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image forming device

An image and image output technology, applied in the field of image forming devices, can solve problems such as poor operability and rising costs, and achieve the effect of reducing noise

Active Publication Date: 2019-11-12
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these cannot solve the aforementioned problems of deterioration of operability, cost increase due to increased number of parts, and occurrence of abrasion or breakage of elastic members.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0056] figure 2 Shown is a schematic configuration diagram of the configuration of the paper feed cassette 30 of the image forming apparatus according to the embodiment of the present invention. The paper feed cassette 30 has a bottom plate 51 for bringing the paper P into contact with a paper feed roller 30a (not shown), a friction pad 52 for separating the loaded paper P one by one, and an alignment mechanism for aligning the paper P. The side rails 53L and 53R at the positions in the width direction, and the bottom end rail 54 for aligning the position of the paper P in the depth direction. Side walls 60R and 60L are provided on the side surfaces of the paper feed cassette 30, and guide portions 61L and 61L for inserting, extracting, and positioning the paper feed cassette 30 relative to the image forming apparatus 1 are provided on the side walls 60R and 60L. 61R.

[0057] image 3 Shown is a perspective view of the main body 1a of the image forming apparatus seen from...

Embodiment approach 2

[0061] Figure 9 and Figure 10 Shown is a schematic configuration diagram of the configuration of an image forming unit and a paper feed cassette according to a second embodiment of the present invention. Image 6 The shown inclined portion is configured on the entire length of the insertion and extraction direction of the paper feed cassette 30, but due to structural reasons, the inclined portion cannot be disposed on the entire length, or it is necessary to lower only a certain portion. It is also possible to move the position of the inclined part when noise comes out in the direction. Such as Figure 9 As shown, the inclined portion is preferably arranged in the vicinity of the paper feed roller which is the main source of noise generation of the paper feed cassette 30, but, for example, when reducing noise to the rear side of the paper feed cassette 30, it may can be as Figure 10 The inclined portion is provided on the rear side as shown. That is to say, when the in...

Embodiment approach 3

[0063] Figure 11 Shown is a schematic configuration diagram of the configuration of an image forming unit and a paper feed cassette according to a third embodiment of the present invention. exist figure 2 and image 3 In the above, the inclined portion is provided on the upper side of the side wall 60 of the paper feed cassette 30. When it is difficult to form the inclined portion on the upper side due to the limitation of the layout structure, it may also be provided on the side surface side 64 of the side wall 60. In addition, a paired slope portion 65 is also provided on the side of the image forming apparatus main body 1a. If the inclined portion of the dividing line is provided on the side surface 64 of the paper feed cassette 30 , the rigidity of the side surface of the paper feed cassette 30 can be ensured and sound leakage can be prevented.

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Abstract

An image forming device of the present invention can reduce a gap between a paper supply case and the image forming device to the greatest extent in the case of not providing a movable member or elastic member, and can well ensure operability and reduce noise while achieving miniaturization of a body and low cost. A cutting line between a wall surface (60) of a side wall (60) of a paper supply case (30) and a body protruding part (63) is oblique relative to an insertion and pull-out direction Q of the paper supply case, thus a gap S therebetween can expand when the paper supply case is pulled out. In this way, operability can be well ensured, a guiding function is provided when the paper supply case is inserted, and when the paper supply case is arranged in an assigned position, the gap can achieve the minimum, and the noise can be prevented from leakage, thereby reducing the noise. When an oblique part is arranged on the whole length of a paper storage part of the paper supply case, an area of generation of the gap is further reduced, so as to prevent leakage of sound.

Description

technical field [0001] The present invention relates to an image forming apparatus, and specifically relates to an image forming apparatus capable of reducing noise while ensuring operability. Background technique [0002] Users generally recognize driving sounds of motors, gears, etc. generated during image formation, or sliding friction sounds during paper conveyance, as noise. In addition, in recent years, as image forming apparatuses have become smaller, lighter, and less expensive, they are more often installed near users, and the demand for noise reduction has also increased. In order to reduce noise, there are methods of identifying the source of noise and suppressing the amount of generation, or sealing the path of leakage from the source to the outside of the main body. In particular, the latter method of blocking the path is particularly effective when the amount of noise source generation cannot be suppressed. [0003] In addition, in an image forming apparatus,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G21/16
CPCG03G21/1638
Inventor 萩原元太山木敏生山崎宏三福岛辰生桥本晴央多田薰高比良正史
Owner RICOH KK
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