Quote - Actually, I worked at IBM (as a temp) for a while, and they were the ones who would snap 'Photocopy!' every time I said Xerox...;)

There are two sides to everything.

Competitors don't want you to say "Xerox" instead of "photocopy" because if people are in the market for a photocopier, they might just go out and buy a Xerox copier without even thinking about the competition.

Xerox doesn't want you to say "Xerox" instead of "photocopy" because if people are in the market for a photocopier and they think "Xerox" is just another word for "photocopier", they might look at all the competitors' products and not even realize there's a Xerox company that makes photocopiers, too! Like all those times you might ask someone to buy you some Kleenex, and they go out and buy you the cheapest facial tissue on the market, the kind that's rough and gives you a red nose when you blow, because they think Kleenex is just another word for facial tissue.