Image forming apparatus

An image forming apparatus comprising:

• an image forming unit having a front side and a back side and including a stacking tray on which a sheet is to be stacked, a conveying roller configured to convey the sheet stacked on the stacking tray, a fixing unit configured to fix a toner image by heat on the sheet conveyed by the conveying roller, a discharging roller configured to discharge the sheet on which the image has formed by the image forming unit, wherein the sheet is discharged in a first direction and the first direction is from the back side of the image forming unit to the front side of the image forming unit, by the discharging roller;
• a discharging tray on which the sheet discharged by the discharging roller is stacked, wherein the discharging tray is supported by the image forming unit and is rotatable about a first axis with respect to the image forming unit to provide access inside the image forming unit;
• and
• a reading unit supported by the image forming unit and rotatable about a second axis with respect to the image forming unit, wherein the reading unit includes a conveying unit configured to convey a document, a transparent member, and a reading element configured to read the document conveyed by the conveying unit through the transparent member, wherein a direction in which the document is discharged by the conveying unit intersects with the first direction,
• wherein, in the first direction, a distance between a position of a center of the image forming unit and the second axis is shorter than a distance between the center position of the image forming unit and the first axis,
• wherein, in the first direction, a distance between a rear surface of the reading unit and the center position of the image forming unit is shorter than a distance between a rear surface of the image forming unit and the center position of the image forming unit,
• wherein an opening is disposed on a top surface of the image forming unit between the rear surface of the reading unit and the rear surface of the image forming unit in the first direction,
• wherein the fixing unit is disposed below the opening in a vertical direction, wherein the opening on the top surface of the image forming unit is an opening from which the heat of the fixing unit is released to outside of the image forming unit, and
• wherein, with respect to a second direction along the first axis, an end portion, closer to the opening in the end portions of the first axis, locates between the opening and an end portion closer to the opening in the end portions of the second axis.