Image forming apparatus capable of reversing sheet conveyance direction

An image forming apparatus comprising:

• a housing case housing a sheet;
• a discharge tray configured to discharge the sheet;
• a first conveying path configured to connect the discharge tray from the housing case;
• an image forming unit configured to form an image on the sheet conveyed along the first conveying path;
• a second conveying path configured to branch from the first conveying path at a branch position provided downstream of the image forming unit in a conveyance direction of the sheet;
• a third conveying path configured to connect the second conveying path and the first conveying path and convey the sheet with an image formed on a first surface from the second conveying path to the first conveying path;
• a reverse roller configured to pull in the sheet from the first conveying path to the second conveying path by conveying the sheet in a first direction and deliver the sheet from the second conveying path to the third conveying path by reversing the conveyance direction of the sheet from the first direction to a second direction in order to change a surface where an image is formed by the image forming unit from the first surface to a second surface of the sheet;
• a motor configured to drive the reverse roller;
• a clutch configured to transmit drive power of the motor to the reverse roller and control a rotation direction of the reverse roller;
• a controller configured to control a reverse timing of the reverse roller according to an actual length of the sheet;
• and
• a guidance member configured to guide the sheet where an image is formed on the first surface from the first conveying path to the second conveying path and guide the sheet guided to the second conveying path to the third conveying path,
• wherein the clutch is further configured to control the guidance member.