Duplex printing system

Details Duplex printing system Duplex printing system

2005-07-05

2005-07-05

Yan, Ren (Department: 2854)

Printing

Rolling contact machines

Rotary

C101S229000, C101S231000, C101S246000, C271S277000

Reexamination Certificate

active

06912952

ABSTRACT:
Apparatus for duplex printing comprising: a first impression roller (24) on which a first side of a sheet (22) having a leading edge and a trailing edge is printed referenced to the leading edge; a second impression roller (26) on which a second side of the sheet is printed; and a transport system (20) that removes a printed sheet from the first impression roller (24) and transports it to the second impression roller (26), the transport system comprising a perfector (32) that receives the sheet and grips it along both the leading and trailing edges of the sheet, which perfector turns the sheet over and transfers the sheet trailing edge first towards the second impression roller.

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