Abstract: An electronic printing system for printing multiple up images in which image signals representative of the multiple up image may be input from a remote source or a small document bearing the multiple up image scanned to provide image signals, the size of the multiple up image determined, the size of the paper stock on which the multiple up images are to be printed determined, and the maximum number of multiple up images that can be printed without interference on the paper stock calculated for printing.

Abstract: A realtime control process for an electronic reprographic system in which background and job requests are dynamically partitioned into unique combinations of virtual machines for carrying out each request, with each virtual machine having certain system services to carry out the function provided by the virtual machine.

Abstract: A state controller for an electronic reprographic system for controlling system operations when processing requests in which the system has a plurality of hardware and software system components providing discrete services for processing requests and maintaining operation of the system, and job programming means including a display screen for inputting requests, including: a state holder for monitoring the current operating state of the system components; plural discrete job processing virtual machines with each of the virtual machines having at least one service associated with it for implementing the virtual machine; each of the services having at least one of the system components for carrying out the service; and a scheduler for managing resources of and setting priorities for the virtual machines to process the requests in an efficient manner, the scheduler being adapted to cause memory from a first one of the virtual machines to be distributed to a second one of the virtual machines when the second one

Abstract: An electronic printer 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, the scanner and printer operating asynchronously with respect to one another, and proofing of one or more pages of a job is effected by interrupting the job currently being scanned by the scanner to scan the proof job while continuing printing of other jobs in the print queue, and when the proof job is ready, interrupting the job being printed to print the proof job while resuming scanning of the interrupted job.

Abstract: A process for separating image sensor dies and the like from a wafer in which pairs of separation grooves separating each row of dies are formed in the active side of the wafer, with the tab between each groove pair being substantially equal to the width of the dicing blade, cutting a single bottom groove in the inactive side of the wafer opposite to and spanning each pair of separation grooves, and aligning the dicing blade with the midpoint of the wall of one groove in each pair of grooves so as to cut between the rows of dies. In a second embodiment, a two-pass separation process is enabled in which the tab between separation grooves is slightly larger than the width of the dicing blade, with the dicing blade first aligned with the midpoint of one separation groove to cut one row of dies from the wafer together with part of the tab, with the blade realigned with the midpoint of the other separate groove to cut a second row of dies and the remainder of the tab.

Abstract: An electronic printing system in which undefined photosites at the ends of a linear scanning array are temporarily enabled to thereby increase the width of the scan line when scanning oversized or misaligned documents provided that the unused photosites are calibrated.

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 color chip construction especially adapted for use in fabricating full width arrays in which the individual chip photosites consisting of a blue, green, and red photodiode shaped and positioned to provide a rectangular photosite with square sides that enhance butting of the color chip with other like color chips to form full width color arrays.

Abstract: A scanning array capable of both synchronous and asynchronous operation, the array, on a demand for a line of image signals, initiating a single clock cycle consisting of biasing the array sensors, integrating the image line, resetting the array output amplifiers, transferring the image signals obtained to the output amplifiers, and outputting the image signals from the amplifiers to the array output.

Abstract: A linear image sensor and process having a two stage transfer circuit in which split clock transistor actuating pulses are used to cancel cell-to-cell variations and neutralize undesired couplings of the rising edge of the charges into the transistors.

Abstract: System for saving and restoring critical files on the rigid disk of an electrostatographic reproduction machine in the event the disk becomes corrupted wherein the critical files have an identifying header sector transparent to the disk directory, with a floppy disk having a bootable locate and read utility to identify critical files and read them to blank floppy disks so as to enable the rigid disk to be rebuilt or replaced without fear of loss or destruction of the critical files, a disk rebuilding utility to rebuild the rigid disk, and a file restoration utility to restore the critical files to the rigid disk when rebuilding or replacing of the rigid disk is completed.

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: 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.

Abstract: A linear image sensor array and process having a two stage transfer circuit where in order to reduce non-uniformities between the photosite cells of the array resulting from difference transistor thresholds, the bias charge is injected between the first and second transistors of the two stage transfer circuit, with the first transistor function as a metering gate for bias charge injection.

Abstract: Touch dialogue User Interface (U.I.) for programming a reproduction machine using a touch control CRT screen with display providing a message area, U.I. state selections, and plural tabbed file folders, each file folder when opened in turn displaying a smaller card file of tabbed cards with adjacent work area, each card in the card file when opened providing a display of icons representing first level machine programming selections for touch selection, each icon when touched displaying further icons representing second level programming selections in the work area for touch selection.

Abstract: Programming conflict identification system for reproduction machines using a color touch screen for inputting programming instructions having a job review window for displaying the programming selections made, a message area in which one conflict message at a time is displayed, and an error table in which programming conflicts are queued, with programming selections corresponding to the currently displayed conflict message highlighted by black text on an amber background, and remaining conflicts highlighted by amber text on a white background.

Abstract: An electronic printing system for scanning signature pages for signature jobs in which the pages of the document are placed face down in registered position on the platen of a scanner such that the signature images are side by side in the fast scan direction in order to enable an array to view both images concurrently on relative movement between the array and the platen in a slow scan direction.

Abstract: An automatic xerographic set up and monitoring process for a multi-mode electrostatographic machine in which a corona charge intercept value is obtained and used to optimally set corona charging levels for different modes, optimum flash exposure levels obtained, ID lamp intensity correlated with flash exposure levels, and xerographic process parameters set for each different mode.

Abstract: An asynchronous document scanner with one dimensional scanning array, a movable scan carriage supporting the array for scanning movement, a variable interpolator for interpolating partial lines of image signals from the array with preceding lines of image signals to provide a composite image signal lines, and a control responsive to the timing of the start integration signal to the array to vary the interpolation coefficient of the interpolator.

Abstract: A halftone conversion system for converting digital pixels to binary pixels in which individual matrices in a memory having progressively changing x, y matrices of binary pixels are addressed by an address composed of a block of x pixels including the pixel being processed, a block of y lines including the line containing the pixel being processed, and the digital value of the pixel being processed, the pixel located at the x, y coordinates of the addressed matrix providing the binary pixel output.