| 摘要 |
An image forming apparatus includes: an image supporting member; a transfer member for transferring a developer image formed on the image supporting member to a medium; a current supply unit for supplying a detection current to the transfer member; a voltage detection unit for detecting a voltage generated in the transfer member when the detection current is supplied thereto; a comparison unit for comparing the generated voltage and a switch voltage selected according to the detection current; and a transfer voltage determining unit for determining a transfer voltage according to the generated voltage.
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