Thermal line printer with staggered head segments and overlap compensation
AssigneeEastman Kodak Company
InventorsStanley W. Stephenson, Marcello D. Fiscella
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AssigneeEastman Kodak Company
InventorsStanley W. Stephenson, Marcello D. Fiscella
Estimating the term…
A method of and apparatus for sequentially printing lines of image pixels in the thermal printing of a two-dimensional image on a wide receiver media employing a print head arrangement of the type comprising a plurality N of linear thermal print head segments each comprising a set n of thermal print elements, each element having a data bit input terminal, in an alternating, staggered pattern in first and second rows of N.sub.1 and N.sub.2 print head segments arranged across the media in a print line direction such that respective sub-sets of n.sub.1 thermal print elements of the adjacent ends of the N.sub.1 and N.sub.2 print head segments arranged in the first and second rows overlap in the print line direction. Each line of image print data into first and second print line data sub-sets which, when applied to the respective first and second rows of print head segments, print respective first and second line sub-images each having a complete segment and a partially complete segment, wherein the partially complete segments positionally overlap one another. The partially complete segments of the first and second line sub-images have their complete areas distributed throughout the respective segment in complementary patterns, which may reflect an arbitrary or random distribution.
A line-type printer for printing image pixels corresponding to print line data bits in an image line in a print line direction on a receiver comprising:
A method of operating a line-type printer having a plurality of print head segments arrayed in first and second rows in a print line direction, each print head segment further comprising a plurality of printing elements responsive to print line data bits applied thereto for printing image pixels in an image line on a receiver and responsive to sequentially applied print line data bit sets for printing successive image lines on the receiver, wherein the first and second rows of print head segments are positioned so that a first overlap sub-set of a number of the printing elements of each print head segment in the first row spatially overlaps with a second overlap sub-set of a like number of the printing elements of each adjacent print head segment in the second row, if any, thereby defining an overlap region, and wherein the receiver is moved relative to the first row and the second row of print head segments in printing each image line, the method comprising the steps of:
A method for thermally recording image data on a wide receiver media employing a print head arrangement of the type comprising a plurality N of linear print head segments each comprising a set n of printing elements extending between ends thereof, each of said printing elements having a data bit input terminal and adapted to be energized by a print data bit to effect the recording of an image pixel in a line on the receiver media, said N linear print head segments arranged in an alternating, staggered pattern in first and second rows of N.sub.1 and N.sub.2 print head segments extending across the media in a print line direction such that respective sub-sets of n.sub.1 printing elements of adjacent ends of the N.sub.1 and N.sub.2 print head segments arranged in the first and second rows overlap in an overlap region or regions in the print line direction, the method comprising the steps of:
Dependencies are inferred from the claim text.