IMAGE FORMING APPARATUS

To provide an image forming apparatus that can prevent the occurrence of waste of sheets due to printing on the sheets in a multi-fed state.SOLUTION: An image forming apparatus performs printing on a recording medium based on image data, and comprises: a printing unit that prints an image on the recording medium at a predetermined printing position; a first conveying member that conveys the recording medium at the printing position; a second conveying member that is provided on the upstream side of the first conveying member on a conveyance path of the recording medium and conveys the recording medium toward the printing position with an opposing member opposite thereto; a power supply device that applies a first voltage to the first conveying member and applies a second voltage different from the first voltage to the second conveying member in order to detect multi-feeding of recording media in a multi-feeding detection unit formed by the second conveying member and the opposing member; and a control device that determines whether the recording media are multi-fed in the multi-feeding detection unit based on a feedback signal from the second conveying member detected by the power supply device.SELECTED DRAWING: Figure 2 【課題】重送の状態の用紙に印刷されることによる用紙の無駄の発生を抑制することができる画像形成装置を提供する。【解決手段】画像データに基づいて記録媒体に印刷を行う画像形成装置であって、記録媒体に画像を所定の印刷位置で印刷する印刷部と、印刷位置における記録媒体を搬送する第１搬送部材と、記録媒体の搬送経路において第１搬送部材よりも上流側に設けられ、対向する対向部材と共に、印刷位置へ向けて記録媒体を搬送する第２搬送部材と、第１搬送部材に対して第１電圧を印加し、第２搬送部材および対向部材により形成される重送検知部において記録媒体の重送を検知するために、第２搬送部材に対して第１電圧とは異なる第２電圧を印加する電源装置と、電源装置により検出された第２搬送部材のフィードバック信号に基づいて、重送検知部において記録媒体が重送となっているか否かを判定する制御装置と、を備える。【選択図】図２