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ISSN 2063-5346
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COMPARATIVE PRINT-EDGE ANALYSIS OF SHEET-FED OFFSET AND DRY ELECTROPHOTOGRAPHY (DEP) PRINTING TECHNIQUES BY HUMAN STANDARD OBSERVER METHOD

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Sumit Kumar, Nishant Tarar, Divyakshi
» doi: 10.48047/ecb/2023.12.si5a.0631

Abstract

A number of printing processes have come to exist in the printing world to cope up with ever-changing demands of the printers and customers. Two major printing processes which are used to print the cellulosic substrates are Sheet-fed Offset and Dry Electro-photography (DEP) technologies. Objective of this paper is to compare the Print-edges of Sheet-fed Offset and Dry Electro-photography (DEP) technologies by Human Standard Observer Method. A master test chart was prepared in Corel Draw Graphic Suit 20, using various test image elements i.e., line drawing, continuous tone and solid images and printed with Sheet-fed Offset and Dry-toner Electrophotographic presses available in the local market on uncoated, matte coated and gloss coated papers. The print-edge testing factors taken into the consideration were Raggedness, Blurriness, Contrast and Fill as per ISO 13660. Print-edge evaluation was carried out with the help of Standard Humans Observers who passed the Munsell Test. The average results of twenty observers were taken and forwarded for results and discussions

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