Randall R Schulz wrote: > On Sunday 03 June 2007 11:07, Carlos E. R. wrote: >> The Sunday 2007-06-03 at 13:20 +0100, Lívio Cipriano wrote: >>>> It looks like your printer does not have enough memory to handle >>>> the postscript file. The pcl version requires your computer to >>>> process the file and generate an image of the page, translate it >>>> to pcl, then send it to the printer where there is little >>>> processing. >>> I've 3Mb of memory. I know that is not much, for today's standards, >>> but that is almost 10 times the size of the file sent to the >>> printer... >> Let me see; an 8*10 inches page at 1200 dots per inch, that's 115.2e6 >> pixels... calculate the memory needed. > > 1200 dots per inch? I thought we were talking about a home or office > printer. 600dpi is more typical for today's laser printers. > > Also, the imageable area is typically reduced by about .25 in. on each > edge. > > Furthermore, keep in mind that these are one-bit pixels. > > So a reasonable calculation of the number of frame buffer bytes for an > 8.5 x 11 page would be: > > 8 x 10.5 x 600 x 600 / 8 = 3,780,000 bytes ~ 3.6 MB > > > Randall Schulz You forget the entire sheet is treated as a complete image. Another thing, you forget it is not black and white rather a grey therefore there are more than a single pixel associated with a dot.
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