Browse Prior Art Database

EXTENDED RUN

IP.com Disclosure Number: IPCOM000025242D
Original Publication Date: 1984-Apr-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 86K

Publishing Venue

Xerox Disclosure Journal

Abstract

To maximize productivity in centralized reproduction environments, it is highly desirable, from the viewpoint of both the copier manufacturer and the customer, to extend copier running time as much as possible before operator intervention is required. The technique proposed here allows the copier to recover from certain jam situations that would. normally result in copier shutdown. As a result, paper handling reliability is improved. Further, the copier is not disabled or shutdown in the event of a jam which enhances the customer's perception of reliability, and the operator is given the option of clearing the jam while the copy job is being run without shutting the copier down or at the end of the job, thereby making jam clearance more convenient.

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XEROX DISCLOSURE .JOURNAL

EXTENDED RUN Proposed Eugene B. Franko Classification

U.S. Cl. 27 1 /9 Int. CI. R65h 3/44

To maximize productivity in centralized reproduction environments, it is highly desirable, from the viewpoint of both the copier manufacturer and the customer, to extend copier running time as much as possible before operator intervention is required. The technique proposed here allows the copier to recover from certain jam situations that would. normally result in copier shutdown. As a result, paper handling reliability is improved. Further, the copier is not disabled or shutdown in the event of a jam which enhances the customer's perception of reliability, and the operator is given the option of clearing the jam while the copy job is being run without shutting the copier down or at the end of the job, thereby making jam clearance more convenient.

The present technique is referred to as extended run. In the event of a possible jam in feeding a copy sheet from the copier main paper tray, indicated by a failure of the copy sheet being fed to arrive at the take away roll at the main paper tray exit within a specified time interval, the copier auxiliary tray is actuated to feed a copy sheet from that tray. Since it is not certain at that point that a paper jam has, in fact, occurred in the main paper tray, a second attempt is made to feed a copy sheet from the main paper tray while the auxiliary paper tray is feedine. If the copy sheet fed from the main paper tray on the second try arrives at the main paper tray take away roll within a second timing interval, the auxiliary tray is disabled and the main paper tray thereafter used.

If, however, the copy sheet fed from the main paper tray do...