Abstract: A serial type inkjet printing apparatus performs the following processing. A slant is set between the nozzle arrayed direction and the carriage moving direction for each printing column in the carriage moving direction. The carriage position is detected. Image data stored in a print buffer in association with each printing column is divided based on the detected carriage position and the slant in the printing column corresponding to the set position of the carriage. The image data is read by separating it into respective data used for first-and-second-scan printings by the printhead in an identical region, based on the detected carriage position, and the slant in the printing column corresponding to the set position of the carriage. Printing is performed by first-and-second-scanning the printhead on the identical region, using the read image data.

Abstract: A dot data generating method uses a first inkjet recording device and a second inkjet recording device, in which a first image is printed using the first inkjet recording device based on first dot data which determines formation or non-formation of dots, and second dot data is generated to print a second image based on the second dot data using the second inkjet recording device in which a speed of a relative movement of the inkjet head and a recording medium when printing an image is small compared to the first inkjet recording device. The dot data generating method includes generating the second dot data by converting the first dot data such that data of each dot in which formation of a dot is determined is converted to form a plurality of dots at predetermined intervals between the dots in a relative movement direction in place of the each dot.

Abstract: An inkjet recording apparatus according to one aspect of the present disclosure includes nozzle, pressuring chambers, piezoelectric element, ambient condition obtaining portion, application portion, and control portion. Control portion causes application portion to output ejection driving-voltage by which piezoelectric element is deformed so as to eject droplets from nozzles in printing period in printing state, and causes application portion to output vibration driving-voltage by which piezoelectric element is vibrated so as to vibrate meniscus in each nozzle in non-printing period between printing periods in printing state.

Abstract: A method and apparatus for handling a time based error condition in an imaging apparatus. The method includes transporting a first media sheet from the media input tray towards the transfer nip of the imaging apparatus; and determining, when the first media sheet reaches a predetermined point in the media path, whether the print engine of the imaging apparatus is ready to transfer a first image of the plurality of images to the media sheet at the transfer nip. Upon a determination that the print engine is not ready, the first media sheet is transported through the transfer nip without transferring the first image thereto, until the first media sheet is placed in the output area, and a second media sheet is transported to the transfer nip, a first image is transferred to the second media sheet and the second media sheet is transported to the output area.

Abstract: An image forming apparatus includes a media roll, an image forming device, a conveyance unit, and a controller. In the roll, a printing medium having an adhesive face and no separation sheet on the adhesive face is wound in a roll shape. In pulling back the medium to the roll, the controller sets a linear velocity of the roll to be not lower than a linear velocity of a conveyance rotator of the conveyance unit. The controller controls a velocity difference between the roll and the rotator to be Va from a start of pulling back the medium to when a separation point of the medium from the roll reaches a tangent line of the roll in an area between the roll and the rotator. When the separation point reaches the tangent line, the controller switches the velocity difference from Va to Vb that is smaller than Va.

Abstract: An image processing method includes: forming a density unevenness measurement test image based on image data subjected to unevenness correction processing to correct density unevenness, using a preset unevenness correction value; acquiring a pre-conversion density measurement value that is a density measurement value of each density setting value for every recording element in the density unevenness measurement test image before processing after image formation using a recording head; converting the pre-conversion density measurement value into a post-conversion density measurement value corresponding to a density measurement value after the processing, using a density measurement value conversion value derived beforehand and indicating a conversion relationship of density measurement values before and after the processing for every density setting value and to which the set unevenness correction value is applied as the density setting value; and deriving a new unevenness correction value using the post-conve

Abstract: An inkjet printer including a body, a carriage, a recording head, a bendable connecting member, and a controller is provided. The controller executes a moving step to move the carriage in an orientation after the carriage is halted for a length, a measuring step to measure the period, and a discharging step to manipulate the recording head to discharge ink at a sheet. In the discharging step, if the measured period is within a first length, the recording head is manipulated to discharge the ink at a first discharging timing, and if the measured period is within a second length which is longer than the first length, the recording head is manipulated to discharge the ink at a second discharging timing, which is advanced to be earlier than the first discharging timing.

Abstract: A liquid ejection device includes an ejection head, a suction section, a space section, a collection part, an outlet section and a suction device. The suction section has a slit shaped opening. The space section is in communication with the suction section and has an internal volume greater than an internal volume of the suction section. The collection part is configured to collect the mist generated by ejecting the liquid by separating the mist from air suctioned by the suction section. The outlet section has a first opening and a second opening, the first opening is in communication with the space section and the second opening is in communication with the collection part. The suction device is configured to generate an air flow flowing from the suction section to the collection part. Opening area of the slit shaped opening is greater than opening area of the first opening.

Abstract: To reduce noise during paper conveyance while ensuring printing efficiency of an inkjet printer, a printing device is equipped with a control unit for moving a recording head back and forth in the scan direction according to the rotation of a carriage motor, a conveyance unit for extracting and feeding paper, conveying the paper in the sub scan direction to match the movement of the recording head to print the fed paper, and ejecting the printed paper according to the rotation of a conveyance motor, a paper reversal unit for coordinating with the rotation of the rotation means of the conveyance motor to reverse the front and back of the paper, and a printing control unit for controlling spraying of the ink from the recording head, as well as controlling the carriage motor and the conveyance motor.

Abstract: A power supply system includes: a switching power supply configured to rectify and smooth an alternating current voltage of an alternating current power supply and generate a direct current voltage; a small-capacity power supply having a power supply capacity smaller than a power supply capacity of the switching power supply; a sensor configured to output a detection voltage corresponding to a detection target; and a control device. The control device comprises: a reference voltage generation circuit configured to be fed with power from the small-capacity power supply and generate a reference voltage, a comparison circuit configured to compare the detection voltage output from the sensor with the reference voltage and generate a comparison voltage corresponding to the comparison result of the comparison circuit, and a monitoring unit configured to monitor the detection target based on the comparison voltage during the switching power supply is stopped.

Abstract: A printer includes a print unit that ejects ink droplets of at least one ink color onto the sheet, at least one roller that feeds the printed sheet, and a controller that controls the print unit to print the sheet based on image data that defines an ink provision amount of each ink color for every dot according to a print resolution. The controller detects, based on the image data, a broad solid area, and carries out a print setting change with respect to the broad solid area by making the print resolution in the image data lower and making the ink provision amount of each ink color in the image data larger according to the print resolution that is made lower. According to the printer, stains on the printed sheet can be restricted.

Abstract: A method of operating a printer includes identifying a halftone level a first ink drop parameter corresponding to a contone level in image data for using a contone to halftone mapping. The method includes operating printheads to form a printed pattern using the first ink drop parameter and identifying a reflectance level of the printed pattern in scanned image data. The method includes modifying the halftone level in the mapping if the identified reflectance level is outside of a tolerance range from a normalized reflectance value associated with the contone level and storing the modified halftone level in a memory for printing the contone level.

Abstract: An ink jet printing method includes providing an ensemble of dots to be printed. A current run is made of through the ensemble of dots to be printed, which includes, for each of dot of the ensemble of dots, deleting all neighboring dots from the current run having a distance less than at least one predetermined value and keeping non-deleted dots as remaining dots in the current run. The remaining dots are assigned to a certain layer corresponding to the current run. The remaining dots of the current run are then removed from the ensemble of dots. The foregoing steps are repeated until there are no further dots in the ensemble of dots.

Abstract: A method of operating a printer includes identifying coordinates in a device independent color space for a spot color, identifying color components in a device dependent full color profile in a printer model for an association between the spot color in the device independent color space and a device dependent color space, and emitting a pattern of colorants with reference to the color components to reproduce the spot color in a printed image. The colorant pattern has a colorant density exceeding a predetermined colorant limit threshold associated with printed colors other than spot colors.

Abstract: A printing apparatus that discharges liquid droplets onto a recording medium, includes a movable carriage; discharging units, which are installed on the carriage and include nozzles that discharge a liquid, pressure chambers that communicate with the nozzles, and piezoelectric elements provided for each of the pressure chambers; a first circuit substrate, which is installed outside of the carriage, and on which is installed a control signal supply unit that generates control signals; a second circuit substrate, which is installed on the carriage, and on which are installed a booster circuit that generates a plurality of voltages; in which a path length of the control wiring between the first circuit substrate and the second circuit substrate is longer than the path length of the wiring between the second circuit substrate and the piezoelectric elements.

Abstract: There is provided a liquid jetting apparatus including: a main body, a liquid jetting head including a plurality of nozzles, a first board including a data generation circuit which generates a jetting control data, a second board, and first and second wiring members respectively connecting the liquid jetting head and the first and second boards, wherein the first wiring member is provided with jetting-data transmission wires, and the first wiring member is arranged to bend on an inner side of the second wiring member.

Abstract: An inkjet printing apparatus includes a printhead including a temperature sensor and an element array formed by arraying a plurality of heat generation elements each of which generates a thermal energy required to discharge an ink in response to application of a driving pulse, a specifying unit configured to specify a portion used in printing of the element array, and a selection unit configured to select a driving pulse to be applied to the respective heat generation elements based on the portion specified by the specifying unit and a temperature of the printhead measured by the temperature sensor.

Abstract: A recording apparatus includes conveyance roller pair disposed on the upstream side of a recording unit. An image formation operation is forbidden once the trailing edge of a recording medium has passed the conveyance roller pair, to reduce margin amount at the trailing edge of the recording medium. In a case where determination is made that the distance from the trailing edge of the recording medium to the conveyance roller pair is smaller than a first conveyance amount, the recording medium is conveyed by a second conveyance amount which is smaller than the first conveyance amount, so that the trailing edge of the recording medium is on the upstream side of the conveyance roller pair and that the distance from the trailing edge of the recording medium to the conveyance roller pair is smaller than a predetermined distance.

Abstract: A process where there is deposited on a supporting substrate at least one first polymer layer and optionally at least one second polymer layer followed by treating the resulting formed layers or laminate with a laser.

Abstract: The present invention provides a mask for divided printing that completes an image by plural scans using inks of different plural inks, the mask being able to suppress possible grains during printing to reduce image degradation resulting from beading. If for example, among the print permitting pixels for which the total repulsive potential is to be calculated, a print permitting pixel Do has the highest total repulsive potential, changes in repulsive potential after movement of the pixels are determined and the print permitting pixel Do is moved to a pixel having the lowest total repulsive potential after the movement. This processing is repeated to enable a reduction in the total energy of the entire plane. Consequently, the print permitting pixels are appropriately dispersed in overlapping plane masks so as to have few low frequency components.