Brother Kogyo Kabushiki-Kaisha

Hirokazu Iwata

Mutsuo Fukuoka

The invention provides a lamination apparatus including using a sheet roll with an encoder plate secured to the end face of an adhesive sheet roll, and a slit pattern on the encoder plate being detected by a photointerruptor. In addition, a duty ratio is calculated on the basis of rectangular pulse signals output from the photointerruptor, thereby identifying the type of the adhesive sheet roll. Further, the period of the rectangular pulse signals output from the photointerruptor is compared with a predetermined value, such that the trailing edge of the adhesive sheet of the adhesive sheet roll is detected at the time point when the period is smaller than the predetermined value.

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Iwata, Japan

Hirokazu Iwata