Canon imageFORMULA DR-7580 User Manual - Page 76
Paper Feed Trouble
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Chapter 6 Troubleshooting Paper Feed Trouble If the document is not fed properly or the detection functions do not work smoothly, remedy the problem by following the procedures described below. Condition Cause and remedy Condition Cause and remedy Condition Cause and remedy Paper jam has occurred. • Check the document to see if the size and thickness of the document are within the ranges supported by the scanner, and to see if the quality of the document paper is appropriate. For cautions on handling documents, see "Documents," on p.42. • Document slipping may be causing a paper feed error to occur. Scan paper one sheet at a time in the Bypass (manual) mode. (See p.50.) • Dirty or worn rollers inside the scanner cause paper jams. Clean rollers if dirty. (See p.81.) Worn rollers must be replaced. Contact your service reprensentative. The document tray does not rise and makes a "clacking" sound instead. The weight of the placed document sometimes increases due to the environment (e.g., very humid locations) in which the document is stored. If this happens, the weight of the paper will exceed the maximum allowed stacked weight even if the number of stacked sheets is below the maximum. This sometimes prevents the document tray from rising. Reduce the number of document sheets placed in the document tray, and scan the document again. Double feed error occurs even though the documents are not being double-fed (erroneous detection of double feed). If the size of the paper on which the patch code sheet is copied differs from that of the document to be scanned when the patch code sheet is used, the scanner erroneously judges this to be a double feed, and this error occurs. If this happens, turn OFF double feed detection, and scan the document again. Or, copy the patch code sheet on paper of same size as the document, and use that copy. 72