Transport device, fixing device, and image forming apparatus

A transport device comprising:

• a first rotating body including a shaft portion, a cylindrical portion on an outer periphery of the shaft portion, and a recessed portion in an outer surface of the cylindrical portion;
• a second rotating body configured to move toward and away from the first rotating body, the second rotating body being configured to rotate while being in contact with an outer surface of the first rotating body and nipping a recording medium between the second rotating body and the first rotating body;
• a transport unit including a holding portion configured to hold a front end section of the recording medium, the transport unit being configured to transport the recording medium by moving the holding portion in a rotation direction of the first rotating body while the holding portion is in the recessed portion;
• and
• a moving mechanism including a cam portion on a side surface of the cylindrical portion and a contact portion that is connected to the second rotating body and that is configured to come into contact with the cam portion to separate the second rotating body from the first rotating body before the second rotating body enters the recessed portion, wherein
• an attachment member including the cam portion is attached to the side surface of the cylindrical portion in a replaceable manner.

A transport device comprising:

• a first rotating body including a shaft portion, a cylindrical portion on an outer periphery of the shaft portion, and a recessed portion in an outer surface of the cylindrical portion;
• a second rotating body configured to move toward and away from the first rotating body, the second rotating body being configured to rotate while being in contact with an outer surface of the first rotating body and nipping a recording medium between the second rotating body and the first rotating body;
• a transport unit including a holding portion configured to hold a front end section of the recording medium, the transport unit being configured to transport the recording medium by moving the holding portion in a rotation direction of the first rotating body while the holding portion is in the recessed portion;
• and
• a moving mechanism including a cam portion on a side surface of the cylindrical portion and a contact portion that is connected to the second rotating body and that is configured to come into contact with the cam portion to separate the second rotating body from the first rotating body before the second rotating body enters the recessed portion, wherein
• the cam portion is on each side surface of the cylindrical portion, and
• the contact portion is connected to each side of the second rotating body in an axial direction of the first rotating body.