JPH0221190B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image processing system that processes image information.

Conventionally, various devices for recording, storing, and communicating image information have been developed and put into practical use. Although such a device has been used as a single-function device, it is less likely to be realized as a device that organically combines various functions. In view of the above circumstances, it is an object of the present invention to provide a device that can meet future demands for office automation systems.

That is, the present invention uses a recording means that records an image line by line on a recording material by repeatedly scanning the recording material with a beam modulated according to supplied image data, This system enables high-speed image recording based on captured image data, and enables efficient reception of image data from an external device regardless of the state of the recording means. A bus line for transmitting image data, a receiving means for receiving image data from an external device, a storage means for storing at least one screen worth of image data received by the receiving means, and a computer that modulates the image data according to the supplied image data. a recording means for recording an image line by line on the recording material by repeatedly scanning the recording material with a beam, and generating a line synchronization signal in synchronization with each scan of the beam on the recording material; Transfer means for DMA-transferring the image data stored in the storage means to the recording means line by line via the bus line based on the line synchronization signal generated from the recording means;
and a detection means for detecting the occurrence of an abnormal state in which the image recording operation by the recording means cannot be performed, and regardless of whether or not the abnormal state is detected by the detection means, the storage means When the abnormal state is not detected by the detection means, after the image data received by the reception means has been stored in the storage means, the image data is stored in the storage means. The stored image data is DMA-transferred to the recording means by the transfer means, and when the abnormal state is detected by the detection means, the storage of the image data received by the reception means is performed. Provided is an image processing system in which image data stored in the storage means is DMA-transferred to the recording means by the transfer means after the storage in the storage means is completed and after the abnormal state is released. It is something to do.

FIG. 1 shows an embodiment of a printer device according to the present invention. 53 is the main body itself. Reference numeral 45 is copy paper, and in principle there is no need to be particular about the quality of the paper, and although cut paper is stored in the cassette storage section in this drawing, it is also possible to use roll paper and cut it after recording. 44 indicates a developer supply device and a developer. This developer is the basis of the present invention and is called a photoconductive toner. Normally, the surface of the toner particle remains charged due to internal polarization (therefore, it appears to be in the same state as a magnetic toner), and the light imparts to it. The principle is that the polarization of the charges on the surface and the internal charges of different polarity disappears, and the charges disappear from the surface. This principle and application are introduced in JP-A-53-111733 (Ricoh) and other publications.

FIG. 2 shows the principle of applying this toner to generate character patterns. First, when the photocontoner is dispersed all over the copy paper and light is applied thereto only to the positions corresponding to the character patterns, that is, the dark areas, the charge disappears only at the character patterns.
In the next step, a reverse charge is applied to the toner surface of the copy paper, and at the same time, charged toner other than the character pattern is removed by a suction blower. but,
At this time, some of the uncharged toner in the character pattern area is also removed by the suction blower, so by applying a charge of the same polarity as the charged toner from the back side of the copy paper, the charged toner can be separated better, and the uncharged toner can be removed. It is necessary to devise ways to increase the adhesion of the paper to the copy paper.

Returning to Figure 1 again. 19 is based on the above principle,
A laser device that scans text or picture patterns using a raster scan method using a semiconductor laser beam using a video signal given from an external device to photocontours uniformly distributed on copy paper. Reference numeral 46 indicates a cleaner device and a suction blower, which remove the charged toner on the copy paper in order to develop the character pattern created by the laser device 19 by using the charger 47 and the charger 52 together. Reference numeral 48 indicates uncharged toner remaining on the copy paper corresponding only to the character pattern portion, and 51 indicates a pressure fixing device, which fixes the toner on the copy paper with a pressure of about 30 kg/cm. Reference numeral 49 is a tray for discharging the copy paper produced in this manner.

(Other Modifications) Figure 3 shows a simple printer device that uses an external video signal to scan the toner uniformly distributed on the copy paper and simultaneously burns and fixes the toner on the copy paper using the optical energy of a laser beam. ing. Reference numeral 44 indicates a developing device that uses a conventional one-component magnetic toner and houses it. The laser device No. 19 is a CO ₂ laser device that can obtain a high enough output to fix the toner. A cleaner device 46 has a suction blower and a charging device with a polarity opposite to that of the magnetic toner, and this charging device creates a state in which the magnetic toner other than the character pattern already fixed by the laser can be easily separated from the copy paper. , the toner is removed by a suction blower. Therefore, at 48, a fixed visual image is already obtained on the copy paper.

(Application Example) Below, an application of the printer as an information transmission device as a receiver will be described.

FIG. 4 shows an outline of the mechanical configuration. The image information sent from the public corporation line is received by the receiver and temporarily stored in the memory device. The memory device may be a fixed head disk memory or a semiconductor memory. Next, when the appropriate amount of information is stored in the memory device, the information is outputted from the memory device to the laser device in synchronization with the copy paper feeding speed of the printer device, and the copy paper is irradiated with laser light. Here, we will explain why the information received from the public corporation line via the receiver is not input directly to the laser device, but is first inputted via the memory device. As is well known, the maximum information propagation speed of public corporation lines is approximately 3KHz, whereas the linear speed of the copy paper of this printer can exceed 100 mm/sec. If A4 paper is transported horizontally at a linear speed of 100 mm/sec, the writing speed of the laser beam is 1
÷ (100mm/sec) ÷2352bit=4μsec/bit=250KHz
become. The breakdown of this 2352bit is A4 width 294mm x
Number of picture elements per 1 mm = 2352 bits. Therefore, compared to the receiving speed of 3 KHz, the writing speed is 250 KHz, which is a speed ratio of about 83 times, so the procedure is to first store it in the memory device and then write it. In addition, in this application example, as will be described later, in order to transfer image information within the device and control the device, that is, actuate the command, via a common bus line, the actuator command is sent from the CPU to each function in the device. During this time, the image information is saved in the memory device. Therefore, the memory device in this application example has the role of matching the transfer speed of the public corporation line and the speed of the printer device, and as a saving means for sharing the bus line. Furthermore, such a combination of a printer device and a memory device has the effect that it is possible to copy one or more arbitrary sheets by one reception. Furthermore, once received information can be stored for a long period of time if necessary, and any number of copies can be made off-line when the public corporation line is free.

FIG. 5 shows a specific circuit configuration of the device shown in FIG. 4. Control of this device is mostly performed by the judgment and commands of one CPU. During standby, the CPU monitors key inputs from the operator on the operation unit 21 and outputs the input to the display 22 via the operation/display control unit 4, as well as monitors the status within the printer device 3. This is done via the input/output section. If an abnormal condition is detected in the printer device, the
It functions to output to display unit 2 and warn the operator. Furthermore, the calling signal from the public company line (16
Hz) is monitored via the line switching section 6 and the line switching control section 5. If the CPU detects this 16Hz calling signal, it instructs the line switching control section 5 to switch between FAX/TEL, and the line switching control section 5 causes the line switching section 6 to maintain the FAX mode. Then, the CPU transmits a confirmation signal that the signal has been received to the other party via the response signal sending section 11, the modulation circuit 10, and the line switching section 6. Next, since a model mode signal is sent from the other party, it is detected through the line switching section 6, the demodulation circuit 8, and the response signal detection section 12. After that, if there is no problem with phase matching, a reception ready confirmation signal is sent to the response signal detection section 11, modulation circuit 10, and line switching section 6 as described above.
Send it back via this route. Thereafter, the input image information is stored in 18 memory devices via the demodulation circuit 8, modem control section 7, and DMA control section 15. After that, the response signal detection unit 12 receives the message end signal.
When detected, a message confirmation signal is sent back to the other party via the route of response signal detection section 11, modulation circuit 10, and line switching section 6. At this point, the CPU starts a timer 17, and if the response signal detection section 12 does not detect a model mode signal from the other party within a certain period of time, the CPU instructs the line switching control section 5 to cut off the line. Next, the CPU starts up the printer device,
When the copy paper is conveyed and it is detected that the leading edge of the copy paper coincides with the optical axis of the laser, the laser is driven, and when the laser beam horizontal synchronization signal is detected, the CPU releases the bus and switches 15 and 13.
Hand over to DMA control unit. Then, image information for one line in the memory device 18 is transferred from the memory device 18.
The output is directly sequentially from the memory device to the laser through the route of the DMA control units 15 and 13 and the laser device 19. When the output of one line of information is completed, it waits for the laser beam horizontal synchronization signal to be input again, and after detection, the same operation as above is performed again. Printout is completed in this way.

To summarize the above, when the response signal sending section 11 and the response signal detecting section 12 receive image information,
It is also a response control unit for mutually confirming with the other party when reception is complete, and corresponds to a pre-processing and post-processing unit. The modem control units 7 and 9 control the modulation and demodulation of image information, and the line switching control unit 5 controls the modulation and demodulation of image information.
This is where FAX/TEL line switching and maintenance control is performed. Furthermore, a copying and information transmission device will be described as another application example.

FIG. 6 shows an outline of the mechanical configuration.

When using it as an offline copier, 3.
Reference numeral 9 denotes a document table, and 40 an optical system consisting of a lamp, a reflective shade, a plane mirror, a lens, a photodiode array, and a driving function. The image pattern irradiated by the lamp is imaged onto a photodiode array 41 via a mirror and a lens. Therefore, by scanning the original on the original platen 39 with the optical system 40, image patterns are successively formed on the photodiode array 41. This image pattern is photoelectrically converted by a photodiode and output as a serial signal, so when this signal is directly input as a video signal to the laser 19 in synchronization with the movement of the copy paper, the scanning pattern by the optical system 40 is Formed on copy paper.

In the transmission mode, the scanning speed by the optical system 40 and the conveying speed of the copy paper are constant because the copying machine also functions as a copying machine. Therefore, since this speed is 100 mm/sec as in the above application example, the serial signal is significantly faster than the transmission speed of the public corporation line, so it is stored in 18 memory devices and then transmitted via 42 transmitters. Transmit sequentially.

When in reception mode, it is similar to the application example of an information transmission device as a receiver, and image information from a public corporation line is stored in 18 memory devices via 43 receivers, and then output to 19 lasers. .

Furthermore, since the medium for transmitting image information and sending operating instructions for each part is common during transmission and reception, memory devices are also used to store and save image signals converted into electrical signals in memory devices. . Furthermore, since the reception does not have to be performed simultaneously with the photoelectric conversion of the information image, it has the function of receiving and storing image information in a single function, and by using a multi-section memory device, it is possible to store several pages of information. It also has a function to memorize and retrieve and print out when necessary.

FIG. 7 shows a specific example of the circuit configuration of FIG. 6.
Control of this device is mostly performed by the judgment and commands of one CPU.

In standby mode, the CPU is the same as the one after the power is turned on.
detects the status of the reader section (that is, the optical system) and the printer section through the input/output section for controlling the reader section (2) and the input/output section for controlling the printer section (3), and when an abnormality is found, it is notified by the operation (4). /Generates a warning on the display section 22 via the display control section. In addition, commands from the operator are sent to the keys on the operation unit 21 and operated/
It is accepted via the display control unit 4 and the results are operated/
It responds to the display section via the display control section 4. Furthermore, the calling signal (16Hz) from the public corporation line 20 is
The presence or absence is monitored via the line switching unit 5 and the line switching control unit 5. Regarding the priority of mechanical operations, first, abnormal state processing is given top priority. For example, when the reader unit control input/output unit 2 determines that the optical system is not at the home position, priority is given to driving the optical system motor and reverse clutch to return it to its home position; Display section 22
If it is determined that there is no copy paper or toner in part 3 and a message is displayed, priority is given to waiting for the operator to complete the operation of replenishing copy paper and toner. During this time, copy commands or transmission commands from the operator's operation keys will not be accepted, and the CPU will instruct the line switching control unit 5 to switch to the line switching unit 6 or the TEL side, and will prohibit reception of reception mode. do. Next, the modes include copy operation, retention copy operation, transmission mode, reception mode, etc., but if any one of these modes is accepted, the other modes will not be accepted until the previously accepted mode is completed.

As another application example, if a paper jam or copy paper runs out inside the printer that occurs while receiving and printing the image information described below, the operation of the printer is stopped instead of completely prohibiting reception. The image information that is being received continues in that state and is input into the memory device. In other words, the CPU/operation in response to the paper jam or out of copy paper is as follows:
Since the display unit 22 only displays the information and stops the printer, a flip-flop is provided in the paper jam or copy paper out display function of the operation/display control unit 4 and the printer stop function 3, so that the CPU commands can be stopped. only generates one pulse, therefore, the time the shared bus line is used is only for that pulse, and there is no problem with the image information being received. Therefore, the image information being received is sent to the printer device 1.
The information is stored in the memory device regardless of the operation in step 9, and can be printed out by outputting it again from the memory device after the abnormal state of the printer device is resolved.

When using as an offline copier
When the CPU receives a copy command from the operator via the operation/display control section 4, the CPU controls the motor, paper feed, HVT to the input/output section 3 for controlling the printer section, and the input/output section 2 for controlling the reader section. Then, when the leading edge of the copy paper passes the registration sensor, a command is sent to the reader control input/output section 2 to turn on the forward clutch and halogen lamp, and the optical system is activated. When it starts moving forward and passes the sensor at the tip of the document platen, the photodiode control signal is turned on and the laser is turned on for 3. When the laser beam horizontal synchronization signal is detected from the printer control input/output unit 3, the CPU releases the bus and controls the control by 13.
14 DMA control unit. After that, the serial image signal generated from the photodiode 41 is
A signal is passed directly from the DMA control section 4 to the DMA control section 13, and this becomes a video signal to the laser, which writes an image pattern onto the copy paper.

In the transmission mode, when the operator presses the transmission mode selection button from the operation keys, the CPU sends the line switching unit 6 to the line switching control unit 5 by FAX/TEL.
Instruct the user to change the setting to TEL. The operator then dials the other party. Thereafter, a confirmation signal from the called station is transferred from the public company line 20 to the line switching unit 6, the demodulation circuit 8, and the response signal detection unit 12.
When detected, the operation/display control section 4 displays a message on the display section indicating that the transmission command key may be pressed. The operator sees this and presses the transmission command button. After that, when the CPU receives a transmission command from the operator via the operation keys in the operation/display control section 4, it instructs the reader section control input/output section 2 to operate the optical system motor, halogen lamp, and forward clutch. When the document starts moving and detects the document leading edge sensor,
Along with issuing operation commands to the photodiode array.
The CPU releases the bus, hands it over to the DMA controllers 14 and 15, and receives the signal from the photodiode.
Data is sequentially written to the memory device via the DMA control units 14 and 15 in real time. After that, when the reverse position of the optical system is detected, the bus is returned to the CPU side, and the CPU turns off the forward clutch for the reader control input/output section 2, turns on the reverse clutch, returns to the home position, and returns everything to the home position. command to turn off the control. Thereafter, the response signal sending unit 11 transmits the model mode signal and the phase signal to the other party via the route of the modulation circuit 10, the line switching unit 6, and the public corporation line 20, and the other party sends a reception ready signal, and from the public corporation line 20 to the line switching unit. 6. When detected by the demodulation circuit 8 and the response signal detection unit 12, the CPU sequentially transfers the information stored in the memory device from the memory device 18 to the DMA control unit 15, modem control unit 9, modulation circuit 10, and line switching unit. 6. Transmitted via public corporation line 20 route. After the transmission is completed, a message end signal is sent from the response signal sending section 11 through the route of the modulation circuit 10, the line switching section 6, and the public corporation line 20, and a message confirmation signal is sent from the other party via the public corporation line 20 to the line switching section 6 and the demodulation circuit 8. If the response signal detection unit 12 detects the response signal via the operation/display control unit 4, the operator is notified of the completion on the display unit, and at the same time, a timer 17 is activated. After the timeout, a line disconnection command is issued to the line switching control section 5, and all transmission modes are terminated.

Since the reception mode is the same as the application example of the information transmission device as a receiver, the explanation will be omitted.

Retention mode is a method in which information that remains in the memory device 18 when previously received is output later as needed. When the operation/display control unit 4 detects that the operator has pressed the retention key, the motor, paper feed solenoid, HVT, blower, etc. are turned on for the printer unit control input/output unit 3. When the copy paper starts to move and is detected by the registration sensor, the laser is turned on and the resulting laser beam horizontal synchronization signal is detected, the CPU releases the bus and transfers data from the memory device 18 to the DMA controllers 15 and 13. by the route of
Write the contents of the memory device directly to the laser via DMA. These movements therefore form an image pattern on the copy paper.

Furthermore, by having the memory device, information scanned from a document or received by a communication means and input into the memory device can be arbitrarily transmitted during free time of the public corporation line, and further,
Regarding the reception time, data can be received at any time during the idle time of the public corporation line by means of storing the information in the memory device, which is not the same as the printer device. Further, the memory device may have a function of storing a certain number of image information by having several storage locations. In this case, it is also possible to send, receive, or print out several pieces of information at the same time.

Another application example is an application as a printer from an intelligent terminal having a CRT.

The intelligent terminal refers to an automatic search device, a computer, an office computer, a word processor, etc., each of which has a general appearance as shown in FIG. In other words, 33 CRTs and 25 boards communicate with the operator and process information/data. Also, if necessary, information/data can be stored on the 23 disks and retrieved. Further, when satisfactory information/data is displayed on the 33 CRTs, the operator outputs the content to the 19 printers according to the present invention by issuing commands from the keyboard.

FIG. 9 shows a specific example of the circuit configuration. All control is centered around one CPU. CRT3
3 displays 32 characters horizontally and 32 characters vertically, and each character is 5x
It is now displayed as 7 dots.

Regarding CRT control, information to be displayed on the entire screen (32 x 32 characters) is usually stored in 29 RAMs.
It is stored in a static state. The synchronization timing for displaying on the CRT screen is generated by the synchronization signal generation circuit 34. Typically 30 multiplexers select from 34 rather than from the bus. The contents of RAM 29 are sequentially called out by the address signal from 34, and 31
input into the character generator. On the other hand, a character pattern column selection signal is input from the synchronization signal generation circuit 34 to the character generator 31, so that a bit pattern corresponding to each column is output from the character generator 31, and the 32 video signals are outputted from the character generator 31. Input to the generation circuit. Therefore, since the character pattern is composed of 5 x 7 dots, the character data at a certain address in the RAM 29 is called to the character generator 31 seven times, and the output from the character generator 31 is output in 5-bit parallel. It will be. The video signal generation circuit 32 is a circuit that converts this 5-bit parallel signal into a serial signal, and its output is connected to a CRT.
It becomes a video signal to 33.

Next, we will discuss key control. When the CPU 1 detects a key input from the keyboard 25 with the keyboard control unit 26, it inputs the code into the buffer 28, and when it detects that the end key of the character string has been input, it decodes the command,
Process information/data and send the results to buffer 28
The data is written to RAM and displayed using the route from to RAM29. Of course, the codes keyed into the 28 buffers are sequentially entered into the RAM and displayed.

To access files on the floppy disk, use the keyboard 25 to access the disk 23.
If you want to display the file above, select disk 23.
From the floppy disk control section 24, buffer 2
8. Written to RAM via RAM29 route.
Conversely, if you want to file the information on the CRT onto disk 23, you can move it from RAM 29 to buffer 28,
The data is written via the floppy disk control unit 24 and the disk 23 route. Also, since it is written directly from RAM 29 to disk 23, it is expanded on memory 16 and then written to disk 23 or RAM 29.
You can read/write.

Furthermore, when information/data on a CRT is output to a printer device, the scanning speed of a CRT is several hundred Hz, while the writing speed of a printer device is several hundred KHz. Deploy it on the memory device. The method is
Parallel data output from the character generator 31 is sent from the character generator 31 to the DMA control units 27 and 15 to the memory device 1 while timing the parallel data with the horizontal/vertical synchronizing signal of the CRT.
Write using route 8. After the writing is completed, the CPU instructs the printer unit control input/output unit 3 to drive the printer device, and the memory device 18 under DMA control at the timing of registration with the copy paper.
DMA controllers 15, 13, and the laser device 19. Since the following operation is similar to the retention operation in the application example described above, the explanation will be omitted.

Furthermore, as another application example, an information retrieval device shown in FIG. 10 will be described. This is an information retrieval device that searches offline and prints out the contents of magnetic cards and disks that store files generated by office computers, computer word processors, etc. FIG. 10 shows that when the floppy disk operator inputs the file name and its attributes to be printed from the keyboard 21, the CPU searches the floppy disk control unit 24 for a file name that roughly corresponds to the file name, and if any, its contents. from the disk 23 to the floppy disk control section 24
After expanding the program + data onto the memory on the memory 16, the data on the memory is expanded through the 35 character generators.
A character is written into the memory device through a route between the DMA control unit 15 and the memory device 18 as a signal in which characters are broken down into bit patterns. After writing, the CPU 1 issues a copy operation command to the printing unit control input/output unit 3, and when the copy paper and the resist are removed, the laser is turned on, and the resulting laser beam horizontal synchronization signal is detected. When the CPU releases the bus, the DMA controllers 15 and 1 sequentially start from the memory device.
3. The contents of the memory device 18 are output to the laser device 19 under DMA control through the route of the laser device 19. The following is the same as the retention in the application example, so the explanation will be omitted.

Furthermore, as another application example, a device called a graphics processor will be described.

Information can be broadly classified into two types. One type of information is images, which are information that humans can intuitively understand, and the other type of information is data, which is information that computers can understand. On the other hand, there are communication and processing as means for these. There is a facsimile as a device in the image communication field, a word processor as a device in the data communication field, and a computer as a device in the data processing field. Here, we propose a device that performs image processing under the name of a graphics processor. This device is a device that processes images as they are.
This is a device that performs composition, trimming, enlargement, reduction, position conversion, etc. Furthermore, as will become clear in the following description, the above processing is accomplished by computer means, and is equipped with a keyboard and CRT display for interaction with the operator, information storage, and file storage. Since the configuration can be developed to be equipped with a floppy disk or the like for general use, it is possible to provide a new information processing device that performs all image communication and processing and data communication and processing.

FIG. 12 shows a device according to the invention.

Reference numeral 38 denotes a reader section which is a device for setting an original and reading the image thereof. Reference numeral 37 denotes a controller section that performs all controls of this device. CRT33 is a device that displays images read by reader unit 38.
It is a CRT. Reference numeral 25 denotes a keyboard section through which an operator, while looking at the display 33, issues instructions for image processing such as image superimposition, composition, trimming, enlargement, reduction, position conversion, and copying. 19 is 33 CRT
This is a printer device according to the present invention that prints out the contents of. The document size handled by this device is A4 only, and one pixel is divided into 8 bits/mm. Therefore, 210mm/8bit = A4 horizontal direction
1680bits, 294mm x 8 = 2352bits as A4 vertical direction
The CRT screen is also 1680 dots horizontally,
It is broken down into 2352 dots vertically. Also, the VIDEO-RAM used to store this information has a size of 1680 x 2352 bits. FIG. 13 shows a specific circuit configuration according to the present invention.

First, set the read command from the keyboard to 1.
When the CPU receives the signal, it commands the reader section 2 to start the optical motor, halogen lamp, and forward clutch. Next, the optical system starts moving, and when the document leading edge sensor is detected, it starts the photodiode array, and at the same time, the CPU releases the bus so that signals can be exchanged between the DMA control units 14 and 15 by DMA control. do. Image signals received by the photodiode array are input into 18 memory devices through an image amplifier. The scanning speed of the optical system at this time is the same as in the previous examples. Therefore, the transfer speed can be considered to be very high. Next, when the A4 size image has been read and the optical system has reached the A4 inversion position, the halogen lamp and forward clutch are turned off, and the reverse clutch is started. When the optical system reaches the home position again, it instructs the reader control input/output section 2 to stop all devices.

Next, the CPU 29 displays the image signal read into the memory device 18 on the CRT 33.
It is necessary to expand the video to VIDEO-RAM at high speed.
For this purpose, the CPU releases the bus again and prepares the DMA control units 15 and 36 for information to be transferred by DMA. This is executed continuously by a command key using the key 25 or a program command from the program memory 16. This causes the 1 on memory device 18 to
The information for the page, that is, 1680 x 2352 bits, is stored in the DMA control units 15 and 36, the buffer 28, and the VIDEO-RAM.
Expand to VIDEO-RAM on 29 using the root of 29. Of course, at this time, the address multiplexer 30 selects the address of the DMA control unit 36 and specifies the RAM 29. First, the information written to RAM 29 is independent of CPU operation.
The contents of the RAM 29 are sequentially transferred to the 32 video signal generation circuits in synchronization with the timing signal generated by the synchronous signal generation circuit of the
Displayed on CRT as VIDEO signal. Of course,
At this time, the address multiplexer 30 selects the address from the synchronization signal generation circuit 34, and
Functions to specify the contents of VIDEO-RAM.
Here, the memory device, which is 18 buffer memories, has one or more pages (1680 x 2352 x n pages).
shall have the following.

This device has 16 memories prepared with command groups for performing image processing such as image superimposition, composition, trimming, enlargement, reduction, position conversion, and copying. For example, consider a case where character/numeric information typed by an operator is inserted into a part of an image pattern. A key code entered from the keyboard 25 is stored in the program + data memory 16 via a route from the keyboard 25 to the keyboard control unit 26 and the program + data memory 16,
The CPU decodes the image processing command from that character string, and if it is a composite trimming command, it determines that the string of characters/numbers that follows is the information that should be inserted, calls those character codes sequentially, and inserts the 35 characters. Pass it through a generator and convert it into a bit pattern. Next, the address to be accessed is designated to the memory device 18, and the signal converted into the bit pattern is transferred thereto, thereby completing the command operation. Then, in order to have the operator confirm it on the CRT immediately after completion,
The contents of the memory device 18 are transferred to the RAM 29 in the same manner as described above.

That is, the image information read from the reader device is photoelectrically converted and then stored in a predetermined first section of the 18 memory devices. After that, CRT3
It is sent to RAM 29 for display on 3. In RAM, 16 programs are stored in advance for control signals used for image processing + preset image processing information such as compositing and trimming from data memory, i.e. commands for trimming position, size, and compositing position In accordance with the information, image processing is performed by key input commands or automatically by the CPU, stored in a predetermined storage section such as compositing in the memory 18, and displayed on the CRT 33. Thereafter, information for compositing with the processed image is input from the keyboard 25, and a compositing command is also input from the keyboard 25. The composite information from the keyboard is stored in a third section of the memory device different from the above, and is further transmitted to the CRT via a character generator 35 from the memory device.
This information is converted into image information for display on 18 and stored in memory 18 again, and this information is sent to RAM 29 in the same way as the information read from the reader.
Similar to the processing of the image information, the images are synthesized at a predetermined location by a control signal output from the program+data memory 16. This combined information is then displayed on the CRT, and the trimming and combination of the read information and the keyboard input information is confirmed. Therefore, the memory device 18 stores the same image information memory as the image displayed on the CRT after trimming and composition.

Combining, adding, and modifying image information from a floppy disk and information from a keyboard as a communication device and storage device, as shown in the following application examples.
Processing such as trimming is performed using the multi-section memory 18 in the same way as in the case of reader reading, and image processing is performed by performing composition and the like in accordance with control signals set in advance in the program+data memory 16 in the RAM.

The synthesis location can be changed by changing semi-fixed data relating to the location in the program memory 16, or by using the key 25 to specify the approximate location.

Next, when the CPU determines that the operator has input a copy command from the keyboard 25,
The CPU is for the input/output section for controlling the printer section 3.
Issues a start command to the motor, paper feed solenoid, HVT, blower, etc. When the copy paper is transported and the registration sensor is detected, the CPU issues a laser start command and detects the resulting laser beam horizontal synchronization signal, releasing the bus.
Consideration is given so that information can be directly transferred between the DMA control units 15 and 13 by DMA control. As a result, one page's worth of image information in the memory device 18 is outputted to the printer device at high speed in synchronization with the process speed of the copy paper. The copying operation is completed by the above operations. Other application examples are shown below.

FIG. 14 shows a device in which an information transmission device is built into the graphics processor of the application example shown in FIG. 12, making it possible to process and communicate images.

FIG. 15 shows a device in which the graphic processor of FIG. 12 is incorporated with n disk-type memory devices to enable image processing, storage, and retrieval.

Figure 16 shows a graphics processor that has an information transmission device and n disk-type memory devices built into the applied example of the graphics processor in Figure 12, and it processes, communicates, generates, and stores images and data. It has the effect of handling all functions such as , search, etc. To copy an image, the reader section 38 passes through the controller section 37 to the printer section 19, or the memory device 23 passes through the controller section 37 to the printer section 19, or from the public corporation circuit 20 to the controller section 37. This is done on each route to the printer section. Image processing is done by the reader section 38
From each route from the public corporation line 20 to the CRT 33 via the controller unit 37, or from the memory device 23 to the CRT 33 via the controller unit 37.
After being developed on the CRT, corrections, additions, trimming, composition, etc. are performed according to commands from the keyboard 25, and the CRT 33 is connected to the public corporation line 20 via the controller section 37, or from the CRT 33 to the memory device 23 via the controller section 37. , or
The images are printed out via each route from the CRT 33 to the printer section 19 via the controller section 37. The image is generated by the operator using keyboard 2.
5 and the CRT 33 and generated on the CRT 33, the data is generated on the CRT 33 via the public corporation line 20 from the CRT 33 via the controller section 37, or from the CRT 33 via the controller section 37 to the printer section 19, or
It is printed out from each route of the memory device 23 from the CRT 33 via the controller unit 37. Also, viewed from another angle, what is output to the memory device 23 is storage, and what is output to or input from the public company line 20 is communication.
The route from the memory device 23 to the keyboard 25 and CRT 33 via the controller unit 37 is the search.

FIG. 17 shows a specific example of the circuit configuration of this processor. This figure shows the circuit shown in FIG. 13 with the communication circuit shown in FIG. 7 added, so the explanation thereof will be omitted.

Figure 18 shows a graphics processor consisting of n readers and one printer.
This is effective when users send image information from different locations.

Figure 19 shows a graphics processor consisting of n readers, n disks, and one printer. This has the effect of allowing work such as saving images on disks to be performed at each installation location.

What is shown in Fig. 20 is a graphics processor consisting of n readers, one printer, and a communication device. In addition to the effects of the application example shown in Fig. 18, image information can be sent from different locations to arbitrary remote locations. It has the effect of sending and receiving.

Figure 21 shows a graphics processor consisting of n readers, n disks, one printer, and a communication device. When placed as a pair in one place, it has the effect of transmitting and receiving image information from the disk where it was stored to a remote location.

What is shown in FIG. 22 is a graphics processor consisting of one reader and n printers, which has the effect of outputting image information from one location to multiple locations.

The system shown in FIG. 23 consists of one reader, n printers, and communication devices, and in addition to the effects of the application example shown in FIG. 22, it has the advantage of being able to send and receive image information to remote locations.

Figure 24 shows a graphics processor consisting of one reader, n printers, and n disks, which has the effect of printing out the contents of both the reader and disks to a printer located elsewhere. have

What is shown in FIG. 25 is a processor that has one reader, n printers, n disks, and a communication device, and in addition to the effects of the application example in FIG.
It has the effect of being able to communicate with any remote location.

Figure 26 shows a processor that has n readers and n printers.If the readers and printers are paired and placed in multiple locations, image processing can be freely accessed from any location to any other location. have an effect.

Figure 27 shows a processor that has n disks, n readers, and n printers.If the reader, printer, and disk are installed as a pair in multiple locations, the reader and disk can also be placed in other locations. It has the effect of being able to be printed out to other locations, and output can also be obtained from other locations.

Figure 28 shows a processor that has n readers, n printers, and a communication device.When the reader and printer are used as a pair, images can be accessed from one location to another, including the communication means. It has the effect that everything is possible.

What is shown in Fig. 29 is a compilation of the above-mentioned processors, which has n readers, n printers, n disks, and a transmission device. , you can print out information stored in any location,
It also has the effect of being able to send and receive data to remote locations.

FIG. 30 shows a specific example of the circuit configuration of this graphics processor. Since this figure only shows the addition of a floppy disk to FIG. 7, its explanation will be omitted.

As explained above, according to the present invention, firstly, the present invention includes a storage means for storing at least one screen of image data received from an external device, and the received image data is stored in the storage means. The recording of the recording means is performed by DMA-transferring the image data to the recording means line by line via the bus line based on a line synchronization signal generated from the recording means in synchronization with each scan of the beam on the recording material. Image data received regardless of the operating speed can be supplied to the recording means in accordance with the recording operation of the recording means. The image is recorded line by line.
Image recording based on image data received from an external device can be performed at high speed by using a recording means that cannot perform intermittent recording operations.

Further, the storage means is provided with a detection means for detecting the occurrence of an abnormal state in which the image recording operation by the recording means cannot be performed, and the storage means stores the received image data regardless of whether or not the abnormal state is detected by the detection means. and if an abnormal state is detected by the detection means, the received image data is stored in the storage means after the storage of the received image data in the storage means is completed and after the abnormal state is released. By DMA-transferring image data to the recording means, image data can be received from an external device even if an abnormal condition occurs that makes it impossible for the recording means to perform an image recording operation. Image data can be efficiently received from an external device regardless of the state of the means, and image recording based on the received image data can be executed at high speed after the abnormal state is removed.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIGS. 1 and 3 are side views schematically showing the internal mechanism of a printer device according to the invention, FIG. 2 is a principle diagram of character pattern formation, and FIG. Figures 6 and 6 are side views schematically showing the internal mechanism of an apparatus to which a printer is applied, Figures 8, 10, 12, and 14.
Figures, Figure 15, Figure 16, Figure 18, Figure 19,
Figure 20, Figure 21, Figure 22, Figure 23, Figure 2
Figure 4, Figure 25, Figure 26, Figure 27, Figure 28
29 are schematic diagrams showing application examples of this invention, FIG. 5, FIG. 7, FIG. 9, FIG. 11, and FIG. 13.
17 and 30 are block diagrams showing the structure of an operation and control device of an applied example of the present invention.
3 is a printer control unit, 18 is a memory device, 4 is an operation unit, 5 to 12 are transmitting/receiving units, 25 is a keyboard,
33 is a CRT, and 23 is a floppy disc.

Claims (1)

[Scope of Claims] 1. A bus line for transmitting image data, a receiving means for receiving image data from an external device, and a storage means for storing at least one screen worth of image data received by the receiving means, Recording an image line by line on the recording material by repeatedly scanning the recording material with a beam modulated according to the supplied image data;
a recording means that generates a line synchronization signal in synchronization with each scan of the beam on the recording material; and image data stored in the storage means,
a transfer unit that performs DMA transfer to the recording unit line by line via the bus line based on the line synchronization signal generated from the recording unit; occurrence of an abnormal state in which the image recording operation by the recording unit cannot be performed; and a detection means for detecting, and regardless of whether or not the abnormal state is detected by the detection means, the storage means stores the image data received by the reception means, and the storage means stores the image data received by the reception means. If the abnormal state is not detected, after the image data received by the receiving means has been stored in the storage means, the image data stored in the storage means is transferred to the storage means by the transfer means. DMA transfer to a recording means, and if the abnormal state is detected by the detecting means, after the storage of the image data received by the receiving means in the storage means is completed, and the abnormal state is canceled; An image processing system characterized in that, after the image data is stored in the storage means, the image data stored in the storage means is DMA-transferred to the recording means by the transfer means.