Black band detector for document sorting machines

Details Black band detector for document sorting machines Black band detector for document sorting machines

1980-08-05

1982-09-07

Rolla, Joseph J.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Sorting special items or sorting by methods and apparatus...

209588, 209900, 250223R, B07C 5342

Patent

active

043479367

ABSTRACT:
Apparatus for detecting black band separator documents placed as markers between batches of documents. The apparatus is responsive to four measurements which enable it to determine when a black band document has passed. These measurements relate to changes in the intensity of light transmitted through the document, the length of a black band, length of the document, and the position of the black band on the document.

REFERENCES:
patent: 3759382 (1973-09-01), Walkley et al.
patent: 3895220 (1975-07-01), Nelson et al.
patent: 4016980 (1977-04-01), DeHart et al.
patent: 4034341 (1977-07-01), Isono et al.

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