| 摘要 |
PROBLEM TO BE SOLVED: To provide an image formation apparatus capable of optimally applying bias and reducing leakage of bias voltage.SOLUTION: An image formation apparatus comprises: an image carrier; a transfer cylinder; an impression cylinder 300 for transferring a toner image of the transfer cylinder onto a recording medium M; an impression cylinder bias sheet 332; a first feed electrode 371afor applying transfer bias voltage from a first region R1 of the impression cylinder 300 to the transfer cylinder; and a second feed electrode 371afor applying transfer bias voltage from a second region R2 of the impression cylinder 300 to the transfer cylinder. The impression cylinder bias sheet 332 includes: a base material layer rolled around the circumference of the impression cylinder 300 and having insulation property; a first conductive layer 332aformed on the base material layer, having electric conductivity and forming the first region R1 in the circumferential direction of the impression cylinder 300; and a second conductive layer 332aformed on the base material layer, having electric conductivity and insulated from the first conductive layer 332a, and forming the second region R2 distinguished from the first region R1 in the circumferential direction of the impression cylinder 300. |
