Variable speed sheet transport system

Details Variable speed sheet transport system Variable speed sheet transport system

1990-06-18

1991-09-24

Schacher, Richard A.

Sheet feeding or delivering

Feeding

By means to convey sheet

271202, B65H 502

Patent

active

050508598

ABSTRACT:
A conveyor system for transporting sheets between two process stations in hard-copy output apparatus, such as copiers and printers. The system includes a plurality of interleaved belts which extend between the process stations and around rollers of different diameter to selectively raise the belts in a predetermined fashion for contact with the sheet at specific portions along the sheet transfer path. The belts are divided into two groups which operate at different speeds. The faster group receives the sheet from the first process station and moves the sheet to the second group of belts which moves at a slower speed. The speed of the second group can be adjusted by sensing the speed of the sheet in the transition area of the two belt groups to compensate for slippage between the sheet and belts.

REFERENCES:
patent: 2318451 (1943-05-01), Belluche et al.
patent: 2852256 (1958-09-01), Faulls
patent: 4200276 (1980-04-01), Marschke
patent: 4453667 (1984-06-01), Zerfahs
patent: 4461467 (1984-07-01), Herb
patent: 4585227 (1986-04-01), Muller
patent: 4598901 (1986-07-01), Thomas
patent: 4718656 (1988-01-01), Reist
patent: 4913415 (1990-04-01), Weber

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