QTR-Quadtone RIP

Michael,

I may have my math wrong, but as I understand X900 are 10 channel printers, not 11 (PK and MK are switched on-demand). So the only way to attain dual K6 is to have two shared channels. Of course you don't get to add GLOP with this setup.

I am often tempted to go with the 24 inch model, but cannot ever justify it. I hardly ever need a print wider than 17 inches. This is only a hobby, and lately I can not get much dedicated time to play. I have a local pro who gives me free reign on his 7880s and lately Canon 8300 24 inch behemoth. I have yet to take him up on the offer. The 4XXX printers allow for printing from the tray, which works out well for the print exchanges. But if I ever find a well functioning, used 7XXX locally (and cheap), I might consider getting it.

Would love to see you back in the print exchanges.

Shilesh

--- In QuadtoneRIP@yahoogroups.com, Michael King <drmrking@...> wrote:
>
> Hi Shilesh,
> 
> As I mentioned above you can get a triple K6 on an x900 11 channels, but no
> Glop.
> I don't think you have to worry about banding with the 7900 - assuming you
> have good profile, better to use the channels for alternative ink blends.
> 
> Look forward to seeing what you do with one. May as well go for a 7900, at
> least here in UK they are only 25% more expensive than 4900.
> 
> Cheers,
> 
> Mike
> 
> 
> On 10 March 2011 16:03, shileshjani <shileshjani@...> wrote:
> 
> >
> >
> > Michael,
> >
> > The X900 printers will have 10 channels available at a time: K (MK or PK),
> > LK, LLK,C, LC, M, LM, Y, O, and G. If we take one channel for GLOP, we are
> > left with K + 4 gray dilutions. Essentially, a dual K5 system is possible.
> >
> > Of course, some dilutions can be shared. In which case a hybrid dual K6 can
> > be configured. I can imagine the either darkest gray to be shared, or even
> > the lightest gray. Now the possibilities open up quite a bit.
> >
> > Personally, I would opt for dual quad (K4) which are the same warm ink
> > backbone. This would help with smoothness (similar to Roark's multi channel
> > BO), and reduced likelihood of banding artifacts, and add high gamut color
> > toners in other positions. But that is my opinion only. I know some find
> > high gamut inks an anathema.
> >
> > Now I need to butter-up my wife so as to buy the 4900. Good times!
> >
> > Shilesh
> >
> >
> > --- In QuadtoneRIP@yahoogroups.com, Michael King <drmrking@> wrote:
> > >
> > > Hi Roy,
> > >
> > > Great news on the x900 support.
> > >
> > > In terms of more inks, I agree people probably don't want more than 7
> > inks
> > > at one time, but I sure would like to use the other ink channels for
> > > supporting multiple ink sets.
> > >
> > > Is it just a matter of supporting 10 bit calibration image rather than 8
> > > bit?
> > > Or is your ink channel handling after 16 >8 bit conversion? Anyway I
> > think
> > > its important we can address more than 8 inks, just not at the same time
> > > :) As a work around maybe you can support any 8 inks at the same time and
> > > have some way to define which 8 ?
> > >
> > > I presume we can just do a PK/MK switch with the Epson driver - correct?
> > >
> > > So we now can have 11 channels available in the x900s - wonderful
> > situation.
> > > With Jon's K6 inks I can have Sepia, Split S/N, and SE all loaded at the
> > > same time. (Note: For those paying attention to the detail S2 and SE2 are
> > > effectively interchangeable - so these 3x K6 ink sets fit into 11
> > channels
> > > or 2 sets of K7).
> > >
> > > Great news, Txs Roy.
> > >
> > > Cheers,
> > >
> > > Mike
> > >
> > > On 10 March 2011 05:20, Roy Harrington <roy@> wrote:
> > >
> > > >
> > > >
> > > > I just used the 7880 driver so no I couldn't try orange and green.
> > > > Actually selecting
> > > > the inks is probably not a big problem but I do have to figure out any
> > > > issues with
> > > > more than 8 inks. For instance the inkseparation page uses 8 bits for
> > > > ink selection.
> > > > I'd probably put this off until later -- who really needs that many
> > > > inks for B&W.
> > > >
> > > > I have looked at the 4900 and is apparently all Esc/P2 so should not
> > > > be a problem
> > > > except for the 8 ink -> 10 ink issues. Haven't looked at the R3000
> > > > but I'd think
> > > > its like the R2880 except for the K ink selection.
> > > >
> > > > Roy
> > > >
> > > >
> > > > On Wed, Mar 9, 2011 at 5:59 PM, shileshjani <shileshjani@> wrote:
> > > > > That is wonderful, Roy. Did you try to control the additional ink
> > > > channels (orange and green, is it?)?
> > > > >
> > > > > I was seriously considering buying a 4880 to mothball for a few
> > years.
> > > > Earlier today, I looked up specs on the new 4900, and it too lists
> > ESC/P2 as
> > > > the printer controler. So perhaps the near future is not so bleak. The
> > R3000
> > > > also looks promising with ESC/P2 control as well.
> > > > >
> > > > > Shilesh
> > > > >
> > > > > --- In QuadtoneRIP@yahoogroups.com, Roy Harrington <roy@> wrote:
> > > > >>
> > > > >> Interesting development.
> > > > >>
> > > > >> I got a hold of a 7900 briefly so I could try the QTR driver.
> > > > >> -- the method was just to use the 7880 driver and print a
> > calibration
> > > > page --
> > > > >> Anyway printing at 2880dpi seems to work as expected, but both the
> > > > >> 1440dpi and 1440super modes printed expanded output (twice as wide
> > as
> > > > expected).
> > > > >> So the good news is we have something working, but its not
> > completely
> > > > >> compatible.
> > > > >>
> > > > >> Whether the 7890 has the same result is another question. If we can
> > > > only print
> > > > >> at 2880 I think that would be workable. These new printers are
> > faster
> > > > already.
> > > > >>
> > > > >> Roy
> > > > >>
> > > > >> On Tue, Mar 8, 2011 at 1:00 AM, Kees <ctb@> wrote:
> > > > >> > Thanks Roy,
> > > > >> >
> > > > >> > I actually ordered a 7880 in January but my dealer just told me
> > epson
> > > > germany (also delivering the netherlands) is out of stock. So I am
> > thinking
> > > > of buying the 7890, only if....
> > > > >> >
> > > > >> > Is epson actually licensing this new ESC/P3 now instead of just
> > give
> > > > it?
> > > > >> >
> > > > >> > kees
> > > > >> >
> > > > >> >
> > > > >> >
> > > > >> >
> > > > >> > --- In QuadtoneRIP@yahoogroups.com, Roy Harrington <roy@> wrote:
> > > > >> >>
> > > > >> >> I had a suspicion that they may be compatible with the old
> > drivers
> > > > and
> > > > >> >> heard others speculate it as well.
> > > > >> >>
> > > > >> >> The US user guide does not say this. So I checked the UK website
> > and
> > > > >> >> the user guide there is a totally different document. Sure enough
> > it
> > > > >> >> has this about both control codes. Its encouraging but I'd like
> > to
> > > > see it
> > > > >> >> actually working before being sure.
> > > > >> >>
> > > > >> >> Anybody have one of the new printers who can just try it?
> > > > >> >> 7890, 7900, 9890, 9900, 11880 -- any of them.
> > > > >> >>
> > > > >> >> Thanks,
> > > > >> >> Roy
> > > > >> >>
> > > > >> >> On Mon, Mar 7, 2011 at 1:15 PM, Kees <ctb@> wrote:
> > > > >> >> > addition to my earlier post:
> > > > >> >> >
> > > > >> >> > From the epson 7890/9890 specs in the user guide:
> > > > >> >> >
> > > > >> >> > Control code: ESC/P2 ESC/P3
> > > > >> >> >
> > > > >> >> > Does this mean it is backwards compatible with ESC/P2 and maybe
> > > > QTR?
> > > > >> >> >
> > > > >> >> > kees
> > > > >> >> >
> > > > >> >> >
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