Ok, test made. The good news is that I actually got Eboni black (you can't
go wrong: it smells more or less like paint, while my old FS black has the
pungent smell of solvent). The bad news is that yesterday evening I
experienced my first clog.
Nothing too serious, mind you: I switched the printer on, an after maybe one
hour I started printing, got severe banding in a dark area, and verified
that about 20% of the black nozzles weren't firing (and two in the cyan, as
well). After a couple of nozzle cleans, I switched the printer off and let
it rest for an hour, and after that all was fine, and I printed happily the
rest of the evening.
What encourages me is that it seems like a "normal" clog, and the fact that
it involved, although to a lesser degree, also the cyan gray, which is an
old ink, makes me think that it may just be that my 1160 is aging, or that
the new environment (I moved last winter) is more clog-prone. What makes me
a bit nervous, OTOH, is that I never experienced clogs in my previous 2
years of printing...
Alessandro
-----Original Message-----
From: Alessandro Pardi [mailto:alessandro.pardi@...]
Sent: martedì 15 aprile 2003 17:11
To: 'DigitalBlackandWhiteThePrint@yahoogroups.com'
Subject: RE: [Digital BW] RE: UltraTones - what to do?
Ah! Then it can well be that I got a regular good ol' FS black ink bottle.
I'll make the nose test and report (I still have a half bottle from a
previous FS set to compare).
Alessandro
-----Original Message-----
From: John/Julie Gittins [mailto:jgittins2@...]
Sent: martedì 15 aprile 2003 16:16
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: Re: [Digital BW] RE: UltraTones - what to do?
Alessandro,
Good to hear that that things cleared up quickly.
I'm about to replace an FS/FSN black cart with one I ordered from MIS
after the date that they announced a switchover of all their pigment blacks
to Eboni. When I called to ask if the cart I received was really Eboni (it's
labelled "FSN"), they said they didn't know because the old inks are
being replaced piecemeal, and that the only way to tell is by the smell
of the ink in the cart. I'm guessing Eboni smells different than FS/FSN-K
because it doesn't have the strong-smelling co-solvent. And I'm hoping
for no smell plus no-gap nozzle-checks when I put the mystery K cart.
John
---- Original Message -----
From: Alessandro Pardi
To: 'DigitalBlackandWhiteThePrint@yahoogroups.com'
Sent: Tuesday, April 15, 2003 4:15 AM
Subject: RE: [Digital BW] RE: UltraTones - what to do?
John,
switching from OEM to Eboni carts is what I just did on my 1160 (see my
latest post), and the reason I put the OEM inks is was exactly clogging.
Just after switching carts I ran a nozzle check and the black was really
horrible (about 50% missing), whereas the "grays" still were mostly C, M
and
Y, but a single nozzle clean made the printer ready. Four more A4 prints
yesterday evening, and all is (still) well...
Alessandro
-----Original Message-----
From: John/Julie Gittins [mailto:jgittins2@...]
Sent: martedì 15 aprile 2003 4:55
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: [Digital BW] RE: UltraTones - what to do?
On 04/14/2003, Paul Roark wrote:
>What MIS has found is that if Eboni black (a very "high load" pigment
ink)
>is mixed with dye ink, the viscosity goes way up -- it will not print. I
>think if there was some Gen 4 Enhanced black (25% dye) in a CIS/CFS
before
>the Eboni was added, the system would clog.
>
>So, when switching to Ultra Tone B&W ink with Eboni black, one must use a
>new CIS/CFS cartridge. In large format printers that have had any dye in
>the black, the system must be flushed.
Paul,
That mixing Eboni-K with some dye ink can likely result in clogs
seems a very important finding. Do you feel MIS has checked out
this connection sufficiently so that we can reliably expect large
viscosty increases whenever these 2 kinds of ink are mixed? For
instance, if someone using Gen4 enhanced-K in pre-filled carts
switched over to Eboni in pre-filled carts (just as they would
have when starting up with MIS FS-K after having used EPS OEM-K
in their printer), would the extra-viscosity effect be likely to
occur?
If the answer is "Yes" (and, hopefully, it isn't), then the
clog-clearing trick of sticking in EPS OEM dye carts might not work
with Eboni; it might, indeed, make things worse. (Would running
purge cycles with cleaning carts, then, be the only way to keep
Eboni-K and dyes separate?)
<snip>
Regards,
John
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RE: [Digital BW] RE: UltraTones - what to do?
2003-04-16 by Alessandro Pardi