Droplet ejection device and image forming apparatus including the droplet ejection device
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United States of America Patent
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Sep 1, 2015
Grant Date -
Jan 16, 2014
app pub date -
Jul 9, 2013
filing date -
Jul 10, 2012
priority date (Note) -
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Abstract
A droplet ejection device includes a recording head having a nozzle face with nozzles to eject droplets, a maintenance assembly including a cap to seal the nozzle face to form a sealed space therein and a wiper to wipe the nozzle face, a droplet suction channel connected to the cap to collect droplets sucked from the nozzles, and an air release channel connected to the cap to introduce air to return the sealed space to atmospheric pressure. The suction channel and the release channel are communicable with the sealed space to simultaneously perform collection of the droplets sucked from the nozzles and introduction of air into the cap. The suction channel has a flow rate greater than the release channel. When the droplets are sucked from the nozzles into the suction channel, air is introduced from the release channel at a flow rate lower than that of the suction channel.
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