HP INCFollow


Structure for preventing paper double feeding by using the hybrid retard


In the case of the reverse retard separation structure, the paper that has passed through

the Nip can be returned to its original position, so the separation performance is

excellent. However, the Pick-up Roller Unit has to be up/down on every page, which is

why it is noisy and vulnerable to durability.

The present invention operates in a semi-retard separation structure during normal

operation (normal output), and when a multi-feed is detected, reverse operation is

performed to realize only the advantages of the two structures.

Creative Commons License

Creative Commons License
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