Image forming apparatus

An image forming apparatus comprising:

• a feeder configured to feed a recording medium;
• an image forming unit having a maximum sheet feed width corresponding to a longer side length of a maximum size recording medium to be accommodated in the feeder, and disposed above the feeder in such a manner as to allow the maximum size recording medium to enter the image forming unit with a longer side first;
• an image reader disposed above the image forming unit in such a manner as to allow a longer side direction of a maximum size document to be placed on a platen to be orthogonal to (i) a sheet feed width direction of the image forming unit and (ii) a longer side direction of the feeder;
• and
• a discharged sheet reservoir where the printed recording medium is discharged, said discharged sheet reservoir being disposed between the image reader and the image forming unit,
• wherein the feeder comprises a sheet feed cassette shaped such that a longer side direction is disposed along a direction orthogonal to a conveyance direction of a recording medium, and the longer side direction of the sheet feed cassette is disposed along a front-rear direction of a main body,
• wherein the image reader has a front-rear direction length shorter than that of the feeder incorporating the sheet feed cassette therein, and
• wherein in a plan view, a first open space is formed between a front-rear direction front side of the image reader and a front-rear direction front side of the feeder, and an operation panel with a sheet feed direction width smaller than the width of the image reader is arranged in the first open space.