I decided to promote my comment on the Ah’Nee article to a full post. I may add to this as time permits.
The Xerox Workcenter 7655 machine I have hear so much about but some questions have never been answer.
1-How do we know the WH even has one?
2-If they do have one how does anyone know it was use in the coping [sic] Obama’s BC?
3-One place call [sic] it a 7655 link to RC and another was 7535 @ Dr. Conspiracy do Obots just make up numbers?
4-Do all Xerox scanners do this? If so Xerox may be sued .
Since BR will never let a comment through from me I will answer Father Time’s questions here.
- We know the White House has Xerox WorkCentre equipment in use because at least two documents posted at the White House web site show XeroxWorkCentre models in the metadata. The Obama and Biden tax returns published a few days before the LFBC was released in 2011 show that the creator is a Xerox WorkCentre 7655. Another document posted on the site a few weeks later was scanned on a WorkCentre 7765. Finally, government web sites list Xerox as a supplier of office equipment to the Executive Office of the President in the same time frame.
- A number of factors clearly show the original scan was done on a Xerox WorkCentre and then resaved in Preview on a Mac. The compression artifacts and layering are identical to similar documents scanned on WorkCentres and the JPG has a comment tag of “YCbCr” that is found on all the other color scans that we have seen that were produced on Xerox WorkCentres.
- No these are real models that NBC and I have used to scan real documents. Check the Xerox web site for a full list of models. Unlike Birthers we have no need to make up stuff.
- NBC has done testing on a Xerox WorkCentre 7655 and I have done testing on two different models, a WorkCentre 7535 and 7435. They generate very similar PDF’s with the same artifacts. It only makes sense that Xerox would use the same compression algorithm in the entire line.
The “YCbCr” comment tag is another clue that the same algorithm is used in the entire WorkCentre line. When a problem was discovered with the JBIG2 algorithm (it was noted that it wrongly scanned a number in rare cases) Xerox listed the full line of WorkCentre products as having the same bug.
Sue Xerox for what reasons? Why would anyone sue Xerox because a bunch of lunatics do not understand image compression?
[Updated 2/24/14: An RC Radio hat tip to Thomas B. for editorial suggestions.]