Re: Cyan overlay when printing with Epson 3800
Re: Cyan overlay when printing with Epson 3800
- Subject: Re: Cyan overlay when printing with Epson 3800
- From: Martin Orpen <email@hidden>
- Date: Fri, 13 Jul 2012 11:42:24 +0100
On 13 Jul 2012, at 11:10, Tom Lianza wrote:
> Well Martin,
>
> Let's look at what you just said:
>> if you print a TIFF image which is a 2" white square on an A2 sheet
>> the Profilemaker profile will cause the Epson printer to put a cyan dot from
>> the edge of the 2" square (which will be a clean white) all the way to the
>> edge of the paper."
>
> As you have pointed out, the image, itself, is correctly rendered, the scum
> dot occurs in the non image area. What does the profile have to do with
> that area? Nothing....If you use the same profile on an HP printer, no
> problem. Use the same profile in a Professional Rip: no problem. Did it
> ever occur to you that we are doing something that is covered in the
> specification, but not correctly implemented in some part of that specific
> instance of the Epson-Apple print path? By the way, when I used my PC with
> my Epson, there was no problem, but I do see the issue on my Mac system. Do
> you honestly believe that when we discovered the problem, we just ignored
> it? I can assure you, that I didn't ignore it and the team that works on
> the profile generation did not ignore it. The profile was tested using a
> number of in-house and third party tools and many different vendor print
> paths The profile was examined by third parties and as you see from
> Andrew's post, no one else seemed to have an issue. We passed images and
> profiles to all the parties involved for testing and contacted Apple. Have
> the other parties looked at the issue? I honestly don't know.
>
> I don't doubt that there is a specification interpretation problem between
> vendors. I am co-chair of the ICC and I see this problem all the time. The
> subtleties, particularly in the area of curves within a 3d-lut profile can
> be quite confounding to some vendors. I will say this: if something happens
> outside of the image rendering path, it is outside of our field of expertise
> and responsibility. If any company comes back to us with questions about
> our profiles, we take those questions very seriously and work to resolve the
> issue. I have not heard that we got any vendor feedback on this issue. I
> will check on this issue, but I am pretty certain there has been no
> resolution on the part of the other vendors.
Tom
The reason that you didn't get any feedback on this issue and were unable to replicate the problems is that you were discussing it with other vendors and NOT the end users who have to deal with this crap.
As you say above "what does the profile have to do with that area?" -- all of the people who print images for a living and have wasted tons of media, ink and time would like an answer to the same question.
But that answer can only come from X-Rite, because X-Rite's are the only profiles that do this.
The official X-Rite line in the UK from the horse's mouth to me by telephone was: Buy a copy of i1 Profiler, open the glitchy Profilemaker profile and then re-save it… Problem solved. No special settings, no boxes to check -- just open the profile and then save it again.
For those of us who don't want to fork out a load of cash to fix problems with legacy profiles, my advice is: export the data from the profile and create a new profile in ArgyllCMS, for free. Problem solved… for free.
Funnily enough I mentioned this problem to Epson's chief UK printer tech last week who said that he too was aware of this "Apple problem", but they couldn't work out why it only affected specific customers. So I told him that they'd be the ones using Profilemaker profiles.
Still interested to hear about the changes that X-Rite made to the profiles between the beta and final release versions that stopped this from happening. Won't hold my breath though.
Regards
--
Martin Orpen
Idea Digital Imaging Ltd
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