Canon Inc.’s Latin American subsidiary is suing Miami law firm Diaz, Reus & Targ, saying it was billed $6 million in an effort to collect $247,000 from a office equipment distributor in Costa Rica.

The law firm issued a statement in response to the malpractice complaint filed Sept. 23 in Miami-Dade Circuit Court saying it was being made a scapegoat in “an internal corporate dispute.”