A system and method for marking components of an assembly and/or portions of an assembly including at least one of the components with a plurality of markers, each component and/or portion including its own marker or markers, to be read in an operational sequence so as to generate at least one identifier representative of a characteristic and/or feature of the assembly. Any marker can be a certain type of marker, the combination of which can be used to generate an identifier. A certain type of marker 1 need not be dedicated to a certain component. Each marker can be associated with a proxy value, which can be obtained by reading the marker with a reader. An identifier of the assembly can then be generated by employing a predetermined sequence of reading the markers.

A mounting machine acquires identification information arranged in a back-up plate, from the back-up plate. The mounting machine controls a conveyance unit so as to change a conveyance lane based on mounting conditions when the acquired identification information is identification information which is included in the mounting conditions of a printed circuit board. Meanwhile, in the mounting machine, when the acquired identification information is not the identification information which is included in the mounting conditions of the printed circuit board, the conveyance lane is stopped from being changed. In this manner, a conveyance width of the conveyance lane is not changed when the back-up plate which is ready to be subjected to mounting processing and matches the mounting conditions is not mounted.

A system and method for marking components of an assembly and/or portions of an assembly including at least one of the components with a plurality of markers, each component and/or portion including its own marker or markers, to be read in an operational sequence so as to generate at least one identifier representative of a characteristic and/or feature of the assembly. Any marker can be a certain type of marker, the combination of which can be used to generate an identifier. A certain type of marker 1 need not be dedicated to a certain component. Each marker can be associated with a proxy value, which can be obtained by reading the marker with a reader. An identifier of the assembly can then be generated by employing a predetermined sequence of reading the markers.

A method (200) for making a lighting device is provided. The lighting device comprises a carrier having a side on which lighting elements are to be mounted in a selected arrangement in relation to each other using the surface-mount equipment. The method comprises marking (201) on the side of the carrier, using a marking substance comprising an ink composition, indications of the positions on the side of the carrier where the lighting elements are to be placed in order for the lighting elements to become mounted on the side of the carrier according to the selected arrangement of the lighting elements in relation to each other, wherein at least one of the surface-mount equipment or the marking substance is arranged such that the marking substance is detectable by the surface-mount equipment. Using the surface-mount equipment and based on the indications marked on the side of the carrier, the lighting elements are placed (204) on the side of the carrier so that the lighting elements become mounted on the side of the carrier in accordance with the selected arrangement of the lighting elements in relation to each other.