Image forming apparatus

An image forming apparatus comprising:

• a main body of the image forming apparatus;
• an opening/closing door openable/closable with respect to the main body;
• a locking mechanism that is provided on the main body and locks the opening/closing door to an engagement position, the locking mechanism having a rotatable engaged member and an urging member that urges the engaged member;
• and
• an engagement member that is provided on the opening/closing door and engages the engaged member,
• wherein the engaged member is pressed and rotated by the engagement member when the opening/closing door is closed with respect to the main body,
• wherein an urging force acting on the engaged member from the urging member is converted from a first urging force to press out the engagement member to a second urging force to draw the engagement member into the engagement position when the engaged member is pressed and rotated by the engagement member,
• wherein the engagement member has a contacted region and the engaged member has a contact region that comes in contact with the contacted region, and
• wherein the contacted region elastically deforms when the contact region comes in contact with the contacted region.