JP2001183881A - Paper housing structure body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute the wiring of a wiring cable 70 (71a) specially positioned between a paper housing tray 50 and a main body 1 sufficiently satisfactorily from the viewpoints of safety, maintenance, assembly, appearance and space with simple constitution as for the paper housing tray 50 which is attached rockably to the main body 1 being the object to be attached and which is provided with electric parts 60. SOLUTION: Through-hole structure is adopted for a rotary shaft 54 for attaching the paper housing tray 50 rockably to the device main body 1. Besides, the wiring cable 70 (71) passes through the through-hole part 54a of the shaft 54.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper storage structure swingably mounted on a main body to be mounted, and more particularly to a paper storage tray and a document storage feeder in an image forming apparatus such as a copying machine or a printer. The present invention relates to a wiring structure of a wiring cable between an electric component disposed in a paper storage structure and a main body side.

[0002]

2. Description of the Related Art In an image forming apparatus such as a copying machine or a printer using an electrophotographic system or the like, a paper storage tray (or a paper feed tray, Manual feed tray).

As shown in FIG. 12, a paper storage structure typified by such a paper storage tray 100 is usually bidirectionally mounted on a main body 110 of an image forming apparatus via a rotating shaft 120 and a bearing 130 thereof. Is mounted so as to be swingable in the direction indicated by the arrow, so that when it is used, it is swung in the tilting direction to be separated from the main body side, while
When it is not used, it is swung in the direction in which it is raised to bring it closer to or retracted from the main body.

The paper storage tray 100 serving as such a paper storage structure includes a switch for switching a reference guide for positioning the paper P to be stored, a paper detection sensor for detecting the presence or absence of the paper P on the tray, and a paper storage sensor. An electric component 150 such as a size detection sensor for detecting the size of the sheet P to be printed is provided. Such an electric component 150 is connected to the main body 110 side of the image forming apparatus by a wiring cable 160, whereby information (electric signal) obtained by the electric component 150 is transmitted to the main body 110 side. ing.

[0005]

Incidentally, in the paper storage tray 100 having the above-described electric component 150, the paper storage tray 160 particularly connects the electric component 150 to the apparatus main body 110. Tray 1
There is a problem with respect to the wiring of the portion 160a located between the device body 110 and the device main body 110.

That is, since the sheet storage tray 100 is mounted so as to be able to swing with respect to the apparatus main body 110, particularly regarding the wiring of the wiring cable 160 in the above-described portion, its safety, maintenance, assembly, Since it is necessary to comprehensively consider the appearance and the space, the wiring design is unexpectedly difficult.

In fact, the sheet storage tray 100 and the apparatus main body 1
In many cases, the wiring cables 160 between the ten are drawn at least once outside the tray body or the like. Moreover, in this case, the drawn out portion of the wiring cable 160 is disposed so as to be routed while selecting a position invisible to the user as much as possible, or to route the wiring cable 160 from the safety or appearance. For example, a flexible covering material such as a tube having a similar color to the external appearance of the apparatus body is covered, or the wiring cable portion is covered with a rigid cover. Further, the wiring cable portion 160a is designed so as not to hinder the swinging operation of the sheet storage tray 100 and to prevent disconnection due to stress such as bending due to the swinging operation. We use cables that have a characteristic that is hard to be routed or broken so that the curvature is large.

Therefore, in such a wiring method,
It is difficult to satisfy all of the above safety aspects, maintenance aspects, assembling aspects, appearance aspects, space aspects, etc., and in particular, they are insufficient in terms of safety aspects (disconnection fear) and appearance aspects (aesthetic appearance). In addition, the wiring work tends to be complicated and increase the cost.

The present invention has been made in view of the above circumstances, and has a paper storage structure typified by a paper storage tray or the like which is mounted on a main body to be mounted so as to be swingable and has electric components. As a body, especially the wiring of the wiring cable located between the structure and the main body has a simple configuration and can be sufficiently satisfied in terms of safety, maintenance, assembly, appearance, space, etc. It is an object of the present invention to provide a sheet storage structure that can be applied.

[0010]

A sheet accommodating structure according to the present invention, which can achieve the above object, is swingably mounted on a main body to be mounted via a rotary shaft and its bearing, and is connected to the main body and a wiring cable. Wherein the rotating shaft has a hollow through structure, and is wired through the wiring cable in the hollow through portion of the rotating shaft. .

[0011] According to such a paper storage structure, the wiring cable located between the paper storage structure and the main body is accommodated in the hollow through portion of the rotating shaft of the hollow through structure. The wiring cable portion extending from the hollow through portion of the rotating shaft is appropriately disposed on the main body side and the paper storage structure side. As a result, the wiring of the wiring cable located between the paper storage structure and the main body, which has been a problem in the related art, can be reduced in terms of safety, maintenance, assembly, external appearance, space, wiring layout, and the like. It is possible to perform (and design) in a form close to the ideal. The shape and dimensions of the hollow through portion of the rotary shaft are arbitrary, and are set as appropriate from the viewpoint of ease of wiring of the wiring cable, mechanical strength of the rotary shaft, and the like.

The above-mentioned wiring cable is not particularly limited. In addition to a general wire type cable,
A flat cable or the like is used. Further, as the distribution cable, different types of cables such as a wire type cable and a flat type cable may be used in combination. Furthermore, it is advantageous to use a flat cable, especially when the number of electrical components and the amount of information are large.

Further, in a case where the wiring cable is divided into a wiring cable on the main body side and a wiring cable on the electric component side and connected by a connector, each connector of the wiring cable on the main body side and the electric component side is provided. Are arranged separately at the end of the rotating shaft and the bearing-side portion facing the end, and have a structure in which the rotating shaft is coupled and separated with the attachment / detachment operation with the bearing. be able to.

With this configuration, the connection and disconnection of the wiring cable near the rotation axis can be easily performed in conjunction with the attachment / detachment operation of the sheet housing structure. For this reason, it is not necessary to perform only the work for connection and disconnection, which is particularly advantageous in terms of assembly (work surface).

Such a paper storage structure is not particularly limited as long as it satisfies the above requirements.
For example, a paper storage tray mounted on an image forming apparatus such as a copying machine or a printer for forming a toner image, or a document storage and feeding device (a document storage device mounted on a platen serving as a document mounting table so as to be openable and closable via a rotating shaft, Which transports the read original onto a platen for reading the original), and a paper storage tray mounted on the original reading device.

[0016]

[First Embodiment] FIG. 1 is a schematic diagram showing an embodiment of a color image forming apparatus to which a sheet storage tray which is a sheet storage structure of the present invention is applied.

The color image forming apparatus is capable of forming toner images of four colors of yellow (Y), magenta (M), cyan (C) and black (K) in the main body 1 of the apparatus. An image unit (image forming apparatus) 10 and an intermediate transfer for relaying and conveying the toner image formed by the image forming unit 10 to a secondary transfer position facing a conveying path of a recording sheet (recording medium) P by an endless belt Belt module 20
A cassette-type paper supply unit 30 for supplying the recording paper P to the secondary transfer position in the intermediate transfer belt module 20;
A fixing device 40 for fixing the toner image transferred onto the recording paper P is mainly provided. Further, a paper storage tray (manual feed tray or paper feed tray) 50 that is swingably mounted on the apparatus main body 1 is provided.

In the color image forming apparatus, first, a toner image is formed in the image forming unit 10 as follows.

That is, first, the surface of the photosensitive drum 11 as an image carrier that is driven to rotate in the direction of arrow A is uniformly charged to a predetermined potential by a charging roll 12 of a charging device.
Thereafter, an ROS (Raster Output Scanner) as a latent image forming device is provided on the surface of the charged photosensitive drum 11.
Laser beam B modulated according to image information from 13
An electrostatic latent image is formed by scanning exposure of m.
Next, the electrostatic latent image is developed by a predetermined developing device 14 (Y, M, C, K) in the rotary developing device 14 in which toner corresponding to the color of the latent image is stored. As a result, a toner image T of a color corresponding to the electrostatic latent image is formed on the photosensitive drum 11. The image information includes a document reading device and an externally connected device (such as a personal computer)
The information input from such as is used. Reference numeral 15 in the figure
Is a drum cleaner 15 for cleaning the surface of the photosensitive drum 11.

Next, the toner image T formed on the photosensitive drum 11 of the image forming unit 10 is transferred to the intermediate transfer belt 21 of the intermediate transfer belt module 20. Here, reference numerals 22 to 25 in the figure denote intermediate transfer belt 2
1 is a plurality of support rolls that are stretched and rotated in the direction of arrow B, 22 is a drive roll, 23 is a tension roll,
24 is a backup roll and 25 is a driven roll.
Reference numeral 26 denotes the photosensitive drum 11 of the intermediate transfer belt 21.
A primary transfer bias roll, which is disposed on the inner peripheral surface (primary transfer position N1) opposite to the primary transfer bias and to which the primary transfer bias is applied, is denoted by reference numeral 27. Reference numeral 28 denotes a power supply roll which is detachably disposed to contact the backup roll 24 and applies a secondary transfer bias by contacting the backup roll 24. Reference numeral 29 denotes a belt cleaner 29 that cleans the transfer belt 20 after the secondary transfer and that is supported so as to be able to approach and separate from the belt.

Such an intermediate transfer belt module 20
In the above, the toner image T on the photosensitive drum 11 is firstly electrostatically transferred to the intermediate transfer belt 21 at the primary transfer position N1, and thereafter, as the intermediate transfer belt 21 rotates, the secondary transfer position N2 Transported to Further, the toner image transferred onto the intermediate transfer belt 21 is transferred from the sheet storage cassette 31 in the cassette type sheet feeding section 30 to the secondary transfer position N.
2 is electrostatically secondary-transferred to a predetermined recording sheet P supplied to the recording sheet P.

At this time, the recording paper P is stored in a plurality of paper storage cassettes 3 that can be pulled out from the apparatus main body 1.
1 is a storage cassette 31 in which recording paper P is stored according to the type, size, transport direction, and the like, and is stored according to image contents to be formed and setting conditions.
Is fed by a feed roll 32 to a registration roll 33 through a paper conveyance path including a plurality of conveyance rolls and conveyance guides. The registration roll 33 adjusts the secondary transfer position N2 according to the secondary transfer timing. Sent to. A dashed line with an arrow in the drawing indicates a transport path of the recording paper P.

Subsequently, the recording paper P on which the toner image has been secondarily transferred is peeled off from the intermediate transfer belt 21 after the secondary transfer, and then sent to the fixing device 40 to be fixed. The fixing device 40 includes a heating roll 41 and a pressure roll 42.
Are arranged so as to rotate in a state where they are pressed against each other, and the recording paper P is introduced and passed through a fixing nip portion which is a pressed portion between the two rolls 41 and 42. Therefore, the recording paper P after the secondary transfer is fixed to the fixing device 40.
The toner image is heated and pressurized and fixed on one side of the recording paper P by being sent to the fixing nip portion and passing therethrough.

Finally, the recording paper P after fixing is passed through a paper discharge path composed of a plurality of transport rolls and transport guides, for example, in the upper part of the apparatus main body 1 except when the double-sided image forming mode is selected. The paper is discharged to a paper discharge unit 35 provided in the printer. As described above, the basic image forming operation by this image forming apparatus ends.

In this image forming apparatus, as described above, the sheet storage tray 50 swingable with respect to the apparatus main body 1 is provided.
The recording paper P can be stacked and stored on the tray 50 and fed into the apparatus main body 1 during image formation.

2 to 4 show the sheet storage tray 50, FIG. 2 is a perspective view, FIG. 3 is a front view, and FIG. 4 is a plan view. This paper storage tray 50
Is a first tray 51 swingably mounted on the apparatus main body 1.
The second tray 52 is attached to the free end of the first tray 52 so as to be able to be taken in and out, and the main part thereof is constituted.

The first tray 51 includes a rotating shaft 54 having a hollow penetration structure formed to protrude outward at the tip of a support arm 53 provided on both sides thereof so as to protrude toward the apparatus main body 1. It is rotatably fitted and mounted on a bearing portion 3 formed on a tray mounting portion 2 of the apparatus main body 1. Thus, the first tray 51 is swingable in the directions of arrows M and N about the rotation shaft 54 as a fulcrum. On the other hand, when it is not used, it is swung in the direction N to be raised to be held close to the main body 1 side (or stored in the tray storing recess formed on the main body 1 side) and accommodated. You can do it. The tray mounting section 2 of the apparatus main body 1 is hidden by an exterior cover or the like and is not visible from the outside (particularly, the front side of the apparatus).

At one end of the first tray 51, a standard registration guide plate 55 for defining a reference position (standard registration position) at the time of feeding and transporting the stored recording paper P, and this standard registration guide plate A wide registration guide plate 56 for defining a reference position (wide registration position) at the time of transporting a wide recording paper (wide recording paper) PP such as an A3-size printing plate, for example, is provided outside the 55. I have. On the other hand, at the other side end of the first tray 51, a regulating plate 57 for regulating the edges of the recording sheets P and PP opposite to the registration guide plates 55 and 56 is guided by the guide groove 58. It is provided so as to be slidable. Reference numerals 55a and 56 in the figure
Reference numerals a and 57a denote paper pressing protrusions provided so as to protrude inward from the respective guide plates or restriction plates, and pressing and regulating the uppermost surface of the recording paper stacked and stored on the paper tray 50. .

As shown in FIG. 5, the standard registration guide plate 55 is swingably attached to the first tray portion 51 via a support shaft 55a. (When the recording paper P is stored), it is held in an upright state (a in the same figure), and when the wide recording paper PP is stored in the storage tray 50, it is formed on the first tray portion 51. The paper holding protruding piece 55a is housed in the recess 59 and is held in a state of closing the opening of the recess 5 by the guide plate surface. (B in the figure). On the other hand, the wide registration guide plate 56 has a structure in which the wide registration guide plate 56 is always fixed to the first tray portion 51 in an upright state.

A registration position confirmation switch () is provided on the sheet storage tray 50 to check whether the recording paper P stored on the tray 50 is to be used at the standard registration position or at the wide registration position. Electrical components) 60;
A paper presence / absence detection sensor (electric component) 61 for detecting whether or not the recording paper P is present on the tray 50 is provided.

The register position confirmation switch 60 is shown in FIGS.
As shown in FIG. 5, the register guide plate 55 is disposed below the strictly-regulated guide plate 55 (strictly speaking, the hollow interior of the main body 1). The registration position can be confirmed by ON / OFF operation. The paper presence / absence detection sensor 61 is disposed below the standard registration guide plate 55 (strictly, inside the hollow of the main body 1). It can be checked optically.

The switch 60 and the sensor 61
Is connected to the central control unit 5 (FIG. 1) on the main body 1 side of the image forming apparatus by a wiring cable 70. The distribution cable 70 is connected to the switch 60 and the sensor 61.
(Electrical component side) wiring cable 71 connected to the side
And a second device connected to (the central control unit 5 of) the device main body 1.
It is configured to be divided into a distribution cable 72 (on the main body side), and both the distribution cables 71,
71 are connected by connectors 73 and 74. As a result, each piece of detection information (electric signal) obtained by the switch 60 and the sensor 61 is electrically transmitted to the central control unit 5 via the wiring cable 70, and is used for controlling an image forming operation and the like. In this embodiment, a wire harness is used as the distribution cable 70.

By the way, as shown in FIGS. 3 to 4 and 6 to 7, the first distribution cable 71 in this embodiment
The registration position confirmation switch 60 and the paper presence / absence detection sensor 61 disposed in the hollow portion of the tray 51 are routed in the hollow portion of the first tray 51, pass through the hollow portion of the support arm portion 52, and finally, are supported. The wiring is drawn out to be exposed to the outside of the tray through the hollow penetrating portion 54a of the rotating shaft 54 on the tip end side of the arm 53.

That is, a characteristic is that the cable portion 71a of the first wiring cable 71 between the apparatus main body 1 and the paper storage tray 50 is routed through the hollow through portion 54a of the rotating shaft 54. Hollow penetration part 5 of rotating shaft 54
Reference numeral 4a denotes a substantially hollow cylindrical space, which has a space sectional shape sufficiently larger than the thickness of the distribution cable 71a. The connector 73 is attached to the tip of the first wiring cable 71 pulled out from the rotation shaft 54.

On the other hand, the second wiring cable 72 is routed from the central control unit 5 to the vicinity of the bearing 3 formed on the tray mounting unit 2 of the apparatus main body 1 after being routed inside the apparatus main body 1. The connector 74 is attached to the distal end.

Then, such a first wiring cable 71
The second wiring cable 72 is connected to the second wiring cable 72 by connecting the connectors 73 and 74 in an empty space near the rotating shaft 54.

In the sheet storage tray 50 having the above-described configuration, the recording sheets P (PP) to be used are placed on the first tray 51 and the second tray 52 along the sheet feeding and conveying direction X. At the same time, the paper-side end is used by being housed in a state where it is aligned with the standard registration guide plate 55 and the like by the regulating plate 57.

At this time, the recording paper P stored in the tray
Is a position confirmation switch 60 and a paper presence / absence detection sensor 61
As a result, the registration position is confirmed and its presence is detected. Each of these detection signals is transmitted to the wiring cable 7
0 is sent to the control device 5 side of the apparatus main body 1 side.

When the stored recording paper P is fed from the paper storage tray 50, the apparatus body 1
Paper feed mechanism (feed roll,
The sheet is fed one by one to the apparatus main body 1 in accordance with the image forming timing by a nudger roll, a retard roll, a paper lift-up mechanism, or the like.

In the sheet storage tray 50, the wiring cable portion 70 (71a) between the storage tray 50 and the tray mounting portion 2 of the apparatus main body 1 is not exposed to the outside, and the external appearance of the wiring is good. Is done. For this reason, the wiring of the wiring cable portion does not need to be carried out with difficulty in the outside of the tray as in the prior art described above, and the maintenance, assembly, space and the like are greatly improved.

The paper storage tray 50 is connected to the rotating shaft 5.
Even if it swings around 4, the wiring cable portion does not fluctuate (deformation in an unreasonable state such as bending, twisting, rotation, etc.) with the swinging operation, so there is no danger of disconnection, etc. Excellent in terms of conservation. Moreover, since the wiring cable 70 is not exposed to the outside or the like as described above, there is no danger that the wiring cable 70 will be caught by an object or that the wiring cable 70 will be bent to impair the appearance. As described above, highly reliable performance can be obtained in terms of safety and appearance.

Further, there is no need to cover the distribution cable 70 with a tube or a cover, and there is no need to select and use a special cable which is hardly broken, which is advantageous in that the cost can be reduced accordingly.

[Other Embodiments] In the first embodiment, the first
The connection between the wiring cable 71 and the second wiring cable 72 is made in the empty space near the bearing 3 of the rotating shaft 54 by the connector 7.
Although the description has been given of the case where the connection is made by connecting the 3, 74 with each other, when it is not possible to secure a space or a position for connecting the cable by such a connection of the connector, for example, as shown in FIGS. Alternatively, the connectors 73 and 74 may be provided at predetermined positions on the axis of the rotating shaft 54 so as to be coupled and disconnected with the attaching and detaching operation of the rotating shaft 54 with the bearing 3.

In this example, the connector 73 on the first wiring cable 71 side is provided so as to be fixed to the end 54a of the rotating shaft via a locking projection 75a, and the connector 74 on the second wiring cable 72 side. Is rotatably provided at a portion 4 on the bearing 3 side facing the end portion 54b of the rotating shaft via a mounting member 76 having a locking projection 76a. A positioning pin 76b is formed on the coupling surface side of the mounting member 76, while a positioning pin 76b is formed on the mounting member 75 side.
A positioning hole 75b into which b is inserted is formed.

Thus, when the paper storage tray is mounted on the apparatus main body, when the rotary shaft 54 on the tray side is fitted into the bearing 3 and mounted, the connector 73 on the rotary shaft 54 side is interlocked with the mounting operation. Is connected to the connector 74 on the part 4 side on the bearing 3 side. The connected state is determined by the positioning pins 76b and the positioning holes 75b, and is maintained while the rotating shaft 54 is mounted on the bearing 3. Conversely, if the rotating shaft 54 on the tray side is removed from the bearing 3 when the paper storage tray is removed from the apparatus main body, the connector 73 on the rotating shaft 54 is connected to the bearing 3 side in conjunction with the removal operation. Connector 4 on the part 4 side
Disconnected from 4. Therefore, in this case, the connection of the wiring cables 71 and 72 is performed in conjunction with the attachment / detachment operation of the sheet storage tray, which is extremely convenient.

In the first embodiment, the distribution cable 70
As an example, when a wire harness is used, for example, when an electrical component having a large amount of detection information, such as a paper size detection sensor, is provided on a paper storage tray, a large number of electrical components are provided as shown in FIG. Film-shaped flat cable (flat cable) 7 with wires formed
7 can be used. Even with such a flat cable 77 having a width as compared with the wire-type cable, it is possible to wire the hollow through portion 54a of the rotating shaft 54 in a state of being rounded along the inner wall surface of the through portion. It is possible. Therefore, in this case, even if an electric component having a large amount of detected information is disposed on the sheet storage tray, the wiring between the electric component and the apparatus main body side may be changed.
Can be performed in the same manner.

Further, in the first embodiment, the distribution cable 7
Although the case where 0 is passed through the hollow through portion of one of the rotating shafts 54 is shown, in the present invention, it is of course possible to wire the rotating shafts 54 on both sides through the wiring cable 70. In this case,
Since the number of wiring paths increases, new electric components can be additionally arranged on the sheet storage tray.

Further, in the first embodiment, the case where the sheet accommodating tray is a sheet accommodating structure is exemplified. However, the present invention is similarly applicable to a sheet accommodating unit which is swingably mounted on the main body and has electric components. Applicable.

For example, as shown in FIG. 11, a document reading device (a device incorporated in the main body of an image forming apparatus such as a copier, a document reading device separate from the image forming device, etc.)
The present invention can also be applied to a document feeder 80 that is swingably mounted on a document reading table (platen) in 1. That is, the document feeder 80 also has a document tray 81 for storing a document (paper) and an electric component 82 for detecting the presence / absence and size of the document is provided. The wire-type wiring cable 70 (or the flat cable 77) with the main body 1 can be routed through the hollow through portion of the rotary shaft 84 having a hollow through structure in the mounting portion of the document feeder 80. As a result, the wiring cable 70 is not exposed and protrudes behind the document feeder 80, and is not subjected to deformation (bending or the like) accompanying the swinging operation of the document feeder 80. The effect is obtained.

Further, according to the present invention, a rotating shaft such as a continuously rotating movable shaft may have a hollow structure, and a wiring cable may be wired inside the hollow of the rotating shaft. In this case, it is possible to dispose an electric component such as a sensor (for example, a sensor for detecting a rotation state) inside the hollow of the rotating shaft and wire the electric component and the main body.

[0051]

As described above, according to the paper accommodating structure of the present invention, the rotating shaft for swingably mounting the structure on the main body has a hollow structure, and the wiring cable is passed through the hollow through portion. In particular, the wiring of the wiring cable located between the structure and the main body can be reduced to a shape ideal for safety, maintenance, assembly, appearance, space, etc. with a simple configuration. Can be performed to a satisfactory degree.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a color image forming apparatus equipped with a sheet storage tray according to a first embodiment.

FIG. 2 is a perspective view of a main part showing a sheet storage tray and a part of the apparatus main body.

FIG. 3 is a main part front view showing a sheet storage tray and a part of the apparatus main body.

FIG. 4 is a main part plan view showing a sheet storage tray and a part of the apparatus main body.

FIG. 5 is an explanatory cross-sectional view of a main part showing a configuration and a state of a standard registration guide plate and a wide registration guide plate.

FIG. 6 is a schematic front view mainly showing a rotating shaft and a wiring cable;

FIG. 7 is a schematic sectional view taken along the line QQ in FIG. 6;

FIG. 8 is a schematic cross-sectional view showing another example of the connector of the distribution cable, showing a state when the rotating shaft is removed from the bearing.

FIG. 9 is a schematic cross-sectional view showing another example of the connector of the distribution cable, showing a state in which the rotating shaft is mounted on a bearing.

FIG. 10 is an essential part perspective view showing a state where a flat cable is passed through a hollow through portion of the rotating shaft.

FIG. 11 is a perspective view of a main part showing a document feeder to which the present invention is applied.

FIG. 12 is a schematic diagram showing an example of a conventional paper storage tray, and wiring examples of wiring cables for electrical components on the tray and the main body.

[Description of Signs] 1 ... body, 3 ... bearing, 4 ... part on bearing side, 50 ... paper storage tray (paper storage structure), 54 ... rotating shaft, 54a ...
Hollow penetration part, 60: register position confirmation switch, 61: paper presence / absence detection sensor, 70: wiring cable (wire type cable), 71: first wiring cable, 72: second wiring cable, 73, 74: connector, 77 ... Flat cable,
80: Document feeder (paper storage structure), 82: Electrical parts, T: Toner image, P: Recording paper.

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Claims (4)

[Claims] 1. A sheet accommodating structure which is swingably mounted on a main body to be mounted via a rotating shaft and a bearing thereof, and in which an electric component connected to the main body by a wiring cable is provided. A paper storage structure, wherein the shaft has a hollow through structure, and the wiring cable is wired in the hollow through portion of the rotating shaft. 2. The sheet storage structure according to claim 1, wherein the distribution cable is at least one of a wire cable and a flat cable. 3. The structure according to claim 1, wherein the wiring cable is divided into a wiring cable on the main body side and a wiring cable on the electric component side and connected by a connector. In addition, each connector of the wiring cable on the electric component side is separately arranged at an end of the rotating shaft and a portion of the bearing side opposed to the end, and accompanying the attaching and detaching operation of the rotating shaft with the bearing. A sheet accommodating structure, wherein the sheet accommodating structure is configured to be combined and separated. 4. The paper storage structure according to claim 1, wherein the paper storage structure is at least one of a paper storage tray and a document storage and transfer device mounted on an image forming apparatus for forming a toner image. Characteristic paper storage structure.