Image forming apparatus including a filter for collect foreign substances in air sucked into at least one intake

An image forming apparatus comprising:

• a heating device configured to heat a recording medium having an image on one side of the recording medium;
• a recording medium ejector configured to eject the recording medium with the one side facing downward;
• a duct including a first intake configured to face the one side of the recording medium conveyed from the heating device to the recording medium ejector;
• and
• a filter configured to collect at least one of fine particles or ultrafine particles in air sucked into the first intake, wherein
• the duct further includes second and third intakes facing both end portions of the heating device, and
• each of the end portions of the heating device has a length of one third of a total length of the heating device in a width direction of the recording medium orthogonal to a sheet conveyance direction.

An image forming apparatus comprising:

• a heating device configured to heat a recording medium having an image on one side of the recording medium;
• a recording medium ejector configured to eject the recording medium with the one side facing downward;
• a recording medium tray on which the recording medium ejected by the recording medium ejector is stacked;
• an outer wall including a first intake, the first intake being open toward the recording medium tray and at a first position below the recording medium ejector, the first position being a position at which a maximum amount of recording media placeable on the recording medium tray does not cover at least a part of the first intake;
• and
• a filter configured to collect foreign substances in air sucked into the first intake;
• a fan configured to suck the air into the first intake;
• a duct configured to guide the air from the first intake to an exhaust port;
• the exhaust port, the fan, and the filter being closer to one end of the duct in a width direction of the recording medium orthogonal to a sheet conveyance direction than to a center of the duct in the width direction orthogonal to the sheet conveyance direction;
• the outer wall having a plurality of intakes including the first intake, the plurality of intakes arranged along the width direction of the recording medium orthogonal to the sheet conveyance direction;
• and
• the duct including a partition extending from a portion between the plurality of intakes toward the exhaust port.