Thanks for the replies.

I'm no expert on this topic, but from what I've read color control is equal for pcl and postscript. One of the features of the printer is that it has a colorimeter built in and that serves the purpose of aiding consistent and accurate results.

This source provides a partial explanation of the difference between PCL and postscript:

http://h10025.www1.hp.com/ewfrf/wc/document?docname=bpo00141&lc=en&cc=dk&dlc=d&product=61497

A key distinction is “Some graphics may not print as well as a PCL image as they do as a PostScript image.” But I couldn’t find any examples.

Some further reading has pinned down the difference! I think. Accordingly when you mix text and other graphics, with PCL the text will be jagged. The solutions are 1) rasterize the text or 2) use Postscript.

I've also heard arguments on both sides of the postscript is faster debate. Some say that the image files are much larger than a PCL file and others say that they process faster. Perhaps both are true?

Also on the topic of color accuracy I read of an issue called “metamerism.” Accordingly this is a problem mostly existing on technology more than about 3 years old. Has anyone encountered it?

There was a steal yesterday on a Z6100 60” printer on ebay. It was new in it’s shipping box and going for less than half retail. I found out that the ink cartridges were $2400 and that gave me pause. The printer is the state of the art in its class and would be excellent for production, however. Of course it is about 8’ by 4’ and finding a place to put it would be difficult.