Digital BW, The Print

Hello Michel,

>I am new on this forum so I don't understand the many 
>abbreviations on the post. For example what means BO or 
>QTR  (Quad tone rip ?) ?

Yes, you are correct on the QTR.  It is a shareware RIP ($50) for Mac
or PC.  It blends the UC inks to achieve neutral (or toned) BW.

BO means "Black Only", the technique of using black only ink.  There
is info about it on my web site (link below).  

>I have a 4000 pro and cannot afford to dedicate it to B&W, so 
>I am using Ultrachrome inks, on H.William Tuner I have some 
>very nice monochrome result but I guess it could be better. 

The problem with UC inks and the Epson driver is prints always have
some degree of metamerism.  Using a RIP is the only way to get truly
neutral metamerism-free BW prints with color inks.  Since you want to
print color as well as BW, your choices are limited to BO or one of the
RIPs.  QTR is excellent and also the least expensive.

Regards,
Clayton


Info on black and white digital printing at    
http://www.cjcom.net/digiprnarts.htm