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Medium conveyance apparatus and image formation apparatus

a technology of image formation apparatus and conveyancing apparatus, which is applied in the direction of registering device, thin material handling, article separation, etc., can solve the problem that the conveyancing unit cannot be easily detached from the main body of the apparatus, and achieve the effect of convenient disassembly

Inactive Publication Date: 2014-12-04
OKI DATA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patent text is to enable a conveyance unit to be easily dismounted. This allows for easy replacement or servicing of the unit.

Problems solved by technology

However, the conveyance unit cannot be easily detached from the apparatus main body.

Method used

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  • Medium conveyance apparatus and image formation apparatus
  • Medium conveyance apparatus and image formation apparatus
  • Medium conveyance apparatus and image formation apparatus

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0032]FIG. 1 is a schematic cross-sectional view of a principal configuration of image formation apparatus 1 according to a first embodiment of the invention. As illustrated in FIG. 1, image formation apparatus 1 is provided with apparatus main body (frame) 10, and inside apparatus main body 10, medium storage cassette 20 that stores therein sheet-like media Pa as materials to be transferred, pickup roller 32 that picks up medium Pa from medium storage cassette 20, feed roller 33 and separation roller 23 that send out medium Pa one by one, medium guide mechanism 46 that guides medium Pa sent out by feed roller 33 and separation roller 23, and medium transport mechanism 50 that transports medium Pa passed through medium guide mechanism 46 to main conveyance path D0.

[0033]Apparatus main body 10 includes a front end (right side in the drawing) and a rear end (end disposed on the side opposite to the front end) that are opposed to each other. Image formation apparatus 1 is provided with...

second embodiment

[0083]Next, a second embodiment according to the invention is described. FIG. 13 is a schematic perspective view of sub-conveyance unit 140 for duplex printing incorporated into an image formation apparatus in the second embodiment. Moreover, FIG. 14 is a schematic perspective view of base unit 130 incorporated into the image formation apparatus in the embodiment. The configuration of the image formation apparatus in the embodiment is similar to the configuration of the image formation apparatus in the first embodiment, except for including sub-conveyance unit 140 of FIG. 13 and base unit 130 of FIG. 14 in place of sub-conveyance unit 40 and base unit 30 in the first embodiment.

[0084]Sub-conveyance unit 140 includes, as illustrated in FIG. 13, main guide member 147 that is turnably attached to the front end of guide plate member 41, and protrusion portions 34Ra, 34La (turn regulation ribs) that regulate the rotation of main guide member 147 in the outer direction. Protrusion portion...

modification examples of first and second embodiments

[0090]In the foregoing, although the various embodiments according to the invention are described with reference to the drawings, these embodiments are merely examples of the invention, and various forms other than the abovementioned embodiments can be employed. For example, the image formation apparatuses in the first and the second embodiments each include one process unit 60 mounted thereon, and thus have only a function of forming a monochromatic printed image, but the invention is not limited thereto. An image formation apparatus that forms a color printed image can be implemented by preparing multiple process units that are arranged along with main conveyance path D0.

[0091]Moreover, the image formation apparatuses in the first and the second embodiments employ a direct transfer method to transfer a developer image onto medium Pa, but the invention is not limited thereto. The structure in which a developer image is transferred onto medium Pa by an intermediate transfer method m...

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PUM

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Abstract

A medium conveyance apparatus includes a conveyance mechanism to convey a medium along a main conveyance path from a front side to a rear side; a sub-conveyance unit including a sub-conveyance path parallel with the main conveyance path and configured to convey the medium along the sub-conveyance path from the rear side to the front side; a medium transport mechanism to transport the medium from the sub-conveyance path or the medium supply unit to the main conveyance path; and a support member supporting the sub-conveyance unit to be slidable toward the front side. The sub-conveyance unit includes: a plate member defining the sub-conveyance path; and a medium guide mechanism attached to one end of the plate member on the front side. The medium guide mechanism guides the medium from the medium supply unit to the medium transport mechanism, and the medium from the sub-conveyance path to the medium transport mechanism.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority based on 35 USC 119 from prior Japanese Patent Application No. 2013-118049 filed on Jun. 4, 2013, entitled “MEDIUM CONVEYANCE APPARATUS AND IMAGE FORMATION APPARATUS”, the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]This disclosure relates to a medium conveyance apparatus on which a medium conveyance unit for use to form images on both sides of a sheet-like medium is detachably mounted, and an image formation apparatus provided with the medium conveyance apparatus.[0004]2. Description of Related Art[0005]Some image formation apparatuses such as printers or copiers have a duplex printing function of forming images on both sides (front-side surface and back-side surface) of a sheet-like medium such as paper, in addition to a function of forming an image on one side thereof. For example, Patent Literature 1 (Japanese Patent Appl...

Claims

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Application Information

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IPC IPC(8): B65H9/00B65H7/20
CPCB65H7/20B65H9/00B65H5/062B65H5/26B65H5/36B65H2402/441B65H2404/142B65H2404/611B65H2601/11B65H2801/09
Inventor KOBAYASHI, YUTA
Owner OKI DATA CORP