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Author Topic: i1 Profiler: reading the targets  (Read 3915 times)

fighterkitekook

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i1 Profiler: reading the targets
« on: May 19, 2011, 03:59:12 am »

I just bought the i1 photo pro last week and have been a busy beaver. :)

Having watched all the videos and read the quick start guide...I still did not know how to read the patches with the spectro and the fancy ruler tray....uggh

I have read on the forums that one of the negatives of the system were all the read errors associated with the spectro and ruler. Which is what my experience was at first.

I thought I would share what I have learned so far.

Read Errors...
  are a thing of the past once you get some technique down.

Its very easy.
 I will explain and you will be an expert right away:

The first thing I noticed was that annoying beeping going on all the time!!!
 I muted my machine....BIG MISTAKE!
 
The first beep comes right after you press the spectro to start the sweep....do not move the spectro until you here the beep. It is telling you it is ready to go....start earlier and you cross that first black/white dividing line and you get:
  "I'm sorry I only read 14 patches and there was 15...."....$#@*

you get another beep when you let go of the button, telling you that it has stopped reading...time to move the tray.

Another time saver I realized after a while is that the Specrto can read in BOTH directions...there are white and black line dividing the patches I suspect it reads when you start...

Hugh time saver.

I have done 3 profiles so far...I just read 5 pages with 2016 patches in just under 13 minuets with no read errors.

the beeps sure are annoying but they serve a purpose...and the profiles are pretty sweet. ;)
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digitaldog

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Re: i1 Profiler: reading the targets
« Reply #1 on: May 19, 2011, 08:59:25 am »

It takes a bit of trail and error to get this to work smoothly, you’ll get the hang of it. Don’t turn off the sound! It helps in letting you know how to move the unit. Basically you place the Spectrophotometer over the end of the ruler on white paper. Click the button and wait to hear the beep. Then smoothly move the Spectrophotometer over the ruler to the opposite side till you hit white paper. Then release the button and listen for the conformation beep. If the movement of the Spectrophotometer is jerky, if it gets caught a bit on the paper and stops, you’ll get an error tone. Yes, you can move in either direction which can also help you in a smooth back and forth tacking of the Spectrophotometer over the ruler.
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Paul2660

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Re: i1 Profiler: reading the targets
« Reply #2 on: May 19, 2011, 09:50:38 am »

It's not as much read errors, as the patch is just too dark for Publish to read. 

Curious what your print/paper combination was. 

So far with publish, the main issue I have is figuring out the media type for the paper selected.
I use both a 7800MK and 9880PK.  For any type RC luster paper over 220W, I will always select
Epson Premium Luster 260W as my media type.   If you print the targets from publish on a 9880
on Epson Luster 260W, Lexjet esatin, Canon Luster and use the media setting of PLPP260W, or
Epson Premium Glossy 250W most likely  you will get a target printed which will have at least 10% of
the lines unreadable.  No matter how slow or how many times you scan it.  If you back off the ink density
10%, then you will be able to read the targets with no problems.  I have not yet tried to use the Luster
media setting.  However I am quite certain that the different media settings allow for more or less ink on the
paper.   This issue has been replicated by other users with 9880's.  I also know that for some reason the
9880 prints the targets darker than say a 9900 both using PK ink.  Not sure why that is. 

I should also mention that these same targets which won't complete in publish read fine in the older
profile maker 5.0 software with no errors. 

So for me the solution has been to back off number of patches, to around 600, create a profile and then
optimize the new profile.  The optimization step is the key IMO anyway.  And is a part of the process that is not easy
to find documentation on.

The solution for me currently is to fine a media setting that allows me to complete a target read.

Paul Caldwell
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Paul Caldwell
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digitaldog

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Re: i1 Profiler: reading the targets
« Reply #3 on: May 19, 2011, 09:57:46 am »

The solution for me currently is to fine a media setting that allows me to complete a target read.

You can download this file, print with various settings and pick the one that produces the best separation in darker tones:
http://digitaldog.net/files/InkDensity.zip
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fighterkitekook

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Re: i1 Profiler: reading the targets
« Reply #4 on: May 20, 2011, 03:38:43 am »

 I have been using
   Epson R2400  with Lyson R2400 pigment inks on Kirkland Glossy paper I got from CostCo.
   Epson Artisan 50 with 'el cheapo ebay inks on Kirkland Glossy...

the profile have been fantastic.
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Wayne Fox

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Re: i1 Profiler: reading the targets
« Reply #5 on: May 24, 2011, 02:51:12 am »

You can download this file, print with various settings and pick the one that produces the best separation in darker tones:
http://digitaldog.net/files/InkDensity.zip
This looks useful.  Thx.  Would this be best printed like a target with color management?
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digitaldog

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Re: i1 Profiler: reading the targets
« Reply #6 on: May 24, 2011, 09:27:16 am »

This looks useful.  Thx.  Would this be best printed like a target with color management?

No, you want to test the behavior of how the driver is printing those untagged targets.
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