JPH07298016A - Image forming device - Google Patents

Abstract

PURPOSE:To continue transmission effectively by editing image data read on its way and additional data representing the half-way state and sending the edited data automatically when a memory capacity is fully occupied. CONSTITUTION:An external equipment 3 has a facsimile section 4 connecting electrically to a reader section 2, having various functions and controlling facsimile communication, an image memory section 9 or the like storing information from the reader section 1 and storing tentatively information sent from a computer, and a core section 10 controlling each function. When a memory capacity is fully occupied in the memory transmission, image data read on the way and additional data representing the information of the half-way data to be delivered to a receiver side are edited as to an original whose data cannot be sent at once and the edited data are sent automatically. Thus, the transmission is not interrupted by means of division transmission of the transmission original and confusion of the receiver side is prevented by delivering the fact of partial transmission to the user of the receiver side by means of the additional data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image transfer device having a facsimile function.

[0002]

2. Description of the Related Art In conventional image transmission, there are a method of scanning documents in order while scanning them in order, and a method of reading documents in reverse order using a document feeder such as a copying machine. In particular, in the latter, the information of all pages is stored in the memory, inverted at the time of transmission, and then transmitted. However, due to the memory capacity, the memory may become full before all the originals are read. .

[0003]

When the memory is full, there are the following three methods that can be taken.

(1) The read job is canceled.

(2) At that point, a telephone call is made to start transmitting data in the memory, and thereafter, the operation shifts to a transmitting operation while reading.

(3) For the time being, 1j until the memory is full
Then, the user is instructed to perform the remaining read / send operation again.

In particular, the third method has a drawback in that all the originals cannot be transmitted at one time, and in the method of reading in the reverse order described above, the cover on which the information such as the transmission destination is written is only the last. It has the disadvantage that it cannot be sent and causes confusion on the receiving side.

Therefore, an object of the present invention is to provide an image forming apparatus having a facsimile function which can effectively continue the transmission even when the memory is full during the memory transmission.

[0009]

According to the present invention, when a memory is full during memory transmission, the image data read halfway and the fact that the document is halfway transmitted to the receiving side are transmitted to the receiving side. By editing and automatically sending the additional data to be transmitted, the transmission operation is not interrupted by the divided transmission of the transmission original, and it is possible to notify the receiving side user with the additional data that the transmission is partial. , Is designed to prevent confusion on the receiving side.

[0010]

FIG. 1 is a block diagram showing an embodiment of the present invention.

The reader unit 1 is an image input device for converting a document into image data, and the printer 2 has a plurality of recording paper cassettes, and outputs the image data as a visible image on the recording paper according to a print command. It is an image output device. In this embodiment, a plurality of pages of originals set upward on a platen are read in order from the last page, and the image is recorded and ejected, as is used in commonly used copying machines. By ejecting the paper with its recording surface facing upward, the page of the read original and the page of the recorded original are aligned. Therefore, when the image read by the reader unit 1 is transmitted by facsimile, the image data read in the same reading order is stored in the memory, and the page read last is transmitted in order. The operation when the memory is full when storing image data will be described later.

The external device 3 is electrically connected to the reader unit 1 and has various functions. Specifically, the external device 3 uses a fax unit 4 for controlling facsimile communication and an image storage device for storing image file data. File part 5
A man-machine interface unit 6 connected to the file unit 5, a computer interface unit 7 for connecting to a computer, a formatter unit 8 for converting information from the computer into a visible image, and a reader unit 1. Image memory unit 9 for accumulating information of a computer or temporarily accumulating information sent from a computer
And a core unit 10 that controls each of the above functions. Hereinafter, the function of each unit will be described in detail.

First, a detailed description of the reader section will be given with reference to FIGS.
Using.

The originals stacked on the original feeding device 101 are sequentially conveyed one by one onto the surface of the original glass 102. When the document is conveyed, the lamp of the scanner unit 103 lights up and the scanner unit 104 moves to irradiate the document. The reflected light of the original is reflected by the mirrors 105, 106, 10
After passing through the lens 108, the light is input to the CCD image sensor unit (hereinafter referred to as CCD) 109.

Next, the image processing in the reader 1 will be described in detail with reference to FIG. The image information input to the CCD 109 is photoelectrically converted here and converted into an electric signal.
The color information from the CCD 109 is transferred to the next amplifier 110.
The signals are amplified by R, 110G, and 110B according to the input signal level of the A / D converter 111.

The output signal from the A / D converter 111 is input to the shading circuit 112, where the lamp 10 is supplied.
The light distribution unevenness of No. 3 and the sensitivity unevenness of the CCD are corrected. The signal from the shading circuit 112 is input to the Y signal generation color detection circuit 113 and the external I / F switching circuit 119.

The Y signal generation color detection circuit 113 calculates the signal from the shading circuit 112 by the following equation and Y
Get the signal.

Y = 0.3R + 0.6G + 0.1B Further, it has a color detection circuit (not shown) for separating the R, G, B signals into seven colors and outputting the signals for the respective colors. The output signal from the Y signal generation color detection circuit 113 is input to the scaling / repeat circuit 114. Scaling in the sub-scanning direction is performed according to the scanning speed of the scanner unit 104, and scaling in the main scanning direction is performed by the scaling circuit 114. Further, the repeat circuit 114 can output a plurality of same images.

The contour / edge enhancement circuit 115 obtains edge enhancement and contour information by enhancing the high frequency component of the signal from the scaling / repeat circuit 114. The signal from the contour / edge emphasis circuit 115 is used for marker area determination /
It is input to the contour generation circuit 116 and the patterning / thickening / masking / trimming circuit 117.

Marker area determination / contour generation circuit 116
Generates contour information of a reading marker of a portion written with a marker pen of a specified color on the document, and a patterning / thickening / masking / trimming circuit 117 is used to thicken or mask the contour information. Trimming.
Further, patterning is performed by the color detection signal from the Y signal generation color detection circuit 113.

The output signal from the patterning / thickening / masking / trimming circuit 117 is input to the laser driver circuit, which converts various processed signals into signals for driving the laser. The signal from the laser driver is input to the printer unit 2 and image formation is performed as a visible image.

Next, the external I / F switching circuit 119 for interfacing with an external device will be described. When outputting image information from the reader 1 to the external device 3, the external I / F switching circuit 119 outputs the image information from the patterning / thickening / masking / trimming circuit 117 to the connector 120. In addition, when the reader 1 inputs image information from the external device 3, the external switching circuit 1
19 inputs the image information from the connector 120 to the Y signal generation color detection circuit 113.

The above image processing is performed according to an instruction from the CPU 122, and the area generating circuit 121 generates various timing signals necessary for the image processing from the values set by the CPU 122. In addition, communication with the external device 3 is performed using the communication function built in the CPU 122. The SUBCPU 123 controls the operation unit 124 and communicates with the external device 3 using the communication function built in the SUBCPU 123.

The memory 125 is a storage unit for forming an image and is backed up by a battery and stores high-voltage data and the like and a secret code and the like.

Next, the printer section 2 will be described. The signal input to the printer unit 2 is the exposure control unit 201.
At the photoconductor 20 and is converted into an optical signal according to the image signal.
Irradiate 2. The latent image formed on the photoconductor 202 by the irradiation light is developed by the developing device 203. Further, the transfer paper stacking unit 20 is combined with the timing of the latent image.
The transfer paper is conveyed from 4 or 205, and the developed image is transferred in the transfer unit 206. The transferred image is fixed on the transfer target paper by the fixing unit 207, and then the paper output unit 2
It is discharged to outside the device from 08. The transfer paper output from the paper output unit 208 is discharged to each bin when the sort function is working in the sorter 220 or to the highest bin of the sorter when the sort function is not working. .

Next, a method for outputting sequentially read images on both sides of one output sheet will be described. Fixing unit 20
The output sheet fixed in 7 is once conveyed to the sheet discharge unit 208, and then the sheet direction is reversed to change the conveying direction switching member 20.
It is conveyed to the re-transferred transfer paper stacking section 210 via 9.
Then, when the next original is prepared, the original image is read in the same manner as the above process, but since the transfer paper is fed from the re-feed transfer target paper stacking section 210, in the end,
It is possible to output two document images on the front surface and the back surface of the same output paper.

Next, the function of each part of the external device 3 will be described.

First, the core portion 10 will be described with reference to FIG. The connector 1001 of the core unit 10 is connected to the connector 120 of the reader unit 1 by a cable. This connector 1
Three kinds of signals are built in 001, and the signal line 1054 is for an 8-bit multivalued video signal and a video control signal. The signal line 1051 communicates with the CPU 122 in the reader 1, and the signal line 1
052 communicates with the SUBCPU 123 in the reader 1. Signal line 1052 and signal line 105
3 is subjected to communication protocol processing by the communication IC 1002,
Communication information is transmitted to the CPU 1003 via the CPU bus 1053.

The signal line 1054 is a bidirectional signal line, and is capable of receiving information from the reader 1 in the core unit 10 and outputting information from the core unit 10 to the reader unit 1. The signal line 1054 is connected to the binarization circuit 1004, the connector 1010, and the connector 1013. The connector 1010 is connected to the file unit 5, and the connector 1013 is connected to the image memory unit 9.
Connected with.

The binarization circuit 1004 is connected to the signal line 105.
It has a function of converting the 4-bit multi-level signal of 4 into a binary signal. The binarization circuit 1004 includes a multilevel signal line 10
Simple 2 to binarize 54 signal at fixed slice level
It has a binarizing function, a binarizing function by a variable slice level in which the slice level varies from the values of pixels around the pixel of interest, and a binarizing function by an error diffusion method. The output signal line 1055 of the binarization circuit 1004 is the rotation circuit 1
005 and the selector 1008.

The rotating circuit 1005 functions together with the memory 1006, and after converting the information output from the reader unit 1 into a binary signal in the binarizing circuit 1004 via the connector 1001, it is controlled by the rotating circuit 1005. Memory 10
Information from the reader is stored in 06. Next, the CPU 10
The rotation circuit 1005 causes the memory 1
The information from 006 is rotated and read. The output signal line 1056 of the rotation circuit 1005 is connected to the expansion circuit 10
It is input to 07.

Enlargement circuit 1007 uses signal line 1056
First, the binary signal of is converted into a multi-valued signal. Signal line 1
When the signal of 056 is 0, it is converted into 00hex, and when the signal of the signal line 1056 is 1, it is converted into FFhex. The enlarging circuit 1007 is X-powered by an instruction from the CPU 1003.
It is possible to set the enlargement ratio independently of the direction and the Y direction. The expansion method is a first-order linear interpolation method. The output signal line 1054 of the expansion circuit 1007 is connected to the CPU 1003.
Is input to the connector 1001, the connector 1010, or the connector 1013.

Output signal line 10 of binarization circuit 1004
55 and the output signal line 1056 of the rotating circuit 1005 are input to the selector 1008 and selected by the instruction of the CPU 1003. The output signal line 1058 of the selector 1008 has a connector 1009 and a connector 101.
0, and the connector 1012.

The CPU bus 1053 is connected to the CPU 1003,
Communication IC 1002, connector 1009, connector 101
0, connector 1011, connector 1012, connector 1
013 is connected. CPU 1003 is a communication IC
Communication with the reader unit 1 is performed via 1002. Also, C
The PU 1003 communicates with the fax unit 4 via the connector 1009. Similarly, communication is performed with the file unit 5 via the connector 1010, the computer interface unit 7 via the connector 1011, the formatter unit 8 via the connector 1012, and the image memory unit 9 via the connector 1013.

The signal flow of the core section 10 and each section will be described below.

First, the operation of the core unit 10 based on the information of the fax unit 4 will be described from the case of outputting the information to the fax unit 4.

The CPU 1003 communicates with the CPU 122 of the reader unit 1 via the communication IC 1002 and issues a document scan command. The reader unit 1 causes the scanner unit 104 to scan the document according to this command,
The image information is output to the connector 120. The reader unit 1 and the external device 3 are connected by a cable, and the information from the reader unit 1 is input to the connector 1001 of the core unit 10. The image information input to the connector 1001 is multivalued 8
Binarization circuit 100 through signal line 1054 of bit
4 is input.

The binarization circuit 1004 has a signal line 105.
The 8-bit multilevel signal of 4 is converted into a binarized signal. This 2
The binarized signal is sent from the signal line 1055 to the selector 1008.
Alternatively, it is input to the rotation circuit 1005. Rotating circuit 100
The output signal line 1056 of No. 5 is also input to the selector 1008, and the selector 1008 selects either the signal line 1055 or the signal line 1056. The signal selection is
It is determined by the CPU 1003 communicating with the fax unit 4 via the data bus 1053. Selector 100
The binarized signal from 8 is sent from the signal line 1058 to the fax unit 4 via the connector 1009.

Next, the case of receiving information from the fax unit 4 will be described. The image information from the fax unit 4 is transmitted to the signal line 1058 as a binarized signal via the connector 1009. Selector 1008 is CP
According to the instruction of U1003, the input signal from the signal line 1058 is output to the signal line 1055 or the signal line 1056. When the signal line 1055 is selected, the binarized signal from the fax unit 4 is rotated by the rotation circuit 1005 and then input to the next enlargement circuit 1007.
The signal line 105 as an output signal from the selector 1008
When 6 is selected, it is directly input to the enlarging circuit 1007 without undergoing the rotation process. The enlarging circuit 1007 converts the binarized signal into an 8-bit multivalue, and then performs an enlarging process by a linear interpolation method of the first order.

The 8-bit multilevel signal from the expansion circuit 1007 is sent to the reader unit 1 via the connector 1001.
The reader unit 1 inputs this signal to the external I / F switching circuit 119 via the connector 120. The external I / F switching circuit 119 inputs the signal from the fax unit 4 to the Y signal generation color detection circuit 113. The output signal from the Y signal generation color detection circuit 113 is subjected to the above-described processing and then output to the printer unit 2 to form an image on an output sheet.

Next, details of the fax unit 4 will be described with reference to FIG.

The fax unit 4 is connected to the core unit 10 by the connector 400 and exchanges various signals. The signal on the signal line 451 is a bidirectional binarized image signal and is connected to the buffer 401. The buffer 401 outputs the bidirectional signal on the signal line 451 to the output signal line 452 from the fax unit 4 and the input signal line 453 to the fax unit 4.
To separate. The signals on the signal line 452 and the signal line 453 are input to the selector 402, and the selector 402
Is selected by an instruction from the CPU 412.

That is, when the binary information from the core unit 10 is stored in any of the memories A405 to D408, the selector 402 selects the signal line 453. When data is transferred from one memory (any one of A405 to D408) to another memory, the selector 402 selects the signal line 452.
The output signal (signal line 453) of the selector 402 is input to the scaling circuit 403 and subjected to scaling processing.

When the reading resolution 400 dpi of the reader unit 1 is transmitted by fax, the scaling circuit 403 converts the resolution according to the fax on the receiving side. Magnification circuit 403
Output signal (signal line 454) is input to the memory controller 404, and under the control of the memory controller 404, the memory A 405, the memory B 406, and the memory C 40.
7. Any of the memories D408 or two sets of memories connected in cascade.

The memory controller 404 is the CPU 41.
According to the instruction No. 2, a mode for exchanging data with the memory A 405, the memory B 406, the memory C 407, the memory D 408 and the CPU bus 462, and a mode for exchanging data with the CODEC bus 463 of the CODEC 411 having an encoding / decoding function. , Timing generation circuit 40
Binary video input data (signal line 45
4) has the four functions of the mode of storing in any of the memories A405 to D408 and the mode of outputting the memory contents from any of the memories A405 to D408 to the read signal line 452. Memory A405,
The memory B406, the memory C407, and the memory D408 are
Each has a capacity of 2 Mbytes and stores an image corresponding to A4 at a resolution of 400 dpi.

The timing generation circuit 409 is connected to the connector 400 by a signal line 459, and has control signals (HSYNC, HEN, VSYNC) from the core section 10.
C, VEN) to generate signals to achieve the following two functions. One is one of the memory A405 to the memory D408 for the image signal from the core unit 10.
The function of storing in one memory or the two memories, and the function of transmitting to the read signal line 452 from any one of the memories A405 to D408.

The dual port memory 410 is connected to the CPU 1003 of the core unit 10 via a signal line 461 and the CPU 412 of the fax unit 4 via a signal line 462. Each CPU exchanges commands via the dual port memory 410. SCSI
The controller 413 interfaces with a hard disk connected to the fax unit 4. Stores the data when sending a fax and when receiving a fax.

The CODEC 411 reads out the image information stored in any one of the memories A405 to D408 and encodes the image information in any one of the MH, MR, and MMR systems, and then stores it in any one of the memories A405 to D408. It is stored as encoded information. Also, the memory A4
05 to the memory D 408, the coded information stored in the memory D 405 is read and decoded by a desired method of MH, MR, and MMR, and then stored in any of the memories A 405 to D 408 as the decoded information, that is, image information. .

The MODEM 414 has a function of modulating the coded information from the hard disk connected to the CODEC 411 or the SCSI controller 413 for transmission on the telephone line, and demodulating the information sent from the NCU 415 to obtain the coded information. And the encoded information is transferred to the hard disk connected to the CODEC 411 or the SCSI controller 413.

The NCU 415 exchanges information according to a predetermined procedure with an exchange installed directly in the telephone office or the like, which is directly connected to the telephone line.

Next, an example of control in fax memory transmission will be described. The binarized image signal from the reader unit 1 is input from the connector 400 and is input to the buffer 401 via the signal line 451. The buffer 401 is the CPU 4
With the setting of 12, the signal on the signal line 451 is output to the signal line 453. The signal on the signal line 453 reaches the scaling circuit 403 after being input to the selector 402.

The scaling circuit 403 has a resolution of 4 in the reader unit 1.
Convert from 00 dpi to fax transmission resolution. The signal on the output signal line 454 from the scaling circuit 403 is stored in the memory A 405 by the memory controller 404. The timing stored in the memory A 405 is generated by the timing generation circuit 409 according to the timing signal (signal line 459) from the reader unit 1.

The CPU 412 is the memory controller 40.
4 memory A 405 and memory B 406 are CODEC
It is connected to the bus line 463 of 411. CODEC41
1 reads the image information from the memory A405,
Encoding is performed by the R method, and the encoded information is written in the memory B406. CODEC41 for A4 size image information
When 1 is encoded, the CPU 412 connects the memory B 406 of the memory controller 404 to the CPU bus 462.

The CPU 412 sequentially reads the encoded information from the memory B 406, and the SCSI controller 41
Transfer to 3. The hard disk 11 stores the code data transferred from the SCSI controller 412 sequentially from the subsequent page.

Next, the processing at the time of transmission will be described.
The stored data is the SCSI controller 41
3, the memory controller 40 via the CPU bus 462
No. 4 memory C407.

The CPU 412 is the memory controller 40.
Controlling 4 connects the data line 457 of the memory C407 to the line 463 of the CODEC 411. The CODEC 411 sequentially reads the encoded data of the memory C407 and decodes it, that is, stores it in the memory D408 as image data. The CPU 412 performs header processing on the image data stored in the memory D 408, re-encodes it via the CODEC 411, and writes it in the memory A 405.

The CPU 412 also sequentially reads the coded information from the memory B 405 and transfers it to the MODEM 414. MODEM 414 modulates the encoded information and sends the fax information over the telephone line via NCU 415.

Next, an example of control in fax reception will be described. The information sent from the telephone line is NCU415
The NCU 415 connects to the telephone line by a predetermined procedure. The information from NCU415 is MODEM414
Entered and demodulated. The CPU 412 is the CPU bus 462.
Information from the MODEM 414 via the memory C407
Remember.

When the information of one screen is stored in the memory C407, the CPU 412 controls the memory controller 404 to cause the data line 457 of the memory C407.
To line 463 of CODEC 411. COD
The EC 411 sequentially reads the encoded information in the memory C 407 and decodes it, that is, as the image information, the memory D 40.
Store in 8. The CPU 412 communicates with the CPU 1003 of the core unit 10 via the dual port memory 410, and makes settings for printing out an image from the memory D 408 through the core unit 10 to the printer unit 2.

Upon completion of this setting, the CPU 412
The timing generation circuit 409 is activated, and the signal line 4
A predetermined timing signal is output from 60 to the memory controller. The memory controller 404 reads the image information from the memory D 408 in synchronization with the signal from the timing generation circuit 409 and transmits it to the signal line 452. The signal on the signal line 452 is input to the buffer 401 and output to the connector 400 via the signal line 451. The description up to the output from the connector 400 to the printer unit 2 is omitted because it has been described in the description of the core unit 10.

FIG. 6 is a plan view showing the structure of the operation panel provided in the reader section 1. In FIG. 6, the display unit 6
Reference numeral 01 is composed of an LCD or the like, and displays the operating state of the device and various messages. The surface of the display unit 601 is a touch panel, and touching this surface serves as a selection key. The ten-key pad 602 is a key for mainly inputting numbers such as dial numbers, and the start key 603 is a key for instructing the start of various operations.

Next, the document reading / transmitting operation, which is a feature of this embodiment, will be described.

FIG. 7 is a flow chart showing the operation in this embodiment.

First, a document feeding device 10 shown in FIG.
Put 1 face up. Here, the manuscript is CCD1 from the bottom.
09 is read by S09 (S101), and the original is encoded on the FAX board page by page (S1).
02).

This encoded data is stored in a memory (first image storage means) such as a hard disk (S1).
03), the remaining amount of the memory is calculated here (S104), and if it is readable, the document of the next page is read. This same operation is repeated, and when all the originals have been read, the destination is called, and when the original is ready for transmission, it is taken out of the hard disk in the reverse order of the reading order and decrypted. Then, information is added by header processing or the like, encoded again, and transmitted.

Further, in S104, if the remaining amount of memory does not reach a certain value in the middle of the process, the original reading cannot be performed thereafter, and the data up to that point is set to 1
Consider as a job. Here, in order to convey this situation to the destination, the transmission contents are encoded in advance as character data, stored, read out and expanded in the memory (second image storage means) to display the image. Is formed, encoded (S105), and transmitted together with the previous image data (S106). FIG. 8 is an explanatory diagram showing an example of character data prepared in advance in this embodiment. As shown in the figure, in this embodiment, the image data of the original is sent in the order of reading from the subsequent page, and the additional data of FIG. 8 is added to the end of the image data.

By adding the message having such contents to the data which has been divided on the way and transmitting it, the receiving side can know that the received information is the one which is divided on the way, and in particular, in the present embodiment. As described above, unnecessary confusion can be avoided even when the document is read from the end and transmitted halfway.

The transmission order in S106 can be changed as appropriate. For example, the image data of the document may be arranged in the order of younger pages, and additional data may be added to the head of the image data. It should be noted that the content of the additional data in this case does not need to be “transmitted from subsequent page” in FIG. Further, the additional data may be added at two places before and after the document data.

Further, the contents of the above-mentioned additional data may be set by the user by a predetermined key operation.

Further, the number of remaining pages can be included in the additional data.

FIG. 9 is a flow chart showing the operation in this case. In the figure, S101 to S105 are almost the same as those in FIG. Then, in FIG. 9, in step S206, the remaining manuscripts are subjected to a blank count to obtain the number of pages of the remaining manuscripts. Then, the number of pages is combined with the additional data (S20
7) Add this to the image data of the original and send it (S
208). The contents of the additional data in this case are as shown in FIG. 10, for example.

In this way, the receiving side can know how many pages are left, which is convenient. As for the remaining originals which have been counted in the empty state as described above, the original feeding device 101 is provided with a mechanism for conveying the originals once passed through the CCD to the original table again, so that only the remaining originals are returned to the original table. By controlling as described above, it is possible to automatically continue the transmission after the division.

Further, when the original is sent from the subsequent page as in the above embodiment, the cover is not included, and therefore the receiving side cannot know the destination of the original until the remaining all pages are received. . Therefore, in the case of sending a document that has been divided in the middle, not only the additional data as described above, but also the cover such as the invoice may be sent together. This is because in the above-described memory full determination, the memory is determined to be full, leaving sufficient capacity to store the image data for one page of the cover, and the image halfway up when the memory full actually occurs is transmitted. If this happens, the remaining originals are counted to recognize the last counted page as the cover page, read it, and send it together with the already read image data and the additional data described above.

FIG. 11 is a flow chart showing the operation in this case. In the figure, S101 to S105 are the same as those in FIG. Then, in FIG. 11, the remaining manuscripts are counted in the empty state in S306, the last page is regarded as the front cover, read, encoded and stored in the memory (S307). Then, the image data of the cover, the image data already read, and the additional data are edited and transmitted (S30).
8).

As the transmission order in this case, for example, the cover is first sent, then the images of the respective original pages are sent from the subsequent pages, and the additional data is added at the end. In this way, the destination and contents of the original can be known on the receiving side from the cover page sent first. The operation of FIG. 11 and the operation of FIG. 9 may be combined.

Further, in each of the above embodiments, the apparatus for sequentially reading the original pages from the rear page using the original feeding apparatus has been described. However, even when the apparatus sequentially reads the original pages from the first page and the memory becomes full, Similar to the above-described embodiment, if the data read so far is regarded as one job and additional data is added and transmitted, the same effect can be obtained. In this case, since the cover sheet is fed first, the control shown in FIG. 11 is not necessary, but the other application examples described above can be similarly applied.

[0077]

As described above, according to the present invention,
When a memory full occurs during memory transmission, for the original that cannot be transmitted at the same time, the image data that was read halfway and additional data that indicates that it is in the middle are edited and automatically sent, It is possible to prevent confusion on the reception side by notifying the reception side user that the transmission operation is not interrupted by the division transmission of the transmission document and the partial transmission is performed from the subsequent page.

[Brief description of drawings]

FIG. 1 is a block diagram showing a system configuration in an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a configuration of a mechanical portion in the above embodiment.

FIG. 3 is a block diagram showing a configuration of an image processing circuit in the above embodiment.

FIG. 4 is a block diagram showing a configuration of a core unit which is a core of control in the above embodiment.

FIG. 5 is a block diagram showing a configuration of a fax unit in the above embodiment.

FIG. 6 is a plan view showing a configuration of an operation unit in the above embodiment.

FIG. 7 is a flowchart showing a processing operation of the first embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a specific example of additional data in the first embodiment.

FIG. 9 is a flowchart showing the processing operation of the second embodiment of the present invention.

FIG. 10 is an explanatory diagram showing a specific example of additional data in the second embodiment.

FIG. 11 is a flowchart showing the processing operation of the third embodiment of the present invention.

[Explanation of symbols]

 1 ... Reader unit, 2 ... Printer unit, 3 ... External device, 4 ... Fax unit, 7 ... Computer interface unit, 8 ... Formatter unit, 9 ... Image memory unit, 10 ... Core unit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Kaneko 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Yoshiyuki Suzuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Co., Ltd. (72) Inventor Yoshihiko Suzuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Matsutsuka Huang, 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Hirohiko Tashiro 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Akiyoshi Kimura 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Invention Minoru Nada 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Shinichi Nakamura 3-30-2 Shimomaruko, Ota-ku, Tokyo Non-Incorporated (72) Inventor Noriyuki Miyake 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Kenji Kobayashi 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. Within

Claims (4)

[Claims] 1. An image forming apparatus having a facsimile function, a reading means for reading an original and converting it into image data; a data converting means for compressing / expanding the image data;
First image storage means for storing image data including the image data after the compression / decompression; character storage means for storing character data indicating that the document transmission is divided in advance on the way; and by this character data Second image storage means for storing the formed image as additional data; determination means for determining the remaining capacity in the first image storage means during image reading; and shortage of the remaining capacity based on this determination means A read control means which, when judged, judges that the reading of one job is completed by the read image data; and a memory for editing and processing each data stored in the first image storage means and the second image storage means A control means; and a transmission control means for transmitting the image data edited and processed by the storage control means to a public line. Image forming apparatus. 2. The reading means according to claim 1, wherein the reading means reads a plurality of pages of the document in order from the last page, and the judging means leaves at least the storage capacity for the cover page and lacks the remaining capacity. When it is determined that the remaining capacity is insufficient based on the determination means, the reading means and the reading control means further execute the reading of the cover page by idling the original, and the image of the cover page is read. An image forming apparatus characterized in that data is added to the edited image data and transmitted to a public line. 3. The image forming apparatus according to claim 2, wherein the image data of the cover page is added to the beginning of the image data to be transmitted, and the additional data is added to the end of the image data to be transmitted. 4. The method according to any one of claims 1 to 3, further comprising means for counting subsequent manuscript pages when it is determined that the remaining capacity is insufficient and reading of one job is completed. An image forming apparatus characterized in that the number of remaining pages obtained by the above is included in the additional data.