Image forming apparatus having airflow generating section and shield member in conveyance unit
US9158278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2014 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Aug 25, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1645
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a sheet conveyance passage, a photosensitive drum, a transfer unit, a fixing section, a conveyance unit, one or more detection sensors, an airflow generating section, a cooling airflow passage, and a shielding member. The conveyance unit is at an opposite side of the transfer unit from the photosensitive drum with a predetermined clearance from the transfer unit. Each detection sensor is disposed to face the transfer unit in cross section intersecting the axial direction of the photosensitive drum. The sheet detection sensor performs a predetermined detection. The airflow generating section causes a cooling airflow to flow between the transfer unit and the conveyance unit in the axial direction. The cooling airflow passage guides the cooling airflow toward each detection sensor. The shielding member blocks an airflow from a location around the transfer unit toward the cooling airflow passage in a direction intersecting the axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.