When printing PDF documents, black text prints as a very dark gray, so it is not as sharp as it should be. This has occurred with the last three laser printers I have owned -- a HP4, a Brother HL-5050, and now a Lexmark E260dn. Problem has occurred with XP, Vista and 7. I was hoping beyond hope that Reader X would solve the problem -- no such luck!
I have seen the problem with PDFs produced from InDesign and Quark, and probably other programs. Printing the document from InDesign prints black as 100% -- make a PDF and black prints as very dark gray.
I have found a solution -- the problem only occurrs when printing to printers through PCL drivers. If I use the Postscript driver, black prints black. But it shouldn't happen -- not all lasers have the ability to print to a PS driver. I recently had a rush job of 1,000, 16-page newsletters run off on a brand new Canon Imagerunner at a copy shop. The newsletters looked bad with the gray, fuzzy text. I've found a PS driver for their machine that will probably fix the problem if I install it for them -- but it shouldn't happen!!!
I've tried checking/unchecking all the "Advanced" options in the Print window with no luck.
Any fix, Adobe?