Digital BW, The Print

On Apr 7, 2004, wifflebomb wrote:

> I have developed a BO workflow that looks great on EEM.  I use an
> Epson 2200 and the standard inks (hate the Eboni).
>
> I find PhotoRag significantly more beautiful than EEM, but using BO,
> I get a streaking problem: especially in the darker areas, there are
> repeating strips of lighter density going in the same direction as
> the print heads.  This is not a clogged-head problem-- the streaks
> are wider and more vague than you'd see in that situation.  It looks
> as if you took a 1/2 inch-wide eraser and lightly drew it across the
> page again and again, but with varying force each time.
>
> I've tried using different profiles, etc. but always the streaking on
> PR.  When I do full-color BW there is no streaking on PR, and when I
> use EEM the BO approach works fine.  Anyone else seen this and found
> a solution?  Ideally I would like to do all my BO printing on PR.
> Thanks.
>

I ran across some streaks very similar to what you describe a few 
months back with my 2200 while printing 80 calendars on InkJetArt's 
DuoBrite Matte in black only mode. Drove me nuts for a few hours. In my 
quest for printing speed (hey that project was 1,280 11x17 passes 
through the printer) I had checked "High Speed"  Printer Settings at 
1440 dpi. Interestingly, I was getting away with it until about 3/4 of 
the way through the project. After numerous head cleanings and a few 
head alignment procedures, I unchecked "High Speed" and the problem 
disappeared.

That may, or may not be the culprit in your case, but it was in mine.

David