the main body of the apparatus, a conveying unit for conveying the sheet fed from the sheet supporting unit or the sheet inserted from the manual insertion port, a recording unit for performing a recording operation on the sheet fed by the conveying unit, a sheet detection unit for detecting the sheet inserted from the manual insertion port, and a control unit for causing the apparatus to execute a recording operation in a manual insertion mode based on the detection of the manually inserted sheet by the sheet detection unit, and for temporarily providing an off-line state with respect to the host computer after the recording operation has been completed.

Abstract: This specification discloses an ink jet recording method and apparatus for printing thinning print dots based upon a printing mode or the printing dot density of the characters.

Abstract: A recording apparatus using a recording head driven in accordance with print information includes a feeder for feeding a recording material; a discriminator for discriminating presence or absence of next printing information before completion of discharging of a current printed recording material; and a controller for controlling the feeder to start feeding of the next recording material prior to completion of the discharging of the current recording material, when the discriminator discriminates the presence of the next printing information.

Abstract: This specification discloses an ink jet recording method and apparatus for printing thinning print dots and based upon a printing mode or the printing dot density of the characters.

Abstract: A method of cleaning a discharge port surface of an ink jet recording apparatus includes wiping the surface using a blade having a certain contact area with the surface and rubbing the surface using a rubbing member having a larger contact area with the surface than the blade. The wiping and rubbing operations are performed independently of each other so that their different purposes can be better accomplished. For example, since rubbing the surface need not be done as often as wiping, they can both be performed at optimum intervals. The rubbing member can be removably mounted to a replacement ink cartridge so that the rubbing member can be conveniently replaced at the same time as the cartridge.

Abstract: A recovery device for an ink jet recording apparatus having a cup for an ink discharge port of a recording head and a suction device communicating with the cap for sucking ink from the ink discharge port includes a communicating tube, a communicating valve, and a ventilating valve. The communication tube communicates with the cap and a subtank which supplies ink to the recording head. A communicating valve connects and disconnects communication of the cap with the subtank and is provided in an intermediate portion of the tube. A ventilating valve communicates the interior of the tube with the atmosphere and is provided separately from the communicating valve.

Abstract: A coumarin-like aroma and flavor is imparted to tobacco, foods and drinks by adding the 2- and/or 3-alkyl-substituted indanone compound, such as, 3,4-dimethyl-7-methoxyindan-1-one and 2,4-dimethyl-7-ethoxyindan-1-one. Such a aroma and flavor is further imparted by adding an aromatic composition comprizing said indanone compound, heliotropin and the alkyllactone, such as .gamma.-hexalactone and .beta.,.delta.-dimethyl-.delta.-valerolactone. The favourable examples of foods and drinks in this process are oil and fat product such as margarin and shortening; dairy product such as butter, cheese and yoghurt; meat product such as ham, sausage and bacon; confectionary such as cake and candy, fermentation product such as wine and brandy; drink such as cocoa, coffee, cocacola and soft drinks.