The present disclosure relates to a sheet conveying device for conveying a sheet member, and an image reading device and an image forming apparatus including the sheet conveying device including a conveying roller configured to be rotatable in a forward rotational direction and a reverse rotational direction.
The image reading device such as a scanner is provided with an automatic document feeder (hereinafter referred to as “ADF”) for automatically conveying a document sheet set in a sheet feeding tray. The ADF includes a feeding roller for feeding inside the document sheet set in the sheet feeding tray, and a discharging roller for discharging the document sheet to an external discharge tray. The document sheet conveyed to a reading position by the feeding roller is discharged to the discharge tray by the discharging roller.
In an image reading device including the ADF as described above, conventionally, there is known a stopper member for preventing the document sheet in the discharge tray from being drawn into the discharging roller, when the discharging roller is rotated in a rotational direction opposite to that at a time of discharge. The stopper member is configured to prevent a rear end of the document sheet from coming in contact with a surface of the discharging roller for discharging the document sheet.