Image forming apparatus

Patent metadata

Field	Value
Publication number	US-10035671-B2
Application number	US-201615550906-A
Country	US
Kind code	B2
Filing date	Mar 31, 2016
Priority date	Apr 6, 2015
Publication date	Jul 31, 2018
Grant date	Jul 31, 2018

Abstract

An image forming apparatus ( 1 ) includes an image forming device ( 5 ), a conveyor device (L), and a manual paper feed section ( 8 ). The conveyor device (L) conveys paper (P). A part of the conveyor device (L) is constituted by a conveyance guide unit ( 83 ) and an exterior unit ( 82 ). The exterior unit ( 82 ) is located opposite to the conveyance guide unit ( 83 ) and constitutes a part of an exterior surface of the image forming apparatus ( 1 ). The manual paper feed section ( 8 ) includes a paper feed roller ( 821 ) and a retard roller ( 831 ). The paper feed roller ( 821 ) is located in the exterior unit ( 82 ) and feeds paper (P) placed on a manual feed tray ( 81 ) to the conveyor device (L). The retard roller ( 831 ) is located in the conveyance guide unit ( 83 ) and separates sheets of the paper (P) fed by the paper feed roller ( 821 ).

First claim

The invention claimed is:

1. An image forming apparatus that performs image formation on a recording medium, comprising:
an image forming device configured to form an image on the recording medium;
a conveyor device configured to convey the recording medium; and
a manual paper feed mechanism configured to perform manual paper feeding, wherein
a part of the conveyor device is constituted by a conveyance guide unit and an exterior unit,
the exterior unit is located opposite to the conveyance guide unit and constitutes a part of an exterior surface of the image forming apparatus,
the manual paper feed mechanism is located in the conveyance guide unit or the exterior unit,
the image forming apparatus further comprising members that constitute the manual paper feed mechanism, the members including a paper feed roller that feeds the recording medium to the conveyor device,
the paper feed roller is located in the exterior unit,
the members that constitute the manual paper feed mechanism include a separating roller that separates recording mediums fed by the paper feed roller, and
the separating roller is located in the conveyance guide unit.

2. The image forming apparatus according to claim 1 , wherein
the paper feed roller is located at a position corresponding to a central part of the recording medium in a width direction thereof, and
the paper feed roller has a width smaller than that of the recording medium.

3. The image forming apparatus according to claim 1 , wherein
the separating roller is located at a position corresponding to a central part of the recording medium in a width direction thereof, and
the separating roller has a width smaller than that of the recording medium.

4. The image forming apparatus according to claim 1 , wherein
the separating roller is a retard roller.

5. The image forming apparatus according to claim 1 , wherein
the members that constitute the manual paper feed mechanism include a manual feed tray on which the recording medium is placed,
the exterior unit includes a tray accommodating space, and
the tray accommodating space accommodates the manual feed tray.

6. The image forming apparatus according to claim 5 , wherein
the manual feed tray includes a lift plate, and
the lift plate presses the recording medium placed on the manual feed tray against the paper feed roller in paper feeding.

Assignees

• Kyocera Document Solutions Inc

Inventors

• Tashiro Yoshiaki
• Doyo Hideaki

Classifications

• B65H2801/06

  Office-type machines, e.g. photocopiers · CPC title

• B65H5/025

  between belts and rotary means, e.g. rollers, drums, cylinders or balls, forming a transport nip · CPC title

• B65H3/0661 Primary

  for separating inclined-stacked articles with separator rollers above the stack · CPC title

• B65H3/52

  Friction retainers acting on under or rear side of article being separated · CPC title

• G03G15/6511

  Feeding devices for picking up or separation of copy sheets · CPC title