SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

A sheet feeding device includes a sensor, a roller, a support, circuitry, and a spool. The sensor detects a step at a leading end of a sheet roll. The roller and the sensor are disposed at different positions in a circumferential direction of the sheet roll. The support supports the sensor and the roller to bring the sensor and the roller into contact with the sheet roll. The circuitry acquires a sensor signal. The spool is insertable through a sheet tube of the sheet roll to rotate the sheet roll. The sensor and the roller face an axial center of the spool. The support is pivotable within a range in which the sensor does not contact the spool. The circuitry detects first and second inclinations of the sensor signal when the leading end passes by the roller and the sensor, respectively, to determine whether the leading end is present.