Digital BW, The Print

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

N

o o
ne has replied yet, so once again I would like to ask 
if anyon
e
 
has experienced any kind of slight out of allig
nment prob
le
m 
with a 1280 using M
IS 
pig
s.
Along one border of the print a pencil thin line of 
mage
nta 
is 
visible, and things in the print seem a bi
t off
 kilt
er.
All of the nozzle checks, cleaning, and alli
gnment
 pro
gr
ams 

seem o
kay.
This isn;t visible ith the oem carts.  Could the
 density
 of the 
pigs 
somehow be 
causing t
his to ha
ppe
Is this a case where I should send the pr
inter back
 t
o
 epson 

fo
r
 
adjus
t
me
n
t??

Th
a
nk
David

David,

Usually when I hear that someone sees magenta with the MIS VM inkset (and I
don't know which inkset you are using), it is left-over OEM ink in the head.
The heads have blind alleys in them that do not clean out completely at
first.  The magenta position seems to be the one that causes the most
problems.  So, it could be some artifact from the ink changing if that is
what you recently did.

(I have no knowledge of 1280s or their alignment.)

Paul

  -----Original Message-----
  From: daschkenas@... [mailto:daschkenas@...]
  Sent: Sunday, November 04, 2001 3:07 PM
  To: DigitalBlackandWhiteThePrint@yahoogroups.com
  Subject: [Digital BW] possible allignment problem


  N

  o o
  ne has replied yet, so once again I would like to ask
  if anyon
  e

  has experienced any kind of slight out of allig
  nment prob
  le
  m
  with a 1280 using M
  IS
  pig
  s.
  Along one border of the print a pencil thin line of
  mage
  nta
  is
  visible, and things in the print seem a bi
  t off
  kilt
  er.
  All of the nozzle checks, cleaning, and alli
  gnment
  pro
  gr
  ams

  seem o
  kay.
  This isn;t visible ith the oem carts.  Could the
  density
  of the
  pigs
  somehow be
  causing t
  his to ha
  ppe
  Is this a case where I should send the pr
  inter back
  t
  o
  epson

  fo
  r

  adjus
  t
  me
  n
  t??

  Th
  a
  nk
  David


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[Non-text portions of this message have been removed]

David-

Was this "misalignment intentional?

on 11/4/01 6:06 PM, daschkenas@... wrote:

N

o o
ne has replied yet, so once again I would like to ask
if anyon
e

has experienced any kind of slight out of allig
nment prob
le
m 
etc. etc.



[Non-text portions of this message have been removed]

-Misallignment problem with MIS quad Black ink:

After converting an optimized Grayscale to RGB and 16 bits, I 
use "curves" to laod my selected profile. Then under mode, I change 
back to 8 bits and print.

Black is printing slightly low, leaving a 0.001 to 0.002 inch ground 
crack (showing paper base white). The misallignment is "high\low", 
not the left\right allignment correctable by the Epson 3000 utility.

Input invited!

Ken

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