[argyllcms] Re: Help needed: printer profiling with xrite dtp-41b
- From: Roger Breton <graxx@xxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Mon, 18 Apr 2011 14:12:51 -0400
Better yet. Send me your printed strips with the *.ti files and I'll read
them over for you, here, free with my DTP41s. I'll send you back the
measurement files and you can then resume making your own profile. In the
same time, I'll get a better look at your printed target for potential
problems.
Contact me offlist if your're interested at graxx@xxxxxxxxxxxx
Best / Roger
-----Original Message-----
From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx]
On Behalf Of Ron Gage
Sent: April-18-11 12:56 PM
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Re: Help needed: printer profiling with xrite dtp-41b
First of all:
Thanks everyone for your advice so far on this. It has proven to be quite
helpful.
Unfortunately, I still can't get the XRite to read the strips. The exact
error message I am getting: Strip read failed due to misread (Bad Reading).
I tried several different alignments between strip A and the alignment mark
on the body of the XRite - nothing seemed to help. I also tried feeding the
strip from both directions (with the strip id tags both leading and
trailing). When I read with the strip id tags leading, the instrument will
read the entire strip before giving the error. When I read with the strip
id tags trailing, the misread error comes up almost immediately. I am
therefore guessing that having the id tags leading is the "right way" to do
this. :)
Does anyone know of a reasonably priced printer calibration service here in
the states where I can send my printed strips and my argyll data files and
get back a reasonably close profile?
Ron Gage
Westland, MI
On 4/16/2011 6:08 AM, Alastair M. Robinson wrote:
> Hi,
>
> On 16/04/11 04:20, Ron Gage wrote:
>
>> I can't even get it to read the first strip or even part of it. So
>> far, I have figured out that the alignment mark on the body should be
>> the center of the sample strip. That's about it.
>
> Yup, that's right - the sensor is aligned with that mark, and
> front-to-back it's a little under halfway back.
>
> When you insert a strip, the leading edge should go in about
> two-thirds the depth of the machine before it meets the rear drive
> rollers. There needs to be white paper under the sensor when the
> strip read starts, hence the need for the inch-and-a-half of white at
> the head of the strip.
>
>> The XRite I have access to is actually at work and used weekly to
>> calibrate color on a pair of Xerox iGen-3 printers. I'm pretty sure
>> they are working.
>
> That should be fairly conclusive - but if you want to make sure your
> own machine's communcating with it properly, you could try using
> spotread, to take single colour readings from whatever's under the
> sensor without having to worry about strip recognition.
>
>> I'm not even sure if it's reading the strips at all, then again, I
>> tightly trimmed the paper to the sample region. Looks like I need to
>> re-print.
>
> Yeah that's probably your problem - you should cut down the dashed
> lines, rendering the strips no more than about 4 inches wide
> (otherwise you won't be able to read the leftmost strips!) but
> otherwise you should leave the paper uncut.
>
>> I would have to write it down but I believe it says something about
>> incomplete read.
>
> That's consistent with "over-enthusiastic" trimming of the paper, so
> hopefully that's it. :)
>
>> So it would appear.
>
> I have to say I like the DTP41 way more than the eye-one Pro for strip
> reading - though it can be very picky about testcharts that are
> less-than-perfect.
>
> All the best
> --
> Alastair M. Robinson
>
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