Image forming apparatus
US11448987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2021 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Mar 31, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2042
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming apparatus, in continuous image formation in which images are continuously formed and fixed on a plurality of recording materials in a fixing portion, with a period from start of the continuous image formation on a first recording material to arrival thereof at the fixing unit being regarded as a first period, and with a period from the arrival of the first recording material at the fixing portion to the end of the continuous image formation being regarded as a second period, a second maximum energizing duty that is set when the control portion supplies power to a plurality of heating elements in the second period is higher than a first maximum energizing duty that is set when the control portion supplies power to the plurality of heating elements in the first period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.