Digital BW, The Print

Hi,
I finally got my R1800 with Eboni 6 ink setup. Though the ink is from someone who had an excess of ink bought from MIS last year. Which I have now acquired. I did a QTR print calibration of all the inks.
Now what has suprised me is that some of the ink is not all black? Well NOT different shades of black?
My 
MK (EBK) is infact black!
Cyan (Eb6C) is a dark cyan
Magenta (Eb6LC) is a light cyan
Yellow (EB6Y) is a dark brown
Red or Light Cyan (Eb6LM) is a greyish very light brown
Blue or Light Magenta (Eb6M) is a black

I'm just wondering if I got some dud inks?

The QTR curving looks like a can of worms! I do have a Colovision Printfixpro spectrometer, and each inks do not seem to be sequential from ink to ink?
Perhaps I need to figure out a limit on each ink to make them sequential? 
Has anyone had any success in utilizing all 6 inks in one print?
Thanks
Jag24x

Just thinking about the whole thing now, perhaps the Eboni ink is spilt in two different systems? One for Warm printing such as the browns in the inks and one for Cool prints the Cyan ink. 
If that is the case then it would make a whole LOT MORE SENSE to me, and that what I have here is not what I need. I should go down the track of finding all 6 inks of blackness of different dilutions! :)
Or I could be wrong about this all and that the Eboni inks I do have ARE NOT Eboni inks and something totally different! :|


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "jag24x" <jag24x@...> wrote:

>
> Hi,
> I finally got my R1800 with Eboni 6 ink setup. Though the ink is from someone who had an excess of ink bought from MIS last year. Which I have now acquired. I did a QTR print calibration of all the inks.
> Now what has suprised me is that some of the ink is not all black? Well NOT different shades of black?
> My 
> MK (EBK) is infact black!
> Cyan (Eb6C) is a dark cyan
> Magenta (Eb6LC) is a light cyan
> Yellow (EB6Y) is a dark brown
> Red or Light Cyan (Eb6LM) is a greyish very light brown
> Blue or Light Magenta (Eb6M) is a black
> 
> I'm just wondering if I got some dud inks?
> 
> The QTR curving looks like a can of worms! I do have a Colovision Printfixpro spectrometer, and each inks do not seem to be sequential from ink to ink?
> Perhaps I need to figure out a limit on each ink to make them sequential? 
> Has anyone had any success in utilizing all 6 inks in one print?
> Thanks
> Jag24x
>

It seems that rather than an Eboni 6 inkset you have one of the MIS UT
inksets.  Have you checked the cartridge/bottle codes against those on the
MIS website?  That would help you identify the inkset and then find the
right set of curves to make it work. You are right about the use of the inks
for waem and cool prints.

David Whistance

  -----Original Message-----
  From: DigitalBlackandWhiteThePrint@yahoogroups.com
[mailto:DigitalBlackandWhiteThePrint@yahoogroups.com]On Behalf Of jag24x
  Sent: 20 May 2009 16:48
  To: DigitalBlackandWhiteThePrint@yahoogroups.com
  Subject: [Digital BW] Re: Eboni 6 INK color?





  Just thinking about the whole thing now, perhaps the Eboni ink is spilt in
two different systems? One for Warm printing such as the browns in the inks
and one for Cool prints the Cyan ink.
  If that is the case then it would make a whole LOT MORE SENSE to me, and
that what I have here is not what I need. I should go down the track of
finding all 6 inks of blackness of different dilutions! :)
  Or I could be wrong about this all and that the Eboni inks I do have ARE
NOT Eboni inks and something totally different! :|

  --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "jag24x" <jag24x@...>
wrote:
  >
  > Hi,
  > I finally got my R1800 with Eboni 6 ink setup. Though the ink is from
someone who had an excess of ink bought from MIS last year. Which I have now
acquired. I did a QTR print calibration of all the inks.
  > Now what has suprised me is that some of the ink is not all black? Well
NOT different shades of black?
  > My
  > MK (EBK) is infact black!
  > Cyan (Eb6C) is a dark cyan
  > Magenta (Eb6LC) is a light cyan
  > Yellow (EB6Y) is a dark brown
  > Red or Light Cyan (Eb6LM) is a greyish very light brown
  > Blue or Light Magenta (Eb6M) is a black
  >
  > I'm just wondering if I got some dud inks?
  >
  > The QTR curving looks like a can of worms! I do have a Colovision
Printfixpro spectrometer, and each inks do not seem to be sequential from
ink to ink?
  > Perhaps I need to figure out a limit on each ink to make them
sequential?
  > Has anyone had any success in utilizing all 6 inks in one print?
  > Thanks
  > Jag24x
  >



  


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

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "jag24x" <jag24x@...> wrote:
>
> Hi,
> I finally got my R1800 with Eboni 6 ink setup. Though the ink is from someone who had an excess of ink bought from MIS last year. Which I have now acquired. I did a QTR print calibration of all the inks.
> Now what has suprised me is that some of the ink is not all black? Well NOT different shades of black?
> My 
> MK (EBK) is infact black!
> Cyan (Eb6C) is a dark cyan
> Magenta (Eb6LC) is a light cyan
> Yellow (EB6Y) is a dark brown
> Red or Light Cyan (Eb6LM) is a greyish very light brown
> Blue or Light Magenta (Eb6M) is a black
> 
> I'm just wondering if I got some dud inks?
> 
>
I bought a set of Eboni 6 last year that was the same way - it looked more like one of the UT inksets, with inks that are cool and warm with a black base. I sent it back. I finally did get a consistent set of Eb6 inks. I think they had had a bad batch.

> > I finally got my R1800 with Eboni 6 ink setup. Though the 
> > ink is from someone who had an excess of ink bought from 
> > MIS last year. ...
> > Now what has suprised me is that some of the ink is not 
> > all black? ... My 
> > MK (EBK) is infact black!
> > Cyan (Eb6C) is a dark cyan
> > Magenta (Eb6LC) is a light cyan
> > Yellow (EB6Y) is a dark brown
> > Red or Light Cyan (Eb6LM) is a greyish very light brown
> > Blue or Light Magenta (Eb6M) is a black
> > 
> > I'm just wondering if I got some dud inks?


> I bought a set of Eboni 6 last year that was the same way ...
> I sent it back. I finally did get a consistent set of Eb6 inks.
> I think they had had a bad batch.

I had someone send me a calibration print of an inkset that looked this way about a year ago and initially concluded it must have been a mistake at MIS.  I let them know about it.  Later, however, I noticed my 1800 Eboni-6 inks taking on weird colors.  I traced the problem to the carts and the deterioration of the sponges.  

The problems noted above could also have come from residual color in the printer or polluted inks, either due to some mix-up at MIS or pollution from something like sponge deterioration.

I mix my own Eboni-6 (I still have some of the base left over from my initial search for a suitable base for Eboni) and Carbon-6, and except for the sponged carts and the deterioration of the sponges in them, I've never seen a tone shift with either clear base.  No printer with truly spongeless carts and Eboni/Carbon-6 that I've mixed has ever shown any tone other than the expected medium warm (with the warmth peaking at the LK density, being the least at the 100% and second least at 2%).

So, I can't say where the colors are coming from, but it's not an inherent or intentional characteristic of dilute Eboni or Eboni-6.

Note that I have been told that some ink suppliers -- even at the wholesale level -- use the same equipment to process different inks.  There can be pollution of one with with another due to poor cleaning of the equipment between ink batch processing.  Then again all color inks are also subject to slight variations.  That's one reason custom profiling is needed for precise control.  

Paul
www.PaulRoark.com