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Shapes of Printed Dots and Image Quality

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In this paper, we compare electrophotographic printing and ink jet printing, observing the shape of printed dots or clusters of dots, and consider the factors which affect the uniformity of dot size. It is important to discuss the shape of printed dots because in the halftoning process, dispersed dots and clustered dots produce the mid-tone images. As the results of our experiment, it is clear that in the case of dots printed by electrophotographic method, the uniformity of the shape increases in proportion to the cluster size. On the other hand, in the ink jet printing method, the increase of uniformity is comparatively less obvious.

Document Type: Research Article

Publication date: 2001-01-01

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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