Konica Minolta Fujitsu fi-6800 Operating Guide - Page 44

Chapter 2 How to Load Documents Conditions for Multifeed Detection Multifeed is an error when two or more sheets are fed through the ADF at once. It is also called a "multifeed" when a different document length is detected. Multifeed detection is performed by either checking the overlapping of documents, length of the documents, or the combination of both. The following conditions are required for an accurate detection. Detection by overlapping z Load documents of the same thickness onto the hopper. z Paper weight: 20 to 209.3 g/m2 (5.5 to 56.1 lb) / 0.025 to 0.25 mm (0.001 to 0.010 in.) z Do not punch holes within 35 mm (1.38 in.) of the vertical lines in the left, center and right of the document. See Fig.1. z Do not attach other documents within 35 mm (1.38 in.) of the vertical lines in the left, center and right of the document. See Fig.1. Detection by length z Load documents of the same length onto the hopper. z Variance in document lengths: 1% or less z Do not punch holes within 35 mm (1.38 in.) over the vertical center line of the document. See Fig. 2. Detection by overlapping and length z Load documents of the same thickness and the same length onto the hopper. z Paper weight: 20 to 209.3 g/m2 (5.5 to 56.1 lb) / 0.025 to 0.25 mm (0.001 to 0.010 in.) z Variance in document lengths: 1% or less z Do not punch holes within 35 mm (1.38 in.) of the vertical lines in the left, center and right of the document. See Fig.1. z Do not attach other documents within 35 mm (1.38 in.) of the vertical lines in the left, center and right of the document. See Fig.1. The above condition applies when the document is set to the center of the pick roller width. Fig.1 Reference point 35 35 35 Leading edge Feeding direction Front side Fig.2 Reference point 60 60 Bottom of paper Center of document (Unit : mm) 35 Leading edge Front side Feeding direction Bottom of paper Center of document (Unit : mm) z The rate of multifeed detection may drop with some documents. Multifeed cannot be detected in the area of 15 mm from the leading edge of the document. z The areas in Fig.1 can be changed in the Software Operation Panel. For more details, refer to "9.5 Settings Related to Multifeed Detection" (page 207). TOP Contents Index Introduction Scanner Overview How to Load Documents Configuring the Scan Settings How to Use the Operator Panel Various Ways to Scan Daily Care Replacing Consumables Troubleshooting Operational Settings Appendix Glossary 44