Component mounting line and component mounting method

A component mounting method in a component mounting line including a screen printing apparatus that prints paste on a substrate and a plurality of component mounting apparatuses that are arranged in series on the downstream side of the screen printing apparatus and perform a component mounting-relevant operation on the substrate on which the paste has been printed by the screen printing apparatus, the screen printing apparatus including a mask in which a first pattern-forming area in which a first pattern corresponding to a first type substrate is formed and a second pattern-forming area in which a second pattern corresponding to a second type substrate is formed are arranged in a predetermined pattern arrangement direction, a substrate support unit moving mechanism that moves a substrate support unit supporting a substrate in the pattern arrangement direction below the mask and that selectively brings the substrate into contact with one of the first pattern-forming area and the second pattern-forming area, a print head that prints the paste on the substrate selectively brought into contact with one of the first pattern-forming area and the second pattern-forming area by moving over the mask, each of the plurality of component mounting apparatuses including a first substrate carrying lane and a second substrate carrying lane which are arranged in the pattern arrangement direction, and a controller that selects a type of the substrate to be carried in the screen printing apparatus depending on whether a substrate is carried in the second component mounting apparatus downstream from the screen printing apparatus, the component mounting method comprising:

• a first operation step in which the each component mounting apparatus carries in the first type substrate on which the first pattern has been printed using the first substrate carrying lane and performs a component mounting-relevant operation on the first type substrate;
• a second operation step in which the each component mounting apparatus carries in the second type substrate on which the second pattern has been printed using the second substrate carrying lane and performs a component mounting-relevant operation on the second type substrate;
• and
• a selection step in which the screen printing apparatus selects the type of a substrate to be carried in depending on whether a substrate is carried in the second component mounting apparatus downstream from the screen printing apparatus.