摘要:
Disclosed are methods (900) and apparatuses (600) for determining a location of a graphical object (2220) printed onto a print medium (230), said graphical object comprising a plurality of object marks, the method comprising the steps of superposing a two-dimensional reference pattern (710) having a pre-defined degree of accuracy over the printed graphical object, the two-dimensional reference pattern comprising a plurality of pattern marks (770); scanning the superposed printed graphical object and reference pattern to produce a scanned image (2400); determining a location coordinate (2923) of the graphical object in the scanned image (2400); and refining the location coordinate dependent upon the scanned reference pattern to determine a reference pattern coordinate (2904′) associated with the location coordinate (2923). Also disclosed are methods (1800), apparatuses, and computer program products for determining a head size (420) of a print head (3110) of a printer (3100) using the aforementioned method.
摘要:
Disclosed are methods (900) and apparatuses (600) for determining a location of a graphical object (2220) printed onto a print medium (230), said graphical object comprising a plurality of object marks, the method comprising the steps of superposing a two-dimensional reference pattern (710) having a pre-defined degree of accuracy over the printed graphical object, the two-dimensional reference pattern comprising a plurality of pattern marks (770); scanning the superposed printed graphical object and reference pattern to produce a scanned image (2400); determining a location coordinate (2923) of the graphical object in the scanned image (2400); and refining the location coordinate dependent upon the scanned reference pattern to determine a reference pattern coordinate (2904′) associated with the location coordinate (2923). Also disclosed are methods (1800), apparatuses, and computer program products for determining a head size (420) of a print head (3110) of a printer (3100) using the aforementioned method.
摘要:
Methods (700), apparatuses, systems (500) and computer program products for measuring spatial characteristics of an inkjet printer (200, 300) are disclosed. Group of marks (810/815) of a first predetermined pattern are printed (720) on a print medium (230) using a first group of nozzles (420). Groups of marks (820/825) of a second predetermined pattern are printed (720) using a second group of nozzles (420). A region of overlap of the printed groups of marks is formed. At least a portion of the print medium (230) having printed groups of marks is imaged. From the region of overlap, first and second groups of marks from the first and second printed patterns are selected (740). For each group of marks, a position representative of that group is determined An offset for measuring spatial characteristics of the printer (200, 300) between the first and second printed patterns is determined (750) dependent upon the representative position of each of the first and second group of marks.
摘要:
A method (300) is described of determining characteristic of an ink jet printer (15). A chart containing multiple regions or patches is printed (320) on a print medium (115) using the ink jet print (15). The chart includes at least a first region printed using a first set of nozzles, and at least a second region printed using a second set of nozzles. The first and second sets of nozzles are a predetermined distance apart in the printer head of the printer (15). The printing of the first and second regions is also separated by a print medium advance operation equal to the predetermined distance. This causes the first and second regions to be aligned in the direction of the print medium advance operation. The chart is then imaged using scanner (16) chart to form a chart image. The positions of the regions appearing in the chart image are next determined (340). The spatial alignment characteristic of the printer is calculated from the distance, in the medium advance direction, between said first and second regions.
摘要:
A glitter circulation device includes a housing defining a chamber configured to receive a doll. A tray is coupled to the housing and configured to hold a plurality of glitter particles. A fan is coupled to housing and in communication with the tray and the chamber. The fan is configured to draw the glitter particles from the tray and expel the glitter particles into the chamber.
摘要:
A glitter circulation device includes a housing defining a chamber configured to receive a doll. A tray is coupled to the housing and configured to hold a plurality of glitter particles. A fan is coupled to housing and in communication with the tray and the chamber. The fan is configured to draw the glitter particles from the tray and expel the glitter particles into the chamber.
摘要:
Methods (200), apparatuses (700), and computer program products are disclosed for detecting the functionality of a plurality of ink ejecting nozzles of a printing device. A test chart is printed (210) using the ink ejecting nozzles of the printing device. The test chart comprises line patterns. Each line pattern is associated with an ink ejecting nozzle and varies in one-dimension. The printed test chart is imaged (220) to generate an imaged test chart. Each line pattern in the imaged test chart is distinguishable from adjacent line patterns. The imaged test chart is analyzed (240) to determine if each of the line patterns exists at an expected location in the printed test chart. If at least one line pattern does not exist at an expected location, the ink ejecting nozzle corresponding to the line pattern that is not functioning is determined.
摘要:
Methods, apparatuses, systems and computer program products for measuring spatial characteristics of an inkjet printer are disclosed. Group of marks of a first predetermined pattern are printed on a print medium using a first group of nozzles. Groups of marks of a second predetermined pattern are printed using a second group of nozzles. A region of overlap of the printed groups of marks is formed. At least a portion of the print medium having printed groups of marks is imaged. From the region of overlap, first and second groups of marks from the first and second printed patterns are selected. For each group of marks, a position representative of that group is determined. An offset for measuring spatial characteristics of the printer between the first and second printed patterns is determined dependent upon the representative position of each of the first and second groups of marks.
摘要:
A method (300) is described of determining characteristic of an ink jet printer (15). A chart containing multiple regions or patches is printed (320) on a print medium (115) using the ink jet print (15). The chart includes at least a first region printed using a first set of nozzles, and at least a second region printed using a second set of nozzles. The first and second sets of nozzles are a predetermined distance apart in the printer head of the printer (15). The printing of the first and second regions is also separated by a print medium advance operation equal to the predetermined distance. This causes the first and second regions to be aligned in the direction of the print medium advance operation. The chart is then imaged using scanner (16) chart to form a chart image. The positions of the regions appearing in the chart image are next determined (340). The spatial alignment characteristic of the printer is calculated from the distance, in the medium advance direction, between said first and second regions.