| 摘要 |
PURPOSE:To improve accuracy in the mutual rotation of three cylinder-like members, etc., in a recording system in which the primary and secondary transfers using an adhesive intermediate transfer body are carried out in sequence. CONSTITUTION:In an image forming device which makes the intermediate transfer body 8 adhere to a toner image carrier 2, creates a potential difference therebetween to transfer a toner image on the toner image carrier 2 to the intermediate transfer body 8, and further transfers the toner image to a recording material by making the recording material in pressure-contact with the intermediate transfer body 8 by the use of a pressure cylinder 27 after heating the toner image and the recording material or while heating them, is provided with: drive means 43, 44 and 45 for driving the toner image carrier 2, the intermediate transfer body 8, and the pressure cylinder 27, respectively, the rotating position detectors 49, 50 and 51 being provided on the shafts of the driving means 43, 44 and 45, respectively; and a cylinder control means 55 for carrying out mutual positioning of the toner image carrier 2, the intermediate transfer body 8 and the pressure cylinder 27, and the control of their phases by having the encoder pulse of one of the rotating position detectors 49-51 as a reference. |
