DE4439113A1 - Document circulating device - Google Patents

Abstract

A document circulating device can be operated easily and assist the transmission and storage of data.

Description

The invention relates to a document circulation device according to the Preamble of claim 1, 8, 15, 25 or 27 to 29, and relates in particular a document circulation device, which in an elec tronic mail system is usable.

Offices generally have different types of image processing processing facilities, for example with copiers, printers / printers ters, facsimile machines and personal computers. The Data processing devices handle circulation documents for the trans fer of data, of collected data, of data that are transferred to another section to be sent, stored data, etc. About it In addition, notebook personal computers are unique used, and therefore they cannot easily enter a network be bound. In addition, most documents, which have been generated by means of personal computers in the form of Hard copies are sent so that it is cumbersome, for example the Reach environment with a direct transmission. At facsimi There is a difficulty for users to hang from them and another problem that users are likely to have overlooked received documents intended for them.

Data that is handled in offices is also used to write  tables "flooded" and the data is often lost or can cannot be easily distinguished. Because a considerable amount of time is necessary to circulate the data, it is not possible read the necessary data when such data is needed. Each the desired data copied by the office staff, whereby the An number of papers increases even more. Whether to transfer data to a person can or not, which it needs, can also not be determined. It is also difficult to be completely safe agreed to assign a member and set a priority order put. When the number of meetings or conferences increases, who the data relating to a specific position, a specific point in time, etc. represent, messed up. In addition, calls often force People to open neighboring rooms in a very annoying way search and leave messages.

According to the invention, therefore, an easy to handle document circulation facility to be created to transfer and Operate and support data storage. According to the Er This is the invention for a document circulation device according to the Preamble of claim 1, 8, 15, 25 or 27 to 29 by the Merk male achieved in the characterizing part of each claim. Before partial further training is the subject of one of the above the claims directly or indirectly related claims.

With the device according to the invention, part of the image and Do. document data entered into the memory via the Network system to be transferred to end points. If the Einrich device additionally has an optical plate, it can selectively Copy image and document data and save it between a memory move in the network and the optical disk.

The invention based on preferred embodiment shape with reference to the accompanying drawings explained. Show it:  

Fig. 1 is a sectional view of a document circulation device ge according to the invention;

Figures 2 and 3 are a plan and side view of an optical Leseab section in the embodiment;

Fig. 4 is a schematic block diagram of a control unit in the embodiment;

Figs. 5 and 6 are block diagrams which, when they are connected, len schematically a more specific arrangement of the control unit depicting;

Fig. 7 is a schematic block diagram of an image scanner section in the control unit;

Fig. 8 is a schematic block diagram of an image processing unit in the image scanner;

Fig. 9 types of data, which have been given from the image processing unit selectively from;

Fig. 10 is a block diagram schematically illustrating a memory system included in the control unit;

Are written Figure 11 is a system in which image data from the image processing unit once in a memory system contained in the memory means.

Are written in which processed image data, and raw data from the image processing unit in the storage device 12 is a system.

Fig. 13 is a block diagram schematically showing a specific construction of a storage device;

Fig. 14 is a schematic block diagram of a storage unit included in the storage device of Fig. 13;

Fig. 15, three different types of image data;

FIG. 16 is a block diagram schematically illustrating another embodiment of the storage means;

Fig. 17 is a block diagram of an arrangement for storing image data using an external memory;

FIG. 18 is a block diagram schematically illustrating yet another specific embodiment of the fish storage means;

Fig. 19 is a schematic block diagram of a system section contained in the control unit;

A schematic block diagram of a control circuit section in the Systemab Figure 20 is contained.

Fig. 21 memory areas defined on a hard disk;

FIG. 22 is a section of an alternative embodiment of the invention;

FIG. 23 is a block diagram schematically illustrating a system section included in the alternative embodiment;

Fig. 24 and 25 are block diagrams that schematically, when they are connected, a more specific structure of a in the exporting of FIG approximate shape playback controller incorporated. 22;

Fig. 26 is a schematic block diagram of a specific structure of a memory block included in the control unit of the alternative embodiment;

Fig. 27 is a bar code label, and

Fig. 28 shows a specific document bearing a bar code mark.

1 shows a document circulation device according to the invention. The device generally consists of six units, ie a main part A, an automatic document feeder unit (ADF) B, a sorter C, a turning unit D, a system section E and an OCR section F. The main part A has one Scanner, write, photoconductive element, develop and sheet feed sections.

The various sections listed above are detailed and are operated as follows.

[Scanner section]

A first scanner has a reflector 1 , a light source 3 and a first mirror 2 , which are movable at a constant speed. A second scanner is provided with a second mirror 4 and a third mirror 5 and can be moved at a speed which is half the speed of the first scanner. When the first and second scanners optically scan a document, not shown, placed on a glass plate 9 , the resulting image reflection from the document is passed through a color filter 6 and a lens arrangement 7 to a one-dimensional solid-state imaging device 8 . Although the light source 3 is generally designed as a fluorescent tube or a halogen lamp, a fluorescent tube predominates because it has a stable wavelength and a long service life. Although only a single light source is used in this embodiment, two or more light sources can also be used. Since the imaging device 8 has a constant sampling clock, the fluorescent tube 3 should be switched to a frequency which is higher than the sampling clock; otherwise images would be adversely affected.

In general, the imaging device is designed as a CCD (charge-coupled) image sensor. The analog image signal from the imaging device 8 is converted into a digital image signal and then subjected to various types of image processing (two-level or multi-level conversion, color processing, enlargement, processing, etc.) on an image processing field 10 . The resulting digital signal is a collection of points. In order to generate color image data, the embodiment has a color filter 6 which can be moved into and out of a light path which runs from the document to the imaging device 8 , so as to transmit only the data of a required color. The color filter 6 is moved into and out of the light path in synchronism with the scanning of the document. Each time the color filter 6 is moved, a multiplex image transfer function or a duplex copying function is enabled to make various types of copies.

[Writing section]

The processed image data are written on a photoconductive drum in the form of an accumulation of beam spots by means of raster scanning of a laser beam. In particular, a laser beam, which comes from a semiconductor laser 20, is collimated by a collimator lens 21 and then shaped by an aperture 32 so that it has a predetermined shape. The shaped laser beam is then compressed using a first cylindrical lens 22 in the sub-scanning direction and then strikes a polygonal mirror 24 . The polygon mirror 24 , which has a precisely polygonal section, is rotated by a motor 25 at a predetermined speed in the predetermined direction. The rotational speed of the polygon mirror 24 is defined by the rotational speed and the writing density of the Trom mel 40 and the number of surfaces of the mirror 24 is set.

The laser beam incident on the polygonal mirror 24 is controlled by an offset in rotation mirror 24th The beam from the mirror 24 is one after the other in fu lenses 26 a and 26 b ben, which implement the scanning beam with the help of a constant Winkelge speed, so that it scans the drum 40 with constant Ge speed. As a result, the beam is focused on drum 40 as a minimum beam spot. In addition, the fu lenses 26 a and 26 b are provided with a mechanism to compensate for irregularities in the configuration of the polygonal mirror 24 . The transmitted by the lenses 26 a and 26 b beam is directed by means of a mirror 29 to a synchronizing section 30 which is arranged outside an image section. In the synchronizing section 30 , the beam is guided to a sensor 30 via an optical fiber. After a synchronizing signal indicating the beginning of a line in the main scanning direction has appeared, a line of image data is output after a predetermined period of time has passed. This is repeated to end a single picture.

[Photoconductive Element Section]

The drum 40 has a photoconductive layer on its peripheral surface. The photoconductive layer can be implemented by an organic photoconductor (OPC), an α-Si, Se-Te or a similar substance which is sensitive to a semiconductor laser (wavelength of 780 nm). In the present embodiment, an organic photoconductor is used. In general, for a laser beam writing, a negative-positive (N / P) process in which an image is partially illuminated, and a positive-positive (P / P) process in which a background is illuminated. In the illustrated embodiment, the N / P process is applied.

A main loader is a conventional scorotron with a grid on the drum 40 side . The charger 41 charges the surface of the drum 40 uniformly with negative polarity. The laser beam that strikes the charged surface of the drum 40 lowers its potential. As a result, the potential on the surface of the drum is 40 -750 V to -800 V on the background and about -500 V in the image area on which an electrostatic latent image is formed. A main development unit 42 a and an additional development unit 42 b, to which a bias voltage of -500 V to -600 V is applied, each apply toner to a development roller to develop the latent image.

[Development stage]

If only black is developed, the additional development unit 42 b and a toner refill unit 43 b are not provided. A toner refill unit 43 a is assigned to the main development unit 42 a, and black toner is accommodated in it. The toner refill unit 43 b, which is assigned to the additional development unit 42 b, contains color toner. Although a latent image is developed in one color, the main pole of the other development unit can be loaded. In development, the reading of image data caused by the replacement of the color filter 6 and the multiplex image transfer function and the duplex copying function available in the sheet transport system are combined. As a result, multifunctional color copying and color processing is carried out. For development in three or more colors, three or more development units can be arranged around the drum 40 , or a turret can be used, in which such development units are accommodated.

When a sheet is fed synchronously with respect to the drum 40 , the image which has been developed by means of the developing units 42a and 42b is transferred to the sheet by a transfer charger 44 . To this end, the transfer charger 44 applies positive charge to the back of the sheet. A separator charger 45 forms a unit with the transfer charger 44 and separates the sheet carrying the image from the drum 40 by means of an AC discharge. After the image transmission, the to ner remaining on the drum 40 is removed by means of a cleaning blade 47 and collected in a container. Furthermore, the potential pattern, which also remained on the drum 40, is extinguished by means of a discharge lamp 49 .

A photosensor 50 is positioned immediately after the development position and has a light-emitting element and a light-sensitive element. In the writing position, a predetermined pattern, for example a black or mesh pattern, is written on the position of the drum 40 which speaks to the photosensor 50 . After the predetermined pattern is developed, the photosensor 50 determines the reflectivity of the developed pattern and that of the other part of the drum 40 . A relationship between these reflectivities indicates the density of the image. When the density is low, a toner replenishment signal is given. If the density does not increase even after refilling, it is determined that the amount of toner is scarce.

[Sheet feeding section]

In the illustrated embodiments, sheet cassettes 60 a to 60 c are each loaded with a stack of sheets of a certain size. A sheet bearing an image on one side is passed through a return loop 72 for duplex copying or is fed again. After one of the cassettes 60 a to 60 c is selected, a start button is pressed. Then a take-off roller 61 ( 61 a, 61 b, 61 c), which is assigned to the cassette 60 , is selected, it begins to rotate and feeds a sheet until the front edge of the sheet abuts an alignment roller 61 which is stationary .

The registration roller 62 begins to rotate at a time which conforms to the image formed on the drum 40 , whereby the sheet is transported toward the peripheral surface of the drum 40 . After transferring the image from the drum 40 to the sheet, a separating and conveying section 63 advances the sheet by sucking it up. The toner image is then fixed on the sheet by means of a heating roller 64 and a pressure roller 65 , which form a fixing unit. In the normal copying process, the sheet coming from the fixing unit is passed through a path selector in the direction of an outlet which is connected to the sorter C. In a multiplex copy operation, the sheet is passed through the path selectors 68 and 69 via the feedback loop 72 towards the registration roller 62 .

Although duplex copying operation can be performed only by the main part A or by a combination of the main part A and the turning unit D, the following description focuses on the combination scheme. The sheet that is directed downward by the path selector 67 is further directed downward by the path selector 68 and then directed by the path selector 69 to a tray 70 that is located under the feedback loop 72 . A roller 71 turns the sheet over and feeds it in the opposite direction. At this time, the web selector 69 is arranged to direct the tape over the return loop 72 to the registration roller 62 .

[Automatic Document Feeder (ADF) B]

The ADF unit automatically feeds a stack of documents, one by one, to the glass plate 9 and discharges it after copying. In particular, documents are stacked on a plate 100 and neatly positioned by side guides 101 in the width direction. A take-off roller 104 separates one of the documents from the other and conveys them to the tray 100 . A conveyor belt 102 conveys the document to a predetermined position on the glass plate 9 . After the document on the glass plate 9 has been copied a desired number of times, it is discharged onto a tray 103 . It is possible to determine the document size based on the positions of the side guides 101 and by counting the feeding time of the document.

[Sorter C]

The sorter has compartments 111 a to 11 x and distributes copies, which come one after the other from the main part 1 , to a specific compartment of the subjects 111 a to 111 x. In particular, when a number of rollers are driven by a motor 110 to feed the copies sequentially, claws adjacent the inlets of the trays 11 direct the copies into the associated trays 111 .

[Turning unit D]

Although only a single, bilateral or duplex copy can be produced in the main part A, the reversing unit D can be used to produce a number of duplex copies when it is connected to the main part A. In order to produce a number of duplex copies, the sheet which carries an image on one of its sides and is guided downwards by a discharge roller 66 is passed in the direction of the turning unit D by the web selector 67 . Such sheets are stacked one after the other by means of a discharge roller 120 on a tray 123 . At this time, a feed roller 121 and a side guide 122 cooperate to arrange the sheets neatly in the vertical and horizontal directions. In the case of copying on the back, the sheets are fed one after another by means of a refeed roller 124 from the tray 123 . At this point, the web selector directs the sheets directly into the return loop 72 .

In Fig. 1, a soundproof glass plate 23, a mirror 27, a dust-proof glass plate 28, a lens holding unit 31, a sheet separator 46, a main motor 80 and a fan motor 81 are shown.

[Electrical control section]

In FIG. 4, a control unit for controlling the entire device has a main control circuit 140, a sheet feed control circuit 141, a duplex copy-control circuit 142, a sorter control circuit 143, an ADF control circuit 144, and a scanner control circuit 213. The control circuits and the circuit control sensors and brine noids are shown in FIG. 4. An application system 214 , a CCD image sensor 221 , an image processing (IP) unit 225 and a storage unit 263 are also provided. As is shown in detail in FIGS. 5 and 6, the central unit has 2 central units (CPUs), ie a sequence control central unit 201 and a main control unit 202 , which are assigned to a sequence control or an operating control. The central units 201 and 202 are connected to one another by means of a serial interface (RS 232C).

Sequence control is described first. One consequence sets and outputs conditions relating to sheet transport and image formation. Connected to the sequence control central unit 201 are sensors 203 which relate to sheet transport and contain size sensors, a discharge sensor and an alignment sensor, a duplex copying unit 204 , a high-voltage energy source 205 , control units 206 for controlling relays, solenoids and motors, and a sorter unit 207 , a laser beam scanner unit 208 , an image control circuit 209 , etc. Regarding the sensors 203 , the central unit 201 receives output signals from size sensors which respond to the size and orientation of sheets, and outputs electrical signals which indicate this from sensors responsive to alignment and sheet discharge, sensors responsive to an oil end condition, a toner end condition, and other supply conditions, and sensors responsive to an open door, fuse blow, and other mechanical faults.

The duplex copying unit copying unit 204 includes a motor for regulating the sheet width, a sheet feed clutch, a solenoid for guiding sheets, a sensor for sensing the presence / absence of sheets, a size home position sensor for regulating the sheet width, and sensors which are relate to a sheet transport. The high voltage power source 205 applies to the main, transfer and isolating charger and to a bias electrode for development a specific high voltage of a specific power, which has been previously determined by a pulse width modulation (PWM) controller . The drive units 206 each control a sheet feed clutch, an alignment clutch, a counter, a motor, a toner replenishing solenoid, a power relay, a fuser heater, etc. The central unit 201 is connected to the sorter unit 207 by a serial interface and effects the transport of sheets and their discharge onto the compartments at a specific time in accordance with signals from the sequence control.

A fixing temperature, a photosensor output signal, a laser diode monitor input signal and a laser diode reference voltage are applied to the analog input of the CPU 201 . Upon receipt of the output signal of a thermistor contained in the fixing unit, the central unit 201 controls the heating unit or the phase thereof, so that the fixing unit remains at a predetermined temperature. A photosensor or a phototransistor senses a photosensor pattern generated at a predetermined time and outputs its output signal to the CPU 201 . Accordingly, the CPU 201 determines the density of the pattern and controls the engagement / disengagement of a toner replenishing clutch, thereby controlling the toner concentration. Also, the central unit 201 uses the pattern density to determine an end of toner condition.

An analog-to-digital converter (ADC) and the analog input signal at the central unit 201 are used to keep the energy of the laser diode constant. In particular, the monitor voltage when the laser diode is turned on is controlled to a predetermined reference voltage (which is chosen so that the laser diode has 3 mW of power).

The main or operational CPU 202 controls a number of serial ports and an integrated calendar circuit 211 . A control panel 212 , a scanner control circuit 213 , an application 214 , an editor 215 , etc. and the sequence control central unit 201 are connected to the serial connections. Control panel 212 has displays to indicate operator keystrokes and copier states. The keystrokes are provided to the central processing unit 202 by serial data transmission. Accordingly, the central unit 202 determines whether the displays on the control panel 212 are switched on or not, and then transmits the decision result to the control panel 212 by serial transmission. As a result, the displays are turned on or off from the control panel 212 , as instructed by the CPU 202 .

The scanner control circuit 213 sends information related to the scanner servo motor drive control and image processing to the main CPU 202 through serial communication. The application unit 214 likewise connects an external device, such as a facsimile device or a printer, to the central unit 202 and exchanges predetermined information with it. The editor 215 is accessible to effect an input and editing function. Image processing data (masking, trimming, image shifting, etc.) entered by the operator on the editor 214 is sent to the central processing unit 202 by serial communication. The integrated calendar circuit 211 stores the date and time and can then be accessed by the central unit 202 if necessary. The calendar circuit 211 can display the current time on the control panel 212 and desired times for switching the device on and off can be set.

A link arrangement 216 sends image data (DATA0 to DATA7) and synchronizing signals in each of the following three different directions in accordance with a selection signal from the main CPU 202 .

(1) Scanner control circuit 213 → image control circuit 209

Image signals in the form of 8-bit data (or 4-bit or 1-bit data if necessary) which have been serially transmitted from the scanner are sent to the image control circuit 209 in synchronism with a synchronizing signal PMSYNC from the laser beam scanner unit 208 .

(2) Scanner control circuit 213 → application unit 214

Image signals sent serially from the scanner in the form of 1-bit data (binary) are output in parallel to the application unit 214 . This then sends the input image data to a printer or a corresponding output device which is connected to the device.

(3) Application unit 214 → image control circuit 209

When a facsimile device or similar input device serially inputs image signals in the form of 1-bit data (binary) to the application unit 214 , the application unit 214 transmits the data to the image control circuit 209 in synchronization with the synchronization signal PMSYNC from the laser beam scanner unit 208 .

When image signals in the form of 1-bit data (binary) are input serially from a facsimile device or a corresponding external input device to the application unit 219 , this ( 214 ) transmits the data to the image control circuit 209 in synchronism with the synchronization signal PMSYNC from the laser beam scanner unit 208 .

As shown in Fig. 7, the analog image signal from the CCD image sensor 211 is applied to a signal processing circuit 222 to be amplified, thereby correcting the amount of light thereof. The output signal of the signal processing circuit 222 is transformed into a digital multi-level signal by an AD converter 223 . The digital signal is processed by a shading correction circuit 224 and then input to an image processing (IP) unit 225 .

As shown in Fig. 8, the image signal input by the IP unit 225 has high-frequency components which have been amplified by an MTF (Modulation Transfer Function) correction circuit 231 ; the image signal is electrically magnified by a magnification change circuit 332 and then applied to a gamma (γ) correction circuit 233 . The correction circuit 233 optimizes the input and output characteristics to match the characteristics of the device. A data depth switching mechanism has two switches 234 and 235 , of which the switch 234 transforms the image signal from the correction circuit 233 to a predetermined quantization level. The data depth switching mechanism produces three different types of data, as shown in FIG. 9. A 4 bit circuit 236 outputs 4 bit data. A digitizer 237 digitizes input 8-bit multi-level data to generate binary data or 1-bit data by using a predetermined threshold. A dither circuit 238 generates an area tonality based on the 1 bit data value. The switch 234 selects one of the three different data types and outputs them as DATA0 to DATA7.

In Fig. 7, the scanner control circuit 213 controls a lamp stabilizing (lamp control) circuit 241 , a timing control circuit 242, an electric magnification changing circuit 232 of the IP unit 225 ( Fig. 8), and a scanner drive motor 243 what is commanded by a printer control section. The lamp stabilizing circuit 241 controls the turning on / off of the fluorescent tube 244 and controls the amount of light to be emitted from the lamp 244 as set by the scanner control circuit 213 . A rotating encoder 245 is connected to the output shaft of the scanner drive motor 243 . A position sensor 246 senses a reference position associated with a sub-scan drive mechanism. Circuit 232 effects an electrical magnification change in accordance with main scan magnification data which has been set by scanner control circuit 213 .

The timing control circuit 242 outputs various types of signals according to commands from the scanner control circuit 213 . In particular is when the scanner starts reading a document, the timing control circuit 242 to the CCD image sensor 221 a transfer signal for transferring one line of data to a shift register, and shift clock pulses from bit by bit so as to output the data of the shift register at a given time . The timing control circuit 242 sends pixel-synchronous clock pulses CLK, main scan synchronizing pulses LSYNC and valid main scan period signals LGATE to control units which are responsive to the image processing system. The pixel-synchronous clock pulses CLK are essentially identical to the shift clock pulses which are applied to the CCD image sensor 221 . The main scan synchronizing signals LSYNC are essentially identical to the signals PMSYNC from the beam sensor of the image writing unit; however, they are synchronous with the pixel-synchronous clock pulses CLK. The valid main scan period signal LGATE goes high at the time when the output data (DATA0 to DATA7) is regarded as valid data. In the illustrated embodiment, the CCD image sensor 221 outputs 4800 bits of valid data for each line.

Upon receipt of a read start command from the printer control section, the scanner control circuit 213 turns on the lamp 244 , starts driving the scanner drive motor 243 , controls the timing control circuit 242 , and then an image is read by the CCD image sensor 221 . Furthermore, a valid subsampling period signal FGATE goes high by the scanner control circuit 213 . The high signal FGATE goes low after a lapse of a period, which is necessary for the maximum readable length to be scanned in the sub-scanning direction (the longitudinal direction of an A4 size in this embodiment).

The image signal from the image sensor 221 is output in the form of 8-bit data ( FIG. 9) via the IPP unit 251 , which has a shadow correction, a black level correction and a light quantity correction function. This data is selected using a first multiplexer (MUX1) 252 , processed by the IP unit 225 , which has a high spatial frequency gain (MTF) correction function, a speed change (magnification change) function, a gamma correction function and has a data depth conversion function (8 bit / 4 bit / 1 bit), and is then output to a printer PR via a third multiplexer (MUX3) 244 . Reference number 255 denotes a memory device (MEM).

As shown in Fig. 11, it has been common to write the image data from the IP unit 225 to the MEM device 255 and then transfer it from there ( 255 ) to the printer PR if necessary. It has also been common to write the image data to the MEM device 255 while simultaneously sending it to the printer PR to make the second and subsequent copies with image data stored in the MEM device 255 . In the embodiment, as shown in FIG. 12, data can flow so that the processed data as well as the raw data can be written into the MEM device 255 by the IP unit 225 . For this purpose, three multiplexers (MUX1 to MUX3), which are shown in FIG. 10, are switched in order to change the data flow, for example to produce a number of copies with a single scanning step, while the parameter of the IP unit 225 is changed:

• (a) When the scanner scans a document, a single copy is made using MUX1 through MUX3, selecting A, B and A, respectively. Under this condition, raw data are written into the MEM device 255 via the MUX2, and
• (b) for the second and subsequent copies, the MUX1 selects B to transmit the data from the MEM device 255 to the IP unit 225 and from there via the MUX3 to the printer PR. Each time a copy is made, the parameter in the IP unit 225 is changed.

In order to store 1-bit data or similar compact data, the MUX1 selects A to write the output signal of the IP unit 225 into the MEM device 225 . In this case, the printer PR selects a two-level data mode (1 bit). In FIG. 2, image data designated EXT IN and EXT OUT are received from the outside and image data are output to the outside.

A specific structure of the MEM device 255 is described with reference to FIG. 13. As shown, the MEM device 255 has a compressor (COMP) 261 and an expander (EXP) 262 , which are arranged before and after a storage unit 263 , so that not only current data but also compressed data are written into the storage device 263 can. Tion a prerequisite in this configura is that the compressor 251 and the expander 262 work with speeds Ge, which are adapted to the speeds of the scanner or printer. To store current data in the storage unit 263 , select both a MUX4 264 and a MUX5 269 A; to save compressed data, select B; an error detector is designated by reference numeral 266 .

As shown in FIG. 14, the memory unit 263 has a memory block 272 and two data width converters, ie an input data width converter 271 and an output data width converter 275 , which are connected to the input and the output of the memory block 272 . These converters 271 and 275 allow the memory unit 273 to handle the three different image types shown in Fig. 15 as well as the compressed or code data. Direct memory control units (DMA1 and DMA2) 273 and 274 read and write data to the predetermined addresses of the memory block 272 , which match the number of packed data and the memory data width. Usually, the rate of image data from the scanner to the scanner remains constant regardless of the data type, ie 8 bit data, 4 bit data or 1 bit data. That is, the period of a single pixel is fixed in one device.

In the illustrated embodiment, the data are sequentially set as 1-bit data, 4-bit data and 8-bit data from the most significant bit (MSB) side of the eight data lines. The input data width modulator 271 and the output data width modulator 275 pack and unpack such data in and out of the data width (16 bits) of the memory block 272 . By packing data, a memory can be used that is adapted to a data depth, and thereby an effective use of the memory device 255 is promoted.

Another specific structure of the storage unit is shown in FIG. 16. The MEM device 255 has a pixel processing (PP) unit 281 instead of a compressor 261 and an expander 262 . The PP unit 281 is a unit that can perform logical operations (e.g., AND, OR, EOR, and non-operations) on the image data. In particular, PP unit 281 can perform logical operations on the memory output and input data and can send the resulting data to the printer / printer or write the resulting data back to the memory unit 263 . The printer / printer or a determination of the data and the storage unit 263 are switched by a MUX6 282 and a MUX7 283 . This type of function is usually used to combine images, for example to store overlay data in the storage unit 263 and then to read them via scanner data.

Fig. 17 shows a specific structure in which image data is stored with the help of an external storage device. As shown, a floppy disk 295 is inserted into a floppy disk drive (FDD) 294 . In order to write image data to the floppy disk 295 , image data are sent from EXT OUT ( FIG. 10) to a floppy disk control unit (FDC) 293 via an interface (IF) 291 under the control of a file control unit 292 . As a result, the image data is then written into the floppy disk 295 . The file control unit 292 also controls a hard disk control unit (HDC) 296 and a hard disk drive (HDD) 297 so that image data can be written to and read from the hard disk. The HDD drive 297 stores format data and overlay data that are often used. With the reference numeral 298 a line artist is designated net.

Another specific structure of the storage device will be described with reference to FIG. 18. The MEM storage device 255 , to be described, can effect 100% recovery if the compression and stretching rates were short. As shown, compressed data and image data as they are scanned are input to the storage unit 263 at the same time. Whether the two types of image data are each written into a very specific memory area, the compressed data is applied directly to the stretcher 262 and thereby stretched. The processing by the compressor 261 and that by the expander 262 are to take place simultaneously and are to be ended before the input of a full data page into the storage unit 263 . Then only the memory area which is assigned to the compressed data is left, while the memory area which is assigned to the raw data is canceled. When the error detector 266 senses an error signal output from the compressor 261 or stretcher 262 , the data area for the compressed data is immediately canceled and the raw data is used. A memory management unit (MMU) 301 controls the memory unit 263 so that two input data and one output data value can be input and output at the same time. By checking the compressor 261 and the expander 262 on a real-time basis, fast and secure processing can be achieved and the effective use of the storage area can be promoted. Although in the specific configuration storage areas are dynamically allocated using the MM unit 301 , two storage units can also be used which are allocated to the raw data or the compressed data. The device of FIG. 18 is useful for applications of the type which should satisfy both the number of pages to be stored and the printing speed, for example electronic sorting, in which a number of pages are stored and then sent to a printer in real time processing.

Referring to Figs. 19 to 21, a system section will be described. As shown, a control circuit 311 receives and converts image data and control signals from the main body. A storage circuit 312 temporarily saves the converted image data for the following reason. In general, the speed of access to a hard drive is slow and it cannot follow the reading speed of a scanner. A temporary buffer memory is necessary to eliminate this difficulty. A hard disk drive 297 writes the converted image data and document data to a hard disk. A floppy disk 294 is used to temporarily store image and document data and can be transported to another location. An optical disk drive 313 can be used to carry a large amount of image and document data to a remote location or to permanently store such data. A central unit 314 controls the entire system. Circuit 315 builds a network and, in the particular configuration, has a line integrating function, ie, a function referred to as a hub in a star type LAN architecture. LAN control units 316 each control a corresponding station or terminal 317 (on hub 315 ). The star type LAN architecture can be replaced with a bus type LAN arrangement if necessary.

A star type LAN architecture has a simple configuration, at which uses a twisted pair of wires and has an over transmission rate, which is 1 megabit per second low. However this type of LAN architecture on a large scale in personal computers used because they can use existing subscriber lines. Although a bus type LAN arrangement has a high transmission rate of 10 Megabits per second, it is expensive because it is a fiber optic or one similar exclusive wiring and distributors required.

As shown in FIG. 20, the control circuit 311 has a digitizing unit 321 and a compressor / compressor 322 . The digitizing unit 321 digitizes the 8-bit signals or image data DATA0 to DATA7 using a suitable threshold value. The compressor 322 removes black parts and other unnecessary parts represented by the input data, thereby reducing the data size. When a single A4 size black and white document is read at a rate of 400 dpi (dots per inch), 16 megabytes of data are dispensed. Such data is digitized and reduced to a tenth, with the result that the amount of data is reduced to 200 kilobytes. This successfully saves storage capacity and increases fast data transfer.

Although image and document data are processed in the embodiment, it is free to choose the capacity of a hard disk. As shown in Fig. 21, a hard disk is divided into an electronic circulation (image data), a general mailbox (document data) and a personal document box (document data). The electronic circuit stores image data output from the scanner, then digitizes it and compresses it by the control circuit 311 . The general mailbox allows documents that have been entered by any station 9 to be circulated among users. The difference between electronic circulation and the general mailbox is that the former handles sheets, while the latter handles code data. In the future, all data will be treated as a code and immediately transferred from one station to another. However, in the transition stage, it is expected that image and code data exist at the same time. The personal document box plays the role of a storage location for storing personal documents. The difference between the general mailbox and the personal mailbox is that the former is relatively freely accessible with regard to data, while the latter only allows data access to the person himself.

If the electronic circulation should take up 1000 pages, needed he 200 megabytes (see digitizing and compression). If the ge nerelle Mailbox can accommodate 5000 pages and the number of time If the size of a page is A4 1500, then 3 kilobytes for each page (2 bytes per character) and therefore needs 15 megabytes. If the personal mailbox should have a capacity of 1000 pages 3 megabytes are required. If the number of users is twenty, 60 megabytes are necessary. Consequently, the festival needs a total of 275 megabytes. The facility is basically that same as a product called a file server; the first re differs from the latter in the following points:

• 1. The file server has a hard drive whose capacity is 1 gigabytes is up to 100 gigabytes, while the embodiment has only one capacity of 300 megabytes;
• (2) In order to save hard disk capacity, the exec form automatically canceled data that has been read, or whose dates have expired.
• (3) The file server mainly handles code data while at  In the embodiment, image data are mainly dealt with.

The floppy disk drive 294 and the optical disk drive 313 , both of which are external memories, are used to store image and document data or to carry them to another location. They can also be used to transport a large amount of image and document data to a remote location or to permanently save data.

An alternative embodiment of the invention will now be described with reference to FIGS. 22 to 28 and with reference to FIGS. 1 to 3, 7 to 12, 14 to 16, 20 and 21. As shown in FIG. 16, the MEM device 255 has the PP unit 281 , which is arranged outside the storage unit 263 . The PP unit 281 is a unit that can perform logical operations (e.g., AND, OR, EOR, and NOT operations) on the image data. Specifically, the PP unit 281 can perform logical operations on the memory output and input data and can output the resulting data to the printer / printer or can write the resulting data back to the memory unit 263 . The printer or a destination of the data and the storage unit 263 are switched by the MUX6 282 and MUX7 283 . This type of function is commonly used to combine images, e.g. B. to store overlay data in the storage unit 263 and then lay it over scanner data.

As shown in Fig. 22, 24 and 25 sends the gate-on order of 216 corresponding to the selection signal from the main CPU 202, image data (DATA0 to DATA7) and various synchronization signals in one of three directions.

(1) Scanner control circuit → image control circuit 209

Image signals in the form of 8-bit data (or, if necessary, 4-bit data or 1-bit data), which are transmitted serially from the scanner, are output to the image control circuit 209 in synchronism with a synchronization signal PMSYMC from the laser beam scanner unit 208 .

(2) Scanner control circuit 213 → system section 401

Image signals in the form of 8-bit data (or 4-bit data or 1-bit data if necessary) that have been serially transmitted from the scanner are supplied to a control circuit in the system section 401 .

(3) System section 401 → image control circuit 209

Image data stored in the system section 401 is serially transmitted in the form of 8 bit data to the image control circuit 209 in synchronism with the synchronization signal PMSYMC from the laser beam scanner unit 208 .

A memory block shown in Fig. 26 corresponds to the memory block of Fig. 14 except that it has a CPU 314 , a program ROM 331 , a dictionary ROM 332 , a working RAM 333 , a memory 334 and a memory Interface (I / F) 335 to perform the OCR and OMR functions. Reference numerals 336 and 337 denote a program IC card and a dictionary IC card, respectively.

In the circuit of FIG. 8, the digitized data is written into the memory block 272 of FIG. 14 in the type 1 format shown in FIG. 15. In particular, digitized data is written into the memory 334 shown in FIG. 26. According to software stored in the program ROM 331 , the CPU 314 determines whether a mark is present in the data or not and extracts the feature of the image data of a certain area, compares it with character patterns that are in the Dictionary ROM 332 are stored and converted into a character code. A number of areas can be set for OCR and are then commanded by the system side via a command interface (I / F) 330 . The working RAM 333 is used to temporarily store commands from the system side, to save the intermediate result from OCR and to save the result from OMR. In general, the OCR function is used to search for characters in the particular area that has been displayed by the system, to convert them to character codes, and then to return them to the system.

The OMR function searches the memory area to sense the content of a bar code BC, as shown in Fig. 27, for example, and to feel the coordinates of the bar code BC. For example, the system that CPU 314 searches for a bar code BC through the OMR function determines based on the output code where and how many data write areas are available, and then determines the OCR function to take which character codes have been generated by decoding characters which have been written in the very specific area. In another example, the system displays relative coordinates, using the position of the coordinates of a bar code BC shown in FIG. 28 as an origin, to thereby accommodate character codes. In Fig. 28, the system displays four write areas 401 based on a code contained in the bar code BC and representing the number of areas.

To perform an OCR function in foreign languages, IC Maps and similar media each save a dictionary and to be replaced by others.

The relationship between the OCR and OMR functional device shown in FIG. 23 and the system section 401 is shown in FIG. 22. Image data which have been read by means of the CCD image sensor 221 are written once in the memory unit 263 of FIG. 14 via the IPP and IP units 255 . The memory block 272 shown in Fig. 26 checks the stored image data to find character images, and then converts them to character codes (OCR function). Furthermore, the memory block 272 searches for a very specific image pattern, for example a bar code marking shown in FIG. 27, and then outputs the position of the marking and a code which represents it (OMR function).

A system section 401 commands the ADF unit to feed a document and commands the scanner to scan it via the command interface (I / F) 330 ( FIG. 23) and the main control circuit 140 ( FIG. 22). At the same time, the system section 401 commands OCR with respect to the data area of the memory block 272 determined by the command I / F 330 . Memory block 262 searches for the bar code mark using the OMR function, reads the code and interprets a location for OCR and the meaning of character data according to the OCR format indicated by the code. The OCR format is, for example, provided with the user name, circulation date, keyword, title and whether an automatic allocation should be effected or not.

• (1) The user name shows the address of saved image data and gives permission to report and circulate. The username a user group or, if necessary, a terminal or display a terminal yourself.
• (2) The circulation date shows a period for which the stored image data should be obtained. The circulation date is compared to a time clock contained in the system and used to effect an automatic deletion and around one Inform system operator of permission to delete.
• (3) The keyword is used to create an alignment and a Circulation to a user who previously had the key word has been related.
• (4) If the OCR function is not available, the title is displayed using the image data itself executed as an image title. In a terminal the title is used to display and search for a title, a li from stored image documents to an output device admit and allow the system operator to ver image documents prevail.
• (5) With the help of automatic distribution, it is possible to document images to distribute elements, but not to circulate them by Markie stakes can be added. If the system determines that a ter minimal access, the system automatically loads an image documentary ment to the end station.

Thus, a document circulation device is ge by the invention  create which has various unexpected benefits that are listed below.

• (1) The facility has a function to automatically certain data delete and can therefore only have a limited storage capacity Zen.
• (2) The facility has a function of determining whether users ever because they have access to displayed data or not. With this radio tion can be determined whether displayed data to users, which they need to be transferred or not.
• (3) Since the term, representing dates or the date to solve them can be determined, the type of data that will soon become unnecessary become effective, be effectively eliminated. This prevents that unnecessary data is stored and accumulated.
• (4) Data, its duration of presentation or its deletion date has passed are printed out to inform the user of this data lubricate. This prevents data that is not necessary for the user are nimble, be deleted before the user confirms them.
• (5) The facility can designate access for users that is from depends on the type of data. This prevents the flood of data, and here through allows each user to manage only the data that is for are necessary for the user.
• (6) After the data transfer, the device is deleted and saved new data efficiently in one memory.
• (7) Even if a presentation date or a deletion date does not save is certified, is prevented that necessary data for a user be deleted before confirmation by the user. Hereby new data can be effectively written into the memory.
• (8) By adding data to a header that is set up by the device device, it is possible for the user to save data in a ner desired way in adaptation to the user goal (for example assign an occupancy type) and to manage the conditions of use ten.
• (9) The device which has a function to automatically add data Manage documents in turn in one optical disc save memory, the oldest being saved first. Hence  can be used efficiently in a network without to avoid annoying administration.
• (10) Unnecessary data representing a document, its period of circulation has elapsed, can be deleted from the memory in the network become. This also promotes the effective use of a memory.
• (11) If the circulation status of the person intended for one circulation is added, unnecessary data from the network can be more effective be transferred to an optical disc. This will also promote the effective use of a storage.
• (12) Data that are necessary for a user can be ge be protected.
• (13) When the remaining capacity of an optical disk becomes scarce, it becomes a user is informed of this and can effectively replace the disk. As a result, the plate is prevented from overflowing.
• (14) If the residual capacity of an optical disk is too small to accommodate the To save the next data, the received data will be sent out prints so that it is prevented from being lost.
• (15) Even if the residual capacity of an optical disk is too small, to save the next data, old documents, documents te that are circulated only occasionally, and documents that are not important, automatically deleted to accommodate new data gene.
• (16) Data to be deleted is printed out for a last review the user.
• (17) Image data are monitored automatically. In addition, the order accrue based on the content of image data and without evasion complicated handling can be managed.
• (18) Only when documents are stacked in an ADF unit and then the setup is started, an entry by OCR ver to be completed.
• (19) The area to perform OCR and the importance of Data stored there differ from an image document on the other hand, if a certain format is not used. By Using a marker sensing function (OMR) it is possible to use a Format to interpret when a marker is felt and therefore  adapt the OCR function to different document formats.
• (20) Users to whom a document should be transferred, who selected based on the content of the document so that an un economic transfer is avoided.
• (21) A user group to which a document is to be transferred is determined based on the content. Hence it is not necessary dig to select users each time.
• (22) A user group can be set by the facility.
• (23) If keywords such as date and sections, by assigned to personal users, the determination becomes automatic set when the keywords are entered.
• (24) The keywords can be set by the facility.
• (25) After a portion of image data, i.e. H. several lines of the first Page have been received, a transfer request can be made be sent when the rest of the data is necessary. This promotes the efficient use of transmission time.

To Fig. 4
1 set point, pinch-sol. Turn-sol.
2 document setting, alignment, width, discharge sensor
4 transport, discharge motor
5 Lift switch thick / thin switch
6 display
7 control panel
8 AC drive circuit
9 DC power source
10 main motor; Drive circuit
11 Polygonal motor control circuit
12 PWM control circuit
12 a high voltage power source
13 thermal fuse; Fixing heater
14 LD control circuit
15 toner refill, cutting sol., 1st to 3rd recording sol. 1st and 2nd locking sol.
16 Alignment, lifting relay, 1st to 3rd sheet feed circuit
17 1st to 3rd size, manual feed sizes, manual feed door, first pre-alignment, 1st to 3rd Pe, end of toner, 1st to 3rd relevance, 1st to 3rd tray, relay sensor
18 intake fan
19 transport fan
20 fixation, temp., Alignment, 2nd alignment sensor
21 application, exhaust fan
22 total counter, key counter
23 fixing termistor
24 HP sensor
25 stabilizer
26 lamp heater termistor
27 External memory
28 set point, roll, path selector setpoint
29 sheet feed, transport circuit
30 vibrator motor
31 Determining sheet release, storage, PE and vibrator HP
32 Setpoint interrupt, setpoint 2 to 10
33 Inlet, compartment, outlet sensor, control panel generator
34 drive motor
140 main control circuit
141 sheet feed control circuit
142 duplex copy control circuit
143 Sorter control circuit
144 ADF control circuit
213 Scanner control circuit
214 application

To Fig. 5 / Fig. 6
201 CPU (episode)
202 (main) CPU
210 RAM I / O timer
203 size sensor; other sensors; Tip switch
204 imaging unit
205 high-voltage supply unit
206 relay control unit; Sol.control unit; Motor control unit
207 sorter unit
208 laser beam scanner unit
209 image control circuit (masking, trimming, etc.)
211 Calendar IC
212 control panel
213 Scanner control circuit
214 application (fax, printer, etc.)
215 Editor unit
219 address holding unit
220 key card unit
221 analog inputs (photo sensor, fixed point temp. Point, etc.)
230 timer counters

To Fig. 7
213 Scanner control circuit
241 lamp control circuit
242 time control circuit
221 CCD image sensor
222 signal processing circuit
224 shading correction circuit
226 part of storage system

To Fig. 8
231 MTF correction
232 Magnification change
233 γ correction
233 A data depth switching mechanism
236 4 bit circuit
237 digitizing unit
238 tremor circuit

To Fig. 14
271 input data width converter
272 block of memory
275 output data width converter
264 image data
265 tax

To Fig. 19 / Fig. 23
237 hard drive
234 floppy disk drive
311 control circuit
312 memory circuit
313 optical disk drive
315 hub (star type Lan)
330 command I / F
330 a main control circuit
330 b memory block

To Fig. 20
321 digitizing unit
322 compressor

To Fig. 21
1 electronic circulation (image data)
2 General mailbox (document data)
3 Personal document box (document data)

To Fig. 22
1 set point, pinch-sol. Turn-sol.
2 document setting, alignment, width, discharge sensor
4 transport, discharge motor
5 Lift switch thick / thin switch
6 display
7 control panel
8 AC drive circuit
9 DC power source
10 main motor; Drive circuit
11 Polygonal motor control circuit
12 PWM control circuit
12 a high voltage power source
13 thermal fuse; Fixing heater
14 LD control circuit
15 toner refill, cutting sol., 1st to 3rd recording sol. 1st and 2nd locking sol.
16 Alignment, lifting relay, 1st to 3rd sheet feed circuit
17 1st to 3rd size, manual feed sizes, manual feed door, first pre-alignment, 1st to 3rd PE, end of toner, 1st to 3rd relevance, 1st to 3rd tray, relay sensor
18 intake fan
19 transport fan
20 fixation, temp., Alignment, 2nd alignment sensor
21 application, exhaust fan
22 total counter, key counter
23 fixing termistor
24 HP sensor
25 stabilizer
26 lamp heater termistor
27 External memory
28 set point, roll, path selector setpoint
29 sheet feed, transport circuit
30 vibrator motor
31 Determining sheet release, storage, PE and vibrator HP
32 Setpoint interrupt, setpoint 2 to 10
33 Inlet, compartment, outlet sensor, control panel generator
34 drive motor
140 main control circuit
141 sheet feed control circuit
142 duplex copy control circuit
143 Sorter control circuit
144 ADF control circuit
213 Scanner control circuit
403 system section

To Fig. 24 / Fig. 25
201 CPU (episode)
202 (main) CPU
210 RAM I / O timer
203 size sensor; other sensors; Tip switch
204 imaging unit
205 high-voltage supply unit
206 relay control unit; Sol.control unit; Motor control unit
207 sorter unit
208 laser beam scanner unit
209 image control circuit (masking, trimming, etc.)
211 Calendar IC
212 control panel
213 Scanner control circuit
215 Editor unit
219 address holding unit
220 key card unit
221 analog inputs (photo sensor, fixed point temp. Point, etc.)
230 timer counters
401 system section
401 a memory block (OCR + OMR function)

Claims (29)

1. Document circulation facility, with
an image reading device;
a storage device for storing image and document data;
a control device for controlling the storage device; a system construction device for building a network system and
an image output device,
wherein the device automatically deletes certain data automatically from the image and document data stored in the storage device. 2. Device according to claim 1, wherein the device access conditions of terminals / terminals or users in relation to manages the existing image and document data. 3. Device according to claim 1, wherein the device automa table if an appointment to present the picture and the documents data that has been determined by the user has passed or a deletion date has been reached, the said picture and the said Thursday deletes document data. 4. Device according to claim 1, in which even after a be agreed appointment for display or if a deletion date passed Chen, the facility automatically prints out when the user has no access to the image and document data, the Image data and the document data as data for the user are correct, and automatically the image data and the document data erases stored in the storage device.   5. The device of claim 1, wherein the device uses zer determines which access to the displayed image and the displayed showed document data and after all users should have had access to the image and document data, the image and automatically deletes the document data. 6. The device of claim 1, wherein when a predetermined The time period passes without the user being aware of the image data and access the document data, previously accessing the Image or document data has been determined, the facility prints out the image and document data for the user are correct, and automatically the image data and the document data erases stored in the storage device even if a deletion date or an appointment is not determined. 7. The device of claim 1, wherein the device the Be allows users to determine a deletion order and if one Hard disk becomes full, the image information and the document information tion according to the order of deletion, thereby creating a new image save data and document data on the hard disk. 8. Document circulation facility, with
an image reading device;
a storage device for storing image and document data;
a control device for controlling the storage device;
a system setup device for setting up a network system and
an image output device;
wherein the device transmits a part of the image data and the document data which are input into the storage device via the network system to terminal stations / terminals. 9. The device of claim 8, wherein the device is a loading in the case of a transfer to the end points via the  Network system. 10. The device of claim 8, wherein the device is a loading mood group in case of entering the image data and the documentation selects ment data in the storage device. 11. The device of claim 8, wherein the device is determining groups registered. 12. The device according to claim 8, wherein the device has only one loading selects the location whose password is identical to an identifier word that is added to the image and document data. 13. The device of claim 8, wherein the device is a key word in case of saving the image data and the document data enters. 14. The device of claim 8, wherein the device designates all transmits th image data and all designated document data if the terminals / terminals send a request to the facility. 15. Document circulation device, with
an image reading device;
a storage device for storing image and document data;
a control device for controlling the storage device;
a system construction device for building a network system of an image output device, and
an optical disc,
the device selectively copying or moving the image data and document data between a memory in the network and the optical disk. 16. The device of claim 15, wherein the device comprises the image data and the document data on the optical disk based on a  Writes the length of time that has elapsed since the image data and the Do document data has passed into the optical disc. 17. The device of claim 15, wherein the device comprises the image data and the document data into the optical disc based on Da stores historical information associated with the data. 18. The device of claim 15, wherein the device is a letter of the data on the optical disk based on a period of time that since saving the data in the memory on the network Chen and a personal requirement of a certain person son controls. 19. The device of claim 15, wherein the device is a letter on the optical disc based on a date that each data value is assigned, and a personal requirement of a be agreed person controls. 20. The device of claim 15, wherein the device includes data generated by have been designated to the user who writes to the optical disk, after the data has been read by the user. 21. The device of claim 15, wherein the device is a residual Kapa determined the optical disc and based on the remaining the capacity to generate an alarm intended for the user. 22. The device of claim 15, wherein the device is a residual Kapa of the optical disk is determined and based on the remaining capacity interrupts writing on the optical disc and a documentary ment to be written on the optical disk. 23. The device of claim 15, wherein the device is a residual Kapa of the optical disk and based on the remaining capacity quantity, documents stored on the optical disk in one order is deleted.   24. The device of claim 23, wherein the device comprises the documents in case of deletion of the documents. 25. Document circulation device, with
an image reading device;
a storage device for storing image and document data;
a control device for controlling the storage device;
a system construction device for building a network system;
an image output device,
and a terminal unit which is connected to the network system and has a function to display a part of the transmitted image data and the transmitted document data and has a function to request a transfer of all image data and all document data if necessary. 26. The device of claim 25, wherein the device is a key word enters to transfer the image data and documents to select data. 27. Document circulation facility, with
an image reading device;
a storage device for storing image and document data;
a control device for controlling the storage device;
a system construction device for building a network system;
an image input device, and
an OCR device for extracting character data from an output signal of the image reading device, the device transmitting part of the image data and the document data to a terminal / terminal via the network system. 28. Document circulation device, with
an image reading device;
an automatic document feeder;
a storage device for storing image and document data;
a control device for controlling the storage device;
a system construction device for building a network system;
an image output device, and
an OCR device for extracting character data from an output signal of the image reading device, the device transmitting part of the image data and the document data to a terminal / terminal via the network system. 29. Document circulation facility with
an image reading device;
a storage device for storing image and document data;
a control device for controlling the storage device;
a system construction device for building a network system;
an image output device,
an OCR device for extracting character data from an output signal of the image reading device, and
an OMR device for extracting a marker, the device transmitting part of the image data and the document data via the network system to a terminal / terminal.