[argyllcms] Re: Epson 1400 A3+ Chart

  • From: Ivan Tsyba <ivantsyba@xxxxxxxxx>
  • To: "argyllcms@xxxxxxxxxxxxx" <argyllcms@xxxxxxxxxxxxx>
  • Date: Sat, 1 Feb 2014 12:40:49 +0200

Tomazh, you're right.

So, precisely measure your Colormunki width in mm (calipers will help), and
you get CMW. Then calculate needed row width: RW=CMW/5. Then calculate
needed scale factor for printtarg: A=RW/8
And finally use this factor in printtarg: -a A


2014-02-01 Tomasz Danus <t.danus@xxxxxxxxx>:

> Ivan
>
> Unfortunately not every CM is 41.3mm wide.
> Mine is 42.0 - 2,5 years old purchased in UK
> and it was discussed here that various CM has different width.
> So your advice is perfectly fine if you replace 41.3 by X
> and every one can make their own calculation based on
> their own particular CM unit
>
> Cheers
> Tom
>
> --
> t.danus@xxxxxxxxx
> Skype: Ithilstone
>
>
> On 31 January 2014 11:03, Ivan Tsyba <ivantsyba@xxxxxxxxx> wrote:
>
>> Default i1 8 mm patch size is not good for ColorMunki.
>> Use 8.26 mm row width: ColoMunki width is 41.3 mm, 41.3 / 5 = 8.26, so
>> you can read target with ruler
>>
>> Just add to printarg "-a 1.0325" that scale i1 row to 8.26 mm
>> (8*1.0325=8.26).
>>
>>
>> 2014-01-31 Todd Sailor <mfdisme@xxxxxxxxx>:
>>
>> That seemed to have worked. I did tweak the -p value to 330x482.
>>>
>>> It took a bit with Adobe Color Printer Utility, but scaling at 97% got
>>> it all on one page.
>>>
>>> Thanks!
>>>
>>>
>>> On Jan 30, 2014, at 5:59 PM, BC Rider <bcrider99@xxxxxxxxxxx> wrote:
>>>
>>> >> However, I still need some help filling up an A3+ (13"x19") sheet
>>> with patches. I have a ColorMunki and I understand 8mm is an acceptable
>>> minimum size. I would like to fill a page or two with patches at this size.
>>> >>
>>> >> Could someone walk me through the targen string, or provide it?
>>> >>
>>> >
>>> > What printtarg string are you using?  The following will support 1748
>>> patches assuming I have the A3+ size correct:
>>> >
>>> >     printtarg -v -iCM -h -a0.6 -t360 -p333x482 testname
>>> >
>>> > Given that, targen just needs to produce a 1748 patch target:
>>> >
>>> >     targen -v -d2 -G -f1748 testname
>>> >
>>> > Be sure to measure your printed target to check for unexpected scaling
>>> problems.  Suggest scanning with a double-sided ruler (search archives for
>>> discussion of this) with 8.22mm patch size (measure 10 rows and divide by
>>> 10).
>>>
>>>
>>>
>>
>

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