Abstract: There is disclosed a head driving device which drives a plurality of pressure generating elements for generating pressure fluctuation in a jetted object contained in each of associated pressure chambers formed in a jetting head of a jetting apparatus to eject the jetted object from each of nozzles communicated with the associated pressure chambers. In the device, a head driver generates a drive signal which is selectively applied to at least one of the pressure generating elements to be driven. A bias potential provider selectively applies a bias potential to at least one of the pressure generating elements not to be driven.

Abstract: There is disclosed a head driving device which drives a plurality of pressure generating elements for generating pressure fluctuation in a jetted object contained in each of associated pressure chambers formed in a jetting head of a jetting apparatus to eject the jetted object from each of nozzles communicated with the associated pressure chambers. In the device, a head driver generates a drive signal which is selectively applied to at least one of the pressure generating elements to be driven. A bias potential provider selectively applies a bias potential to at least one of the pressure generating elements not to be driven.

Abstract: The present invention provides a storage device. The storage device includes a reset signal terminal, a clock signal terminal, a non-volatile memory, and a pull down resistance. The reset signal terminal is electrically connected to external equipment at a contact point, for receiving a reset signal. The clock signal terminal is electrically connected to the external equipment at a contact point, for receiving a clock signal. The data signal terminal is electrically connected to the external equipment at a contact point, for sending and receiving a data signal. The pull down resistance is connected to a lower side of electric potentials used by the storage device, at one terminal of the pull down resistance. The controller is initialized in response to the reset signal. The controller also writes to and reads from the non-volatile memory according to the clock signals and the data signals.

Abstract: The present invention is a container for holding printing fluid material. The container includes a detector, a memory unit, a communication module, a first electric power generator, and a second electric power generator. The communication module is configured to transmit at least one of a result of the detection and the information regarding the container to the printing device. The first electric power generator is configured to generate a first electric power by utilizing the radio wave received from the printing device. The second electric power generator is configured to generate a second electric power from the first electric power. The second electric power is supplied to both the detector and the memory unit.

Abstract: A plurality of small loop antenna cells 61, 62 and 63 are magnetically coupled to an antenna coil 8 of a non-contact type data carrier 3. In the plurality of small loop antenna cells, the directions of the magnetic moments of the signals transmitted to the non-contact type data carrier 3 are opposite to each other, the sum of the magnetic moments generated from all the small loop antenna cells 61 to 63 is zero and a conductor forming a short ring pattern 67 is provided collectively for the plurality of small loop antenna cells. Thus, imbalance caused between the small loop antenna cells 61 to 63 can be compensated for by the short ring pattern 67.

Abstract: The present invention provides a technique that prevents a shift of a driving waveform due to accumulation of errors in a process of generating the driving waveform to drive driving elements on a print head. The technique of the present invention successively sums up a plurality of gradient data at a preset calculation period to give a result of summation and carries out digital-to-analog (D-A) conversion with regard to only specific upper columns in the result of summation in synchronism with the preset calculation period, so as to generate a driving waveform. Each gradient data represents a local gradient of the driving waveform and is stored in a memory. In the process of generating the driving waveform, the technique of the present invention corrects the result of summation to a preset value under a predetermined condition. One preferable embodiment clears specific lower bits in the result of summation in synchronism with a floor signal.

Abstract: An information communicating member is adapted to be disposed on a liquid container for supplying a liquid to a liquid ejecting head of a liquid ejection apparatus. The information communicating member includes: an information storing portion storing therein liquid information with regard to the liquid contained in the liquid container; an antenna portion for communicating the liquid information stored in the information storing portion between the information communicating member and the liquid ejection apparatus in a wireless manner; and a base member on which the information storing portion and the antenna portion are disposed. The base member has an electric insulating property and an ultraviolet ray shielding property.

Abstract: There is disclosed a head driving device which drives a plurality of pressure generating elements for generating pressure fluctuation in a jetted object contained in each of associated pressure chambers formed in a jetting head of a jetting apparatus to eject the jetted object from each of nozzles communicated with the associated pressure chambers. In the device, a head driver generates a drive signal which is selectively applied to at least one of the pressure generating elements to be driven. A bias potential provider selectively applies a bias potential to at least one of the pressure generating elements not to be driven.

Abstract: The invention provides a liquid container for storing liquid to be supplied to a liquid consuming apparatus. The liquid container is constructed such that pressurized fluid is sent to its inside so that the liquid in the inside is delivered to the outside. The liquid container includes a container body which stores the liquid in its inside. The container body includes a pressurized fluid introduction port for introducing the pressurized fluid to the inside and a liquid delivery port for delivering the liquid to the outside. A detection unit is provided in the container body and outputs an output signal which is changed in accordance with a change in pressure of the liquid in the inside of the container body.

Abstract: In an ink jet printer, a print head is provided with a plurality of nozzles. Each of piezoelectric elements is associated with one of the nozzles, and is provided with a drive electrode and a common electrode. A head driver generates a drive signal for driving the piezoelectric elements, and selectively supplies the drive signal to at least one of the piezoelectric elements to eject an ink droplet from at least one associated nozzle. A bias power source applies a bias voltage having a predetermined potential to the common electrode of each piezoelectric element.

Abstract: In an ink jet printer, a control unit converts externally provided printing data into jetting data associated with a size of dot to be printed. A drive signal generator generates a drive signal including a plurality of drive pulses. In a printing head, a pressure chamber is communicated with a nozzle. A pressure generating element varies pressure inside of the pressure chamber when at least one of the drive pulses is applied. A decoder decodes the jetting data into pulse select information in accordance with a predetermined conversion relationship. A switcher selects at least one of the drive pulses to be applied to the pressure generating element in accordance with the pulse select information. Pattern data defines the conversion relationship. A common signal line transfers the jetting data and the pattern data from the control unit to the printing head.

Abstract: There is disclosed a head driving device which drives a plurality of pressure generating elements for generating pressure fluctuation in a jetted object contained in each of associated pressure chambers formed in a jetting head of a jetting apparatus to eject the jetted object from each of nozzles communicated with the associated pressure chambers. In the device, a head driver generates a drive signal which is selectively applied to at least one of the pressure generating elements to be driven. A bias potential provider selectively applies a bias potential to at least one of the pressure generating elements not to be driven.

Abstract: The present invention is a container for holding printing fluid material. The container comprises a detector, a memory unit, a communication module, a first electric power generator, and a second electric power generator. The communication module is configured to transmit at least one of a result of the detection and the information regarding the container to the printing device. The first electric power generator is configured to generate a first electric power by utilizing the radio wave received from the printing device. The second electric power generator is configured to generate a second electric power from the first electric power. The second electric power is supplied to both the detector and the memory unit.

Abstract: Circuit board 10 is of substantially rectangular shape, provided in the upper half of the juxtaposed face 13 with a substantially circular test terminal 20. In the lower half are provided a plurality of substantially rectangular terminals 21-27, arrayed in two rows, i.e., an upper and lower row, the upper row containing an I/O terminal 21 for data input/output, a power supply terminal 22 for supplying power, and a chip select terminal 23 for input of a chip select signal CS. The lower row of juxtaposed face 13 contains a ground terminal 24, a read/write terminal 25 for inputting read/write control signals W/R, a clock terminal 26 for inputting a clock signal CLK, and a ground terminal 27.

Abstract: A printing device that facilitates processes requested in relation to a print recording medium reservoir. When a contact detecting switch 25 is turned on by a proximate ink cartridge CA, a personal computer PC identifies the proximate ink cartridge CA. The personal computer PC, in the event that the duration of sustained proximity of the proximate ink cartridge CA is longer than a predetermined time interval Tref, reads out the remaining quantity of ink from the memory device module M of the proximate ink cartridge CA and displays this on an external display device 40. In the event that the duration of sustained proximity is shorter than predetermined time interval Tref, the personal computer PC drives the carriage 101 so as to move an ink cartridge CA installed on carriage 101 corresponding to the proximate ink cartridge CA to a replacement opening 14.

Abstract: Circuit board 10 is of substantially rectangular shape, provided in the upper half of the juxtaposed face 13 with a substantially circular test terminal 20. In the lower half are provided a plurality of substantially rectangular terminals 21-27, arrayed in two rows, i.e., an upper and lower row, the upper row containing an I/O terminal 21 for data input/output, a power supply terminal 22 for supplying power, and a chip select terminal 23 for input of a chip select signal CS. The lower row of juxtaposed face 13 contains a ground terminal 24, a read/write terminal 25 for inputting read/write control signals W/R, a clock terminal 26 for inputting a clock signal CLK, and a ground terminal 27.

Abstract: There is disclosed a head driving device which drives a plurality of pressure generating elements for generating pressure fluctuation in a jetted object contained in each of associated pressure chambers formed in a jetting head of a jetting apparatus to eject the jetted object from each of nozzles communicated with the associated pressure chambers. In the device, a head driver generates a drive signal which is selectively applied to at least one of the pressure generating elements to be driven. A bias potential provider selectively applies a bias potential to at least one of the pressure generating elements not to be driven.

Abstract: A print head includes rows of plural nozzles, from which ink drops are ejected. A plurality of driving elements are respectively associated with each nozzle. A plurality of switching circuits are respectively associated with each row of nozzles. Each switching circuit is provided with a plurality of switching elements, respectively associated with each driving elements. Each switching element supplies a signal to drive an associated driving element. Each of a plurality of detectors detects a condition of associated nozzles and outputting a detecting signal in accordance with the detected condition. A controller drives the print head based on the detecting signals. At least one signal line transmits the detecting signals to the controller in a time sequence manner. The number of the signal line is less than the number of the detectors.

Abstract: In an ink jet printer, a control unit converts externally provided printing data into jetting data associated with a size of dot to be printed. A drive signal generator generates a drive signal including a plurality of drive pulses. In a printing head, a pressure chamber is communicated with a nozzle. A pressure generating element varies pressure inside of the pressure chamber when at least one of the drive pulses is applied. A decoder decodes the jetting data into pulse select information in accordance with a predetermined conversion relationship. A switcher selects at least one of the drive pulses to be applied to the pressure generating element in accordance with the pulse select information. Pattern data defines the conversion relationship. A common signal line transfers the jetting data and the pattern data from the control unit to the printing head.

Abstract: In an ink jet printer, a print head is provided with a plurality of nozzles. Each of piezoelectric elements is associated with one of the nozzles, and is provided with a drive electrode and a common electrode. A head driver generates a drive signal for driving the piezoelectric elements, and selectively supplies the drive signal to at least one of the piezoelectric elements to eject an ink droplet from at least one associated nozzle. A bias power source applies a bias voltage having a predetermined potential to the common electrode of each piezoelectric element.