38results about "Visual representation by matrix printers" patented technology

An inkjet printing apparatus comprises: a first printing unit that prints a specific color image by applying a specific color ink having a specific color on a printing medium; a second printing unit that prints a color image by applying a color ink onto the specific color image printed on the printing medium; and a control unit that controls an application amount of the specific color ink by the first printing unit. The control unit determines an application amount per unit area of the specific color ink in accordance with a viewing condition in a case where an observer views a printing medium on which the color image is printed.

An inkjet printing apparatus includes: a positional displacement amount calculation unit configured to, during printing processing, calculate a positional displacement amount of printing paper in a paper width direction based on colorimetric data obtained by colorimetry of a color chart by a colorimeter; a colorimeter movement mechanism configured to move the colorimeter; and a colorimeter movement control unit configured to control an operation of the colorimeter movement mechanism based on the positional displacement amount calculated by the positional displacement amount calculation unit.

A printing method includes executing a duplication process so that a left-end nozzle (42L) of a first head (11B) and a right-end nozzle (42R) of a second head (11A) form the same pixel. Even in a case where an amount of overlap between two pixels which are formed by two liquid droplets ejected, respectively, from an end nozzle of one head unit and an end nozzle of the other head unit which are adjacent to each other is not 0 (zero), the printing method is capable of reducing the decrease in image quality due to the amount of overlap which is not 0.

An image forming apparatus includes a first ejection portion, a second ejection portion, a detection processing portion, and a determination processing portion. The first ejection portion includes a plurality of first nozzles. The second ejection portion includes a plurality of second nozzles. The detection processing portion detects, for each line data included in image data, edges included in a correspondence area corresponding to an overlapping portion between the plurality of first nozzles and the plurality of second nozzles in the line data. The determination processing portion determines, when the edges are detected, a division position for dividing the line data based on a position of any of the edges, and randomly determines, when the edges are not detected, the division position in the correspondence area.

An apparatus comprises: a printing unit configured to print an image on a print medium by applying a first ink, a second ink, a first reactive liquid, and a second reactive liquid; a generation unit configured to generate first print data by the first ink based on first image data, and generate second print data by the second ink based on second image data; a determination unit configured to determine application amounts of the first ink, the second ink, the first reactive liquid, and the second reactive liquid based on the first print data and the second print data; a conveyance unit configured to convey the print medium; and a control unit configured to control the printing unit to drive the printing unit in synchronization with conveyance by the conveyance unit based on the determined application amounts.

A printing apparatus includes a halftone processing section that uses a dither mask to determine whether or not to form a dot in each of a plurality of pixels constituting an output image based on an input gradation value of an original image, and a head unit that forms the output image on a medium based on a processing result of the halftone processing section, the output image includes a mixed region and a single region, a length of the mixed region is a first length, a length of the single region is a second length, and the number of elements of the dither mask is N times or 1 / N times a total number of the number of pixels corresponding to the first length and the number of pixels corresponding to the second length.

A method of setting a printhead drive voltage of a printhead (40) of a bidirectional scanning type multicolor inkjet printer (12) for printing an image on a print medium, the method includes printing a first test pattern (28; 30) by ejecting a first droplet (44) and a second droplet from a nozzle (42) of each printhead (40) at different printhead drive voltages during movement of the carriage (14) by a first stroke and an opposite second stroke in a scan direction at a predetermined position of the printhead. The injection velocity is calculated according to the test pattern scan, and the injection velocity is compared to a reference injection velocity. Based on the comparison, a corrected printhead drive voltage that can be used for actual printing is determined.

An image processing apparatus includes an obtaining unit to obtain image data, a judgment unit to judge whether a barcode is included in the image data for each piece of band data corresponding to a printable region by scanning a printing unit, the barcode formed of a region in which bars are arranged side-by-side in a direction in which the printing unit scans over a printing medium, the judgment unit judging whether to use only a black printing element in the scanning for printing the band data. A determination unit determines the number of times to perform scanning for completing printing the piece of band data judged as not including the barcode is a first number, and that the number of times to perform scanning for completing printing the piece of band data judged as including the barcode by the judgment unit is a second number greater than the first.

Systems and methods for operating a printing system. The methods comprise: identifying a pixel in a bit map (BM) in which ink drop is to be ejected by inoperative inkjet (the pixel having a first drop value (DV)); identifying other pixels in BM that are to be analyzed in a pixel order defined by a displacement map (each other pixel having a second DV); performing a higher preference action analysis of only first ones of the pixels assigned a given priority level of a plurality of different priority levels defined by a priority map to determine whether a higher preference action (TPA) is allowable based on first and second DVs; and performing a lower preference action analysis of only the first ones of the pixels to determine whether a lower preference action is allowable based on first and second DVs, when a determination is made that HPA is not allowable.

As a result of the processing by the dot arrangement unit, dots are arranged so that in a first edge pixel group located in a first end portion of the object in the scanning direction and adjacent to a boundary between the object and an outside of the object, a ratio of arranging dots in the second regions is lower than a ratio of arranging dots in the first regions, and in a second edge pixel group adjacent to the boundary and located in a second end portion different from the first end portion and on a opposite side of the first end portion in the scanning direction, a ratio of arranging dots in the first regions is lower than a ratio of arranging dots in the second regions.

A controller of an ink-jet recording apparatus creates, for each of line heads, a print queue indicating a queue of print jobs each for forming a multicolor image on a sheet and sequentially executes the print jobs in accordance with the print queue. When a width of the sheet is smaller than a sheet width for use in the print job not yet being executed, the controller sets, on a basis of each of the line heads, width information on the sheet in association with the print job not yet being executed in the print queue at the line head and executes, based on the width information set with respect to the print job not yet being executed at each of the line heads, mask processing for reducing a size of a color image of the print job not yet being executed in a widthwise direction of the sheet.

An image recording apparatus includes a platen, a recorder, and a controller. The platen includes ribs arranged at intervals in a first direction and protruding from a base. The platen supports a recording medium on at least a part of the ribs. The recorder is arranged to face the platen and records an image on the recording medium by causing a colorant to adhere to the recording medium. The controller controls the recorder to record a borderless image, in which no margin is reserved at least on a first end of the recording medium, by causing a portion of the colorant to adhere to the recording medium and another portion of the colorant to exceed in the first direction from the first end of the recording medium by a first length. The first length is a length corresponding to a size of the recording medium in the first direction.

A recording condition determining method executed by a recording device performing recording by a main scanning (P1, P2, P3, P4), in which while moving a recording head (15) in a main scanning direction (D1, D2), dots are ejected from nozzles (17) onto a recording medium (30), and a sub scanning, in which the recording medium is transported in a sub scanning direction (D3). The method includes a patch recording step of recording patches (45, 46, 47, 45-1, 46-1, 47-1) on the recording medium by overlap-processing in which the main scanning is performed on a partial region of the recording medium a plurality of times in an overlapping manner, the patch recording step being performed by recording the patches at a plurality of different positions in the sub scanning direction by a plurality of types of the overlap-processing under respectively different recording conditions, in a single recording job performed by the recording device. The method further includes a selection accepting step of accepting selection of a patch from among a plurality of the recorded patches, and a determination step of determining, as a recording condition of the overlap-processing of an actual recording, the recording condition of the overlap-processing corresponding to the patch selected in the selection accepting step.

The present invention provides a printing system and a printing method in which precision of a printing process is improved, the printing system including: a controller that generates printing data; a user device generating a first control command, generating modulation data based on a user input, and generating a second control command based on the user input; an additional controller receiving the print data and a second control command, the additional controller generating a driving signal based on the second control command, and the additional controller including a memory for storing waveform information received from the user device; and a printing device performing a printing operation based on the driving signal.

A printing apparatus includes a halftone processing section that uses a dither mask to determine whether or not to form a dot in each of a plurality of pixels constituting an output image based on an input gradation value of an original image, and a head unit that forms the output image on a medium based on a processing result of the halftone processing section, in which a direction in which a plurality of heads discharge a liquid is set as a first direction, a direction in which the medium is transported is set as a second direction, a direction orthogonal to the first direction and the second direction is set as a third direction, the output image includes a mixed region and a single region, a length of the mixed region in the third direction is a first length, a length of the single region in the third direction is a second length, and the number of elements of the dither mask in the third direction is N times or 1 / N times a total number of the number of pixels corresponding to the first length and the number of pixels corresponding to the second length.

Rendering a color separation wherein diluted digital images are obtained wherefrom consecutive strips are generated having an overlap and wherein the non-overlap zones and overlap zones are halftoned to obtain non-aligned halftone rasters which are then transferred to a print controller of a digital printer for printing the color separation.

The timing adjustment of an imaging trigger is facilitated. An inkjet print apparatus includes: an imaging section that captures a drawing pattern formed on an object to be drawn with ink and generates a captured image; an inspection machine that performs image inspection of the drawing pattern using the captured image; a storage section that stores area information indicating an area in which the drawing pattern on the object to be drawn can be captured, the area information being determined on the basis of an angle of view information defining an imaging field of view of the imaging section; a detection sensor that detects arrival of the object to be drawn; and a control section that determines an issuance timing of an imaging trigger on the basis of the area information, a position of an element, and a detection timing of the detection sensor.

Provided is a printing method including: performing a plurality of processing cycles, in which a print image is printed on a substrate in each of the processing cycles, in which the print image used in each of the processing cycles is formed of a plurality of divided images, the plurality of divided images includes a first divided image printed at a first position of the substrate and a second divided image printed at a second position of the substrate, and the first divided image and the second divided image are generated in different processing cycles.

Examples include a method comprising preparing nominal firing data of a print job for a first printhead die and for a second printhead die of a page wide array printer. The first printhead die is located downstream from the second printhead die along a media path of the printer, the printhead dies being offset along the media path by an offset distance. The methods comprises starting printing by applying the nominal firing data to the printhead dies; receiving a print job interruption request during printing of the print job; and in response to receiving the job interruption request, modifying the nominal firing data to obtain modified firing data for interrupting printing using the first printhead die while continuing printing using the second printhead die during a specific time period after the first printhead die interrupted the printing, the specific time corresponding to the offset distance.

An inkjet printing method, an inkjet printing apparatus, and an electronic apparatus formed utilizing the same are provided. The inkjet printing method includes generating volume data by measuring a volume of an ink droplet discharged from each of a plurality of nozzles, generating particle number data by measuring a number of solute particles within the ink droplet discharged from each of the plurality of nozzles, forming a first nozzle group by grouping, based on the volume data and the particle number data, nozzles that are to discharge ink into a first region from among the plurality of nozzles, and discharging the ink into the first region by the nozzles of the first nozzle group.

The application provides a micro optical anti-counterfeiting label based on single-molecule quantum coherence and a reading system and a preparation method thereof, and belongs to the technical field of micro optical anti-counterfeiting labels; solves the problems of high preparation cost, easy damage and easy environmental interference of traditional micro optical anti-counterfeiting label technology; uses inkjet printing technology to construct anti-counterfeiting information through spatial distribution of single molecules; uses inherent coherence characteristics of single molecules as an anti-counterfeiting information carrier; detects single-molecule coherence dynamics evolution through femtosecond double-pulse pumping detection technology; realizes frequency domain imaging by extracting modulation intensity through DFT transformation; and adds quantum dots on single molecules as interference signals to improve the noise resistance and information hiding capacity of the anti-counterfeiting label.

An image forming apparatus includes a controller that causes a plurality of ink heads to eject ink to form a test chart, a density calculator that analyzes the test chart that has been read, and calculates the density of each of the images respectively formed by the plurality of ink heads, a decider that decides whether the density of the images is within a predetermined range from a density average of the images respectively formed by the ink heads of the same color, and an adjustment value calculator that calculates, with respect to the ink head that has formed the image, the density of which is deviated from the predetermined range, an adjustment value for adjusting the reference voltage to be used by the drive device driving the ink head, such that the density of the image to be formed becomes closer to the density average.