Glen A Dumas

US Patent:

55963897, Jan 21, 1997

Filed:

Dec 12, 1994

Appl. No.:

8/353970

Inventors:

Glen A. Dumas - Henrietta NY
Michael E. Farrell - Ontario NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G03G 2100

US Classification:

399 16

Abstract:

There is provided a scheduling apparatus for a printing system, the scheduling apparatus including a memory for storing a set of two or more feed signals, the set of feed signals including a first feed signal and a second feed signal with the first feed signal and the second feed signal corresponding respectively with a special sheet and an imagable regular substrate having opposing sides. The scheduling apparatus further includes a controller for generating the first and second feed signals. The controller, which communicates with each of a print engine and a special sheet insertion apparatus determines whether the imagable regular substrate is to imaged on both of the opposing sides and, when it is determined that the imagable regular substrate is to be imaged on both the opposing sides, the controller schedules the first and second feed signals to be transmitted respectively to the print engine and the special sheet insert apparatus during a single pitch.

US Patent:

45218471, Jun 4, 1985

Filed:

Sep 21, 1982

Appl. No.:

6/420995

Inventors:

Richard T. Ziehm - Webster NY
Stephen P. Wilczek - Fairport NY
George E. Baker - Rochester NY
Raymond R. Husted - Rochester NY
Glen A. Dumas - Henrietta NY
Keith G. Bunker - Rochester NY
George H. Place - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G06F 1100

US Classification:

364184

Abstract:

The present invention is a multiprocessor control system that allows full job recovery after a machine power down or after a malfunction or software crash or temporary power outage. In particular, essential variables such as the state and status of the machine and the programmed job at the time of the malfunction are maintained in nonvolatile memory. This information is continually updated in nonvolatile memory. Once the control system has reset and reinitialized all the control elements after a malfunction, the control restores or downloads all the relevant variables in the nonvolatile memory to the various control elements to maintain status. In another embodiment, the essential variables are maintained in RAM locations in a master processor and saved for downloading to the control elements.

US Patent:

51330482, Jul 21, 1992

Filed:

Sep 28, 1990

Appl. No.:

7/590627

Inventors:

Carol P. Parsons - Rochester NY
Kris D. Kirchner - Ontario NY
George W. Webster - Rochester NY
Glen A. Dumas - Henrietta NY
Timothy J. Kelley - Farmington NY
Michael E. Farrell - Fairport NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G06K 1500

US Classification:

395111

Abstract:

A high speed electronic printing system for processing ordered stock such as tabbed sheets is determined for use in maintaining the prints produced in correct sequence with the tabbed stock.

US Patent:

50815954, Jan 14, 1992

Filed:

Sep 28, 1990

Appl. No.:

7/590101

Inventors:

Josefina Moreno - Rochester NY
Paul J. Valliere - Fairport NY
John L. Rourke - Fairport NY
George W. Webster - Rochester NY
Glen A. Dumas - Henrietta NY
Kris D. Kirchner - Ontario NY
Jack R. Ratcliffe - Pittsford NY
Carol P. Parsons - Rochester NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

G06K 1500

US Classification:

395111

Abstract:

A high speed electronic printing system in which the number of paper trays for supplying print media is substantially less than the number of different print media selections that can be programmed for each print job, with a system for identifying missing print media while printing together with an available paper tray into which the print media can be loaded to allow uninterrupted processing of print jobs.