JP2003091226A - Image forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the cleaning of an optical system by unitizing 1st and 2nd mirrors and an image forming lens being an optical system so that the unit can be exchanged and also constituting the unit so as to be opened/closed to an image forming device main body, and to miniaturize the optical system so that the image forming device main body may be miniaturized. SOLUTION: This image forming device is equipped with a cabinet cover unit 14 having a control panel part, and an optical system incorporating unit 11 incorporating a scanner part 7 and having a separation roller 15 carrying an original to the cover glass of the scanner part 7. The unit 11 can be opened/ closed, and the unit 14 is provided to be opened/closed so that the unit 11 may be exposed when the unit 14 is opened. An original carrying path is provided between the units 14 and 11 in order to read the original by the scanner part 7, and a recording paper carrying path for recording paper already recorded by a recording part 1 is provided between the unit 11 and the device main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus integrally having a plurality of functions such as a printer function, a copying function and a scanner function.

[0002]

2. Description of the Related Art In recent years, there has been an image forming apparatus in which a printer, a scanner and the like are integrated and used by connecting to a computer, a telephone line and the like. Each of these parts is compounded,
It is an image forming apparatus that integrates multiple functions such as a printer function, a copying function, and a scanner function.

Usually, in the above-mentioned multi-functional image forming apparatus, a function selecting button provided on the operation unit is used to select a copying machine or a printer, so that the respective functions are satisfied. Set.

Further, such a multifunctional image forming apparatus main body tends to have a large-sized structure.

By the way, there is a demand for further downsizing of this type of device. Therefore, it is necessary to reduce the size of each component, and it is desired to reduce the size of the optical system including the first and second mirrors, the imaging lens, and the image reading element (CCD element).

Further, as this conventional example, Japanese Patent No. 2684
Japanese Patent No. 363 discloses an image reading device including an optical system including first and second mirrors, an imaging lens, and an image reading element (CCD element).

In this apparatus, an original placed on an original placing table at the upper part of the image reading apparatus main body is placed with its image surface facing downward by original conveying rollers provided on the upstream side and the downstream side of the original placing table. The paper is conveyed, and light is irradiated by an illumination lamp at the image reading position. Then, the image light from the illuminated document is reflected by the first mirror to reach the second mirror, is reflected by the second mirror, and is imaged on the CCD element via the imaging lens. The structure is arranged so that the plane connecting the second mirror, the lens, and the CCD element is substantially parallel to the surface of the original, and the size is reduced.

[0008]

In the case of the above-mentioned conventional example, the conveyed original comes into contact with the original conveying roller, and the original paper dust enters the main body of the apparatus through a slight structural gap around the original conveying roller. , The first and second mirrors to be the optical system,
There is a problem that the surface of the imaging lens becomes dirty and the image cannot be read accurately in accordance with the original image. Also,
Since the optical system is fixed to the main body of the apparatus, it is difficult to clean the optical system.

The present invention has been made in view of the above problems, and it is possible to replace the first and second mirrors and the imaging lens, which are optical systems, by making them into a unit, and to open and close the apparatus main body. It is an object of the present invention to make it easier to clean the optical system and to downsize the optical system and downsize the image forming apparatus main body.

[0010]

An image forming apparatus according to claim 1, wherein the image forming apparatus comprises at least an optical system for reading information of a document and a recording section for recording information on a recording sheet. And a document transport roller for transporting a document placed on a document tray to a document reading unit of the optical system, and the image forming unit of the recording unit is replaceably exposed. An optical system built-in unit portion that is openable and closable with respect to the apparatus main body, and a cabinet cover portion that is openably and closably provided with respect to the optical system built-in unit portion so as to open the document reading portion, The cabinet cover section is provided so as to open and close relative to the apparatus main body simultaneously with the unit section by opening the system built-in unit section. A document transport path for transporting a document for reading a document by the optical system is provided between the optical system built-in unit section and the recording section between the optical system built-in unit section and the apparatus main body. It is characterized in that a recording paper feed path for feeding the subsequent recording paper is provided.

An image forming apparatus according to a second aspect of the present invention is an image forming apparatus including at least an optical system for optically reading information of a document and a recording section for recording information on recording paper.
An optical system built-in unit section provided with a document carrying roller for carrying a document placed on a document tray to a document reading section of the optical system, and provided openably and closably with respect to the apparatus main body, and the optical system built-in unit section And a cabinet cover and an optical system built-in unit for transporting a document from the document tray to a document discharge unit for reading the document by the document reading unit. And a document transport path configured by a section, and the document transport path is opened by opening the cabinet cover section.

An image forming apparatus according to a third aspect of the present invention is an image forming apparatus including at least an optical system for reading information of a document and a recording section for recording information on a recording sheet, the apparatus having the recording section inside. A main body, a document carrying roller for carrying a document placed on a document tray to a document reading section of the optical system, and an optical system built-in unit section provided openably and closably with respect to the apparatus body; A cabinet cover part that is openable and closable with respect to the optical system built-in unit part to open the reading part, and a recording paper printed by the recording part for recording information on the recording paper by the recording part. A recording paper conveyance path constituted by the apparatus main body for discharging to the outside of the apparatus and the optical system built-in unit section is provided, and the optical system built-in unit section is opened upward to move forward. Cabinet cover unit is opened move relative simultaneously the apparatus body and the unit, and the recording sheet conveying path, characterized in that it is open.

An image forming apparatus according to a fourth aspect of the present invention is an image forming apparatus including at least an optical system for reading information of a document and a recording section for recording information on a recording sheet, the apparatus having the recording section inside. It has a main body and a document feeding roller that conveys the document placed on the document tray to the document reading section of the optical system, and opens and closes with respect to the apparatus body so as to replaceably expose the image forming unit of the recording section. The optical system built-in unit section is provided, and the optical system built-in unit section is provided, and the cabinet cover section that is opened and closed with respect to the optical system built-in unit section so as to open the document reading section. The cabinet cover section is provided so as to open and close with respect to the apparatus main body simultaneously with the unit section, and the cabinet cover section and the optical system built-in unit are provided. A document transport path for transporting a document for reading the document with the optical system is provided between the recording unit and the printing unit, and the recording sheet after recording by the recording unit is provided between the optical system unit unit and the apparatus main body. When a recording paper transport path for transporting the optical system is provided, the recording section is covered on the recording paper transport path surface side of the optical system built-in unit section, and the optical system built-in unit section is opened and moved, it moves together with the optical system built-in unit section. A member is provided.

An image forming apparatus according to a fifth aspect of the present invention is an image forming apparatus including at least an optical system for reading information of a document and a recording section for recording information on a recording sheet, the apparatus having the recording section inside. It has a main body and a document feeding roller that conveys the document placed on the document tray to the document reading section of the optical system, and opens and closes with respect to the apparatus body so as to replaceably expose the image forming unit of the recording section. The optical system built-in unit section is provided, and the optical system built-in unit section is provided, and the cabinet cover section that is opened and closed with respect to the optical system built-in unit section so as to open the document reading section. The cabinet cover section is provided so as to open and close with respect to the apparatus main body simultaneously with the unit section, and the cabinet cover section and the optical system built-in unit are provided. A recording sheet after recording by the recording section between the optical system built-in unit section and the apparatus main body. And a guide member for guiding the recording paper so that the recording paper is not conveyed to the recording section side, and a guide member for covering the recording section is provided on the recording paper conveyance path surface side of the optical system built-in unit section. The guide member is further characterized in that when the unit part with built-in optical system is moved to open, it moves together with the unit part with built-in optical system.

An image forming apparatus according to a sixth aspect of the present invention is an image forming apparatus including at least an optical system for reading information of a document and a recording section for recording information on a recording sheet, the apparatus having the recording section inside. It has a main body and a document feeding roller that conveys the document placed on the document tray to the document reading section of the optical system, and opens and closes with respect to the apparatus body so as to replaceably expose the image forming unit of the recording section. The optical system built-in unit section is provided, and the optical system built-in unit section is provided, and the cabinet cover section that is opened and closed with respect to the optical system built-in unit section so as to open the document reading section. The cabinet cover section is provided so as to open and close with respect to the apparatus main body simultaneously with the unit section, and the cabinet cover section and the optical system built-in unit are provided. A recording sheet after recording by the recording section between the optical system built-in unit section and the apparatus main body. And a guide member for guiding the recording paper so as not to be wound into the recording unit side and for covering the recording unit, on the recording paper conveyance path surface side of the optical system built-in unit section, The guide member is further characterized in that, when the optical system built-in unit section is opened and moved, the guide member moves together with the optical system built-in unit section.

An image forming apparatus according to a seventh aspect of the present invention is an image forming apparatus including at least an optical system for reading information of a document and a recording section for recording information on recording paper, the apparatus having the recording section inside. It has a main body and a document feeding roller that conveys the document placed on the document tray to the document reading section of the optical system, and opens and closes with respect to the apparatus body so as to replaceably expose the image forming unit of the recording section. An optical system built-in unit provided freely, a cabinet cover part opened and closed with respect to the optical system built-in unit so as to open the document reading part, the cabinet cover part and the optical system built-in An original conveying path for conveying an original for reading the original with the optical system between the unit section and the recording section for recording information on the recording sheet by the recording section. The apparatus main body for ejecting the recording paper printed by the recording unit to the recording paper discharge tray at the upper part of the apparatus main body and the recording paper conveyance path constituted by the optical system built-in unit section are provided, and the optical system built-in unit section The opening of the cabinet cover part causes the cabinet cover part to open and move with respect to the apparatus main body at the same time as the unit part, and the recording paper conveyance path is opened.

[0017]

DETAILED DESCRIPTION OF THE INVENTION An image forming apparatus of the present invention will be described below with reference to the drawings.

FIG. 1 is a view showing the arrangement of an image forming apparatus 100 equipped with the image reading apparatus of the first embodiment.

The recording unit 1 is provided in the central portion of the main body of the apparatus, and the recording paper on the recording paper tray 2 passes through the printer engine based on the print command, and after printing, the recording paper on the paper discharge direction switching lever 3 is moved. Depending on the switching state, the recording paper is discharged to the recording paper discharge tray 4 at the upper part of the apparatus body or the recording paper discharge part 5 at the lower part.

The switching lever 5 is provided with a switching knob 6 provided on the main body of the apparatus so that the recording paper on which the recording paper is printed is conveyed to the recording paper discharge tray 4 or the recording paper discharge unit 5. Switch the transport path to.

The scanner unit 7 which is an optical system for reading a document is provided in the front upper part of the main body of the apparatus. After the scanner document is placed on the document tray 8, the scanner document is read based on a command from the computer. After passing through the scanner engine, the data is taken into the computer, and the scanner document is discharged from the document discharge port 9.

For copying, the scanner unit 7 reads a scanner document and the recording unit 1 prints the data on recording paper.

The scanner unit 7 is built in an optical system built-in unit 11 which is openably and closably provided in the apparatus main body by an open / close shaft 10. The optical system built-in unit 11 is openable and closable by an open / close shaft 12 in a display unit and operation keys. A cabinet cover unit 14 having an operation panel portion (13 in FIG. 2) including the above is provided.

Between the cabinet cover unit 14 and the optical system built-in unit 11 (the surface of the cabinet cover unit 14 on the optical system built-in unit 11 side and the cabinet cover unit 1 of the optical system built-in unit 11).
4) is provided with a document transport path for transporting a document to be read by the scanner section 9, and the optical system built-in unit 1
A recording paper conveyance path for discharging the recording paper printed by the recording unit 1 to the recording paper discharge tray 4 is formed between (the surface of the apparatus main body side) 1 and the apparatus main body.

As for the scanner original, only one original placed on the original tray 8 is separated by the separating roller 15 and the rubber plate 16. At this time, the rubber plate 16 is pressed toward the separation roller 15 side by the rotation of the pressing member 17 and is weighted, and the rubber plate 16 is wound around the separation roller 15 to facilitate separation of the document. The scanner original is conveyed with the image surface facing downward, and light is emitted from the illumination lamp 18 of the scanner unit 7 at the image reading position (image reading unit). Then, the image light from the illuminated document is reflected by the first mirror 19 and reaches the second mirror 20, and is reflected by the second mirror 20 and CC through the imaging lens 21.
An image is formed on the D element 22.

The separation roller 15 rotates relatively slowly so as to separate the scanner originals one by one. On the other hand, a pair of feed rollers 23, which are document conveying rollers provided upstream of the image reading position of the scanner unit 7.
Also, the pair of discharge rollers 24 provided on the downstream side of the image reading position is configured to be driven at a higher rotation speed than the separation roller 15 in order to provide a gap between the documents conveyed to the image reading position.

Further, the front end of the scanner document is separated by the separation roller 1.
The separation roller 15 is formed by a one-way clutch so that the scanner original will not be broken due to the difference in the feed speed when the original is pulled by the feed roller 23 when the original is pulled by the feed roller 23. The separation roller 15 is configured to rotate idly so that unnecessary pulling force is not applied to the document and damage to the document is prevented.

When the trailing edge of the original document being conveyed by the feed roller 23 (the original document being read) passes through the separation roller 15, the force applied to the separation roller 15 via the original document disappears. Rotates at a lower rotation speed than the set feed roller 23.

Therefore, the next original is conveyed from the original tray 8 by the separation roller 15, but the conveying speed of the next original is slower than the conveying speed of the original being conveyed by the feed roller 23, so that the reading is performed. A gap is created between the trailing edge of the inside document and the leading edge of the next document, and this gap makes it possible to detect the trailing edge of the document being read. It is possible to judge that the reading of the manuscript is completed.

FIG. 2 is a perspective view of the apparatus main body of FIG. 1 seen from above, and an operation panel section 10 including a display section, operation keys and the like is provided on the front side of the apparatus main body. On the operation panel unit 10, keys for setting the number of copies and density,
A display unit 25 using liquid crystal is arranged. By stacking the cabinet cover part and the optical system built-in unit part in this way, a compact design can be achieved, and the device can be installed on a desk as in the conventional case.

FIG. 3 shows the cabinet cover unit 14
FIG. 3 is a cross-sectional view showing a state in which the opening / closing shaft 12 is opened as a center, and an original conveying path for forming an original conveying path for conveying an original from an original tray 8 to an original discharge port 9 is provided on the optical system built-in unit 11 side of a cabinet cover unit 14. A surface 14a is formed, and the original sheet conveying surface 14a is provided with the rubber plate 16, a pressure member 17, a feed roller (driven side roller) 23A on one side, and a discharge roller (driven side roller) 24A. There is.

Further, on the cabinet cover unit 14 side of the optical system built-in unit 11, there is formed a document transport surface 11a forming a document transport path for transporting a document from the document tray 8 to the document discharge port 9, and on this document transport surface. , Separation roller 1
5 and the feed roller (driving side roller) 23 on the other side
B, a discharge roller (driving side roller) 24B.

When a document jam of the scanner document occurs in the document transport path, the operator operates only the cabinet cover unit 14 as shown in FIG.
2 is opened, that is, the original conveying surface 14a of the cabinet cover unit 14 is opened upward, so that the original conveying path is opened (exposed) and the jammed original is removed. .

FIG. 4 shows the cabinet cover unit 14
FIG. 3 is a cross-sectional view showing a state in which the optical system built-in unit 11 and the optical system built-in unit 11 are simultaneously opened about the opening / closing shaft 10, and a recording paper carrying surface 11b forming a recording paper carrying path is formed on the apparatus body side of the optical system built-in unit 11. Has been done.

When a paper jam of the copied recording paper occurs, the operator opens the optical system built-in unit 11 around the opening / closing shaft 10 as shown in the figure, that is, the optical system built-in unit. By opening the recording paper conveyance surface 11b of 11 upward, the recording paper conveyance path is opened (exposed), and the recording paper causing the paper jam is removed.

FIG. 5 is a sectional view of the optical system built-in unit 11, FIG. 6 is a perspective view of the optical system built-in unit 11 seen from above, and FIG. 7 is a perspective view of the optical system built-in unit 11 seen from below. Is.

As shown in FIG. 5, the optical system built-in unit 11 includes an illumination lamp 18 of the scanner section 7 and a first reflection for reflecting the reflected light of the original document, below the cover glass 26 at the original reading position. A mirror 19 is arranged so that the reflected light of the document is reflected from the first reflection mirror 19 to the second reflection mirror 20 and then is imaged on the CCD element 22 from the second reflection mirror 20 via the imaging lens 21. Has been done.

In this way, the optical system built-in unit 11 forms a document transport path for transporting a document. Therefore, the reflected light of the document is reflected only by the first reflection mirror 19 and the second reflection mirror 20 and is reflected. The optical path length can be sufficiently secured, the scanner section 7 can be built in the optical system built-in unit 11, and the size can be designed small.
Preventing the attenuation of the light quantity due to reflection at each mirror 20, 21,
It is possible to prevent insufficient light amount.

Further, since the optical system built-in unit 11 is detachably provided in the main body of the apparatus, the surface of the illumination lamp 18 of the scanner section 7 and the first and second reflection mirrors 20 and 21.
When the surface is soiled, the optical system built-in unit 11 is removed from the apparatus main body, the recording paper carrying surface 11b attached to the optical system built-in unit 11 with screws or the like is removed, and the surface of the illumination lamp 18 of the scanner unit 7 and the first and the second. 2 reflective mirror 2
After cleaning the surfaces 0 and 21, the recording paper conveyance surface 11b is attached to the optical system built-in unit 11, and the optical system built-in unit 1
By attaching 1 to the original position of the main body of the apparatus, the scanner unit 7 can be cleaned easily and carefully, so that an accurate image can be read corresponding to the original image.

Further, the first and second reflecting mirrors 20, 21
In case of slight dust or the like, as shown in FIG. 4, by leaving the optical system built-in unit 11 in the opened state and removing the recording paper carrying surface 11b of the optical system built-in unit 11, quick and simple Can be cleaned.

The optical system built-in unit 11 includes a separation roller 15 for separating a document and a feed roller 2.
3B and a discharge roller 24B are provided, and each roller 23B,
A stepping motor 27 for driving 24B is built in, and the stepping motor 27 and the scanner section 7 are connected to the apparatus main body by a connector (not shown).

With this arrangement, each roller 23
Since B and 24B can be driven with a small number of connecting gears, the entire apparatus can be downsized because there is no useless mechanism.

At the rear end of the optical system built-in unit 11, a guide member 28 for guiding the recording paper printed by the recording unit 1 to the recording paper carrying surface 11b side of the optical system built-in unit 11 and covering the recording unit 1 is provided. Are integrally formed.

With this structure, as shown in FIG. 4, when the cabinet cover unit 14 and the optical system built-in unit 11 are simultaneously opened to open (expose) the recording paper conveyance path. Since the guide member 28 also moves together with the optical system built-in unit 11, the inside of the apparatus main body (recording unit 1) is immediately exposed, so that the image forming unit (for example, developing unit) of the recording unit 1 can be easily replaced. Become.

Further, when the recording paper printed by the recording unit 1 is conveyed, if the leading end of the recording paper is curled,
When the recording paper comes into contact with the switching lever 3 shown in FIG. 1 and is conveyed to the recording paper conveyance path, the leading end of the recording paper is rolled into the recording unit 1 side, so that the guide member 28 guides the recording paper to the optical path. By guiding the recording paper to the system built-in unit 11 side, it is possible to prevent the recording paper from being caught in the recording unit 1 side.

FIG. 8 is a rear view of the apparatus main body of FIG. 1 as viewed from the rear side, and FIG. 9 is a perspective view of the apparatus main body as viewed from the rear side. An intake port 29 is provided for sucking external air into the apparatus main body. The exhaust ports 30a and 30b are provided in the central portion of the rear surface of the apparatus body, and on the side surfaces of the apparatus body.

Then, as shown in FIG. 1, an intake fan 31 is provided inside the intake port 29 to serve as a heat source for the recording unit 1.
The heat roller 32 is arranged on the front side of the apparatus main body, and the control circuit board 33 and the power supply circuit board 34 are arranged under the recording unit 1. An inclined member 35 having a predetermined width corresponding to the intake fan 32 is provided inside the apparatus body facing the intake fan 32.

With this structure, the air that has flowed in from the outside by the intake fan hits the inclined member 35 so that the air is diffused and flows evenly inward, and after passing through the circuit boards 33 and 34, the heat roller. With the heat of 32, it comes out through the exhaust ports 30a and 30b to the outside of the apparatus main body (the same exhaust port is provided on the opposite side surface).

[0049]

According to the present invention, if an optical system for optically reading information of a document is built in the unit containing an optical system and is formed so as to be openable and closable with respect to the main body of the image forming apparatus,
When each member of the optical system becomes dirty, the optical system can be easily cleaned only by opening the unit containing the optical system.

Further, since the unit containing the optical system needs a minimum length necessary for forming the original document conveyance path and the recording paper conveyance path, a reflection mirror having the minimum optical path length of the optical system is used. This can be ensured by using the optical system, the attenuation of the light amount for reading the original of the optical system can be suppressed to the minimum, and the original can be read accurately.

A conveyance path surface for the original is formed on the surface side of the optical system built-in unit portion facing the cabinet cover portion, and a conveyance path surface for recording paper is formed on the side surface facing the inside of the apparatus main body. Then, the main body of the device could be designed in a small size.

Further, since a (guide) member for covering the recording portion is formed on the recording sheet conveying path surface of the unit containing the optical system, the cabinet cover portion and the unit containing the optical system are simultaneously opened to expose the recording sheet conveying path. In this case, the inside of the apparatus main body is exposed, and the image forming unit (for example, developing unit) of the recording unit can be easily replaced. Further, it is possible to prevent the recording paper from being caught in the recording unit side.

Furthermore, if the optical system built-in unit section has a built-in drive means for driving the original document feed rollers and the like, the original document feed rollers can be directly driven by this drive means, and the apparatus main body is designed compact. be able to.

An intake fan for sucking air into the main body of the apparatus is arranged on one side inside the main body of the apparatus, and a heat source is arranged on the other side inside the main body of the apparatus. A circuit board is arranged at an intermediate portion between the intake fan and the intake fan. An inclined member having a predetermined width is provided inside the main body of the device, and the air introduced from the outside by the intake fan is diffused by the inclined member and flows uniformly inside.
After passing through the circuit board, if it is configured so as to escape to the outside of the main body of the device with the heat of the heat source, the air that has flowed in from the outside by the intake fan flows evenly inside due to the inclined member, and after passing through each circuit board, for example, recording Since the information recorded by the unit is released to the outside of the main body with the heat of the heat roller, which is a heat source for fixing the information on the recording paper, the air taken in by the intake fan is diffused by the inclined member and evenly distributed. Can be made to flow to each part, and each component can be cooled reliably.

[Brief description of drawings]

FIG. 1 is a sectional view of an image forming apparatus of the present invention.

FIG. 2 is a perspective view of the main body of the image forming apparatus of FIG. 1 viewed from above.

3 is a cross-sectional view showing a state in which a cabinet cover part is opened around an opening / closing shaft with respect to the apparatus body of FIG.

FIG. 4 is a cross-sectional view showing a state in which a cabinet cover section and an optical system built-in unit section are simultaneously opened about an opening / closing axis with respect to the apparatus main body of FIG.

5 is a sectional view of the optical system built-in unit of FIG.

FIG. 6 is a perspective view of the unit with a built-in optical system in FIG. 5 viewed from above.

FIG. 7 is a perspective view of the unit with a built-in optical system of FIG. 5 viewed from below.

FIG. 8 is a rear view of the main body of the image forming apparatus of FIG. 1 viewed from the rear side.

9 is a perspective view of the main body of the image forming apparatus of FIG. 1 as viewed from above on the back side.

[Explanation of symbols]

1 recording section 2 Recording paper tray 4 Recording paper output tray 5 Recording paper outlet 7 Scanner section 8 Document tray 9 Document outlet 11 Optical system built-in unit 14 Cabinet cover unit 31 Intake fan

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Claims (7)

[Claims] 1. An image forming apparatus comprising at least an optical system for reading information of a document and a recording section for recording information on a recording sheet, wherein an apparatus main body having the recording section therein and a document tray mounted on the document tray. Built-in optical system that has a document transport roller that transports the scanned document to the document reading unit of the optical system, and is openable and closable with respect to the apparatus main body so as to expose the image forming unit of the recording unit in a replaceable manner. A unit section and a cabinet cover section that is openably and closably provided with respect to the optical system built-in unit section so as to open the document reading section, and the cabinet cover section is opened by opening the optical system built-in unit section. And the optical system between the cabinet cover and the optical system built-in unit. An original conveyance path for conveying the original for reading the original is provided, and a recording paper conveyance path for conveying the recording paper after recording by the recording section is provided between the optical system built-in unit section and the apparatus main body. An image forming apparatus characterized by the above. 2. An image forming apparatus including at least an optical system for optically reading information of a document and a recording section for recording information on a recording sheet, wherein the document placed on a document tray is a document of the optical system. An optical system built-in unit portion that has an original feeding roller that is fed to the reading portion and that is openable and closable with respect to the apparatus body; and a cabinet cover portion that is openable and closable with respect to the optical system built-in unit portion In order to read a document by the document reading unit, a document conveyance path including the cabinet cover unit that conveys a document from the document tray to the document discharge unit and the optical system built-in unit unit is provided, An image forming apparatus, wherein the document transport path is opened by opening the cabinet cover part. 3. An image forming apparatus including at least an optical system for reading information of an original and a recording section for recording information on a recording sheet, wherein an apparatus main body having the recording section therein and a document tray mounted on the original tray. A unit with a built-in optical system, which has a document feeding roller for feeding the read document to the document reading unit of the optical system and is provided so as to be openable and closable with respect to the apparatus main body; and the optical unit for opening the document reading unit. A cabinet cover part that is openable and closable with respect to the system built-in unit part, and the device body that discharges the recording paper printed by the recording part to the outside of the device in order to record information on the recording paper by the recording part. And a recording paper conveyance path configured by the optical system built-in unit section, and the cabinet cover section is contacted by opening the optical system built-in unit section upward. Opening moves relative to the same time the apparatus main body as a unit, and an image forming apparatus wherein the recording sheet conveying path, characterized in that it is open. 4. An image forming apparatus comprising at least an optical system for reading information of a document and a recording section for recording information on a recording sheet, wherein the apparatus main body having the recording section therein and a document tray mounted on the document tray. Built-in optical system that has a document transport roller that transports the scanned document to the document reading unit of the optical system, and is openable and closable with respect to the apparatus main body so as to expose the image forming unit of the recording unit in a replaceable manner. A unit section and a cabinet cover section that is openably and closably provided with respect to the optical system built-in unit section so as to open the document reading section, and the cabinet cover section is opened by opening the optical system built-in unit section. And the optical system between the cabinet cover and the optical system built-in unit. An original conveyance path for conveying the original for reading the original is provided, and a recording paper conveyance path for conveying the recording paper after recording by the recording section is provided between the optical system built-in unit section and the apparatus main body. An image forming device characterized in that a member that covers the recording portion and moves along with the optical system built-in unit portion when the optical system built-in unit portion is opened and moved is provided on the recording paper conveyance path side of the optical system built-in unit portion. apparatus. 5. An image forming apparatus including at least an optical system for reading information of a document and a recording unit for recording information on a recording sheet, wherein an apparatus main body having the recording unit therein and a document tray mounted on the document tray. Built-in optical system that has a document transport roller that transports the scanned document to the document reading unit of the optical system, and is openable and closable with respect to the apparatus main body so as to expose the image forming unit of the recording unit in a replaceable manner. A unit section and a cabinet cover section that is openably and closably provided with respect to the optical system built-in unit section so as to open the document reading section, and the cabinet cover section is opened by opening the optical system built-in unit section. And the optical system between the cabinet cover and the optical system built-in unit. An original conveyance path for conveying the original for reading the original is provided, and a recording paper conveyance path for conveying the recording paper after recording by the recording section is provided between the optical system built-in unit section and the apparatus main body. A guide member for guiding the recording paper so as not to be conveyed to the recording unit side and covering the recording unit is provided on the recording paper conveyance path surface side of the optical system built-in unit unit, and the guide member further includes the optical system built-in unit unit. An image forming apparatus that moves together with the optical system built-in unit when the lens is opened and moved. 6. An image forming apparatus comprising at least an optical system for reading information of a document and a recording section for recording information on a recording sheet, wherein an apparatus main body having the recording section inside and a document tray mounted on the document tray. Built-in optical system that has a document transport roller that transports the scanned document to the document reading unit of the optical system, and is openable and closable with respect to the apparatus main body so as to expose the image forming unit of the recording unit in a replaceable manner. A unit section and a cabinet cover section that is openably and closably provided with respect to the optical system built-in unit section so as to open the document reading section, and the cabinet cover section is opened by opening the optical system built-in unit section. And the optical system between the cabinet cover and the optical system built-in unit. An original conveyance path for conveying the original for reading the original is provided, and a recording paper conveyance path for conveying the recording paper after recording by the recording section is provided between the optical system built-in unit section and the apparatus main body, A guide member that guides the recording paper so that the recording paper is not rolled into the recording unit side and covers the recording unit is provided on the recording paper conveyance path side of the optical system built-in unit, and the guide member further includes the optical system built-in unit. An image forming apparatus characterized in that, when a unit is opened and moved, the unit moves together with the optical system unit unit. 7. An image forming apparatus including at least an optical system for reading information of a document and a recording section for recording information on a recording sheet, the apparatus main body having the recording section therein, and a document tray mounted on the document tray. Built-in optical system that has a document transport roller that transports the scanned document to the document reading unit of the optical system, and is openable and closable with respect to the apparatus main body so as to expose the image forming unit of the recording unit in a replaceable manner. A unit section, a cabinet cover section that is openable and closable with respect to the optical system built-in unit section so as to open the document reading section, and the optical system between the cabinet cover section and the optical system built-in unit section. A document feeding path for feeding a document for reading the document in the system, and a record printed by the recording unit for recording information on the recording paper by the recording unit. A recording paper conveyance path constituted by the apparatus main body and the optical system built-in unit section is provided for discharging the apparatus to the recording paper discharge tray on the upper side of the apparatus main body, and the cabinet cover section is opened by opening the optical system built-in unit section. An image forming apparatus, which is opened and moved with respect to the apparatus main body at the same time as the unit portion, and the recording paper conveyance path is opened.