Image recording apparatus

An image recording apparatus for recording an image on an image recording medium, said image corresponding to an original image, said apparatus comprising;

• a main frame,
• an exposure unit disposed in said main frame for exposing said image recording medium to light;
• a pressure developing unit disposed in said main frame and positioned downstream of said exposure unit for pressure developing said image recording medium;
• a sheet delivery means for feeding said image recording medium to said pressure developing unit, said sheet delivery means defining a sheet path extending to said pressure developing unit;
• a branch path branching from said sheet path and directing toward the outside of said main frame for selectively discharging said image recording medium outside of said main frame without undergoing pressure developing operation, said branch path having an inlet portion;
• a detecting means positioned at said sheet delivery means for detecting at least one of posture and size of said image recording medium;
• said detecting means generating a signal indicative of at least one of said posture and said size, and,
• sheet change over means movable between first and second positions in response to said signal, said first position being directed to said branch path and said second position being directed to said pressure developing unit, said sheet change over means being positioned at said inlet portion of said branch path and movable to said first position for selectively discharging said image recording medium to said branch path when at least one of said posture and said size of said image recording medium is unduly provided.