Abstract: An image forming apparatus orientatable in either a first position or a second position, the second position being different from the first position in inclination with respect to a horizontal plane, including a fixing unit including a fixing roller and a pressurizing roller, pressing the pressurizing roller against a surface of the fixing roller to form a fixing nip, and thermally fixing a toner image on a recording sheet passing through the fixing nip; at least one temperature sensor detecting surface temperature of the fixing roller without contact with the surface; a heater heating the fixing roller; and a controller controlling the heater according to the surface temperature, thereby controlling the surface temperature, wherein a heat sensitive portion of the temperature sensor is located above a horizontal plane passing through a rotational axis of the fixing roller regardless of the orientation of the image forming apparatus.

Abstract: An image forming apparatus including: a fixing unit including a heating rotational body, and configured to perform heat-fixing by putting a sheet having an unfixed-image formed thereon in contact with the heating rotational body; and a mechanism including a plate-like water droplet guiding member and a condensation collection container, and configured to receive water droplets at an upper surface of the water droplet guiding member, guide the water droplets towards the condensation collection container, and collect the water droplets at the condensation collection container, the water droplets generated above the fixing unit by condensation of water vapor that rises from the sheet during the heat-fixing and falling therefrom. When viewing the image forming apparatus from above in a vertical direction, the condensation collection container is disposed outside a sheet passing region in a sheet width direction.

Abstract: An image forming apparatus orientatable in either a first position or a second position, the second position being different from the first position in inclination with respect to a horizontal plane, comprising: a fixing device including a heating roller and a pressurizing member, pressing the pressurizing member against a surface of the heating roller to form a fixing nip, and thermally fixing a toner image on a recording sheet passing through the fixing nip; at least one temperature detector detecting surface temperature of the heating roller without contact with the surface; a heater heating the heating roller; and a controller controlling the heater according to the surface temperature, thereby controlling the surface temperature, wherein a detection point of the temperature detector is located above a horizontal plane passing through a rotational axis of the heating roller regardless of the orientation of the image forming apparatus.

Abstract: An image forming apparatus comprising: a fixing unit comprising a heating rotational body, and configured to perform heat-fixing by putting a sheet having an unfixed-image formed thereon in contact with the heating rotational body; and a mechanism comprising a plate-like water droplet guiding member and a condensation collection container, and configured to receive water droplets at an upper surface of the water droplet guiding member, guide the water droplets towards the condensation collection container, and collect the water droplets at the condensation collection container, the water droplets generated above the fixing unit by condensation of water vapor that rises from the sheet during the heat-fixing and falling therefrom. When viewing the image forming apparatus from above in a vertical direction, the condensation collection container is disposed outside a sheet passing region in a sheet width direction.