Patent ID: 9030715
Filing Date: 2015-05-12
Classification: H04N

Abstract:
1. A sheet conveyance device comprising: a conveyance unit configured to convey a sheet; a detection unit configured to detect a front end and a rear end of the sheet conveyed by said conveyance unit; a measurement unit configured to measure a sheet length in a conveyance direction based on a detection result of said detection unit; an acquisition unit configured to acquire a reference length of the sheet in the conveyance direction; a computation unit configured to compute a correction value that is used to correct a length measured by said measurement unit based on a measured value of the sheet length in the conveyance direction measured by said measurement unit and the reference length acquired by said acquisition unit in a correction mode in which the length measured by said measurement unit is corrected; a storage unit configured to store the correction value computed by said computation unit; a determination unit configured to determine a sheet length corrected based on the correction value stored in said storage unit and the length measured by said measurement unit at the time of conveyance of a sheet in a mode other than the correction mode; and a selection unit configured to manually select a sheet size of a correction target in the correction mode, wherein said selection unit has a numeric input unit for manually inputting the sheet length with a numeric value.