Digital BW, The Print

Peter,

>... problem with prints being too light after changing the
> gray ("color") cartridge...
>... new cartridge with a batch number one greater than
> the problem cart. ... but initial prints look the same as 
those from the "too light" cart they replaced...


> I had just printed this picture with the old cart, 
>and it was one of the best B&W prints I'd ever made. 
> All the subtle tone in the young woman's face was 
> in the print, beautifully.

>http://users.2alpha.com/~pklein/currentpics/80280012ShallWeDance.htm

Nice shot.

>Then I changed carts, and the new prints show almost no tone 
>in her cheek, with the whole print lightened a bit overall.

>Any suggestions?

Check the nozzles, of course.  If the cart is too far off, sending it back
to MIS may be appropriate.  It would be nice if there was an obvious
difference from the test print at
http://home1.gte.net/res09aij/Test-files.htm 


> Maybe add the color controls in the 1280 driver and 
>tweak the sliders (which?) until things match the old prints?

If you are using color controls now, that might help.  If you are using the
curves workflow, the color controls will throw the system way off, including
making it considerably lighter.  I would use a curves adjustment layer in
Photoshop to compensate for the problem.  

>... I've relied on MIS for a consistent 
>product. Between their ink and your curves, I've had consistency for 
>two years, and now, things are different.

Hopefully the new QC equipment and mixing procedures will help.

Paul
www.PaulRoark.com