Image forming apparatus with collection of dust resulting from a parting agent contained in toner
US11294311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2020 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Oct 22, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/206
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A printer 1 including an image forming portion using toner containing a wax, a transfer portion for transferring an image onto a sheet, a belt unit and a pressing roller which heat the sheet in a nip, a duct including an air suction port for sucking air from a sheet inlet, a filter provided on the duct and for collecting dust, and a fan provided on the duct and for sucking the air includes a detector for detecting a temperature in the neighborhood of the belt unit and a control circuit portion for effecting control so that an air flow rate of the fan is weakened in the case where the temperature in the neighborhood of the belt unit is high during an image forming process and so that the air flow rate of the fan is weakened in the case where the temperature is high.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.