According to the law in some jurisdictions it is. (notably most EU Member States, and several others worldwide).

In those places actually fees are included ("reprographic levy") in the appliance, and the needed supply prices, or public operators may need to pay additionally based on usage. That money goes towards funds created to compensate copyright holders for loss of profit due to copyright infringement carries out through the use of photocopiers.

Xerox is in no way singled out and discriminated against. (Yes, I know this is an Americanism)