Abstract: An image forming apparatus includes a photosensitive drum, a light exposure device, a developing device, a fixing unit disposed opposite to the light exposure device relative to the developing device, a sheet supply tray disposed below the developing device, an ejection tray disposed above the developing device and having a sheet receiving surface inclined downward, relative to a horizontal direction, toward the charger, and a sheet conveying path through which a sheet is conveyed from the sheet supply tray to the ejection tray. A lowest end portion of the sheet receiving surface is disposed below an upper end of the charger in the vertical direction. The charger is disposed opposite to the developing device relative to the lowest end portion of the sheet receiving surface.

Abstract: An ink ejection device includes a head section having a plurality of nozzles and ejecting a plurality of types of inks through the nozzles, and an ink supply section supplying the plurality of types of inks to the head section. The head section has a plurality of supply ports which are arranged in a scanning direction and to which the plurality of types of inks are supplied. The ink supply section includes a plurality of ink chambers which respectively contain the plurality of types of inks and are disposed to overlap one another in the up-down direction, a plurality of connection passages connecting the plurality of supply ports to the plurality of ink chambers containing the inks to be supplied to the supply ports, and a plurality of air discharge passages respectively connected to the plurality of ink chambers.

Abstract: A wireless communication system is provided. The wireless communication system includes a wireless communication adapter configured for wireless communication, a storage device configured to store setting information for the wireless communication adapter, and a device that has an interface configured to be connected to the storage device and the wireless communication adapter. Further, the device includes a controller configured to obtain the setting information from the storage device if the storage device is connected to the interface of the device, and to apply the setting information to the wireless communication adapter if the wireless communication adapter is connected to the interface of the device. The wireless communication adapter performs wireless communication in accordance with the setting information after the setting information is applied to the wireless communication adapter.