We went through all my settings and verified that everything was correct but prints were still coming out horribly dark with all colour management switched off. Eventually we tried a print through Apple's Preview and that was spot on with all colour management turned off.
I have now installed CS3 and with the same settings the print outs are significantly closer to the original chart, much like Preview. Despite turning off all colour management there appears to be an issue between the print engine in CS4 and the Epson driver with OS X which is causing very dark prints. For whatever reason the results are massively out in CS4 with the R1800. Perhaps other printers are also effected.
I wrote and told nativedigital who did the profiles purely for the sake of letting them know what I have discovered and to their credit, they have said that if I send them new test charts they will do the profiles again for free. This is a problem though that simply shouldn't exist.
Have you set your Printer as your Default Printer?
Check out this thread:
<http://www.adobeforums.com/webx/.59b837a5>
CS3 works and now it looks like I will have to go back to CS3 for printing even when the profile is successfully done but I really think its wrong when we are left like beta testers to discover these problems. Luckily I have CS3 here, so I am able to find this work around for the time being but somebody who has just purchased CS4 and doesn't have any earlier versions would be well and truly stuck.
<http://www.hiddenelements.com/blog/2007/01/calibrating-my-home-printer.html>
Just an idea!
I agree with what Richard is saying in principal but I gave up on lab prints about 8 years ago. When they moved over to digital processes like the Lambda, suddenly everything seemed so flat and muddy with little detail, which was nothing like the original images. I recall one time looking at an image I had shot with the Hasselblad in South Africa on a perfect sunny day and wondering why it all looked so miserable and lacking in detail. I ran some prints through the Epson 1290 and suddenly I had vibrant rich colours and amazing detail. Ever since then I have printed everything myself.
> Perhaps Apple spent too much time on their iPods.
Eh?
Yesterday I re-installed the driver for my SX200 and made that the default
printer.
That does seem to be the answer:
Remove the old Driver; Reinstall the newest available Driver for your printer; and make it the Default Printer
But at least you got it working …
:)