Double-side imaging device, reversible transmitting unit and imaging apparatus

Abstract

A duplex image forming device includes an image forming device and a reversible transportation unit. The image forming device includes a paper transportation path, a paper feed unit which transports a paper to the paper transportation path, a printing unit which prints an image onto the paper, and a discharge tray where the paper printed with the image is discharged. The reversible transportation unit includes a main body frame having a contacting surface that contacts against the side of the image forming device, a reversible transportation path which transports-in the paper from a downstream side of the printing unit and transports-out the paper to an upstream side of the printing unit in the paper transportation path, transportation rollers for transporting the paper through the reversible transportation path, and a motor a motor which drives the transportation rollers and is disposed protruding outward the contacting surface of the main body frame so that at least a part of the motor is disposed in the image forming device when the reversible transportation unit is inserted into the image forming device.

Description

technical field [0001] The present invention relates to an image forming apparatus, such as a copier and a facsimile machine, and more particularly, to a reversible transport unit for forming images on both sides of paper; An imaging device into which the reversible transport unit is inserted. Background technique [0002] In order to form images on both sides of the paper, a common imaging device first forms an image on one side, then turns the paper over, and then performs imaging on the other side. Even if a certain image forming device can form images on both sides of paper, it is not always necessary to form images on both sides. Thus, if necessary, a reversible transport unit can be added to the main body of the image forming apparatus, which can reverse the image-printed paper side of the paper and transport the paper so that image formation can be performed on both sides of the paper. By hanging the reversible delivery unit on the device, such an advantage is broug...

AI Technical Summary

Problems solved by technology

On the other hand, such a design also brings some disadvantages: the imaging device with the reversible conveying unit will become wider, thus requiring an increase in the installation space of the imaging device

In this case, the installation space of the entire imaging device does not increase, but the layout design of the main body of the imaging device is limited

Therefore, it is necessary to reconsider the arrangement of other components such as the paper feeding unit and the printing unit.

Also, space must be left in the unit for reversible conveyor units

As a result, the size of the imaging device will increase

Images