| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet conveyance apparatus, an image processing apparatus, and a sheet size determination method, which can improve determination accuracy of a size of a sheet loaded on a sheet loading part.SOLUTION: An image processing apparatus comprises a sheet loading part and a guide member for restricting a position of a sheet loaded on the sheet loading part in a width direction. The image processing apparatus can perform the following: acquiring electric signals corresponding to a position of the guide member in the sheet loading part at a first interval (S2); determining whether or not differences between values of the acquired electric signals and a predetermined threshold value exceeds a first reference value (S3); determining a size of the sheet according to the values of the electric signal when all the differences between the values of the electric signal and the threshold value exceed the first reference value (Yes in S3, S5); and determining the size of the sheet according to an average value of a plurality of the electric signals acquired at the first interval when the difference between any one of the values of the electric signals and the threshold value is equal to or less than the first reference value (No in S3, S34).SELECTED DRAWING: Figure 5 |
