On Saturday 13 February 2010 11:09:48 am Fred A. Miller wrote:
On 02/09/2010 02:16 PM, John Andersen wrote:
On 2/9/2010 11:07 AM, Ken Schneider - openSUSE wrote:
It says "paper type" _not_ manufacturer. Unless some new technology has been developed I doubt that the manufacturer of the paper can be detected
Really? You doubt that? A simple conductance test could server the purpose. Photo paper is different on each side. A simple comparison would do.
Many printers made today have 2 lasers or LEDs....normally 1 is blue and the other red. One reads the type of paper and often the size as well. This is 1 of the "complications" the community has in writing good Linux drivers for a number of printers, in particular when the maker doesn't want to give out the specs. for one of these newer printers.
Fred
Fred, actually they even go further. There was a show on the History Channel or national geographic's channel a couple of weeks ago about secret methods of tracking thing including printer where vendors can tell not only which printer printed it, but where the printer is located if was warranty registered. they said you need a special light, blue bulb I think to read it. Cookies on your computer are another one. My bank uses them to allow me to do only line banking. If I delete their cookies I have to answer security question to get back on. questions to -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org