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SEPARATION AND SEQUENCING TO ACHIEVE REVERSION

IP.com Disclosure Number: IPCOM000025393D
Original Publication Date: 1985-Feb-28
Included in the Prior Art Database: 2004-Apr-04
Document File: 6 page(s) / 196K

Publishing Venue

Xerox Disclosure Journal

Abstract

This is a method of making duplex copies from large simplex original documents, wherein these large original documents are recirculated short edge first in a recirculating document handler rather than a normal long edge first orientation provided for normal size documents. The system disclosed herein does not require any new copier hardware for the rotation of the copy sheets in the copier processor. However, it does require a special sequence requiring some manual intervention of the copier operator to manually rotate the document set during the sequence. (Note that operator reorientation of originals is done for another purpose in the operation of the Xerox "8200" copier for duplex copies, as disclosed in U.S. Patent No. 4,313,673). The present system is useful for feeding two smaller original documents such as an A4 size original to the platen simultaneously or sequentially, to make two side-by-side images on a single large A3 size copv sheet in the copier processor at a time. These A3 copies may then be fed through the processor, slit in half at the output and stacked into separate compiler/- finishers. The effective copy output rate is doubled in this manner. However, where the two A4 originals are being fed short edge first in this system, the "reversion" of every other original is required for operating in a simplex tooduplex copying mode.

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Page 1 of 6

XEROX DISCLOSURE JOURNAL

SEPARATION AND SEQUENCING TO ACHIEVE Proposed Classification REVERSION U.S. (31. 355/14R James E. Britt , Int. C1. G03g 15/00 Thomas Acquaviva

It23 4

F/G 3

Volume 10 Number 1 January/February 1985 45

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Page 2 of 6

SEPARATION AND SEQUENCING TO ACHIEVE REVERSION (Cont'd)

FIG 4

FIG 5

FIG 6

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3

46

    XEROX DISCLOSURE JOURNAL Volume 10 Number 1 January/February 1985

[This page contains 1 picture or other non-text object]

Page 3 of 6

SEPARATION AND SEQUENCING TO ACHIEVE REVERSION (Cont'd)

    XEROX DISCLOSURE JOURNAL Volume 10 Number 1 January/February 1985 47

[This page contains 1 picture or other non-text object]

Page 4 of 6

SEPARATION AND SEQUENCING TO ACHIEVE REVERSION (Cont'd)

This is a method of making duplex copies from large simplex original documents, wherein these large original documents are recirculated short edge first in a recirculating document handler rather than a normal long edge first orientation provided for normal size documents. The system disclosed herein does not require any new copier hardware for the rotation of the copy sheets in the copier processor. However, it does require a special sequence requiring some manual intervention of the copier operator to manually rotate the document set during the sequence. (Note that operator reorientation of originals is done for another purpose in the operation of the Xerox "8200" copier for duplex copies, as disclosed in U.S. Patent No. 4,313,673). The present system is useful for feeding two smaller original documents such as an A4 size original to the platen simultaneously or sequentially, to make two side-by-side images on a single large A3 size copv sheet in the copier processor at a time. These A3 copies may then be fed through the processor, slit in half at the output and stacked into separate compiler/- finishers. The effective copy output rate is doubled in this manner. However, where the two A4 originals are being fed short edge first in this system, the "reversion" of every other original is required for operating in a simplex tooduplex copying mode. in its plane, end for end, as opposed to "inversion" which means to turn the document over (reversing its facing). Previous attempts at solving the "reversion" problem required large bulky devices and/or tortuous document paths. With the present system this may be done semi-automatically using a conventional document handler and copier processor capable of simplex to duplex (S/D) operation and manual document reversion.

Reversion is defined as rotating the document sheet 180

Figures 1-8 show schematically a conventional N-1 racetrack RPH (recirculating document handler) with the addition of a bottom feeder at an SADH input station at the right hand side, and a document ejection catch tray on the left. For S/D mode, the operator places all the simplex originals face-up in the top (RD!-J) tray with the top edge of the stack facing int...