Robbins was suspended for violating athletic department rules beginning with the Washington game Jan. 15 and was not due back to the Beavers' lineup until the Feb. 19 game against Utah.
Oregon State coach Wayne Tinkle did not know about the citation until after Sunday's 64-50 victory over the Huskies at Gill Coliseum. Robbins was on the bench during part of the game, but left in the second half.
Robbins was averaging 10.3 points and 3.5 rebounds before the suspension.
Details about Robbins' arrest Sunday by the Benton County Sheriff's Department were not immediately available.