Thanks for the information, Terry.  The PP help file I'm refering to is: http://www.ddisoftware.com/prism/help/driver.htm where Mike says:

In an email from about two years ago, he said:

For the most part, I was profiling glossy papers, albeit with third party inks.  So you use NCA with the regular target for glossy papers with good results on the R800?  Do you get usable ranges closer to 0-255 or 50-255?  

Perhaps the problem is due to the Epson scanning software.  I'll try again using Vuescan and I'll check if I can do multi-sampling.  Could you post the settings of the Color tab as well?  Thanks!

Gunars

The PP help files list Color Controls with Gamma 1.8 as the first choice and NCA as the second choice for Epson printers in general.  However, Mike at one point wrote to say that this was for "older" Epsons and that the R1800 should profile ok in NCA mode with the normal target, not the bright one.  When I try this, I get a fairly dark target and usable ranges of: 38-255, 51-255, 51-255.  With Color Controls, I get 0-255, 0-255, 0-255.

I see that a number of folks here also use PP with an R1800.  Can you please tell me what settings you're using when creating profiles?  If Color Controls, do you use Gamma 1.8 or 2.2?

I've been scanning the targets with an Epson 3170 and its own software driver, but I wanted to try Vuescan (I have the full version).  Are the Vuescan settings listed in the Prism help still appropriate for the current versions of Vuescan?

Thanks.

If instead, you were talking about the tubes slapping against the top cover, I usually just leave the cover up if that's a problem. 

Ink Republic's CIS for the R1800 comes with a small piece of foam with a piece of heavy-duty tape that you attach to the left side of the housing.  This helps to absorb the slap of the tubes against the housing.  Take a look at:

http://www.inkrepublic.com/ProductImages/showimage.asp?image=/Testimonials/49.jpg
http://www.inkrepublic.com/ProductImages/showimage.asp?image=/Testimonials/52.jpg

Malwarebytes had a similar problem today.  All of a sudden, a scan showed 140 infected files marked Trojan.Downloader.  They quickly replaced the problem database and now all is well.  It's odd that both happened around the same time though.

Unless I misunderstood, the suggestion was to leave the borderless item checked in the print driver setup, but disable the overspray (Page Formatting -> Borderless Overspray/Expansion -> Disable Overspray and Size Expansion).  This should give you the complete image without cutting off the edge, but possibly may leave a sliver of white since the paper alignment is sometimes imprecise.