Abstract: An automatic document imaging mode selection system in a system for generating electronic images of documents, in which documents may be variously fed or registered on a document imaging platen with a plural mode automatic document handling system. Various document handling and/or image scanning modes of operation are automatically selected from among various available potential such modes by accessing various document handling status information and/or sensor inputs, and coordinating that information to automatically select an optimum such mode where the operator has not specifically selected a mode. This may further include automatically determining whether or not to conduct a special pre-scan cycle before image scanning is initiated, and/or taking into consideration inferences as to whether or not the document(s) had been previously imaged. It may further or additionally include automatically changing the registration or scanning position for the particular document in accordance with the mode selection.

Abstract: A fault clearance and recovery operation in an electronic reprographic system comprises storing in memory clearance and recovery instructions for specific system faults, monitoring the system for fault occurrence and accessing displaying the stored instructions upon detection of a fault occurrence. Faults having similar recovery features are classified into buckets to facilitate the clearance and recovery operations.

Abstract: Scanner fault recovery in an electronic reprographic system includes monitoring the scanner for faults and enabling deletion from memory any images corresponding to documents involved in the scanner fault. Once the images have been deleted, refeed instructions are displayed to the operator for refeeding the documents whose images were deleted. Upon document refeed, the documents are rescanned for completion of scanning of the job.

Abstract: The automatic relocation of images in an electronic reprographic system includes scanning documents comprising a print job, converting the documents to electroniic manipulatable images, storing the images for print generation and shifting the locations of the scanned images to obtain a desired output. The location shifting can provide a one-sided cover page for a print job having a duplex arrangement, reordering to form duplex output from simplex input and joinder of a plurality of sets of documents without gap generation therebetween.

Abstract: An electronic reprographic system with a scanner for scanning the document pages of a job and converting the document images scanned to pixels, a printer for making prints of the documents from the pixels in accordance with job programming instructions, a controller section with memory for use by both the scanner and the printer simultaneously, the scanner and printer operating asynchronously with respect to one another, the ability to abort scanning of a document when either the scanner or printer runs out of allocated system memory during operation, the system memory getting reallocated in preparation of a new scan, and the document that was not completely scanned getting rescanned.

Abstract: A method and apparatus for operating an electronic reprographic system upon detection of a fault are described. Original documents of a job to be printed are scanned to provide images for storage. When scanning is interrupted, the last captured image is stored and selectively displayed. If scanning is not completed before the interruption, the system is monitored for the occurrence of a fault before scanning is resumed. The detection of a fault occurrence requires clearance of the paper path before scanning operation can be resumed. If scanning is completed, printer operation is enabled to provide image output. Partially completed scan jobs resulting from scanner interruption are saved in operator accessible memory.

Abstract: An electronic printing system having the capability of producing cover sheets for an output document set, including the ability to allow an operator to select the desired features of the cover sheets. Moreover, the system has a scanner for scanning an original document set, thereby producing an electronic representation of the set of original documents. Subsequently, the system is capable of automatically reordering the electronic images in a manner suitable to produce front and/or back cover sheets in accordance with the features previously selected. Finally, the output section of the system generates printed output of the reordered electronic images, thereby producing a completed document, including covers.

Abstract: An electronic printing system for printing bound documents such as books in which the pages of the document are placed face down in registered position on the platen of a scanner programmed to scan either or both sides of the page and provide image signals representative of the image scanned, and a printer programmable to either print both sides of a page on a common print media sheet or on separate print media sheets.

Abstract: A print job processing method and apparatus for use in an electronic reprographic system are described. Original documents of a job to be printed are scanned to provide signals for storage. The signals are transferred to a printer for print generation. An optimum time to commence printer operation is automatically determined in accordance with at least one of the number of original documents, the thickness of original documents, scanner speed, printer speed, and number of print jobs in the system. The optimum time is determined such that the maximum overlap is achieved between scanner operation and printer operation.

Abstract: An electronic printing system having a scanner for scanning documents and converting the document images to image signals, a printer for making prints from image signals, and a programmer for programming job selections including a job supplement selection, programming job supplement enabling plural smaller jobs to be combined for a print job and preventing the scanner from scanning a new job until the job supplement program is completed.

Abstract: In a system for detecting and signaling the approximate size of a set, stack or job of document sheets, especially for a recirculating type automatic document feeder with a document set stacking and feeding tray for a copier or other document imaging system, in which an electromechanical set separator system provides rough initial stack height and therefore set size or document number estimation signals from the position of the set separator arm on the stack, and in which there is also a counter for counting the number of document sheets fed out from the tray; the advance estimation of the number of documents to be fed to be imaged is significantly improved by dynamically comparing the count of the number of document sheets fed out from the tray at and with the transition in the set size estimation signal from the set separator system.