61results about "Printing" patented technology

An ink cartridge for an ink jet recording device, includes: a container having an ink supply port; at least two ink chambers partitioned in the container, one being located substantially in an upper section and the other being located substantially in a lower section; an ink suction passage connecting a bottom region of the lower section ink chamber to a bottom region of the upper section ink chamber; and a negative pressure generating mechanism provided to a flow passage connecting the upper section ink chamber to the ink supply port.

An ink jet printing apparatus which performs printing by using a print head. The print head has at least a predetermined number of nozzles to eject ink. The apparatus includes a first prefiring mechanism for causing the print head to perform a prefiring operation to eject ink from nozzles of the print head for maintaining printing quality after a first time interval during a printing operation. The apparatus also includes a driving mechanism for driving nozzles of the print head based on data to be printed, and a second prefiring mechanism for causing the print head to perform the prefiring operation in a case where a number of the nozzles to be driven is changed. Preferably, the apparatus further includes a shifting mechanism for causing the driving mechanism to drive the nozzles of the print head based on the first time interval during the printing operation so as to enhance a power of ejecting ink and continue the printing operation after the first time interval without performing the prefiring operation. The shifting mechanism also preferably delays the prefiring operation to a second time interval longer than the first time interval, and after the second time interval, the first prefiring mechanism causes the print head to perform the prefiring operation. In a case where the number of nozzles to be driven is changed within a time duration after the first time interval and during the second time interval, the second prefiring mechanism causes the print head to perform the prefiring operation.

A test chart for printing black bars and white bars of a barcode, each of which has one of multiple different numbers of dots-in-width, is printed on a printing device on which barcodes are printed. In image data on the test chart, the space between neighboring black bars on the test chart is used as a white bar. The widths of black bars and white bars of a barcode are measured based on the image of the printed test chart. Based on this measurement result, the numbers of dots-in-width of black bars and white bars to be set at a printing time are calculated as barcode correction values so that the black bar widths and white bar widths of a printed barcode meet predetermined sizes. This configuration generates barcode configuration information, or barcodes, that satisfy individual user's use condition, quickly and with the minimal use of paper and ink.

A thermal modulator device for gas chromatography and associated methods. The thermal modulator device includes a recirculating fluid cooling member, an electrically conductive capillary in direct thermal contact with the cooling member, and a power supply electrically coupled to the capillary and operable for controlled resistive heating of the capillary. The capillary can include more than one separate thermally modulated sections.

A fluid ejecting device and method of forming same are provided. The fluid ejecting device includes a substrate having a first surface and a second surface located opposite the first surface. A nozzle plate is formed over the first surface of the substrate. The nozzle plate has a nozzle through which fluid is ejected. A drop forming mechanism is situated at the periphery of the nozzle. A fluid chamber is in fluid communication with the nozzle and has a first wall and a second wall with the first wall and the second wall being positioned at an angle relative to each other. A fluid delivery channel is formed in the substrate and extends from the second surface of the substrate to the fluid chamber. The fluid delivery channel is in fluid communication with the fluid chamber. A source of fluid impedance comprises a physical structure located between the nozzle and the fluid delivery channel.

A printer is disclosed which comprises: (a) a pagewidth printhead assembly having two opposed pagewidth printheads and a plurality of nozzles located along each of the printheads for delivering ink onto print media as it is transported past the printheads, and (b) a capping mechanism having (i) a capping member located adjacent the printheads and having a length corresponding substantially to that of the printheads, (ii) a first actuating mechanism arranged to effect relative movement of the printheads from a printing first position to a spaced-apart second position and (iii) a second actuating mechanism arranged to interpose the capping member between the printheads to effect nozzle capping engagement of the two printheads when the printheads are in the second position.

A mechanism is provided for allowing a wipe member formed of an elastic material to abut against a nozzle plate in which a plurality nozzles communicating with a pressure chamber for holding ink therein are arranged, moving the wipe member along the nozzle plate to remove ink and foreign particles remaining in the nozzle plate, and switching the position of abutment of the wipe member against the nozzle plate, whereby satisfactory sweeping capability of the wipe member can be maintained without providing a wipe member cleaning mechanism and performing the work of replacing of the wipe member with another.

The invention discloses a microelectronic temperature sensor and a preparation method thereof. Specifically, the sensor is a graphene oxide capacitive temperature sensor based on a post-COMS MEMS micro-processing technology. A graphene oxide material is a new type nano-material which has a high dielectric constant, and a dielectric constant value can be changed rapidly along with the change of a temperature. Compared with the temperature sensors such as a common Pt resistor and a PN junction, the microelectronic temperature sensor has the advantages that because a current does not pass through a device, the influence of self-heating effect on a measurement process is avoided when the measurement is carried out, the measurement error is low, the heat loss is low and the dynamic response time is short. Because the dielectric constant of the graphene oxide can be increased rapidly along with the rise of the temperature at the low temperature, a method for detecting a required high-sensitivity temperature sensor at the low temperature is realized. Through combination of the post-COMS MEMS micro-processing technology, the temperature sensor is small in size, low in cost and short in response time.

In ink supply to a print head including: a common liquid chamber having an ink flow-in port into which the ink flows, and an ink flow-out port for returning the ink; discrete liquid chambers for each supplying the ink to a ejection port from the common liquid chamber; and gas-liquid separation members for each making only gas flow out from the discrete liquid chamber, wherein the pressure adjustment adjusts pressure relations of the pumps so that a relationship between a circulation pressurization pump, a circulation suction pump, and an air suction pump are provided.

A printing system having a media width printhead having a first fluid port at one longitudinal end of the media width and a second fluid port at the other longitudinal end of the media width; a first fluid path connected to the first fluid port of the printhead, a second fluid path connected to the second fluid port of the printhead, a third fluid path interconnecting the first and second paths, wherein the first, second and third paths are configured so that fluid flows between the first and second paths via the printhead and via the third fluid path.

A dividing unit generates, from input data, divided data corresponding to the first area and the second area to be printed by a recording head and partly overlapping each other. The dividing unit supplies the respective divided data to the first processing unit and the second processing unit which can concurrently perform processing. Each of the first and second processing units generates the recording image data from the divided data based on a characteristic of the recording head corresponding to a recording area assigned to one of the processing units and a partial area assigned to the other processing unit. Each of the first and second processing units then performs driving control on the recording head based on data, in generated recording image data, which corresponds to an area recorded by one of the processing units.

An ink composition for inkjet recording, and more particularly, an ink composition for inkjet recording in which a kogation problem in a thermal inkjet printer can be decreased.

A liquid consuming apparatus includes: a liquid consumer; a liquid receiver; a first waste-liquid storage including (i) a first housing connected to the liquid receiver to allow liquid communication between the first housing and the liquid receiver, and (ii) a first liquid absorber disposed in the first housing; and a second waste-liquid storage including (a) a second housing connected to the first waste-liquid storage to allow liquid communication between the second housing and the first waste-liquid storage, and (b) a second liquid absorber disposed in the second housing. The first housing has a first opening that opens toward the second housing. The second housing has a second opening that opens toward the first housing. The first liquid absorber protrudes from the first opening to an outside of the first housing. The second liquid absorber is in contact with the first liquid absorber protruding from the first opening.

A fluid ejector having a first surface, a second surface, and an orifice that allows fluid in contact with the second surface to be ejected. The fluid ejector has a non-wetting layer exposed on at least a first surface of the fluid ejector, and a overcoat layer exposed on a second surface, the overcoat layer being more wetting than the non-wetting layer. Fabrication of this apparatus can include depositing a non-wetting layer on the first and second surfaces, masking the first surface, optionally removing the non-wetting layer from the second surface, and depositing an overcoat layer on the second surface.

Disclosed are an ink box chip (200), an ink box (400), and a structural body (700). The ink box chip comprises a circuit board (201) and at least two container side terminals (202) used for contacting apparatus side terminals (500). The circuit board comprises a first plane (203) and a second plane (204) perpendicularly intersecting with the first plane, and the superficial area of the second plane is smaller than the superficial area of the first plane. The container side terminals are disposed on the second plane. One ends of the container side terminals intersect with the first plane, and the other ends of the container side terminals intersect with a third plane. The third plane is opposite to the first plane. The container side terminals are disposed on the second plane with a smaller superficial area on the circuit board, and the container side terminals penetrate the second plane and are arranged into a row, the apparatus side terminals easily contact the container side terminals, thereby improving the stability of an electrical connection between an ink box and a printer.

The invention discloses a method for adjusting the parameters of the chip to match an ink box with non-standard capacity and a chip thereof, wherein, the three parameters of reset threshold, reset original value and limited reset time are set according to the capacity of storage material contained in the ink box compared to the capacity of storage material in the ink box with standard capacity in the chip. By adjusting the three parameters in the chip, matching use of the chip and the ink box with non-standard capacity can be achieved, thus leading the printing equipment to print by using the ink box with non-standard capacity of the chip in this invention and using the storage material in the ink box completely to not waste the storage material in the ink box.

A piezoelectric element has a first electrode containing platinum, a piezoelectric layer formed above the first electrode, and a second electrode formed on the piezoelectric layer. The piezoelectric layer is composed of an oxide containing potassium, sodium, niobium, bismuth, and iron.

A liquid discharge head includes a liquid discharge substrate including a discharge port for discharging liquid, and a flow path member including a transparent member that is transparent to a laser beam, an absorption member capable of absorbing a laser beam, and a flow path for supplying liquid to the liquid discharge substrate, wherein the flow path is formed between the transparent member and the absorption member by emitting a laser beam toward a flow path portion of the absorption member constituting a portion of a wall of the flow path and toward a periphery of the flow path portion through the transparent member and thereby welding the transparent member and the absorption member at the periphery of the flow path portion, and wherein the flow path portion includes an inclined surface inclined with respect to a direction of the laser beam that has passed through the transparent member.

A multi-user digital laser imaging system for imaging film from bar coded cartridges as a function of image values representative of the images to be printed. The imaging system includes memory for storing transfer functions and film models for each of several users. The transfer functions characterize the relationships between image values and expected imaged film transmittance quantities. The film models characterize the relationship between the transmittance quantities and laser drive values that will provide the appropriate film exposure. An image management subsystem generates lookup tables characterizing the relationship between image values and laser drive values on the basis of user-selected transfer functions and film models selected by the system through the use of film identification information read from the bar code. During imaging operations the image management subsystem accesses the lookup tables as a function of the image values to obtain the appropriate laser drive values. The transfer functions can be modified to accommodate user preferences. Test wedge calibration procedures are periodically implemented to correlate the film models to measured sensitometric characteristics. Density patch calibration procedures are performed during each imaging operation to correct for drifts caused by the film developing subsystem.

An inkjet printer includes: an inkjet printhead; an ink delivery system configured for supplying ink to the printhead at a negative hydrostatic pressure; and an air chamber in fluid communication with the ink delivery system. The air chamber has an air-permeable wall which is impervious to the ink. The air chamber provides dampening of pressure fluctuations in the ink delivery system and, further, is self-recovering from ingress of ink into the air chamber.

The invention provides a thermal head which can execute high-quality printing by preventing foreign matters such as dust from accumulating at the printing time at a part where a thermal insulating layer is formed. The thermal insulating layer 2 of the thermal head has a surface partially projected thereby forming a projecting part 2a with a vertex part. Heating elements 3a are set at the surface of the projecting part 2a. A cross sectional shape of the projecting part 2b in a direction orthogonal to the arrangement direction of heating elements 3a has an inclined face 2c formed at a face side 2b. The one face side 2b is formed lower than the other face side 2d. The projecting part 2a is formed to have a height from the one face side 2b of 5-50 [mu]m.

An ink composition contains resin particles, a pigment, glycol ether, and water, wherein the resin particles satisfy the condition defined by Relational Expression (1)

1.0≤(ϕ2/ϕ1)≤12.5  (1)

(where ϕ1 represents the volume average particle size of the resin particles in a solution containing 20 mass % of the resin particles and 80 mass % of water, and ϕ2 represents the volume average particle size of the resin particles in a solution containing 90 mass % of the resin particles and 10 mass % of water).

Adopted is a thermal head, including: a support substrate including a concave portion formed in a front surface thereof; an upper substrate, which is bonded in a stacked state to the front surface of the support substrate and includes a convex portion formed at a position corresponding to the concave portion; a heating resistor provided on a front surface of the upper substrate at a position straddling the convex portion; and a pair of electrodes provided on both sides of the heating resistor, in which at least one of the pair of electrodes include: a thin portion, which is connected to the heating resistor in a region corresponding to the concave portion; and a thick portion, which is connected to the heating resistor and is formed thicker than the thin portion.