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<x-flowed>A nice informative overview of RIPping. I didn't catch the original ..."ejects too soon" conversation, but it sounds like my syndrome. Been printing direct from PC to 9000 so I can use my ICM profiles (The Fiery RIP doesn't) But this 130M file seems to be too much for the system; the printer "finishes" and ejects the paper after only 10% is printed. I changed the spooling settings to "print after last page..." and changed to generic "printer port" as Epson suggested. But now the printhead waits for .5 to 1 second after each pass. Hoping I can speed things up without going back to the Fiery. Maybe a RIPserver is necessary? Any comments or suggestions? I have 128M RAM,if that's significant. Ed Fausty, Jersey City, NJ >From: rafeb <rafeb@channel1.com> >Reply-To: epson-inkjet@leben.com >To: epson-inkjet@leben.com >Subject: RIPs (was: ...ejects too soon) >Date: Sun, 23 Jan 2000 10:53:26 -0500 > >At 06:22 AM 1/23/00 -0800, Bill Twieg wrote: > > >Pam, thanks for your RIP explanation. I had no idea what it meant, but > >figured someone would explain it sooner or later. > >[Pam Niedermayer] > >RIP is the acronym for raster image processor (I think). > >RIP's translate from raster (bitmap, such as the Photoshop > >native method of dealing with images) to vector, in this > >case Postscript. Vectors treat graphics as objects, which > >means they can be resized and still maintain their > >appearance. When bitmaps are resized larger, you'll see > >stairstepping on the lines. > > > >So if you need to print on a Postscript printer or print > >from a vector program such as Illustrator or Freehand, you > >want to use the RIP. As long as you continue to print from > >PhotoDeluxe to the 3000, you don't have to use the RIP, > >particularly if you're happy with the way your images are printing. > > > >Minor correction. Pam got it backwards in the >first paragraph (but correctly in the 2nd.) > >Postscript is primarily used to convert from >vector objects to raster (bitmap), in programs like >Illustrator and Quark. Much less so in programs >like Photoshop, which work almost entirely >on bitmapped images. > >Vector objects can be reshaped and resized >as often as desired, with no loss of information. >That's because the object exists as a set of >equations, ie., a set of formulas/statements in >Postscript syntax. > >The job of a RIP is to convert the Postscript >formulas/statements into bitmaps specifically >for one output device or another. RIPs are >inherently output-device-specific. Analogy: > > >Postscript :: computer language (eg., FORTRAN, > Pascal, C, C++, Lisp, etc.) > >RIP :: Compiler for some specific CPU or > microprocessor (eg., C compiler for > x86 family, or FORTRAN compiler for > Linux running on a Vax.) > > >In terms of purely bitmapped images, RIPs >have a secondary function, more of interest to >Epson users. In this context, they're used >as alternative printer drivers, the >benefit being the ability to accept CMYK >bitmap files, without mangling, and with >CMYK controls not present in the Epson drivers. > >RIPs are much more likely to be used with >the "pro" Epson models like the 3000 and the >5000 than the smaller, hi-tech Photo Epsons. > >There are a number of reasons for this. For >one thing, professional users are more >demanding in their need for objectively >accurate color. Having spent a fair bundle >of cash on the printer itself, the cost of >the RIP isn't such a big deal. In the case >of the Epson 5000, the cost of the Fiery RIP >was about 50% of the printer's initial $10K >selling price. > >Another reason is that the smaller Photo >Epsons produce remarkable images, even >without a RIP. So much so, that nobody's >really written an affordable RIP for these >printers that can match the output of the >original Epson drivers. > >Adobe's PressReady is a new "breed" of RIP >that may change this equation. I haven't >heard yet from anyone using it on an Epson >1200. We've heard from several folks on >this list using PressReady on the Epson 3000. > >If you're a pre-press professional, if >CMYK is a "comfortable" working space for >you, if you're generating contract proofs >for commercial clients, then you may well >want a RIP for your work. For the rest of >us, making pretty pictures on our Photo >700s, there's much less of a need. > > >rafe b. > > >- >Please turn off HTML mail features. Keep quoted material short. Use >accurate subject lines. http://www.leben.com/lists for instructions. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com - Please turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for instructions. </x-flowed>
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