| 摘要 |
<p>PURPOSE: To provide a small-sized image forming device capable of forming an image at high speed and also forming an excellent color image even in a high humidity environment. CONSTITUTION: The device is constituted of a 1st image forming unit Pa with a 1st image forming means and a 1st transfer means and for forming a 1st toner image, and a 2nd image forming unit Pb with a 2nd image forming means and a 2nd transfer means and for forming a 2nd toner image. Besides, the device is provided with a fixing means 7 for fixing the 1st toner image and the 2nd toner image which are transferred to a transfer material 6 and a carrying means for carrying the transfer material 6 to the 1st image forming unit Pa, the 2nd image forming unit Pb and the fixing means 7. The length of the transfer material 6 in the carrying direction is made longer than a distance between a 1st transfer part and a 2nd transfer part, a 1st transfer bias is different from a 2nd transfer bias in size, and both the 1st toner and the 2nd toner are provided with shape factor; SF-1 of 100 to 180 and SF-2 of 100 to 140.</p> |
