| 摘要 |
PROBLEM TO BE SOLVED: To effectively improve production capacity for substrates of a plurality of lanes.SOLUTION: When simultaneous mounting by both of a first head unit 22a and a second head unit 22b, is alternately performed to a first substrate P1 or a second substrate P2 alternately conveyed by a first conveying lane 20a or a second conveying lane 20b, if one of the first substrate P1 or the second substrate P2 is set as a priority substrate and is conveyed, the head unit 22a and the head unit 22b are controlled to be moved by a driving part and to preferentially mount the first substrate P1 or the second substrate P2 set as the priority substrate. |
