Image forming apparatus and transfer bias control
US9835987B2 · kind B2 · utility
1Cited by
2References
13Claims
0Family size
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Key dates
| Filing date | Mar 9, 2016 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Mar 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/1675
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image bearer; a toner image forming device; an intermediate transferor; a primary transfer power source; a secondary transfer nip forming device; and a secondary transfer power source to output a secondary transfer bias. One of two peak values of the secondary transfer bias is a transfer peak value to provide a greater transfer-directional force to move toner from the intermediate transferor toward the recording medium in the secondary transfer nip. An absolute value of the transfer peak value is greater than an absolute value of the primary transfer bias.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.