Abstract: A printing apparatus performs a circulation of ink and a cleaning operation for an inkjet head. In a case where it is determined that a circulation timing for performing the circulation of the ink comes to be arrived, a controller of the printing apparatus determines whether or not to arrive at a print timing. In a case where it is determined that the print timing comes to be arrived, the controller performs the circulation and the cleaning operation. On the other hand, in a case where it is not determined that the print timing comes to be arrived, the controller performs the circulation and does not perform the cleaning operation.

Abstract: A print device includes a processor, and a memory. The processor performs processes. The processes include a covering control processing controlling the cap into a covering state in which the cap covers the nozzle. The processes include supply processing supplying, after the covering control processing, the cleaning liquid to the cap from the supply flow path. The processes include hold processing holding, after the supply processing and in a state in which the cleaning liquid has soaked the nozzle face, the cleaning liquid in the cap. The processes include first determination processing determining, after the hold processing, whether a print request has been received. The processes include discharge processing discharging, in a case where a power on signal has been detected or in a case where the first determination processing has determined that the print request has been received, the cleaning liquid that has been held in the cap.

Abstract: A print device includes a processor, and a memory. The processor performs processes. The processes include a covering control processing controlling the cap into a covering state in which the cap covers the nozzle. The processes include supply processing supplying, after the covering control processing, the cleaning liquid to the cap from the supply flow path. The processes include hold processing holding, after the supply processing and in a state in which the cleaning liquid has soaked the nozzle face, the cleaning liquid in the cap. The processes include first determination processing determining, after the hold processing, whether a print request has been received. The processes include discharge processing discharging, in a case where a power on signal has been detected or in a case where the first determination processing has determined that the print request has been received, the cleaning liquid that has been held in the cap.

Abstract: A printing device includes first and second print heads, first and second print head control units, a first print head feeding unit moving the first print head in a main scanning direction, a second print head feeding unit moving the second print head in the main scanning direction, a first medium feeding unit moving a first medium holding unit in an auxiliary scanning direction orthogonal to the main scanning direction, a second medium feeding unit moving a second medium holding unit in the auxiliary scanning direction in parallel with the movement of the first medium feeding unit, a first printing unit control unit (controlling the first print head control unit, the first print head feeding unit and the first medium feeding unit), and a second printing unit control unit (controlling the second print head control unit, the second print head feeding unit and the second medium feeding unit).

Abstract: A server acquires the total number of pages printed per hour and the number of pages printed per hour by each user on each printer in a network printing system in order to find printers whose hourly number of printed pages exceeds a load limit. The server also looks for printers having few printed pages per hour that do not exceed the load limit and issues a notification advising the user who is printing the largest volume on a printer exceeding the load limit to switch to a printer that prints few pages. Accordingly, a high concentration of printing found on a few printers can be moderated, reducing user wait time and excessive printer load.

Abstract: A printing apparatus for forming an image on fabric is provided. The printing apparatus includes a plurality of exchangeable fabric holders, a recording head, which is driven according to printable data including image information representing the image to be printed and holder information concerning a type of the fabric holder to be used for forming the image, an obtaining unit to obtain the printable data from external environment, a storage unit with a storage area to store the holder information extracted from the printable data, an examination unit to examine as to whether the holder information for a current printing operation is identical with the holder information for a previous printing operation stored in the storage area, and an indication unit, which indicates a result of the examination obtained by the examination unit to notify a user of necessity of exchanging the fabric holders.

Abstract: A printing device comprises first and second print heads, first and second print head control units, a first print head feeding unit moving the first print head in a main scanning direction, a second print head feeding unit moving the second print head in the main scanning direction, a first medium feeding unit moving a first medium holding unit in an auxiliary scanning direction orthogonal to the main scanning direction, a second medium feeding unit moving a second medium holding unit in the auxiliary scanning direction in parallel with the movement of the first medium feeding unit, a first printing unit control unit (controlling the first print head control unit, the first print head feeding unit and the first medium feeding unit), and a second printing unit control unit (controlling the second print head control unit, the second print head feeding unit and the second medium feeding unit).

Abstract: A printing apparatus for forming an image on fabric is provided. The printing apparatus includes a plurality of exchangeable fabric holders, a recording head, which is driven according to printable data including image information representing the image to be printed and holder information concerning a type of the fabric holder to be used for forming the image, an obtaining unit to obtain the printable data from external environment, a storage unit with a storage area to store the holder information extracted from the printable data, an examination unit to examine as to whether the holder information for a current printing operation is identical with the holder information for a previous printing operation stored in the storage area, and an indication unit, which indicates a result of the examination obtained by the examination unit to notify a user of necessity of exchanging the fabric holders.

Abstract: An inkjet printing device, which is provided with a holding unit that is used to hold a substrate to be subjected to printing operation, an inkjet head that ejects ink onto the substrate held by the holding unit, and a controller that moves the holding unit relative to the inkjet head to perform the printing operation. In this structure, the controller operates to wait a predetermined stopping time after the holding unit is moved to start ejecting the ink onto the substrate held on the holding unit. The predetermined stopping time is determined depending on at least one factor that determines a time period required for mechanical vibrations of the holding unit caused by movement of the holding unit to decrease to a negligible level.

Abstract: A server acquires the total number of pages printed per hour and the number of pages printed per hour by each user on each printer in a network printing system in order to find printers whose hourly number of printed pages exceeds a load limit. The server also looks for printers having few printed pages per hour that do not exceed the load limit and issues a notification advising the user who is printing the largest volume on a printer exceeding the load limit to switch to a printer that prints few pages. Accordingly, a high concentration of printing found on a few printers can be moderated, reducing user wait time and excessive printer load.

Abstract: The present invention provides a ceramic sintered body excellent in oxidation resistance under high temperatures and markedly superior to the conventional ceramic sintered body in the mechanical strength over a wide temperature range of between room temperature and 1,500.degree. C. The ceramic sintered body of the present invention comprises at least one ceramic crystal grain selected from the group consisting essentially of a monosilicate represented by the general formula RE.sub.2 SiO.sub.5, where RE denotes a IIIa group element including yttrium, and a disilicate represented by the general formula RE.sub.2 Si.sub.2 O.sub.7, where RE denotes a IIIa group element including yttrium, and at least one additional element selected from the group consisting of Al, Cr, Hf, Nb, Zr, Ti, V, Ta, Ca and Mg which is segregated in the boundaries of the ceramic crystal grains in an amount of 0.1 to 15% by weight of the sintered body in terms of the oxide thereof.

Abstract: A sputtering target formed of a refractory metallic silicide having a composition MSi.sub.x including a mixture composition of an MSi.sub.2 phase in the form of particles (M: at least one refractory metal selected from a group consisting of W, Mo, Ti, Zr, Hf, Ni and Ta), and an Si phase provided as a matrix phase. Interface layers having a predetermined thickness are formed at the interfaces between the MSi.sub.2 phase and the Si phase. The value X in the composition formula MSi.sub.x is set to a range of 2.0 to 4.0, and the thickness of the interface layers formed between the MSi.sub.2 phase and the Si phase, the dispersion of the composition, the density ratio of the target, the electrical resistivity of the Si phase and the surface roughness are set to predetermined values. An uniform high-quality thin film in which a composition distribution is uniform can be manufactured stably by using this target.

Abstract: A sputtering target formed of a refractory metallic silicide having a composition MSi.sub.x including a mixture composition of an MSi.sub.2 phase in the form of particles (M: at least one refractory metal selected from a group consisting of W, Mo, Ti, Zr, Hf, Ni and Ta), and an Si phase provided as a matrix phase. Interface layers having a predetermined thickness are formed at the interfaces between the MSi.sub.2 phase and the Si phase. The value X in the composition formula MSi.sub.x is set to a range of 2.0 to 4.0, and the thickness of the interface layers formed between the MSi.sub.2 phase and the Si phase, the dispersion of the composition, the density ratio of the target, the electrical resistivity of the Si phase and the surface roughness are set to predetermined values. An uniform high-quality thin film in which a composition distribution is uniform can be manufactured stably by using this target.

Abstract: A sputtering target formed of a refractory metallic silicide having a composition MSi.sub.x including a mixture composition of an MSi.sub.2 phase in the form of particles (M: at least one refractory metal selected from a group consisting of W, Mo, Ti, Zr, Hf, Ni and Ta), and an Si phase provided as a matrix phase. Interface layers having a predetermined thickness are formed at the interfaces between the MSi.sub.2 phase and the Si phase. The value X in the composition formula MSi.sub.x is set to a range of 2.0 to 4.0, and the thickness of the interface layers formed between the MSi.sub.2 phase and the Si phase, the dispersion of the composition, the density ratio of the target, the electrical resistivity of the Si phase and the surface roughness are set to predetermined values. An uniform high-quality thin film in which a composition distribution is uniform can be manufactured stably by using this target.

Abstract: A SiC ceramic sintered body containing 0.05-5 atom % Sc, 10 atom % or less free carbon, 2 atom % or less oxygen, balance SiC, is described where 75% or more of the Sc is dissolved into the SiC grains.

Abstract: An SiC-based pressureless sintered product contains a sintered product main component containing grains of at least one additive selected from the group consisting of Tac, NbB.sub.2, VB.sub.2 and WB and the balance of SiC sintered grains constituting a SiC matrix, and a sintering assistant component. The additive grains have a maximum grain size not greater than an average grain size of the SiC sintered grains.

Abstract: A silicon carbide sintered body containing not less than 0.03% by weight of boron, a total of not more than 0.3% by weight of metallic element impurities including the boron, not more than 1.0% by weight of free carbon, a total of not more than 0.15% by weight of non-metal impurities other than the free carbon, and the balance essentially consisting of silicon carbide, and having a density of not less 3.10 g/cm.sup.3. The sintered body is manufactured by heating a molding of a mixture containing a silicon carbide powder, a boron-containing sintering assistant, and a carbon-containing oxygen scavenger to a sintering temperature. The molded body is maintained at a temperature lower than the sintering temperature during the heating process until an oxide film covering the silicon carbide powder is substantially removed by the oxygen scavenger, and the molded body is then sintered at the sintering temperature under a non-pressurized condition.

Abstract: A transparent, complex oxide ceramic having the formula:(Sr.sub.1-x Me'.sub.x) (Li.sub.1/4 Me".sub.3/4) O.sub.3wherein x is 0.01-0.50, Me' is at least one metal selected from the group of Ca, Ba, and Pb, and Me" is Nb and/or Ta. The present ceramics can be used in the fabrication of gas discharge tubes and for infrared-ray tubes as optical devices and as substrates for higher quality electronic parts, and as an insulator for microwave frequency electronic devices.