Image forming apparatus controlling transfer power source based on detection result of detection unit connected to transfer portion
US10503107B2 · kind B2 · utility
0Cited by
2References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2017 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Dec 1, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A heating member of a fixing unit is situated in a fixing portion, and a commercial power source applies an alternating-current voltage to the heating member so that the heating member heats a transfer medium held in the fixing portion. In a case of transferring the toner image from an image bearing member onto the transfer medium in a transfer portion, a control unit controls a transfer power source based on a result of a comparison between a frequency obtained from a first detection result input from a detection unit with a predetermined frequency range including the frequency of the alternating-current voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.