Javanainen scored 462 goals for a total of 792 points in 17 seasons with Ässät Pori and TPS Turku. He also represented Finland in three World U20 Championships, two World Championships, the 1984 Olympics and the 1981 Canada Cup, totalling 82 national team games.
Javanainen was drafted twice by NHL teams - Montreal in 1983 and Pittsburgh in 1984. He would play 14 games with the Penguins in 1984-85, Mario Lemieux's rookie season. Arto scored 4 goals and 5 points.
Javanainen's number 4 is retired by Pori and inducted into the Finnish hockey hall of fame in 2000. After retirement he became a car salesman.