Abstract:
An image data output processing apparatus of the present invention, in a case where a reference document is duplex, causes a storage process section, in a storage mode, to store, at the time of storage, a DocID indicative of the reference document so as to correspond to an ID indicative of respective document images on front and back sides of the reference document. In a matching mode, in a case where a matching document is duplex, (i) an ID similar to that of the reference document and (ii) a corresponding DocID are extracted for each of the document images on the front side and the back side of the matching document, so as to create candidate lists for front and back sides of the matching document. If first candidates in the candidate lists correspond to an identical DocID, it is determined that the images are similar to each other, and if the first candidates do not correspond to the identical DocID, a determination result is corrected to a reference document that corresponds to the identical DocID. Thus, it is possible to realize an image data output process that can reliably control an output process, in the case where input image data is of a duplex document and includes a document image in which its output process is regulated.
Abstract:
An apparatus and method for copying a document in an image forming apparatus includes receiving a request to copy a document, scanning the document to form image data corresponding to the document, printing the document using the image data of the document, and storing the image data of the document in a storage area of the image forming apparatus. The document is reprinted using the image data stored in the storage area of the image forming apparatus if a request is received for at least one additional copy of the document. In addition, the image data of the document is deleted from the storage area if a predetermined event is detected after printing the document.
Abstract:
In an image forming apparatus having storing means for storing image data to be composited with received image data, means for compositing the image data with the received image data, means for forming an image based on the resulting composite image data, and determining means for determining whether or not image formation is possible, the image formation based on the image data is executed or stopped according to the determination result of the determining means.
Abstract:
The footprint of a document scanning unit such as a copier, facsimile machine or document scanner or combinations thereof is reduced by causing overlap of the leading and trailing edges of long document sheets to be scanned in the document delivery roller system downstream of the scanning station. Differential slippage of the overlapping ends between a drive roller and a pinch roller is provided in a first embodiment. A second embodiment uses a moveable pinch roller in the document delivery system to selectively open and close a gap to permit slippage of the leading and trailing edges of the document. A third embodiment uses three document delivery rollers defining two spaced nips in which the leading and trailing edges of a long document are simultaneously present and a crenellated roller surface to guide the leading edge of the document to the desired nip in the delivery system.
Abstract:
The present invention relates an image reading device and a sheet feeding method for feeding sheets or documents to the image reading device. In the device and method of the present invention, a controller which is associated with at least one of a sheet feeder or a feed sensor, controls an engagement and disengagement of the sheet feeder based on a comparison of a length of a first document fed into the image reading device with subsequent documents. With the device of the present invention, it is possible to increase document throughput rates by controlling the gap between documents.
Abstract:
An inverting document feeder feeds a document from the document tray to the position where the image reader reads the document, turns the document over, and then reads the second side. Document size determination sensors detects the document passing through, and determines the size of the document from detections signals of the width of the document and the time elapsed between the detection of the top end of the document and the detection of the bottom end of the document. When the top end of the document reaches the document reading position, image reading is started by a scanner, regardless of whether the document size has been determined or not. The image data thus obtained are written into and read out of a memory unit in a specified order. Even if the document reading has not been finished at the time of determining the document size, feeding of a copying sheet of a size corresponding to the document size is started, and the image data stored in the memory unit are read out to form an image on the copying sheet.
Abstract:
A document feeder is formed of a reading section for reading an original document while the original document is being transferred; a transfer roller having a transfer path therearound with an inlet located near the reading section and an exit so that the original document is transferred from the inlet to the exit through the reading section; and first and second rollers pressed against the transfer roller. The first and second rollers are located respectively in upstream and down stream sides of the transfer path relative to the reading section. A guide member is overlapped with the transfer roller at one end so that the original document from the second roller is guided from the one end to the other end.
Abstract:
An auto document feeder (ADF) adjustment mode is set from an operation panel and a start key is pressed. An original is conveyed to an image reading unit by an original conveying apparatus, a scanner reads an original image and image data is generated. The image data is stored into image memory. By searching the image data stored in the image memory, two vertexes are detected. From the two vertexes, inclination to the standard original reading position is calculated, and also, dislocation in the main scan and subscan directions when the inclination is corrected is calculated. The inclination and the dislocation in the main scan direction are converted into real adjustment amounts and displayed on the operation panel. The dislocation in the subscan direction is sent to a CPU and then the CPU controls the original conveying apparatus so as to optimize the original-conveying distance.
Abstract:
A document feeder of the invention is formed of a platen for reading and scanning original documents, a document tray for placing the original documents to be processed situated above the platen, and an ejection tray for receiving the original documents after being processed situated between the platen and the document tray spaced apart from each other in a vertical direction. A transfer path is formed for transferring the original documents from the document tray to the ejection tray through a reading position on the platen. An exit of the document tray, an entrance of the ejection tray and the reading position on the platen are arranged laterally in this order above the platen with a predetermined distance spaced apart from each other. A separating portion for separating the original documents one by one is situated between the exit of the document tray and the entrance of the ejection tray to be laterally spaced apart from each other. The document feeder is made compact in size.
Abstract:
An image forming apparatus having a preliminary scanning function which is automated by detecting a selection of at least one of an automatic color selecting mode and a letter and photo mixed mode, an existence of an original document on a contact glass, and a movement of an original platen cover from an open state to a closed state. During performing the preliminary scanning function, a depression of a copy start button is not ignored but accepted, and therefore, when the copy start button is depressed, a scanning process for forming an image starts automatically upon a completion of the preliminary scanning. In addition, various instructions, such as a numeric input for instructing, as an example, a number of copies are accepted. The start of preliminary scanning may be selected by operator preference to start when detecting existence of an original document or when detecting an instruction input by the copy start key. The distance to be scanned during a preliminary scanning process and during the scanning process is controlled based upon feedback signals from an original document size detect sensor so as to minimize the scanning area in accordance with the size of the original document.