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US 10,162,283 B2Granted
Image forming apparatus
AssigneeRicoh Company, Ltd.
InventorsHiroyuki Shimada, Toshiyuki Kabata, Takashi Fujita, Hiroshi Seo
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Abstract
An image forming apparatus includes an exhaust duct to guide air inside the image forming apparatus to an outside of the image forming apparatus. A positive ion generator emits a positive ion into the exhaust duct. A negative ion generator emits a negative ion into the exhaust duct. The negative ion generator is shifted from the positive ion generator in one of an air flow direction of the air moving inside the exhaust duct and a direction perpendicular to the air flow direction.
Claims16
An image forming apparatus comprising:
- an exhaust duct to guide air inside the image forming apparatus to an outside of the image forming apparatus;
- a positive ion generator to emit a positive ion into the exhaust duct;
- a negative ion generator to emit a negative ion into the exhaust duct, the negative ion generator being shifted from the positive ion generator in one of an air flow direction of the air moving inside the exhaust duct and a direction perpendicular to the air flow direction;
- and
- a counter electrode pair disposed downstream from the positive ion generator and the negative ion generator in the air flow direction,
- wherein the counter electrode pair includes a positive electrode applied with a positive voltage, and a negative electrode applied with a negative voltage and disposed opposite the positive electrode,
- wherein the exhaust duct includes a downstream wall disposed wall disposed downstream from the positive ion generator and the negative ion generator in the airflow direction, and
- wherein the downstream wall includes a first wall mounting the positive electrode, and a second wall mounting the negative electrode.
5 more elements
Dependencies are inferred from the claim text.