lalonde@tundra.misemi ( iccad) (07/27/89)
I have a postscript program that produces different output on two different postscript laser printers (an APPLEWRITER(SUN) and a dataproducts LZR2665). The image originated as a SUN bitmap, was imported into FRAMEMAKER and was printed. The image comes out very faint on the Dataproducts (~$25K) printer and comes out as it should on the apple (<$5K). Does anyone have any ideas? The rest of the text on the page is not faint, only the pixel image, so I know the printer does not need to be adjusted for contrast. Any help would be appreciated. -- ====================== Terry Lalonde Usenet: ...!uunet!mitel!lalonde ======================
des@yatton.inmos.co.uk (David Shepherd) (07/31/89)
In article <848@inmos.co.uk (Terry Lalonde - iccad) writes: >I have a postscript program that produces different output on >two different postscript laser printers (an APPLEWRITER(SUN) >and a dataproducts LZR2665). The image originated as a SUN >bitmap, was imported into FRAMEMAKER and was printed. > >The image comes out very faint on the Dataproducts (~$25K) >printer and comes out as it should on the apple (<$5K). The AppleWriter is a write black printer while I expect from the problem that the Dataproducts is write white. Each printer will have its internal pixel generator for text tuned for its print engine -- hence text looks correct on both, but for bit maps you notice the difference. I don't know if anyone has a simple solution for printing bitmap images --- the software that generated the bitmap image may have parameters that can be changed to produce write white images. This is what has to be done when generating pixel maps with METAFONT for TeX fonts -- you need one set of pixel maps for write white and one for write black ;-( david shepherd INMOS ltd