USDJPY stays in a upward price channel on 4-hour chart. Support is at the lower line of the channel, as long as the channel support holds, the uptrend from 77.66 could be expected to resume, and another rise towards 83.00 is still possible. However, a clear break below the channel support will indicate that the rise from 77.66 has completed at 80.62 already, then the following downward movement could bring price back to 76.00-77.00 area.