Digital BW, The Print

John,

I have been using the Harrington QuadToneRIP on a Mac (OS X / Gimp Print)
with my Epson 1160 printer and "old" VM inks. Absolutely beautiful results.
The only two things that I've really noticed compared to my former
workflow--OS 9.2 and Roark curves--is the following:

1. The range of "color" using the Harrington curves is not as wide as Paul's
curves. That is, using Paul's curves one can produce very cold basically
blue prints to very warm brown (the natural warm color of the pigment inks)
prints, whereas the Harrington curves produce prints from what I'd call dead
neutral (say half way between Paul's nc curve and the next warmer curve) to
very warm brown (same as Paul's warmest curve.)

2. Prints take about twice as long to print. I'm sure this has everything to
do with the Gimp drivers and nothing to do with the QuadToneRIP, but just
thought I'd mention it. If you think Epson printers are slow using Epson
drivers, you ain't seen nuttin' yet! Speed of printing is not an issue for
me, but certainly would be for anyone in a production (or close to it)
environment. For example, printed an A3 size quad the other day...40
minutes!

Realizing this info has nothing to do with the new VM 4.3 inks or the 7500,
but hope you find it somewhat useful.

Alan Huntley

----- Original Message -----
From: "mr_misty_44" <jharvey@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Monday, March 24, 2003 5:25 PM
Subject: [Digital BW] Harrington QuadTone RIP


> I'd love to hear some comments about this system from those who have
> been using it. Have any of you tried this system with the new VM 4.3
> ink set from MIS with a 7500 or 1160.
>
>                  John H
>
>
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--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "A. 
Huntley" <leicam6@a...> wrote:
> John,
> 
> I have been using the Harrington QuadToneRIP on a Mac (OS 
X / Gimp Print)
> with my Epson 1160 printer and "old" VM inks. Absolutely 
beautiful results.
> The only two things that I've really noticed compared to my 
former
> workflow--OS 9.2 and Roark curves--is the following:
> 
> 1. The range of "color" using the Harrington curves is not as 
wide as Paul's
> curves. That is, using Paul's curves one can produce very cold 
basically
> blue prints to very warm brown (the natural warm color of the 
pigment inks)
> prints, whereas the Harrington curves produce prints from 
what I'd call dead
> neutral (say half way between Paul's nc curve and the next 
warmer curve) to
> very warm brown (same as Paul's warmest curve.)
> 
> 2. Prints take about twice as long to print. I'm sure this has 
everything to
> do with the Gimp drivers and nothing to do with the 
QuadToneRIP, but just
> thought I'd mention it. If you think Epson printers are slow 
using Epson
> drivers, you ain't seen nuttin' yet! Speed of printing is not an 
issue for
> me, but certainly would be for anyone in a production (or close 
to it)
> environment. For example, printed an A3 size quad the other 
day...40
> minutes!
> 
> Realizing this info has nothing to do with the new VM 4.3 inks 
or the 7500,
> but hope you find it somewhat useful.
> 
> Alan Huntley
> 

Alan & John,

The range of color for the curves I did for the 1160 were just
based on what I liked for my VM-Sepia inks.  It would be quite
easy to do a couple more curves with significantly more
toner ink in them.   I'd be glad to email you some if you'd
like.

The speed of printing is totally a function of the gimp-print
drivers.   The drivers for the 1160 have 3 different modes for
1440x720 printing (Bidirectional, Unidirectional, and Highest
Quality).  I've mostly used HQ setting and it's probably the
slowest, I imagine bidirectional (the first one in the list)
would be faster.  Also there are quite a few 720x720 modes
which may give good enough results.

Since InkJet Control also uses gimp-print based drivers I
wonder if anyone using that could comment on speed of
printing there.

Roy

On Monday, March 31, 2003, at 06:46  PM, Roy Harrington wrote:
> The speed of printing is totally a function of the gimp-print
> drivers.   The drivers for the 1160 have 3 different modes for
> 1440x720 printing (Bidirectional, Unidirectional, and Highest
> Quality).  I've mostly used HQ setting and it's probably the
> slowest, I imagine bidirectional (the first one in the list)
> would be faster.  Also there are quite a few 720x720 modes
> which may give good enough results.
>
> Since InkJet Control also uses gimp-print based drivers I
> wonder if anyone using that could comment on speed of
> printing there.
>
> Roy

Roy,

OPM seems to print faster (single pass mode) than Gimp-print at Highest 
Quality, but I haven't done any timings.  OPM only offers two printing 
resolution options:  Single Pass and Multi Pass.

Carl

Hi Roy,

Thanks for the info. If you have a couple of curves already made utilizing
more toner I would really appreciate receiving them. I know that you include
an intro to building your own curves, but I am not a technician and I really
do not understand the concept. I think I understand, at the highest levels,
the theory behind curve shape and transitioning the tones, etc., but I'm
sure that I would mess things up if I tried to build my own. If I could post
a "wish list", what I'd like to see is a couple of curves producing cooler
results than your Sepia 3 curve. This curve, on my 1160, seems to produce
what looks like dead neutral to my eye. Expanding the range to a couple of
curves generating cooler (bluer) results--same "color" spacing as your other
curves--would be great for printing snowscapes or any image where a cool
tonality is desired. I've always found Paul's neutral-cool curve to be about
a cold as I would go and, actually, that one is a little too cold. As with
everyone doing quadtone printing this is all a matter of personal taste...I
believe Jerry Olsen uses Paul's cooler curves all the time and loves 'em!

I know that print speed is related to the Gimp drivers. Sorry if I intimated
in any way that the QuadToneRIP was responsible. It's not! I just wanted to
mention to John that speed might be a consideration if he went with the
Gimp/QuadToneRIP combo.

Alan Huntley

----- Original Message -----

From: "Roy Harrington" <roy@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Monday, March 31, 2003 4:46 PM
Subject: [Digital BW] Re: Harrington QuadTone RIP


> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "A.
> Huntley" <leicam6@a...> wrote:
> > John,
> >
> > I have been using the Harrington QuadToneRIP on a Mac (OS
> X / Gimp Print)
> > with my Epson 1160 printer and "old" VM inks. Absolutely
> beautiful results.
> > The only two things that I've really noticed compared to my
> former
> > workflow--OS 9.2 and Roark curves--is the following:
> >
> > 1. The range of "color" using the Harrington curves is not as
> wide as Paul's
> > curves. That is, using Paul's curves one can produce very cold
> basically
> > blue prints to very warm brown (the natural warm color of the
> pigment inks)
> > prints, whereas the Harrington curves produce prints from
> what I'd call dead
> > neutral (say half way between Paul's nc curve and the next
> warmer curve) to
> > very warm brown (same as Paul's warmest curve.)
> >
> > 2. Prints take about twice as long to print. I'm sure this has
> everything to
> > do with the Gimp drivers and nothing to do with the
> QuadToneRIP, but just
> > thought I'd mention it. If you think Epson printers are slow
> using Epson
> > drivers, you ain't seen nuttin' yet! Speed of printing is not an
> issue for
> > me, but certainly would be for anyone in a production (or close
> to it)
> > environment. For example, printed an A3 size quad the other
> day...40
> > minutes!
> >
> > Realizing this info has nothing to do with the new VM 4.3 inks
> or the 7500,
> > but hope you find it somewhat useful.
> >
> > Alan Huntley
> >
>
> Alan & John,
>
> The range of color for the curves I did for the 1160 were just
> based on what I liked for my VM-Sepia inks.  It would be quite
> easy to do a couple more curves with significantly more
> toner ink in them.   I'd be glad to email you some if you'd
> like.
>
> The speed of printing is totally a function of the gimp-print
> drivers.   The drivers for the 1160 have 3 different modes for
> 1440x720 printing (Bidirectional, Unidirectional, and Highest
> Quality).  I've mostly used HQ setting and it's probably the
> slowest, I imagine bidirectional (the first one in the list)
> would be faster.  Also there are quite a few 720x720 modes
> which may give good enough results.
>
> Since InkJet Control also uses gimp-print based drivers I
> wonder if anyone using that could comment on speed of
> printing there.
>
> Roy