Image forming apparatus and transfer bias control

Image forming apparatus and transfer bias control

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Wada Yuuji, Yogosawa Kazuki, Kogure Seiichi, Mizutani Takehide, Haga Hiroyoshi, Sugiura Kenji, Ishii Hirokazu, Fujita Junpei, Kochi Naoto, Kumagai Naohiro, Ohsugi Tatsuya
Format: Patent
Sprache:eng
Schlagworte:
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Beschreibung
Zusammenfassung: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.