The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2002
Filed:
Apr. 18, 1996
Douglas B. Beaudet, Rochester, NY (US);
David R. Hansen, Honeoye Falls, NY (US);
Michael P. Tompkins, Chili, NY (US);
Nexpress Solutions LLC, Rochester, NY (US);
Abstract
An electrophotographic copier/printer reproduction apparatus includes a marking engine that has a job image buffer (JIB) that queues jobs from a scanner and a raster image processor (RIP). The scanner supports the copier function of the apparatus and processes original documents by scanning the images thereon to form copier image data that is processed and stored in the JIB. The RIP processes printer data from a computer and transmits this data also to the JIB for further processing and storage. The RIP operates in two printer modes. In a first printer mode, data is sent to the JIB as it is RIPed and no provision is made for an interrupt for a copier job nor can a copy job be scanned in. This provides maximum efficiency for printer operation. In a second, less efficient, printer mode the JIB stores only a few and preferably one-print job at a time to leave room in the JIB for scanning in a copy job via an interrupt operation. A criterion for switching between the two printer modes is time of day, print job backlog or coding of a print job.