Patent ID: 9310764
Filing Date: 2016-04-12
CPC Classification: G03G,H04N

Claim Text:
1. An image forming apparatus comprising: an image forming portion configured to form an image on a recording material; a first housing configured to cover the image forming portion; an image heating device configured to heat the image formed on the recording material; a second housing, disposed to face the first housing outside of the first housing, configured to cover the image heating device; a first opening, provided on the first housing, configured to convey the recording material from the first housing to the second housing; a second opening provided on the second housing so as to face the first opening, configured to convey the recording material from the first housing to the second housing; a first air blowing device including at least one of a first air supply device that is provided in the first housing so as to supply air into the first housing from the outside of the first housing and a first air discharge device that is provided in the first housing so as to discharge air from an inside of the first housing to the outside; and a second air blowing device including at least one of a second air supply device that is provided in the second housing so as to supply air into the second housing from the outside of the second housing and a second air discharge device that is provided in the second housing so as to discharge air from an inside of the second housing to the outside, wherein the first housing and the second housing communicate with the atmosphere through the first and second openings, respectively, and wherein when the absolute pressure of wind pressure of air in the first opening of the first housing is P1 [Pa (abs)] and the absolute pressure of wind pressure of air in the second opening of the second housing is P2 [Pa (abs)], a relation of P2<P1 is satisfied at least during an image forming operation.