Digital BW, The Print

David,

this sounds like a problem some people experienced with Cone piggy inks - it
was suggested that the viscosity of the ink was too high so the ink droplets
were actually taking longer to come out of the nozzle than they 'ought' to
have been. Kind of like the difference between pouring milk off a spoon
compared to honey or syrup.

I'm afraid I don't think there was a fix - but as I have not heard this
issue reported with other MIS inks, perhaps it was down to a bad batch????
Or, perhaps you need to do a full alignment check... which on the 1280 are
almost certainly (based on the assessment of others) to do with both
physical alignment of the head on the page, and a timing alignment to change
the relative timing of the pulses of the jets firing.

To confirm if this is a 'viscosity' / alignment problem you should see a
similar line at the start of the 'shape' that has no magenta in it at all...

Nij


> -----Original Message-----
> From: daschkenas@... [mailto:daschkenas@...]
> Sent: 04 November 2001 04:41
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: [Digital BW] possible allignment problem
>
>
> Well, I think that profiles made for me by CDTobie, solved my
> problems of getting a pretty neutral b&w print using MIS color pigs.
> I highly reccommend him to anyone who has considered getting
> professional profiles done.
> A new problem, I think, has emerged, and I wonder if anyone else is
> experiencing these problems.
> I'm using a epson 1280, with a NMC CIS system, with MIS pigs.  It
> appears that images are ever so slightly out of register.  Upon
> extremely close examination, one edge of the print shows an extremely
> thin line of magenta.  It is about the width of a pencil line, only
> on one of the prints borders.  In the image itself, when a figure is
> surounded by sky, the edges of the figure appear to be out of
> register, giving a bit of a pixilated look.  It is a very thin line
> around the figure, but if you really eyeball it or use a loupe, it is
> definitely visible.
> This was never apparent when printing with OEM dye epson carts.  I'm
> using the same paper, either LPM or Sommerset Enhanced Velvet.
> Could this be happening because I'm using pigs in a machine that was
> made for dyes??  Or is this machine slightly out of calibration, and
> need to be returned to epson.  I can remove the CIS and install the
> original carts, but I never experienced this problem with the
> original carts, all borders and allignm,ent of images seemed to be
> perfect.
> I ran the head cleaning, allignment, nozzle checks, etc, and
> everything appears fine in these tests, but the problem persists.
> Has anyone else using this same setup, experienced anything like this?
> The printer is only about 4 months old.
> Thanks
> David