Title:
画像形成装置および制御方法
Document Type and Number:
Japanese Patent JP7180414
Kind Code:
B2
Abstract:
An image forming apparatus includes a photoconductor, a charging roller configured to charge the photoconductor, and a self-excited oscillation circuit. The image forming apparatus includes a transformer including a primary coil and a secondary coil, the transformer being configured to produce, at the secondary coil, a voltage applied to the charging roller, in accordance with the primary coil being driven by the self-excited oscillation circuit. The image forming apparatus includes a controller configured to control, at start-up of the self-excited oscillation circuit, the self-excited oscillation circuit to allow an amount of a current flowing through the primary coil to be larger than an amount of a current flowing from the photoconductor through the secondary coil, via the charging roller.
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Inventors:
川▲崎▼ 浩一
Application Number:
JP2019013649A
Publication Date:
November 30, 2022
Filing Date:
January 29, 2019
Export Citation:
Assignee:
株式会社リコー
International Classes:
G03G21/00; G03G15/02; G03G15/06; H02M3/28
Domestic Patent References:
| JP2016177025A | ||||
| JP2008225029A | ||||
| JP2003295633A | ||||
| JP2000105523A | ||||
| JP9269630A | ||||
| JP57118260A |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito