Document conveying device, image reading device, and image forming apparatus

A document conveying device comprising:

• a document table on which a stack of sheets composed of a plurality of documents is placed;
• a rotating shaft member detachably provided on a main body of the document conveying device and rotated by rotary driving force transmitted from a driving source;
• a feeding member configured to contact and feed a topmost sheet of the stack of sheets placed on the document table, the feeding member being attached to the rotating shaft member via a driving force transmitting member;
• a separating unit configured to separate the topmost sheet from one or more sheets that are fed together with the topmost sheet, the separating unit being attached to the rotating shaft member;
• a plurality of rotating members rotatably attached to the rotating shaft member;
• a holding member configured to hold the feeding member and the driving force transmitting member, the holding member being one of the rotating members and detachably attached to the rotating shaft member;
• and
• a rotating member position restricting unit configured to restrict a position of the rotating members other than the holding member to a given predetermined position with reference to a position of the holding member.