Duplexing copying system

Details Duplexing copying system Duplexing copying system

1977-08-22

1980-02-05

Fisher, J. Reed

Printing

Rolling contact machines

Rotary

101230, 101231, 101234, 101426, 271225, 271DIG9, 355 24, B41F 502, B41F 1328, B41F 2104, B41F 2108

Patent

active

041866622

ABSTRACT:
A system for duplicating images wherein a copy sheet is delivered to an impression cylinder. A first image is transferred to one side of each sheet. Each sheet is then removed from the impression cylinder, delivered to a reversing means and then to the impression cylinder, trailing edge first. The re-feeding is in synchronism with the second image whereby this second image is transferred to the opposite side of each sheet. The impression cylinder is provided with a first gripper for engaging the leading edge of each sheet when the sheet is first fed to the impression cylinder. A second gripper is provided on the impression cylinder for engaging the trailing edge of each sheet. The impression cylinder thus simultaneously carries the sheets as the sheets are moved through the stages of operation.

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