Patent ID: 9609158
Date: 2017-03-28
CPC Classifications: H04N

Claim:
1. An image forming device having a printer unit, a post-processing unit, and an eject tray, wherein the printer unit forms images on recording sheets, and the post-processing unit performs processing on a recoding sheet stack composed of one or more recording sheets output from the printer unit before the recording sheet stack is ejected onto the eject tray, the image forming device comprising: a buffer unit that, while a first recording sheet resides in the post-processing unit for the post-processing, holds a second recording sheet therein, the second recording sheet output from the printer unit subsequent to the first recording sheet; and a reverse path that reverses recording sheets when the image forming device performs duplex printing, wherein in a plan view of the image forming device taken along a vertical direction, the post-processing unit, the buffer unit, and the reverse path at least partially cover one another, the image forming device further comprising: a first guide plate that serves as a partition between the reverse path and the buffer unit; a second guide plate that serves as a partition between the post-processing unit and the buffer unit, while the first recording sheet resides in the post-processing unit, the second guide plate being opposite to the first guide plate over the buffer unit; and a driver that drives the second guide plate to slide and transfer the second recording sheet to the post-processing unit.