If I read the article correctly, the tracking software is installed as part of the supporting apps for the
printer, not necessarily as part of the driver set.
In a corporate environment, most of the attached computers would be using the printer over a network
connection, so would only install the drivers needed for basic printing. But the Server or workstation
that the printer is setup from might indeed have installed the additional apps.
I gave up on Lexmark when one printer (a 3200) simply refused to print anymore one day.
And the followup printer (an X75) would not let me use the color inks to print text when the
black ink cartridge ran out.
Currently I'm in the market for a new All-in-one printer, and its back to Epson, Canon, and
possibly HP as contenders.