On Sun, 11 Aug 2019 16:42:29 -0700, Jeff Liebermann <
je...@cruzio.com>
wrote:
>On Sun, 11 Aug 2019 18:15:56 -0500, Fox's Mercantile <
jda...@att.net>
>wrote:
>
>>Obviously, buy new toner.
>>Ever wonder where the yellow ink and toner goes?
>>Every page you print uses yellow to print all the
>>information it has about who and where you are.
>>And no, it won't print if it can't rat you out.
>
>Well, lets see if that works as you claim. Every page is marked with
>up to a maximum of 512 dots. Most MIC codes are less than half of the
>512 dots, but I'll use the maximum number for this exercise. Each dot
>is 0.1mm in diameter or 0.05mm radius. Therefore, the maximum
>coverage in yellow toner is:
> Pi * r^2 * number_of_dots = Total_area
> 3.14 * 0.05^2 * 512 = 4 sq-mm
>If all the 512 dots were arranged in a non-overlapping staggered grid
>pattern, that would produce a 2mm x 2mm yellow square. That's a
>really tiny area which would hardly affect yellow toner consumption.
>
>Machine Identification Code
><
https://en.wikipedia.org/wiki/Machine_Identification_Code>
Oops. I forgot to multiply by the number of times the pattern is
repeated on a page.
My count is 120 times for letter size paper. That would cover 480
sq-mm or 22mm x 22mm square (0.87 x 0.87 inches) maximum (if every
possible dot in the pattern was printed). That's much more toner
consumption than I originally estimated and would consume more yellow
toner than the other colors (except maybe black).
I recently inherited from a customer an HP LaserJet Pro m477fnw color
laser printer:
<
https://www.amazon.com/HP-Color-LaserJet-M477fnw-Renewed/dp/B01N5XP9TL/>
Quite good, but this particular model doesn't do double sided
printing. When I picked up the printer, the yellow toner level was
well below the other colors. The dots are visible with a microscope
and UV illumination.
Grumble...