Image forming apparatus and method of controlling the same
US10372055B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2017 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Dec 6, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a photoconductor, a charging member, a first power supply circuit which supplies electric power to the charging member, a detector configured to detect a current value of an alternating current which flows to the charging member, and a controller configured to control an operation of the first power supply circuit. The controller is configured to lower a frequency of alternating-current power supplied to the charging member by the first power supply circuit when the current value detected by the detector in application of a voltage of a prescribed value to the charging member by the first power supply circuit is equal to or smaller than a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.