Sheet discharging device and image forming apparatus incorporating same

摘要

A sheet discharging device, which is included in an image forming apparatus, includes a sheet discharging tray, a sheet discharging roller pair, a full state detection feeler pivotably supported and including a center feeler to measure a height of a center part of the recording medium and an edge feeler to measure a height of an edge part of the recording medium, and a full state detection sensor to detect a position of the full state detection feeler. A distance between a leading edge of the center feeler and an upper surface of the sheet discharging tray is smaller than a distance between a leading edge of the edge feeler and the upper surface thereof. The leading edge of the edge feeler is located closer to the upper surface of the sheet discharging tray than a common tangential line of the sheet discharging roller pair.

主权项

1. A sheet discharging device comprising:
a sheet discharging tray to which a recording medium having an image formed thereon is discharged; a sheet discharging roller pair to discharge the recording medium conveyed by a sheet conveying member disposed upstream from the sheet discharging roller pair to the sheet discharging tray; a full state detection feeler pivotably supported to measure a height of a stack of recording media including the recording medium on the sheet discharging tray, the full state detection feeler comprising
a center feeler to measure a height of a center part of a flat surface of the recording medium in a direction perpendicular to a sheet conveying direction, andan edge feeler to measure a height of an edge part of the flat surface of the recording medium in the direction perpendicular to the sheet conveying direction; and a full state detection sensor to detect a position of the full state detection feeler to determine whether the sheet discharging tray is in a full state, wherein a distance between a leading edge of the center feeler and an upper surface of the sheet discharging tray is smaller than a distance between a leading edge of the edge feeler and the upper surface of the sheet discharging tray, wherein the leading edge of the edge feeler is located closer to the upper surface of the sheet discharging tray than a common tangential line of the sheet discharging roller pair.