| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet conveyance device, an image formation apparatus and a sheet number calculation method which can calculate the number of sheets with indeterminate size.SOLUTION: An image formation device comprises: a sheet conveyance part which conveys a sheet; and a sheet loading part which is loaded with the sheets conveyed by the sheet conveyance part, detects the weight of the sheets loaded in the sheet loading part (a step S21), detects the size of the sheets loaded in the sheet loading part (a step S22), acquires the basis weight of the sheets loaded in the sheet loading part (a step S23), and calculates the number of sheets loaded in the sheet loading part on the basis of the detected weight of the sheets, the detected size of the sheets and the acquired basis weight of the sheets (a step S24).SELECTED DRAWING: Figure 5 |
