JP2816068B2 - Composite recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an analog image signal reading means for analogly processing image data read from a document and inputting the image data to a photosensitive member, and digitally processing image data read from a document and inputting the image data to a photosensitive member. The present invention relates to a composite recording apparatus including digital image reading means.

[0002]

2. Description of the Related Art In general, an electrophotographic copying apparatus reads image data from a document and irradiates a uniformly charged photoconductor with an optical signal corresponding to the image data to form an electrostatic latent image on the surface of the photoconductor. Is formed, a toner is applied from a developing device, developed, and transferred to a recording medium such as paper.

A method of inputting image data read from a document to a photoconductor is an analog method in which image data read from a document is analog-processed and input to a photoconductor, or a method of digitally processing image data read from a document and applied to a photoconductor. It can be broadly classified into a digital method for input.

In the case of the analog system, generally, an exposure lamp and an optical system are fixedly installed in order to keep the length of an optical path from an exposure lamp to a photosensitive member, and an original is moved at the same speed as the photosensitive member surface. While moving, the original is irradiated with light from the exposure lamp, and the reflected light is converged on the surface of the photoreceptor.

In the digital system, a light source, a photoelectric conversion element, an A / D converter, a control unit, and a light-emitting element are provided. The light from the light source is irradiated on the original, and the reflected light is converted into an analog electric signal by the photoelectric conversion element. The light is then converted into a digital signal by an A / D converter, and the control unit drives the light emitting element based on the digital signal to irradiate the light from the light emitting element to the photoconductor.

In the case of the analog system, there are advantages that the configuration is simple, inexpensive, and there is little power consumption. There are advantages that the timing of formation can be shifted, the image can be enlarged or reduced, and the image quality can be improved by interpolating data.

On the other hand, the facsimile apparatus is provided with document reading means for reading a facsimile transmission document (hereinafter, referred to as a facsimile document) and image forming means for printing received image data.

As a document reading means, a digital method is generally adopted in order to enable a variety of signal processing thereafter. However, as an image forming means, a thermal or impact type dot printer or an electrophotographic type is used. An image forming apparatus (laser printer) is employed.

As described above, the facsimile apparatus is provided with the image reading means and the image forming means required for the copying machine. Therefore, particularly in the facsimile apparatus having the electrophotographic image forming apparatus, these image reading means are provided. Devices that can be used also as a copying machine using the image forming means and the image forming means have become the mainstream. On the other hand, there is a facsimile apparatus in which facsimile transmission / reception means is incorporated in a copier so that it can be used as a facsimile apparatus.

A storage device is additionally provided as a composite recording device having a facsimile function and a copying function.
FAX original read data or received facsimile reception data is temporarily stored in a storage device, and data stored in advance in the storage device is read out while copying, facsimile transmission is performed, or facsimile reception data received during copying is copied. There is also a configuration in which the data is read from the storage device and recorded after completion.

[0011]

However, in the conventional composite recording apparatus, a FAX original reading apparatus for optically scanning a FAX original and a copy original reading apparatus for reading a copy original are used in common. So FA
While the X original is being read, the original cannot be copied, and while the original is being copied, the FAX original cannot be read.
There is a problem that the usability is poor.

In a composite recording apparatus having a storage device, facsimile transmission and copying can be processed in parallel, but the facsimile document and the copying document cannot be read at the same time, so that there is no improvement in terms of usability. Not.

In order to provide an easy-to-use multifunction printer capable of simultaneously reading a FAX original and a copying original, it is necessary to provide a copy original reading means for reading a copying original separately from a FAX original reading means for reading a FAX original. Thought.

Here, as the FAX original reading means, it is necessary to process image data into a signal suitable for transmission / reception, and therefore, it is preferable to use a digital type.
Also, if the FAX document reading means is of a digital type,
By using the X original reading means also as the copy original reading means, it is possible to improve the copy image quality by signal interpolation, and realize enlarged copy, reduced copy, and the like.

On the other hand, as the copy original reading means, it is possible to use a digital facsimile original reading means also as the copy original reading means to realize an improvement in image quality by signal interpolation, an enlarged copy, a reduced copy and the like. Since it becomes possible, the structure is simple, inexpensive, and
We thought that it would be preferable to use an analog system with low power consumption.

Based on such a technical idea, when the analog type original reading means and the digital type facsimile original reading means are selectively used as the reading means for copying, one of them is selected at the time of copying. And a means to operate it.

In view of the above, an analog type original reading means and a digital type original facsimile reading means are provided, and an image read by the facsimile original reading means can be copied. A multi-function recording apparatus is provided, which is provided with a reading selection key for selecting a reading mode, and which can be operated by selecting the reading means when the copy mode is set.

However, such operation of the reading selection key is troublesome for the user, and is disadvantageous in improving operability. In addition, when you actually forget to operate the read selection key or use it incorrectly,
There is a case where the reading unit having no copy original is operated uselessly.

The present invention has been made in view of the above circumstances, and enables simultaneous reading of a copy original and a facsimile original, has high operability, and eliminates the possibility of forgetting to select a reading device or an erroneous selection. To provide a composite recording device that can be eliminated

[0020]

In order to achieve the above object, the present invention provides an analog image signal reading means for performing analog processing on image data read from a document and inputting the processed image data to a photosensitive member of an electrophotographic image forming apparatus. In order to achieve the above object, the following means are provided on the premise of a composite recording apparatus having a digital image reading means for digitally processing image data read from a document and inputting the digital data to the photoconductor.
That is, the composite recording apparatus of the present invention includes an analog image reading unit and / or a digital image reading unit,
In addition to providing document reading means for detecting that a document is present, providing reading selection means for selectively operating analog image reading means or digital image reading means having a document in accordance with the detection result of the document detecting means. Features.

[0021]

According to the present invention, if a document is set on either the analog image reading means or the digital image reading means,
The original is detected by the original detecting unit, and the reading detecting unit operates the analog image reading unit or the digital image reading unit with the original to read the image of the original, and inputs the image data to the photosensitive member of the electrophotographic image forming apparatus. Let it. That is, in the case where the document detecting means is provided only in the analog image reading means, when the document is set on the analog image reading means, the analog image reading means which detects the presence of the document performs analog copying, and When a document is set on the image reading means, the document of the analog image reading means is not detected, so that digital copying is performed by the digital image reading means.

When the original detecting means is provided only in the digital image reading means, when the original is set on the analog image reading means, the original of the digital image reading means is not detected. Is performed, and when a document is set on the digital image reading means, the document is detected, so that digital copying is performed by the digital image reading means.

Further, in the case where the document detecting means is provided in the analog image reading means and the digital image reading means, when the document is set in the analog image reading means, the document detecting means of the analog image reading means detects the document. The presence of the original is detected, the analog copy is performed by the analog image reading means, and when the original is set on the digital image reading means, the original detection means of the digital image reading means detects the presence of the original and the digital image reading means Digital copying is performed.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A composite recording apparatus according to an embodiment of the present invention will be specifically described below with reference to the drawings.

As shown in the perspective view of FIG.
A facsimile document reading unit 2 constituting a front part of the body 1;
An image forming unit 3 constituting the remaining portion on the rear side is provided. Further, an operation panel 4 is provided on the front of the body 1 and a document table 5 is provided above the image forming unit 3.

As shown in the sectional view of FIG. 2, the facsimile document reading unit 2 has a fixed case 6 fixed to the front of the image forming unit 3 and a lower end supported at the front side thereof so as to be able to swing open and close. A front cover 7 is provided, and a hopper 8 and a FAX document transport device 9 for transporting the FAX document 50 shown in FIG. 1 from top to bottom across the fixed case 6 and the front cover 7 are provided.

As shown in FIGS. 1 and 2, the hopper 8 has an insertion port 10 opened between the fixed case 6 and the front cover 7, and a left and right one supported on the upper part of the fixed case 6.
A pair of paper guides 11 is provided.

The paper guides 11 are supported by the fixed case 6 so as to move left and right toward each other while keeping a distance from the center of the insertion port 10 so as to be equidistant from each other. The center of the FAX document 50 is positioned at the center of the insertion slot 10 by making contact with both sides of the FAX document 50 inserted into the FAX document 10.

As shown in FIG. 2, below the hopper 8, a separating pad 12 supported by the front cover 7 is provided.
A paper feed roller 13 rotatably supported by the fixed case 6 is provided opposite thereto, and the paper feed roller 13 is rotated counterclockwise in FIG. Then, the sheets are sent out to the FAX document feeder 9 one by one from the fixed case 6 side.

The facsimile document feeder 9 includes a feed roller 14 rotatably supported by the fixed case 6 below the feed roller 13 and a discharge roller rotatably supported by the fixed case 6 below the feed roller 14. A paper roller 15 and pinch rollers 16 and 17 rotatably supported by the front cover 7 so as to face the transport roller 14 or the paper discharge roller 15, respectively.
And a drive unit for synchronously driving the transport roller 14 and the discharge roller 15, and a reading head 18 in which the FAX document 50 sent from the hopper 8 by the paper feed roller 13 is supported by the fixed case 6 by the transport roller 14. , And the FAX document 50 that has passed through the front surface of the reading head 18 is discharged by a discharge roller 15 to a discharge port 19 opened between the fixed case 6 and the lower end of the front cover 7. is there.

The reading head 18 is not particularly limited as long as it is configured to scan and read the facsimile document 50, and a reading head generally used as a reading head of a facsimile apparatus can be used. For example, an LED that irradiates light to the FAX original 50 and the FAX original 50
And a CCD sensor array that receives light reflected from the CCD.

As shown in the block diagram of FIG. 3, a transmission / reception circuit provided for performing facsimile transmission / reception includes an amplifier 20 for amplifying the output of the read head 17, an A / D converter 21, an encoding circuit 22, a modulation / demodulation circuit. Circuit 23, NCU
(Network control unit) 24, a decoding circuit 25, and a CPU 26 for controlling these. The facsimile transmission is performed by operating the numeric keypad 50 (may be abbreviated dial key) on the operation panel 4 to specify the transmission destination, and pressing the start key 51 or faxing the hopper 8
The operation is started by setting the document 50 and then operating the numeric keypad 50 (may be abbreviated dial keys) to specify the transmission destination. For example, when the start key 51 is pressed after specifying the transmission destination, first, an auto dialer (not shown) is activated, and the line to the transmission destination facsimile apparatus or multifunction recording apparatus is connected via the NCU 24 according to a predetermined line connection procedure. Is done. When this line connection is confirmed and the FAX document 50 is set on the hopper 8, the paper feed roller 13, the supply roller 14, and the discharge roller 15 are driven, and the FAX document 50 is placed one by one in the hopper. 8 and is sent to the front of the reading head 17 and read. As shown in the flow chart of FIG.
Reference numeral 7 outputs image data corresponding to the image of the FAX document 50. This output is amplified by the amplifier 20, and the A / D converter 2
1, is converted to a digital signal, encoded by an encoding circuit 22 to compress the amount of data, and further modulated by a modulation / demodulation circuit 23 into transmission data suitable for communication, and then transmitted to another facsimile apparatus via an NCU 24 and a line. Alternatively, it is output to the composite recording device.

Although not shown in the figure, when all the fax documents have been read, a predetermined end confirmation procedure is executed by the NCU 24, and when the end is confirmed, a predetermined line disconnection procedure is executed by the NCU 24 and the line is disconnected. Is released.

When a call is received from another facsimile machine or a composite recording apparatus, a predetermined circuit connection procedure is executed by the NCU 24 to establish a line connection with the other facsimile apparatus or the composite recording apparatus. , NCU2 from another facsimile machine or multifunction recorder
4, the received data is input to the modulation / demodulation circuit 23, and the received data is demodulated into a coded signal by the modulation / demodulation circuit 23, decoded by the decoding circuit 25 into image data, and output to the image forming unit 3. .

The image forming unit 3 is controlled to blink by the CPU 26 based on the image data inputted from the photoreceptor 29 and the decoding circuit 25 as described later, and irradiates the photoreceptor 29 with light to be static. A light emitting element 32 for forming an electrostatic latent image is provided.

As shown in FIG. 3, the transmission / reception circuit is provided with a RAM 27 for temporarily storing the transmission data after modulation and the reception data before demodulation. Facsimile transmission of the same contents to different transmission destinations sequentially, facsimile transmission at a designated time, image data read by the reading head 18 during copying, and a call from another facsimile apparatus or a composite recording apparatus. The received data is temporarily stored, and after copying is completed, image data corresponding to the received data is output to the image forming unit 3.

The CPU 25 is connected to a ROM 28 in which a control program for the entire transmitting / receiving apparatus is stored.

As shown in the sectional view of FIG. 4, the image forming unit 3 includes a drum-shaped photosensitive member 29,
In FIG. 9, a uniform charge is given by the charging charger 30 while rotating clockwise in the figure, and is output from a light emitting element 32 driven based on image data received by an exposure device 31 or a transmission / reception circuit described later. An electrostatic latent image is formed on the surface by being exposed to the light signal, the toner is attracted from the developing device 33 to the electrostatic latent image, developed, and the transfer charger 34 transfers the toner image to recording paper. Then, after the residual toner is removed by the cleaning device 35, the charge is removed by the charge remover 36.

The recording paper on which the toner image has been transferred by the transfer charger 34 is sent to a fixing device 37, and the fixing device 37 fixes the toner image on the recording paper.

The recording paper is fed from a paper feed tray 38 provided on the right outside of the image forming unit 3 to a paper transport device 3.
The sheet is taken out one by one by a pick roller 40 of 9 and is fed between the photoreceptor 29 and the transfer charger 34 by a feed roller 41 of a sheet conveying device 39. Also, the photoconductor 29
The recording paper that has passed between the transfer charger 34 and
The recording sheet sent to the fixing device 37 by the conveyance belt 42 of the sheet conveyance device 39 and discharged from the fixing device 37 is discharged to a discharge tray 43 provided on the left outside of the image forming unit 3.

The original table 5 is mounted on the upper side of the image forming unit 3 so as to be able to reciprocate horizontally in the left-right direction, and a glass plate 45 on which the original 44 for copying is mounted, and an original cover for blocking disturbance light. 46, the front edge of the document cover 46 is lifted to open the document cover 46, and the copy document 4
4 can be moved in and out of the document table 5 from the front over the hopper 8 or the FAX document 50 set in the hopper 8.

As shown in the block diagram of FIG. 6, the mechanical control circuit includes a ten key 51, a start key 52, a copy key 53 provided on the operation panel 4, and a hopper 8.
The main motor 55, FAX paper feed clutch 56, FA
X transport clutch 57, original table drive system clutch 58, photoconductor drive system clutch 59, developing unit / fixer drive system clutch 60, sheet supply clutch 61, and sheet transfer system clutch 6
2 through drivers 63 to 70, respectively.
6.

For example, when the destination of facsimile transmission is specified by operating the ten keys 51 and the start key 52 is operated, the facsimile transmission mode is set. After this,
When the line connection procedure described above is successful and the circuit connection with the transmission destination is realized, the main motor 53 is turned on after confirming that the FAX original is set by the original detection sensor 54, and the FAX The paper feed clutch 56 is turned on, the paper feed roller 13 of the hopper 8 rotates, and the FA
The X document 50 is sent from the hopper 8 to the FAX document transport device 9. Thereafter, the fax feed clutch 56 is turned off, and at the same time, the fax transport clutch 57 is turned on.
The X document feeder 9 operates, and the FAX document 50 is read by the reading head 18 while being fed. In this case, the read image data is transmitted by facsimile to the transmission destination via the transmission / reception device as described above.

When the copy key 53 of the operation panel 4 is pressed in a standby state in which the original table 5 is located at the standby position above the image forming unit 3, a copy mode is set. First, the original is set on the original table 5. Or whether it is set in the hopper 8 is detected. That is, the CPU 24 recognizes whether or not the document detection sensor 54 detects a document.

The sensor 54 detects H or L when there is a document.
The detection signal may be output, for example, a photosensor or a photointerrupter may be used.
In the case of non-detection, analog copy is performed assuming that the copy original 44 is set on the original platen 5.

In this case, first, the developing device / fixing device clutch 60 is turned on, and while the developer in the developing device 33 is being stirred, the heater of the fixing device 37 is operated while the fixing roller and the pinch facing the fixing roller are operated. Rotate the rollers. When the charge amount of the developer and the temperature of the fixing device reach predetermined values, the main motor 55 and the platen driving system clutch 58 are turned on in the forward direction, and the platen 5 moves to the left stroke end. When the platen 5 moves to the left stroke end, the platen drive system clutch 58 is turned on in the reverse direction, and the platen 5 starts moving rightward. At the same time, the photoconductor drive system clutch 59 and the paper supply clutch 61 are turned on, the exposure lamp 48 of the exposure device 31 is turned on, and writing of image data to the photoconductor 29 is performed by the exposure device 3.
1 is performed. The paper supply clutch 61 is turned off when a predetermined time has elapsed, and the paper conveyance clutch 62 is turned on so that the position of the toner image developed on the photoconductor 29 matches the predetermined position on the paper. 29 and the transfer charger 34, and the fixing device 3
7, the image is fixed, and then discharged to a discharge tray. When the discharge of the sheet is detected, the sheet conveying clutch 62 is turned off, and the heater of the fixing device 37 is also turned off.

When the document table 5 reaches the right stroke end (or the left end of the sheet), the photosensitive member driving system clutch 59
Is turned off, and the rotation of the photoconductor 29 is stopped. At the same time, the platen drive system clutch 58 is turned on in the forward direction, and the platen 5 is returned to the original standby position, and then the platen drive system clutch 58 is turned off.

Thereafter, after a predetermined time has passed, the fixing device 3
After the temperature of 7 has dropped below a predetermined temperature, the developing device / fixing device system clutch 60 and the main motor 55 are turned off.
When the sensor 54 detects a document, the copy document 44 is set on the hopper 8, so that digital copying is performed.

In this case, first, the developing device / fixing device clutch 60 is turned on, and while the developer in the developing device 33 is being stirred, the heater of the fixing device 37 is operated while the fixing roller and the pinch roller opposed thereto are moved. Rotate. When the charge amount of the developer and the temperature of the fixing device reach predetermined values, the main motor 55 and the FAX paper feed clutch 56 are turned on, and the original is sent from the hopper 8 to the FAX original supply device 9.
Thereafter, the fax feed clutch 56 is turned off and the fax transport clutch 57 is turned on at the same time, the fax document transport device 9 is operated, and the fax document 50 is read by the reading head 18 while being transported. The read image data is temporarily stored in the RAM 27 via the amplifier 20 and the A / D converter 21 of the transmission / reception circuit, and after a predetermined signal processing, drives the light emitting element 32 of the image forming unit 3.
The photoconductor drive system clutch 59 and the paper supply clutch 61 are turned on in synchronization with the operation of the light emitting element 32, and the formation and development of the electrostatic latent image on the photoconductor 29 proceed. The paper is fed to the paper feed roller 41 from. When a predetermined time has elapsed since the photoreceptor drive system clutch 59 and the paper supply clutch 61 were turned on, the paper supply clutch 61 was turned off, the paper conveyance clutch 62 was turned on, and the paper was The image is sent between the body 29 and the transfer charger 34, further sent to the fixing device 37, where the image is fixed on the sheet, and is ejected to the sheet ejection tray 43.

When reading by the reading head 18 is continuously stopped for a predetermined time or more, the facsimile transport clutch 57
Is turned off, and it is checked again whether the sensor 54 detects the document. If the original remains in the hopper 8, the facsimile paper feed clutch 56 is turned on, and the digital copy of the next page is similarly performed continuously. If the original is not in the hopper 8, the paper is
Then, the paper transport clutch 62 is turned off, and the heater of the fixing device 43 is turned off. Thereafter, after the temperature of the fixing device 37 falls below a predetermined temperature, the developing device / fixing device system clutch 60 and the main motor 55 are turned off.

When the copy key 53 is pressed during facsimile transmission, that is, while the facsimile transmission mode is set and executed, even if the sensor 54 detects that the hopper 8 has a document, the CPU 24 causes the light emitting element 32 to emit light. Is prohibited, and analog copying using the exposure device 31 is performed.

While the copy mode is set and the copy original 44 set on the original platen 5 is being copied, the CPU
Reference numeral 24 indicates that driving of the light emitting element 32 is prohibited. That is, if the fax document 50 is set on the hopper 8 during this time, the sensor 54 detects the fax document 50,
The driving of the light emitting element 32 is prohibited, and copying using the exposure device 31 is continued. If the facsimile transmission mode is set while the copy mode is set and the copy of the original 44 set on the original platen 5 is being performed, the CPU 24 operates even if the hopper 8 has no original. Driving of the light emitting element 32 is prohibited, copying using the exposure device 31 is continued, and facsimile transmission can be performed using the reading head 18 as described later. Further, when copying a plurality of copy originals 44 using the original platen 5, the copy mode is repeatedly set each time one original is set.
Even after the analog copy of one original is completed,
For example, the CPU 24 is prohibited from driving the light emitting element 32 for 30 seconds to 1 minute, and the analog copy can be repeated by repeating the setting of the copy mode within the predetermined period.

The exposing device 31 includes the image forming unit 3
An exposure lamp 48 for irradiating the document table 5 with light through a slit 47 formed on the upper surface of the document;
And a lens 49 for receiving light through the surface and converging it on the surface of the photoconductor 29 of the image forming unit 3. Then, the exposure device 31 and the image forming unit 3 are operated by setting the moving speed of the document table 9 to the right and the peripheral speed of the surface of the photoconductor 29 to be the same. As described above, an electrostatic latent image corresponding to the 44 image is formed.

As the lens 49, a cylindrical lens or a compound eye lens in which minute spherical lenses are closely assembled may be used.

During the analog copy, the CPU
24 is prohibited from driving the light emitting element 32, an image corresponding to the received data cannot be printed by the image forming unit 3. However, the FAX original 50 is set on the hopper 8 in the FAX original reading unit 2. However, there is no problem in reading the image of the FAX document 50 by operating the hopper 8, the FAX document conveying device 9 and the reading head 18.

That is, the document table 5 is connected to the image forming unit 3.
The FAX original conveying device 9 is configured to convey the FAX original 50 in the vertical direction in front of the original platen 5. The copied original 44 and the FAX original 50 conveyed by the FAX original conveying device 9 move without congestion or intersection. The platen 5
Is read by the exposure device 31, and the FAX document 50 conveyed by the FAX document conveyance device 9 is read by the reading head 18. Therefore, the reciprocation of the document table 5 and the transport of the FAX document transport device 9 are performed in parallel, and the reading operation of the exposure device 31 and the reading operation of the reading head 18 are performed in parallel, so that the copy document 44 is copied. The reading and the reading of the FAX document 50 can be performed simultaneously.

The image data read by the reading head 18 while copying the original 44 for copying placed on the original table 5 is not transmitted by facsimile in real time, but the image data is temporarily stored in the RAM 27, and After the copying of the original 44 for copying is completed, the image data is read out and transmitted by facsimile, copied by the image forming unit 3, or transmitted by facsimile.
Can be copied.

Further, on the other hand, the copy manuscript 44 can be put in and out of the manuscript table 5 from the front of the apparatus, over the FAX manuscript reading unit 2 or the FAX manuscript 50 set in the hopper 8 thereof. On the other hand, the FAX document 50 can be set on the hopper 8 from above the apparatus regardless of the position of the document table 5.

In addition, since the document table 5 is reciprocated and the exposure device 31 for reading the image of the copy document 44 placed on the document table 5 is fixedly installed in the image forming unit 3, the exposure device 31 is fixed. Can be compactly incorporated in the image forming unit 3, which is advantageous in reducing the size and size of the apparatus.

In addition, since the FAX original 50 is configured to be conveyed vertically in front of the original platen 5, the FAX original 50 is placed above and below the FAX original reading unit 2 located in front of the original platen. A stacker that collects the hopper 8 to be loaded and the FAX original 50 discharged from the FAX original transport device 9 can be arranged. The area can be reduced.

[0061]

As described above, according to the present invention,
Since the analog document reading device and the digital document reading device are provided, the copying document can be read using the analog document reading device, and the FAX document can be read using the digital document reading device. In the case where a document can be read and a document is set on one of the document reading means and copying is performed, the operation of selecting one of the reading means need not be performed, and the operability can be improved. In addition, it is possible to prevent the user from forgetting to select the original reading device or to make a mistake in selecting the original reading device.

[Brief description of the drawings]

FIG. 1 is a perspective view of a composite recording apparatus according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of a main part of the present invention.

FIG. 3 is a block diagram of a transmission / reception circuit of the present invention.

FIG. 4 is a flow chart of fax transmission of the present invention.

FIG. 5 is a vertical sectional front view of a main part of the present invention.

FIG. 6 is a block diagram of a mechanical control circuit according to the present invention.

[Explanation of symbols]

 2 FAX document reading unit 3 Image forming unit 5 Document table 8 Hopper 9 FAX document conveying device 18 Reading head 20 Amplifier 21 A / D converter 26 CPU 27 RAM 28 ROM 29 Photoreceptor 31 Exposure device 32 Light emitting device 44 Copy document 47 Slit 48 Exposure lamp 49 Lens 50 FAX document 54 Sensor

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03B 27/50

Claims (1)

(57) [Claims] An analog image signal reading means for analogly processing image data read from a document and inputting the image data to a photoconductor of an electrophotographic image forming apparatus, and digitally processing image data read from the document and inputting the same to the photoconductor. In a composite recording apparatus comprising digital image reading means, one or both of the analog image reading means and the digital image reading means are provided with document detecting means for detecting that a document is present on the image reading means, and the document reading means is provided. And a reading selecting means for selectively activating an analog image reading means or a digital image reading means having one original in accordance with the detection result of (1).