Image forming apparatus

An image forming apparatus comprising:

• an image forming unit configured to form a sheet image on a sheet;
• an image reading unit configured to read a document image on a document, wherein the image reading unit is disposed on the image forming unit;
• a first control circuit board that is mounted on the image reading unit;
• a second control circuit board that is mounted on the image forming unit;
• a flexible flat cable configured to transfer image data from the first control circuit board to the second control circuit board, wherein the flexible flat cable has one end connected to a first connector mounted on the first control circuit board and another end connected to a second connector mounted on the second control circuit board;
• a slit configured to be formed into which the flexible flat cable passes through, wherein the slit is formed in the image forming unit;
• and
• a regulating member configured to regulate a length of the flexible flat cable between the slit and the second connector, wherein the regulating member is attached at a predetermined position of the flexible flat cable and abuts against the image forming unit.