JP2000063000A - Image output device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image output device capable of detecting the size of set paper easily and precisely. SOLUTION: When the recording paper set at a recording paper storage part 2 is kept by an X-direction side fence and a Y-direction side fence, this image output device 1 irradiates a Mylar X portion 11 and Mylar Y portion 12 which are in the moving direction of the side fence 21, 23 and whose reflectance ratio are different from each other from an information retrieval sensor X portion 13 and an information retrieval sensor Y portion 14 mounted on the X-direction side fence and a Y-direction side fence, and receives reflected light to output an analog X-direction position signal and a Ydirection position signal corresponding to the amount of reflected light to an A/D converting part 3. The A/D converting part 3 digital-converts the X-direction position signal and the Y-direction position signal and outputs them to a main control part 4. The main control part 4 detects the size of the recording paper from the X-direction position signal and the Y-direction position signal, displays the size of the recording paper on a display outputting part 5 and voice-outputs it to a voice outputting part 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image output device, and more particularly, to an image output device that accurately detects the size of a set sheet.

[0002]

2. Description of the Related Art In an image output apparatus such as a facsimile machine, a copying machine and a printer, a plurality of recording papers are stored in a paper feed unit, for example, a paper feed cassette, and one paper is fed from the paper feed cassette by a paper feed roller. The recording paper is fed out one by one, and the image is recorded on the recording paper.

In such an image output device, the size of the recording paper set in the paper feed unit of the image output device is determined by appropriately recording and outputting the image on the recording paper. is important.

Therefore, in the conventional image output apparatus, a recording paper size component for making the image output apparatus recognize the recording paper size is prepared for each recording paper size, and the operator supplies the recording paper size component to the paper feeding unit of the image output apparatus. When setting the recording paper, the recording paper size component corresponding to the recording paper size is set in the image output device, and the sensor detects the type of the recording paper size component that is set, and the image output device Some recognize the size of the recording paper set in.

Further, conventionally, in the vicinity of the conveyance path of the recording paper,
There has been proposed a facsimile apparatus provided with a recording paper information recognizing means for recognizing the paper size and the like of the recording paper (Japanese Patent Laid-Open No. Hei 3 (1999) -311).
See Japanese Patent Publication No. 96060). Therefore, according to this facsimile apparatus, once the recording paper is passed,
The paper size of the recording paper can be detected by the recording paper information recognition means.

[0006]

However, such a conventional image output device still needs improvement in order to accurately and easily detect the size of the set paper.

That is, in the conventional image output device for detecting the recording paper size of the recording paper set by the recording paper size component, when the size of the recording paper set in the image output device is changed, It is necessary to set the recording paper size parts corresponding to the recording paper size each time, and it is troublesome.If you forget to set the recording paper size parts, you will recognize the wrong recording paper size. There was a problem that it was not possible to make a good recording.

Further, in the facsimile apparatus described in Japanese Patent Laid-Open No. 3-96060, it is necessary to pass the recording paper once in order to recognize the recording paper size, which is troublesome and causes the recording paper to pass. It is not an appropriate method today because the recording paper is wasted and resource saving is demanded.

Therefore, according to the first aspect of the present invention, light is reflected along the moving direction of at least one side fence of the pair of side fences that holds both ends in the width direction of the sheet in the case that stores the sheet. The width direction mylar member whose rate or transmittance sequentially changes in the moving direction is arranged, and the side fence in which the width direction mylar member is arranged moves along with the movement of the side fence to become the width direction mylar member. A width direction position detecting means for projecting light and detecting the reflected light or the transmitted light is arranged, and the reflectance or transmittance of the light along the moving direction of the end fence holding the rear end of the paper in the length direction. Arranges a length direction mylar member that sequentially changes in the moving direction, moves with the movement of the end fence, projects light on the length direction mylar member, and detects its reflected light or transmitted light Arranged a longitudinal position detection means that,
By determining the paper size of the paper set in the case based on the detection result of the width direction position detection means and the length direction position detection means, without setting the recording paper size parts as in the conventional case, In addition, the paper size can be detected easily and accurately by simply holding the paper properly by the side fences and end fences without passing the paper once, and recording the image appropriately. It is an object of the present invention to provide an image output device that can be used and has good usability.

According to a second aspect of the present invention, the analog position detection signals output by the width direction position detecting means and the length direction position detecting means are digitally converted by the A / D converting means to correspond to the positions of the side fence and the end fence. It is an object of the present invention to provide an image output device capable of more accurately determining a paper size with a simpler configuration by converting the position detection signal into the position detection signal and determining the paper size based on the digital position detection signal. I am trying.

According to the third aspect of the present invention, the discriminating paper size is displayed on the display means so that the paper size of the set paper can be seen at a glance by the operator and the usability can be improved. An object is to provide an image output device.

According to the fourth aspect of the present invention, the discriminated sheet size is output in a loud voice so that the sheet size of the set sheet can be more accurately recognized by the operator and the usability is further improved. It is an object of the present invention to provide an image output device capable of performing the above.

[0013]

According to the image output apparatus of the present invention, a plurality of sheets are stored in a predetermined case, and both widthwise end portions of the sheet can be moved in the widthwise direction. It is held by a pair of side fences that are arranged in the same direction, and the rear end portion in the length direction of the paper is held by an end fence that is movably arranged in the length direction, and is held by these side fences and end fences. In the image output device that separates and conveys the formed sheets one by one in the length direction front end direction to record an image, in at least one side fence of the pair of side fences in the moving direction. A width direction mylar member that is arranged along the width direction mylar member whose reflectance or transmittance changes sequentially in the moving direction, and a side fence that is provided with the width direction mylar member. A width direction position detecting means that moves with the movement of the id fence and projects light on the width direction mylar member to detect reflected light or transmitted light thereof, and is disposed along the moving direction of the end fence. A length direction mylar member whose reflectance or transmittance of light sequentially changes in the moving direction, and a light which is provided on the end fence and moves with the movement of the end fence to project light on the length direction mylar member. Length direction position detecting means for detecting reflected light or transmitted light thereof, and the sheet of paper set in the case based on the detection results of the width direction position detecting means and the length direction position detecting means. The above object is achieved by including a control unit that determines the size.

According to the above configuration, the reflectance or the transmittance of light is along the moving direction of at least one side fence of the pair of side fences that holds the both ends of the sheet in the width direction in the case that stores the sheet. Arranges a width direction mylar member that sequentially changes in the moving direction, and moves along with the movement of the side fence to the side fence on which the width direction mylar member is arranged to project light on the width direction mylar member. A position detecting means for detecting the reflected light or the transmitted light thereof is arranged, and the light reflectance or the light transmittance along the moving direction of the end fence holding the rear end of the paper in the length direction is the moving direction. The length direction that arranges the length direction mylar member that changes in sequence and moves with the movement of the end fence to project the light on the length direction mylar member and detect the reflected light or the transmitted light. Since the position detection means is provided and the paper size of the paper set in the case is determined based on the detection results of the width direction position detection means and the length direction position detection means, the recording paper is different from the conventional one. The paper size of the loaded paper can be detected easily and accurately without setting the size parts and without passing the paper once, just by holding the paper properly by the side fence and the end fence. Therefore, it is possible to appropriately record an image and improve the usability of the image output device.

In this case, for example, as described in claim 2, the width direction position detection means and the length direction position detection means output the detection result as an analog position detection signal, and the image output device. Is an A / D converter for converting the analog position detection signals output by the width direction position detection means and the length direction position detection means into digital position detection signals corresponding to the positions of the side fences and the end fences. The control means may further include means, and the control means may determine the paper size based on the digital position detection signal converted by the A / D conversion means.

With the above arrangement, the analog position detection signals output from the width direction position detecting means and the length direction position detecting means are converted to digital positions corresponding to the positions of the side fence and the end fence by the A / D converting means. Since the paper size is converted into a detection signal and the paper size is determined based on the digital position detection signal, the paper size can be more accurately determined with a simpler configuration.

Further, for example, as described in claim 3, the image output device further comprises a predetermined display means, and the control means causes the display means to display the determined paper size. May be.

According to the above construction, since the discriminating paper size is displayed on the display means, it is possible for the operator to see the paper size of the set paper at a glance, and the availability of the image output device is improved. It can be further improved.

Further, for example, as described in claim 4, the image output device further comprises a voice output means for outputting a predetermined voice in a loud voice, and the control means outputs the discriminated sheet size by the voice output. It may be one that causes the means to output a loud sound.

According to the above construction, since the discriminated paper size is output in a loud voice, the paper size of the set paper can be more accurately recognized by the operator, and the availability of the image output device is improved. It can be further improved.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below are preferred embodiments of the present invention, and therefore have various technically preferable limitations. However, the scope of the present invention refers to the present invention particularly in the following description. Unless otherwise stated, the present invention is not limited to these embodiments.

1 to 6 are views showing an image output apparatus to which an embodiment of the image output apparatus of the present invention is applied, and FIG. 1 shows an embodiment of the image output apparatus of the present invention. FIG. 3 is a block diagram of a main part of the image output device 1 described above.

In FIG. 1, the image output device 1 includes a recording paper storage unit 2, an A / D conversion unit 3, a main control unit 4, a display output unit 5, a display output content storage unit 6, an audio output unit 7 and an audio output. A plurality of recording papers (papers) set in the recording paper storage unit 2 are sequentially separated one by one and conveyed to a recording unit (not shown), which includes a content storage unit 8 and the like. Record and output to.

The recording paper storage unit 2 includes a mylar X unit 11, a mylar Y unit 12, an information detecting sensor X unit 13, an information detecting sensor Y unit 14, and the like. That is, as shown in FIG. 2, the recording paper storage unit 2 has a paper feed cassette (case) 20 formed in a box shape with an open upper portion (not shown), in the width direction of the paper feed cassette 20 (X direction: A pair of X-direction side fences 21, 2 facing each other in the vertical direction of FIG. 2).
2 are provided, and the X-direction side fences 21 and 22 are provided.
Are connected by a connection mechanism (not shown), and are arranged so as to be movable in a direction in which they approach each other and a direction in which they separate from each other, depending on the size of the recording paper stored in the paper feed cassette 20.

The paper feed cassette 20 is located between the X-direction side fence 21 and the X-direction side fence 22 in the lengthwise direction of the paper feed cassette 20 (Y Direction: left-right direction in FIG. 2) A Y-direction side fence (end fence) 23 is arranged on the rear side, and the Y-direction side fence 23 corresponds to Y in accordance with the size of the recording paper stored in the paper feed cassette 20. It is arranged so that it can move in any direction.

One of the X-direction side fences 21, 22,
For example, an information detecting sensor X section (width direction position detecting means) 13 is arranged on the rear surface of the X direction side fence 21, and below the information detecting sensor X section 13, the X direction, that is, , X direction side fence 21 over a predetermined length in the moving direction Mylar X section (width direction mylar member) 1
1 is provided.

Although not shown in detail, the information detecting sensor X section 13 includes a light emitting element and a light receiving element. As shown in FIG. 3, the light emitting element emits light in a direction substantially perpendicular to the mylar X section 11. And the reflected light from the mylar X section 11 is received by the light receiving element. The mylar X section 11 is subjected to a surface treatment so that the light reflectance thereof is sequentially changed in the X direction, and the mylar X section 11 is provided with the information detecting sensor X.
The light projected from the light emitting element of the section 13 is reflected corresponding to the light reflectance of the Mylar X section 11 at the position where the light is projected, and the reflected light is received by the light receiving element of the information detecting sensor X section 13. To receive light. Therefore, the information detecting sensor X unit 13
As shown in FIG. 3, while moving with the movement of the X-direction side fence 21, light is projected onto the Mylar X unit 11 at the moved position, and the Mylar X unit 1 at the position is moved.
The amount of reflected light corresponding to the reflectance of 1 is received, the position of the X-direction side fence 21 is detected by a change in the amount of reflected light, and A / D conversion is performed as an analog X-direction position signal (position detection signal). Output to the part 3.

On the rear surface of the Y-direction side fence 23, an information detecting sensor Y portion (length direction position detecting means) is provided.
14 is provided, and the side fence 23 in the Y direction, that is, the Y direction, is provided below the information detecting sensor Y unit 14.
The mylar Y portion (longitudinal mylar member) 12 is arranged over a predetermined length in the moving direction of the.

Like the information detecting sensor X section 13, the information detecting sensor Y section 14 is provided with a light emitting element and a light receiving element. As shown in FIG. 3, the light emitting element is a mylar Y section 12.
The light in the substantially vertical direction is projected onto the light receiving element and the reflected light from the mylar Y portion 12 is received by the light receiving element. And mylar Y part 12
Is subjected to a surface treatment so that its light reflectance is sequentially changed in the Y direction, and the light projected from the light emitting element of the information detecting sensor Y section 14 is applied to the mylar Y section 12.
The light is reflected by the Mylar Y unit 12 at the position where the light is projected, and the reflected light is received by the light receiving element of the information detecting sensor Y unit 14. Therefore, as shown in FIG. 3, the information detecting sensor Y unit 14 moves along with the movement of the Y-direction side fence 23, and projects light to the mylar Y unit 12 at the moved position, The reflected light of the light amount corresponding to the reflectance of the mylar Y portion 12 at the position is received, the position of the Y-direction side fence 23 is detected by the change of the light amount of the reflected light, and the analog Y-direction position signal (position detection signal) is obtained. Output to the A / D conversion unit 3.

Referring again to FIG. 1, the A / D converter (A / D
The D conversion means 3 includes an analog X-direction position signal input from the information detecting sensor X section 13 and the information detecting sensor Y.
The analog Y-direction position signal input from the unit 14 is digitally converted and output to the main control unit 4 as a digital X-direction position signal and a Y-direction position signal. That is, A
The / D conversion unit 3 includes an analog / digital position data conversion table as shown in FIG. 4, and, for example, the analog X-direction position signals Xa, Xb, Xc, and Xd are respectively converted into digital X-direction position signals ( D0, D1) =
Analog Y-direction position signals Ya, Yb, Yc, and Yd are added to (0, 0), (0, 1), (1, 0), and (1, 1), respectively, and digital Y-direction position signals (D2, D3) =
Convert to (0,0), (0,1), (1,0), (1,1).

The main control section (control means) 4 is a CPU (Cent).
ral Processing Unit), ROM (Read Only Memory)
And ROM (Random Access Memory)
Inside, various processing programs such as a basic processing program as the image output apparatus 1 and a recording paper size detection processing program which will be described later are stored, and various processing such as basic processing and recording paper size detection processing are performed. It stores various necessary system data and the like. The main control unit 4 controls each unit of the image output apparatus 1 while the CPU uses the RAM as a work memory based on the program in the ROM, executes the basic processing as the image output apparatus 1, and records as described later. Various types of processing such as paper size detection processing are executed. In particular, in the ROM, position data / recording paper size conversion table of digital X-direction position signals (D0, D1) and digital Y-direction position signals (D2, D3) and recording paper size as shown in FIG. Is stored, and the main control unit 4 refers to this position data / recording paper size conversion table and inputs X from the A / D conversion unit 3.
Direction position signals (D0, D1) and Y direction position signals (D2,
The recording paper size is detected from D3).

The display output unit (display means) 5 is an LCD (Li
A quid crystal display) or the like is used and operates under the control of the main control unit 4 to display and output various kinds of information, especially the detected recording paper size.

The display output content storage unit 6 stores the display data of the display output unit 5, particularly the display data of the recording paper size.

The audio output section (audio output means) 7 is composed of a speaker, an amplifier, etc., and operates under the control of the main control section 4 to output various kinds of information, in particular, the detected recording paper size by audio. .

The audio output content storage unit 8 stores various audio information output from the audio output unit 7, in particular, audio data of the detected recording paper size.

Next, the operation of this embodiment will be described. The image output apparatus 1 may be a recording sheet in which the size of the recording sheet already set in the image output apparatus 1 and the recording sheet in which the recording sheet is newly set in the image output apparatus 1 or the recording sheet already set in the image output apparatus 1 may be replaced and set. The feature is that the size of the recorded recording paper is easily and accurately detected.

That is, when a recording sheet is newly set in the image output apparatus 1 or replaced and the recording sheet is set in the sheet feeding cassette 20 of the recording sheet storage unit 2, the operator first sets the X-direction side fences 21, 22 and Y. Direction side fence 23
Move to a position according to the size of the chart paper to set
The recording paper is set according to the direction side fences 21 and 22 and the Y direction side fence 23.

In the image output apparatus 1, when the recording paper is set in this way, the main control unit 4 causes the information detecting sensor X unit 13 and the information detecting sensor Y to operate as shown in FIG.
The light emitting elements of the section 14 are caused to emit light (step S1), and the Mylar X section 11 and the Mylar Y section 12 are irradiated with light from the light emitting elements of the information detecting sensor X section 13 and the information detecting sensor Y section 14 to cause the Mylar X section. The light reflected by the section 11 and the mylar Y section 12 is received by the light receiving elements of the information detecting sensor X section 13 and the information detecting sensor Y section 14 (step S2).

At this time, as described above, mylar X section 11
And the mylar Y part 12 is a side fence 21, 2 in the X direction.
Since the surface treatment is performed so that the light reflectance sequentially changes in the moving direction of the 2 and Y direction side fences 23, the information detecting sensor X unit 13 and the information detecting sensor Y unit 14 are provided.
The amount of light incident on the light receiving element corresponds to the set positions of the X-direction side fences 21, 22 and the Y-direction side fence 23, and the information detection sensor X unit 13 and the information detection sensor Y unit 14 Outputs an analog X-direction position signal and Y-direction position signal corresponding to the amount of light received by the light receiving element to the A / D converter 3.

Next, the main control section 4 includes an information detecting sensor X section 13 and an information detecting sensor Y section 14 in the A / D conversion section 3.
The analog X-direction position signal and Y-direction position signal input from the A / D converter are digitally converted (step S4).
The conversion unit 3 converts the analog X-direction position signal and Y-direction position signal into a digital X-direction position signal (D0, D1) and a Y-direction position signal based on the analog / digital position data conversion table shown in FIG. It is converted to (D2, D3) and output to the main controller 4 (step S5).

The main controller 4 controls the position data / position shown in FIG.
The A / D conversion unit 3 is referred to by referring to the recording paper size conversion table.
Digital data processing for detecting the recording paper size is carried out from the X-direction position signals (D0, D1) and the Y-direction position signals (D2, D3) inputted from (step S6).

Next, the main control unit 4 reads the display data corresponding to the detected recording paper size from the display output content storage unit 6 and causes the display output unit 5 to display and output the recording paper size (step S7). ) Further, the audio data corresponding to the recording paper size is read from the audio main content storage unit 8 and is output to the audio output unit 7 as audio (step S).
8).

As described above, the image output apparatus 1 according to the present embodiment has the X-direction side fence 2 out of the pair of X-direction side fences 21 and 22 that holds the widthwise ends of the recording paper.
The mylar X section 11 in which the reflectance of light sequentially changes in the moving direction is arranged along the moving direction of 1, and the mylar X part is moved to the X direction side fence 21 along with the movement of the X direction side fence 21. An information detecting sensor X section 13 that projects light onto the section 11 and detects the reflected light is provided, and light is emitted along the moving direction of the Y-direction side fence 23 that holds the lengthwise rear end of the recording paper. The Mylar Y section 12 whose reflectance changes sequentially in the moving direction is provided, and the Y direction side fence 23
An information detection sensor Y section 14 that moves with the movement of the light source to project light to the mylar Y section 12 and detects the reflected light, and the information detection sensor X section 13 and the information detection sensor Y section are provided. Based on the detection result of 14, the paper size of the recording paper set in the paper feed cassette 20 is determined.

Therefore, it is possible to properly set the recording paper by the X-direction side fences 21 and 22 and the Y-direction side fence 23 without setting the recording paper size parts and passing the paper once unlike the conventional case. By simply holding the recording paper, the recording paper size of the recording paper set in the paper feed cassette 20 can be detected easily and accurately, an image can be recorded appropriately, and the usability of the image output device 1 can be improved. Can be improved.

Further, the image output device 1 of the present embodiment is
Information detecting sensor X section 13 and information detecting sensor Y section 1
The analog X-direction position signal and Y-direction position signal output by the A.D.
22 and the X direction position signal (D0, which is a digital position detection signal corresponding to the positions of the Y direction side fence 23).
D1) and Y direction position signals (D2, D3), and the main control unit 4 converts the digital X direction position signals (D0, D).
The recording paper size is determined based on 1) and the Y-direction position signal (D2, D3). Therefore, the recording paper size can be more accurately determined with a simpler configuration.

Further, since the image output apparatus 1 displays the discriminated recording paper size on the display output section 5, the operator can know at a glance the recording paper size of the recording paper set in the paper feeding cassette 20. Thus, the usability of the image output device 1 can be further improved.

Further, since the image output device 1 outputs the discriminated recording paper size by voice from the audio output section 7, the recording paper size of the recording paper set in the paper feeding cassette 20 is further increased by the operator. The image output device 1 can be accurately recognized, and the usability of the image output device 1 can be further improved.

Although the invention made by the present inventor has been specifically described based on the preferred embodiments, the present invention is not limited to the above, and various modifications can be made without departing from the scope of the invention. It goes without saying that it is possible.

For example, in the above embodiment, the mylar X part 11 and the mylar Y part 12 having different reflectances are used, and the mylar X part 11 and the information detecting sensor X part 13 and the mylar X part 11 are used. The position is detected by the light amount of the light reflected by the mylar Y part 12, but the mylar X part 11 and the mylar Y part 12 are not limited to those having different reflectances, and, for example, have different transmittances. It is also possible to use a sensor X unit 1 for detecting information in this case.
The position detection is performed by the light amount of the light transmitted by the mylar X part 11 and the mylar Y part 12 by the information detection sensor Y part 14.

[0050]

According to the image output apparatus of the first aspect of the present invention, the moving direction of at least one of the pair of side fences that holds both widthwise end portions of the sheet in the case for storing the sheet. A widthwise mylar member whose reflectance or transmittance of light sequentially changes in the moving direction is arranged along with, and the side fence in which the width direction mylar member is arranged moves along with the movement of the side fence. A width direction position detecting means for projecting light to the width direction mylar member and detecting the reflected light or the transmitted light is provided, and the light is transmitted along the moving direction of the end fence that holds the rear end of the paper in the length direction. A longitudinal direction mylar member whose reflectance or transmissivity sequentially changes in the moving direction is provided, and it moves with the movement of the end fence to project light on the longitudinal direction mylar member, and the reflected light or A lengthwise position detecting means for detecting transmitted light is provided, and the paper size of the paper set in the case is determined based on the detection results of the widthwise position detecting means and the lengthwise position detecting means. Therefore, without setting the recording paper size parts as in the past, and without holding the paper once, simply holding the paper properly by the side fence and the end fence, the paper of the set paper is set. The size can be detected easily and accurately, an image can be appropriately recorded, and the usability of the image output device can be improved.

According to the second aspect of the image output apparatus, the analog position detection signals output by the width direction position detecting means and the length direction position detecting means are converted into side fences and end fences by the A / D converting means. Since it is converted into a digital position detection signal corresponding to the position of and the paper size is determined based on the digital position detection signal, the paper size can be more accurately determined with a simpler configuration.

According to the image output apparatus of the third aspect of the present invention, since the discriminating paper size is displayed on the display means, the paper size of the set paper can be seen at a glance by the operator. The usability of the image output device can be further improved.

According to the image output apparatus of the present invention as defined in claim 4, the discriminated paper size is output by voice amplification, so that the paper size of the set paper can be more accurately recognized by the operator. The usability of the image output device can be further improved.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of an image output device to which an embodiment of an image output device of the present invention is applied.

FIG. 2 is a top view of a recording paper storage unit of the image output apparatus of FIG.

FIG. 3 is an X-direction side fence, a Y-direction side fence, an information detection sensor X unit, and an information detection sensor Y in FIG.
FIG. 3 is a side view showing the positional relationship between the section, the Mylar X section, and the Mylar Y section.

FIG. 4 is a diagram showing an example of an analog / digital position data conversion table stored in the A / D conversion unit in FIG.

FIG. 5: Position data / stored in the main control unit of FIG.
The figure which shows an example of a recording paper size conversion table.

6 is a flowchart showing recording paper size detection processing by the image output apparatus of FIG.

[Explanation of symbols]

1 Image output device 2 Recording paper storage 3 A / D converter 4 Main control unit 5 Display output section 6 Display output content storage 7 Audio output section 8 Voice output content storage 11 Myra X part 12 Myra Y section 13 Information detection sensor X section 14 Information detection sensor Y section 20 paper cassettes 21, 22 X-direction side fence 23 Y-direction side fence

Claims (4)

[Claims] 1. A plurality of sheets of paper are stored in a predetermined case, and both ends of the paper in the width direction are held by a pair of side fences movably arranged in the width direction. The rear end portion in the length direction is held by an end fence movably arranged in the length direction, and the sheets held by the side fence and the end fence are separated one by one in the front end direction in the length direction. In an image output device that conveys and conveys an image to record an image, at least one side fence of the pair of side fences is disposed along the moving direction, and the reflectance or the transmittance of light is the moving direction. The width direction mylar member and the width direction mylar member provided on the side fence in which the width direction mylar member is disposed and moved along with the movement of the side fence. A width direction position detecting means for projecting light on a material and detecting reflected light or transmitted light thereof, and light reflectance or transmittance arranged along the moving direction of the end fence are sequentially changed in the moving direction. A length direction mylar member and a length direction position provided on the end fence, which moves with the movement of the end fence, projects light on the length direction mylar member, and detects reflected light or transmitted light thereof. A detection unit; and a control unit that determines the sheet size of the sheet set in the case based on the detection results of the width direction position detection unit and the length direction position detection unit. Characteristic image output device. 2. The width direction position detection means and the length direction position detection means output the detection result as an analog position detection signal, and the image output device, the width direction position detection means and the length. The control means further includes A / D conversion means for converting the analog position detection signal output from the direction position detection means into a digital position detection signal corresponding to the positions of the side fence and the end fence. The image output apparatus according to claim 1, wherein the paper size is determined based on a digital position detection signal converted by the / D conversion means. 3. The image output device further comprises a predetermined display means, and the control means causes the display means to display the determined paper size. Image output device. 4. The image output device further comprises a voice output means for outputting a predetermined voice in a loud voice, and the control means causes the voice output means to perform a loud voice output of the discriminated sheet size. The image output device according to any one of claims 1 to 3.