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Article #2640OCR as a way to measure printer quality
From: nils-peter.nelson
Date: Fri, 22 Mar 1991 22:48
Date: Fri, 22 Mar 1991 22:48
26 lines
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1672 bytes
At the Seybold Seminar, Adobe had an exhibit that included several new printers with their RIP. One was especially impressive-- the HP Series IIISi. Apparently, HP has a proprietary board that does spot size and place adjustment. The result is a 300dpi printer that yields quality more like 400 dpi. I picked up a sample "Stock Report" page. I also picked up a sample of the new Kodak 7016PS output, which looked more like conventional 300 dpi. How could one quantify the differences? I ran both samples through an OCR board (this one from Calera) and diff'ed the files. Embarrassingly, the text was *not* identical; apparently, Adobe had two different people key in identical text, and they made errors. In addition, one used FrameMaker and one PageMaker, so the hyphenation was different. I went through by hand and found: 6 errors in 1728 characters on HP 10 errors in 1716 characters on Kodak (the errors are all in the OCR, *not* in the printer). As a free plug to HP, whom we have never forgiven for foisting PCL on the world, the IIISi, at 15ppm for under $6,000 and outstanding quality, is absolutely worth considering. If Adobe could supply a *standard* page, we could automate the quality check.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!cbnewsl!npn From: npn@cbnewsl.att.com (nils-peter.nelson) Newsgroups: comp.text Subject: OCR as a way to measure printer quality Keywords: PostScript, OCR, HP Message-ID: <1991Mar22.224813.7086@cbnewsl.att.com> Date: 22 Mar 91 22:48:13 GMT Organization: AT&T Bell Laboratories Lines: 26