Device for trimming and automatic cutting of images on paper...

Cutting – With means to monitor and control operation

Reexamination Certificate

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Details

C083S364000, C083S365000, C083S368000, C083S614000, C083S948000

Reexamination Certificate

active

07055418

ABSTRACT:
A device for trimming and automatically cutting of either multiple or single images, the images produced for example through digital rendering on paper and other graphic and photographic substrates, wound in reel or being in single sheets (10), especially of large size. Problems in using known devices of this type with feeding rollers (2) with a length corresponding to the substrate width have the consequence of a slowing down of the production owing to the excessive care necessary when introducing at the same time parallel sheets of large size. These problems can be overcome by using rollers of reduced length, but only by adding errors in the forward movement of the substrate, errors which are remedied by of optical sensors (4, 4′) for detecting the separation mark (M) between the images (10a, 10b, . . . ) as well as its angle with respect to the cutting line (7), and by a pair of length differential measuring devices (6).

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