Image forming apparatus

An image forming apparatus comprising:

• a body housing having an opening;
• an opening and closing unit which can be opened and closed in the opening;
• an image carrier which is provided in the body housing, and carries a toner image;
• a transfer roller which is provided in the opening and closing unit, comes into contact with the image carrier when the opening and closing unit is closed, and separates from the image carrier when the opening and closing unit is opened;
• a power supply line which supplies power to the transfer roller;
• a power supply line side contact which is provided at an end portion of the power supply line;
• and
• a transfer roller side contact which is provided in the transfer roller, comes into contact with the power supply line side contact when the opening and closing unit is closed, and separates from the power supply line side contact when the opening and closing unit is opened, wherein
• the power supply line includes:
• a first contact, and
• a second contact which can be in contact with the first contact and separate from the first contact,
• the opening and closing unit includes a contact portion which comes into contact with the second contact and moves the second contact, and
• the contact portion makes the second contact come into contact with the first contact when the opening and closing unit is closed, and makes the second contact separate from the first contact when the opening and closing unit is opened.