Image reading apparatus and image forming apparatus

An image forming apparatus comprising:

• an image forming unit that forms an image on a recording member;
• and
• an image reading unit that reads an image of a document while conveying the document, wherein
• the image forming apparatus forms an image read by the image reading unit on the recording member by the image forming unit,
• the image reading apparatus comprises:
• a transmitting glass;
• and
• a step member that is located upstream of a reading position, at which an image of a conveyed document is read by a reading unit via a transmitting glass, in a conveying direction of the document, and has a document guiding surface at a position away from a surface of a transmitting glass by a prescribed distance and forms a step between the document guiding surface and the transmitting glass, and
• the step member is provided with a protrusion protruding downstream in the conveying direction of the document to form space between the transmitting glass and a downstream part of the step member in the conveying direction of the document.