Image forming apparatus and method of controlling transfer power thereof
US10139778B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Feb 24, 2017 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Feb 24, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/167
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of controlling transfer power of an image forming apparatus includes: determining a sensing feedback voltage by applying a set sensing current and measuring a first output voltage during a time period before an image is transferred to a transfer medium; measuring humidity and comparing the measured humidity with a set value; setting a target voltage based on the determined sensing feedback voltage when the measured humidity is equal to or higher than the set value; and adjusting the transfer current to apply the target voltage during a time period in which the image is transferred to the transfer medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.