Digital BW, The Print

Thanks, Paul and Llyod.  I will try the 1290 driver. It may be a 
while, as my workplace is nuts right now.  If anyone else tries it, 
please post to the group.  It it works, an alternate driver could 
make the 1280 as viable as the other "preferred printers" for quad 
and hextone B&W.

--Peter Klein
Seattle, WA

--- In DigitalBlackandWhiteThePrint@y..., "Lloyd O'Daniel" 
<lodaniel@b...> wrote:
> FWIW, I have successfully used the 2000P driver to run a 1200 using
> Gen4. So, the 1270/1290 driver on a 1280 should be no problem.
> 
> Lloyd
> 
> 
> -----Original Message-----
> From: Paul Roark [mailto:paul.roark@v...] 
> Sent: Tuesday, December 03, 2002 9:47 PM
> To: DigitalB&WPrint
> Subject: [Digital BW] Epson 1280 (was VM quad or hex?)
> 
> 
> Peter,
> 
> You wrote:
> 
> >I have a 1280, and I've seen this "bump."  Its a place between the 
dark
> 
> >tones and midtones where a small change of tonality on the screen 
> >causes an abrupt change in the print.  ...
> >  Which curves did you say were the least problematical?
> 
> The "warm" curve is the most problematic.  The problem is that, 
unlike
> many/most of the drivers, we can't hold the toner curve (magenta ink
> spot, green curve in the hextones) up to the top (meaning the toner 
ink
> is not flowing at all) and then drop the curve very steeply only 
fairly
> far into the shadow tones.  The 1280 PC (uncertain about Mac) driver
> appears to have problems with the steepness of green curve that is
> needed to do this.  It is most happy with mildly-sloped curves.
> 
> So, the best curves for the 1280 PC are those in the more neutral 
range.
> 
> >I'm wondering if we might be able to use the 1270 driver on the 
1280?
> 
> It might be worth trying that or the 1290 driver.  Both of these
> supported very steep curves without much of a problem at all.
> 
> I think the 1290 is the best printer I've used.  I think most 
consider
> it mechanically equal to the 1280 (except a voltage/power-supply
> difference), but it appears to have a different driver.  With the 
1290
> warm curve the green is held to 255 (no toner) until the 
last/darkest
> quarter tone, where it then dives to the black corner (0,0).  Being 
able
> to write curves this radical without glitches in the image is really
> nice.
> 
> 
> Paul
> http://www.PaulRoark.com