Thermal fixing unit having gas purification means
US5047798A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1989 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Dec 13, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2227/325
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A thermal fixing unit provided with gas purification means for use in an image recording medium. The gas purification means traps gaseous component released from a developer sheet upon heating thereof. The purification means includes a duct body disposed to surround a main frame of the thermal fixing unit, a support body having one end connected to the duct body, a fluid passage being defined between the main frame and the duct body, and the fluid passage being connected between the one end of the support body and sheet inlet and sheet outlet of the thermal fixing unit, the gas venting fan rotatably provided at the support body for sucking fluid in the main frame through the sheet inlet, the sheet outlet and the fluid passage, and a filter member disposed in the support body for trapping the gaseous component released from the developer sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.