SHEET CONVEYANCE APPARATUS, IMAGE READING APPARATUS, AND IMAGE FORMING APPARATUS

A sheet conveyance apparatus includes a stacking portion, a feeding portion, first and second detection units, a controller, and a setting unit. The feeding portion separates and feeds sheets stacked on the stacking portion. Of a sheet fed by the feeding portion, the first detection unit detects skewing, and the second detection unit detects flip-up. The controller stops feeding where skewing of the sheet is detected by the first detection unit and where flip-up of the sheet is detected by the second detection unit. The setting unit sets a different-width mixed document mode in which a plurality of sheets having different widths is stacked on the stacking portion. In a case where the different-width mixed document mode is set by the setting unit, the controller does not stop feeding based on skewing detected by the first detection unit but stops feeding based on flip-up detected by the second detection unit.