http://www.cnet.com.au/printers/0,239035535,339279191,00.htm?ocid=nl_d_28062007_lat_l2
Printer manufactures are planning to use encryption to ensure only
their ink cartridges will work in their printers.
The printer manufacturer will have a perfectly captive market. The
manufacturer can raise prices over time and the users have no escape
other than junking their printers. The manufacturer can even obsolete
a perfectly good printer by refusing to manufacture the ink for it.
The one advantage to consumers is pirates won't be able manufacture
low-quality ink and pass it off as premium brand.
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Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com