A plurality of marks (11) equidistantly provided on both side edge parts (1a) of a long medium (1), a plurality of first indicator holes (12) equidistantly given on at least one of the side edge parts (1a), and a plurality of second indicator holes (13) given on at least one of the side edge parts (1a) on a straight line different from a row of the first indicator holes (12) at spacings shorter than spacings of the first indicator holes (12) are provided, and the second indicator holes (13) are each provided to a side of a trailing-end mark (11b), and each gradually comes closer to a leading-end mark (11a) as the long medium (1) runs toward a trailing end.

A feeder, for which carrier tape is reliably inserted to a specified position without contacting engaging protrusions of sprocket, is provided. The feeder includes an entrance retaining member that pushes the carrier tape inserted into a tape insertion section towards a tape feeding path, a rotatable lever that raises the entrance retaining member when the carrier tape is inserted into the tape insertion section, and a contact prevention device that prevents contact between the carrier tape inserted into the tape insertion section and the engaging protrusions when the entrance retaining member is raised by the rotation of the lever.

A feeder, for which carrier tape is reliably inserted to a specified position without contacting engaging protrusions of sprocket, is provided. The feeder includes an entrance retaining member that pushes the carrier tape inserted into a tape insertion section towards a tape feeding path, a rotatable lever that raises the entrance retaining member when the carrier tape is inserted into the tape insertion section, and a contact prevention device that prevents contact between the carrier tape inserted into the tape insertion section and the engaging protrusions when the entrance retaining member is raised by the rotation of the lever.

A feeder for which carrier tape is reliably inserted to a specified position, the feeder including entrance retaining member that pushes carrier tape inserted into tape insertion section towards tape feeding path, rotatable lever that raises entrance retaining member when carrier tape is inserted into tape insertion section, and stopper member that regulates the insertion position of the carrier tape inserted into tape insertion section to a specified position when entrance retaining member is raised by the rotation of lever.

Conveyance means for conveying an IC tag continuous body includes a tractor feeder unit for conveying the IC tag continuous body by engaging and disengaging feed pins with sprocket holes formed in the IC tag continuous body and a negative pressure conveyance unit for conveying the IC tag continuous body while suctioning it to a conveyance belt, and printing on the IC tags in the printing device is configured such that a toner image transferred to the IC tags by a print unit is optically fixed by an optical fixation unit in a non-contact manner.

Conveyance means for conveying an IC tag continuous body includes a tractor feeder unit for conveying the IC tag continuous body by engaging and disengaging feed pins with sprocket holes formed in the IC tag continuous body and a negative pressure conveyance unit for conveying the IC tag continuous body while suctioning it to a conveyance belt, and printing on the IC tags in the printing device is configured such that a toner image transferred to the IC tags by a print unit is optically fixed by an optical fixation unit in a non-contact manner.

A plurality of marks (11) equidistantly provided on both side edge parts (1a) of a long medium (1), a plurality of first indicator holes (12) equidistantly given on at least one of the side edge parts (1a), and a plurality of second indicator holes (13) given on at least one of the side edge parts (1a) on a straight line different from a row of the first indicator holes (12) at spacings shorter than spacings of the first indicator holes (12) are provided, and the second indicator holes (13) are each provided to a side of a trailing-end mark (11b), and each gradually comes closer to a leading-end mark (11a) as the long medium (1) runs toward a trailing end.

A plurality of marks (11) equidistantly provided on both side edge parts (1a) of a long medium (1), a plurality of first indicator holes (12) equidistantly given on at least one of the side edge parts (1a), and a plurality of second indicator holes (13) given on at least one of the side edge parts (1a) on a straight line different from a row of the first indicator holes (12) at spacings shorter than spacings of the first indicator holes (12) are provided, and the second indicator holes (13) are each provided to a side of a trailing-end mark (11b), and each gradually comes closer to a leading-end mark (11a) as the long medium (1) runs toward a trailing end.

The method serves for producing flexible packaging products, more particularly packaging bags, the packaging products being formed by welding together two film layers. In order to avoid imprecisions in the sequence of process steps, film sections (4) formed of film layers are separated from a film web (7a; 7b) and transferred to a transport device (1) where they are positively fixed at least at one edge by means of a fixing device (3). Then the film sections (4) are transported by means of the transport device (1) in a transport direction (5) to at least one welding station (12) while maintaining the positive fit, the film layers are welded together in the latter, and the film sections (4) are subsequently further transported while maintaining the positive fit.

The method serves for producing flexible packaging products, more particularly packaging bags, the packaging products being formed by welding together two film layers. In order to avoid imprecisions in the sequence of process steps, film sections (4) formed of film layers are separated from a film web (7a; 7b) and transferred to a transport device (1) where they are positively fixed at least at one edge by means of a fixing device (3). Then the film sections (4) are transported by means of the transport device (1) in a transport direction (5) to at least one welding station (12) while maintaining the positive fit, the film layers are welded together in the latter, and the film sections (4) are subsequently further transported while maintaining the positive fit.