Exhaust device having a plurality of intake ports and image forming apparatus including the same
US10877435B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2018 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Dec 23, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1645
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an exhaust unit. The exhaust unit includes a first duct. The first duct includes a plurality of communication ports, and an exhaust fan for discharging air of the first duct to an outside. The plurality of communication ports are each formed such that distances to the exhaust fan are different from each other. Further, the first duct includes an inflow port which is formed on an upstream of flow of air from the communication port formed on the most upstream side of the flow of the air among the plurality of communication ports, and to which the auxiliary air is supplied from a first exhaust fan provided in the outside.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.