Dual-sided image forming device with improved recording medium correction part

摘要

An image forming device includes an image forming part which forms an image on a recording medium; a stacker which stores the recording mediums one on another; a recording medium switchback portion which receives the recording medium on a first run, one side of which has been printed when passing the image forming part, and sends the recording medium for a second run; an inverted recording medium transfer path through which the recording medium is sent to the image forming part with an upper surface and a lower surface of the recording medium reversed; a recording medium transfer part which transfers the recording medium along the inverted recording medium transfer path; a recording medium position correcting part, located at the inverted recording medium transfer path, which corrects a position in a width direction of the recording medium, and a control means for controlling the recording medium position correcting part with a particular operation timing so that the recording medium position correcting part is operated while the printing means is transferred along the inverted recording medium transfer path by the recording medium transfer part.