Sheet feeding or delivering – Delivering to stack and feeding therefrom – With sheet sensor for selective location
Patent
1989-03-31
1990-05-15
Schacher, Richard A.
Sheet feeding or delivering
Delivering to stack and feeding therefrom
With sheet sensor for selective location
271291, 271301, 271902, 355318, 355320, B65H 3910
Patent
active
049251767
ABSTRACT:
A system and method of automatic signature printing for a copier, in which a job set of plural conventional non-signature document sheets in a normal collated page order are reordered into a signature printing page order, placed into the document loading tray of a recirculating document handler (RDH), and presented to the imaging station of the copier by the RDH, for producing plural image signature copy sheets from the copier suitable for folding and assembling into signature set booklets of proper page order; wherein the job set is initially as one stack in an automatic job loading system but with a specified approximately one-half of the document sheets being loaded in a face up orientation, and the others being loaded in a face down orientation. The document sheets are sequentially fed by a single feeder into the semiautomatic loading entrance of the RDH, and automatically loaded into the document loading tray of the RDH, with or without an inversion, corresponding to the initial job stacking orientation, so that they now have a common orientation, but are reordered into a signature printing page order, in which they may be normally circulated by the RDH for automatic signature printing. Special processing is provided for automatically inserting the requiste 1, 2 or 3 blank pages at the correct location on the signature copies for any size of job set. Also, for precollation signature copying with a duplex buffer tray copier. Automatic recollating of the job set after copying is also provided.
REFERENCES:
patent: 4334765 (1982-06-01), Clark
patent: 4355880 (1982-10-01), Stemmle
patent: 4391504 (1983-06-01), Acquaviva
patent: 4592651 (1986-06-01), Oikaqa et al.
patent: 4660963 (1987-04-01), Stemmle
patent: 4727402 (1988-02-01), Smith
patent: 4786041 (1988-11-01), Acquaviva
Xerox Disclosure Journal-"Special Copier Job Programming Using SADH Input of RDH/SADH"-Robert J. Michatek-pp. 41-42, vol. 11, No. 1, Jan./Feb. 1986.
Schacher Richard A,.
Xerox Corporation
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