Details:
Summary:
There is a need for certification in the printing industry worldwide. Printing certification systems, such as the G7(r) developed by IDEAlliance, have been adopted successfully in the U.S. and Asian printing industries. In order to increase the value of certification, there is � a need to analyze the percent pass/fail � (%pass) of all jobs submitted as a whole and by printing process. Indeed, it is in the mutual interests of printers and print buyers to find out how a certification scheme performs as it applies to the real printing industry. Are the tolerances too tight or too loose? It is equally valuable to determine if a particular conformity requirement and its associated tolerance causes more non-conformance than other requirements. A database of more than 700 data files, measured from the P2P25 targets and made available from Rochester Institute of Technology (RIT), was analyzed.
The results � of this � analysis showed � that: (1) 59% of the submissions � passed the official G7(r) � criteria, � while � 82% passed the relaxed tolerances; (2) gray balance (?Ch) was the major cause of non-conformance � as opposed to tone reproduction � requirements; � and (3) digital � printing yielded � more passing files (73%) than � offset printing (56%) under � the G7(r) � criteria � Additionally, � Fujifilm � has proposed � a different � conformity assessment system with three requirements and one metric (?E00). These results showed that this method had a lower %pass than the official G7(r) method.