Image reading device and image forming system

Abstract

An image reading device reads an image on a sheet conveyed along a conveyance path. The image reding device includes a reading sensor, a lifting device, and a conveyance guide. The reading sensor optically reads the image. The lifting device lifts and lowers the reading sensor to a reading height which is close to the conveyance path and at which the image can be read and a non-reading height which is separated from the conveyance path more upwardly than the reading height. The conveyance guide is disposed above the conveyance path and guides the sheet to an image reading position by the reading sensor. The conveyance guide is pushed down by the reading sensor lowered to the reading height, and is displaced from a retracted posture separated upward from the conveyance path with a predetermined interval to a guiding posture closer to the conveyance path than the retracted posture.

Dependencies are inferred from the claim text.