MANUAL PAPER FEED DEVICE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

摘要

A manual paper feed device includes: a manual feed tray on which sheets are stacked; a paper feeding roller that feeds the sheets on the manual feed tray into an image forming unit; a pressing tray that is, with the sheets stacked thereon, rotatably supported and a downstream side of which in a conveying direction of the sheets is biased to the paper feeding roller side; a bias releasing member that separates and holds the pressing tray in a direction opposed to the bias direction and releases the biasing; and a sensor that detects at least one of presence or absence of the sheets on the manual feed tray and a bias releasing state of the pressing tray. The manual paper feed device prohibits paper feeding operation when the bias releasing state of the pressing tray is detected regardless of presence or absence of sheets stacked on the pressing tray.