Image forming apparatus having transfer power source that applies voltage to secondary transfer member to perform secondary transfer of toner images from electrically conductive intermediate transfer belt to recording materials, toner images on image carrier primarily transferred to belt by transfer power source and contact member in which an electric potential is formed by constant-voltage element, transfer power source and auxiliary power source
US10627749B2 · kind B2 · utility
0Cited by
4References
9Claims
0Family size
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Key dates
| Filing date | Dec 17, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Dec 17, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/1665
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A voltage maintenance element is connected to a contact member that contacts a primary transfer surface area of an intermediate transfer belt to which toner images are transferred from a plurality of image carriers between stretch members, in such a way as to prevent the electric potential of the intermediate transfer belt from varying between respective image forming stations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.