Digital BW, The Print

On 3/6/03 11:12 AM, "Paul Roark" <paul.roark@...> wrote:

>> IP5's success with the 2200 is attributed to their adding color
>> to smooth out the highlights.  The key, is that unlike the Epson
>> driver they don't add yellow...this is the key to the metamerism.
> 
> I'm not sure I agree that there is no yellow in there.  I don't see the
> dots, but with a 1600 dpi scan, the eyedropper at 1 pixel does pick up
> yellow.  I'm not sure, however, that if restricted to the highlights the
> yellow would cause enough metamerism to matter.

There is no yellow according to the programmer who wrote the tint picker.
Given that I believe that IP actually uses one of Epson's dithers...the
absence of yellow must be why IP is coarser than the epson driver.
 
>>  Can't wait to try it with Ink Jet Control...
> 
> A RIP is also going to be the way to go for the dual-K (Photo and Matte
> black) systems that avoid the need to switch the inks.  The 7500 with that
> system worked but the dither and dots were not acceptable.

Not sure I understand what you mean here.  Do you mean that the epson driver
was unacceptable here?  Most of the RIPs tend to use Epson's dither's
now...does this mean that the 7500 will not be acceptable...period?  I've
been getting pretty nice prints out of the 7000 using both IP and Ink Jet
Control.  Now admittedly a 1280 print is better...but it is in the same
league.

> I might see if MIS can loan me a 1280 after the new inkset is finished and
> out.  There seems to be too much trouble with the curves that are out there
> for that printer.  I've never had one, and working through the mail or using
> a scanner is just not very satisfactory.  Given the popularity of the
> printer, I'd like to see if I can write a set of curves that is up to what
> the 1270 and 1290 can do -- which is really terrific.
> 
I have both a 1270 and 1280 that are up for grabs...just say the word and
I'm sure I could get one to you. One or the other of them will be used with
your new system.  My understanding is that the 1280 is the better machine,
however, it is really slow with the epson driver at 2880 mode.  I don't
think it is variable dot like the 2200...so you probably are better off
using it at 2880 for the best quality prints.

Robert