Fujitsu FI 4220C Operating Guide - Page 115
Multi feed Detection Conditions, Detection by Document Thickness
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6.5 Multi feed Detection Conditions 6.5 Multi feed Detection Conditions There are three multi feed detection modes: document thickness, document length, and both docu- ment thickness and length. The following conditions must be satisfied in each of these detection modes. ■ Detection by Document Thickness 6 ADF AND PAPER SPECIFICATION Sheets of the same thickness shall be set in the ADF at a time. • Document thickness: 0.065 to 0.15mm • Printed area: 12% or less • No black printed areas are allowed at the center area (26 x 10mm) at the leading edge of the document. • Punched holes are not allowed within 35mm of the vertical center line of the document. • The deviation in the amount of the light transmitted through background areas must not be less than 10%. ■ Detection by Document Length Sheets of the same length shall be set in the ADF at a time. • Document length deviation: 1% or less • Punched holes are not allowed within 35mm of the vertical center line of the document. ■ Detection by Document Thickness and Length Sheets of the same thickness and length shall be set in the ADF at a time. • Document thickness: 0.065 to 0.15mm • Document length deviation: 1% or less • Printed area: 12% or less • No black printed areas are allowed at the center area (26 x 10mm) at the leading edge of the document. • Punched holes are not allowed within 35mm of the vertical center line of the document. • The deviation in the amount of the light transmitted through background areas must not be less than 10%. fi-4220C2 Image Scanner Operator's Guide 99