PRINTER ARCHITECTURE TO SUPPORT INTERMIXED PAPER LENGTH JOBS
Original Publication Date: 1990-Oct-31
Included in the Prior Art Database: 2004-Apr-05
Xerox Disclosure Journal
In an Electronic Reprographic System or Electronic Printing h a g e Output Terminal (IOT), it is desirable to be able to print jobs composed of mixed paper lengths at full productivity with no additional operator attention. Paper length is defined as the dimension orthogonal to the printer process direction.
XEROX DISCLOSURE JOURNAL
PRINTER ARCHITECTURE TO Proposed Classification SUPPORT INTERMIXED PAPER U.S. C1.355/311 LENGTH JOBS
Michael E. Farrell
Int. C1. G03g 21/00
In an Electronic Reprographic System or Electronic Printing hage Output Terminal (IOT), it is desirable to be able to print jobs composed of mixed paper lengths at full productivity with no additional operator attention. Paper length is defined as the dimension orthogonal to the printer process direction.
To support dynamic changes in paper length within a job at full productivity requires an IOT architecture with the following elements: (1) top or bottom sheet and set registration (not center registration), (2) two or more paper feeders capable of feeding unequal length paper, (3) control of paper feeders on a sheet by sheet basis, (4) paper and finisher set path hardware that is capable of synchronously adjusting to paper length changes or is insensitive to paper length changes, (5) a paper handling control system capable of associating paper length with specific sheets in a job, and (6) an imaging subsystem that is capable of dynamically adjusting to variable image lengths or is insensitive to image length changes.
One enablement using the above described features incorporates the following elements to achieve the desired results: (1) top edge sheet and set registration,
(2) three feeders, each independently adjustable for paper length, (3) paper feeder control on a sheet by sheet basis (ie. each s...