This seems to me to be a compatibility issue with certain printer drivers when printing from InDesign CS4. I am printing to a Lanier 445c multipurpose color printer/copier. Since upgrading to OS X 10.6.5, not only am I unable to print landscape from InDesign CS4 to the Lanier 445c, but I am also unable to fold and staple documents, as I normally can do. Furthermore, I am unable to print colors correctly. When printing from InDesign, I normally choose the printer profile for the Lanier printer. Now when I do that, the colors print lighter, as they do when printed using the default printer profile.
I have tested this in Illustrator CS4, and the colors are printing correctly. Furthermore, I can print landscape from Illustrator. I have only tried printing letter-size documents from Illustrator, and have not tried to use the printer's finisher, so I'm not sure if these features will work in Illustrator with OS X 10.6.5.
I am able to print letter-size documents landscape from InDesign CS4 to my HP2600 laser printer. Colors are fine, too.
I offer this for what it's worth, but haven't yet found a good solution. Do these problems sound like anything any of you are experiencing?
Hoping for a fix to this soon, as it's getting to be a hassle to have to print using workarounds such as exporting InDesign documents to PDF, then placing the PDF in Illustrator to print.