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    • 5. 发明授权
    • Image forming apparatus, image forming method, and transfer device
    • 图像形成装置,图像形成方法和转印装置
    • US07933527B2
    • 2011-04-26
    • US11875753
    • 2007-10-19
    • Hirokazu YamauchiToshiki TakiguchiHiroyuki MuraiKazuhiro MatsuyamaMasato Kuze
    • Hirokazu YamauchiToshiki TakiguchiHiroyuki MuraiKazuhiro MatsuyamaMasato Kuze
    • G03G15/00
    • G03G15/1675G03G2215/1614
    • In an image forming apparatus, an electrostatic latent image formed on a surface of a photoreceptor is developed into a toner image. A printing paper transported on a transport belt is brought into contact with the surface of the photoreceptor and an electric field is applied to the printing paper from a rear surface of the transport belt by a transfer roller to transfer the toner image onto the printing paper. The transfer roller applies different levels of electric field to the printing paper, so that a predetermined transfer electric field is applied to a region other than a leading edge of the printing paper being transported. An electric field weaker than the predetermined transfer electric field is applied to the leading edge. Even in the presence of a projection generated when the printing paper is cut, the printing paper naturally strips off from the surface of the photoreceptor.
    • 在图像形成装置中,形成在感光体的表面上的静电潜像显影成调色剂图像。 在传送带上传送的打印纸与感光体的表面接触,并且通过转印辊从传送带的后表面向打印纸施加电场,以将调色剂图像转印到打印纸上。 转印辊对打印纸施加不同程度的电场,使得预定的转印电场被施加到除了被输送的打印纸的前端以外的区域。 将比预定转印电场弱的电场施加到前端。 即使在打印纸被切割时产生的突起的存在下,打印纸自然地从感光体的表面剥离。