JPH0614546Y2 - Multicolor copying machine with electric transmission function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a multicolor copying machine having a transmission function, and in particular,
The present invention relates to a multicolor copying apparatus having a transfer function that shortens processing time and improves operability by making copy processing and transfer processing compatible.

[Conventional technology]

As a conventional two-color copying apparatus, for example, JP-A-55-18
There is one shown in No. 3840. In this two-color copying apparatus, one of a platen on which an original is placed or a scanner unit for reading an image is fixed, and the other is moved in the sub-scanning direction to output an image signal and an original reading unit. , 2 ink donor sheets with different recording colors
It has a two-color printing section for performing two-color printing on the recording paper by using the combination.

Such an apparatus requires a small amount of electric power as compared with a conventional large-sized apparatus that performs toner development, and can be downsized. Further, for example, by using black and red inks, black can be used for normal recording and red can be used for important recording portions.

[Problems to be solved by the invention]

However, in the conventional two-color copying apparatus, even if the electric transmission function is added to the copying function, both functions share the original reading unit or the printing unit, so that the copying operation cannot be performed during the electric transmission operation, for example. There is an inconvenience.

[Means for solving problems]

In view of the above problems, the present invention encodes and modulates a multicolor image signal to a line in order to enable simultaneous use of the multicolor copying function and the multicolor transmission function, and outputs the multicolor image signal from the line. The transmission / reception unit that receives, demodulates and decodes, the control unit that controls the copy operation performed by the document reading unit and the printing unit, and the transmission / reception operation performed by the transmission / reception unit, and the control unit temporarily stores the multicolor image signal in the memory. When the copy operation is interrupted while the multi-color image signal is being stored in the memory after being stored in the memory and being read from the memory and stored in the memory, the storage operation in the memory is interrupted and the copy operation is executed. When the operation is completed, it has a transmission function that restarts the storage operation in the memory that was interrupted, and also executes the copying operation at the same time as the transmission operation for reading the multicolor image signal from the memory and transmitting it from the transmission / reception unit. And there is provided a multi-color copying apparatus.

〔Example〕

The multicolor copying machine having the electric transmission function of the present invention will be described in detail below.

FIG. 1 shows an embodiment of the present invention. A two-color reading unit 1 for reading a two-color image from a document, a two-color printing unit 2 for printing the two-color image information read by the reading unit 1, and a two-color printing unit. An encoding / decoding unit 3 for encoding the information read by the reading unit 1 or for decoding the information from the storage unit 4;
An image information storage unit 4 that stores image information encoded and compressed by the decoding unit 3 and image data in the image information storage unit 4 that is modulated and sent to a line, or information that is demodulated from the line and stored. It is composed of a modulator / demodulator / network controller 5 that outputs to the unit 4 and controls the input / output to / from the line, a controller 6 that controls the above circuits, and a control panel 7 that sets various control conditions in addition to mode switching. Has been done.

In the above configuration, when the copy mode is set by operating the operation panel 7, the image information read by the two-color reading unit 1 is printed by the two-color printing unit 2.

On the other hand, when transmitting the read image information to the line, the operation panel 7 specifies the transmission mode. The image information read by the reading unit 1 is stored in the image information storage unit 4 after being subjected to a compression process by encoding in the encoding / decoding unit 3. When reading of all pages is completed, the line is connected and transmission of image information is started. In this process, for example, when the interrupt switch is operated, copying is executed based on this operation. In transmission, since the two-color printing unit 2 is independent of the transmission operation, the normal copying operation can be performed separately.

Hereinafter, the operation of the present invention will be described in detail with reference to the flowchart of FIG.

In FIG. 2 (in transmission mode), when the power is turned on, the control unit 6 self-checks the system,
It is checked whether or not there is an abnormality in the system, and a standby state is set (step 21). In this state, the copy mode or the transmission mode can be arbitrarily selected. When the transmission mode is selected, the transmission mode is immediately set if the device is not transmitting or receiving (steps 21 to 23). The operator sets the transmission original and presses a start button (not shown) to read the original (step 24) and store it in the storage unit 4. All documents are read in the same way. If the interrupt switch is pressed in this process, an interrupt occurs (step 25), and the normal copying apparatus can be executed. In this copying operation, the original document to be copied may be an interrupted transmission original document or, instead, an original document placed on a reading table. After the copying operation is completed, the operator releases the interrupt to return to the writing processing of the transmission document (or, if the copying is not continuously performed for a predetermined time or more, the operator automatically releases the interrupt. May be). All pages are stored (step 27), and the operator's manual or automatic dials the telephone number of the other party to connect the line (step 28). A check is made in step 29 as to whether or not the other party has come out, and in the case of no communication, processing such as resending in steps 30 to 32 is performed.

On the other hand, if it is determined in step 29 that communication is possible, the copying operation and the transmitting operation can be simultaneously performed. In order to allow the copying operation, the route shown by the solid line in the flowchart is followed by the route shown by the broken line during document transmission. When the processing within the broken line is completed, the line is disconnected when transmission of all pages is completed. As described above, it is possible to maximize the compatibility between the copying function and the electric transmission function.

In the above embodiments, the two-color machine is described as an example, but the present invention can be applied to a single-color copying power transmitting apparatus and a multi-color copying power feeding apparatus having three or more colors. In this case, each of the two-color reading unit 1 and the two-color printing unit 2 shown in FIG. 1 may be changed to a single color or a multicolor of three or more colors.

FIG. 3 shows a second embodiment of the present invention, and the same reference numerals are used for the same parts as those in FIG. The multicolor copying apparatus having the electric transmission function includes a color separation circuit 15 for separating the image information from the two-color reading unit 1 into A color and B color, and two color image information from the color separation circuit 15 into two colors. The color conversion circuit 16 is configured to send to the printing unit 2 and send to the two-color printing unit 2 together with the color conversion area information from the area detection circuit 17 when a color conversion process is requested.

FIG. 4 shows a functional block diagram of the color conversion circuit 16. The inverters 161 and 162 that invert and output the A color input, and the switch that selects and outputs one of the A color input, the output of the inverter 161, and the ground line. 163 and a switch 164 for selecting and outputting any one of the output of the inverter 162, the A color input, the B color input, and the ground line, and by switching the switches 163 and 164 as appropriate, Table 1 12 types of conversion modes shown in can be obtained.

In the above configuration, when the color A in the area is converted to the color B, it corresponds to the conversion mode No. 1 in Table 1, the switch 163 is connected to the m terminal by the output of the area detection circuit 17, and the switch 164 is turned on. Connect to the terminal. Outside the area, the switch 163 is connected to the k terminal and the switch 164 is connected to the Q terminal. In the other conversion modes, the switches 163 and 164 are similarly arranged according to Table 1.
To switch. The symbols in the table indicate white / black inversion of the A color data, that is, the state of white characters.

FIG. 5 shows a ninth embodiment of the present invention, in which the color conversion circuit 16 in FIG. 3 is replaced by a switching circuit 18. As shown in FIG. 6, the switching circuit 18 is composed of a switch 181 for switching between the A color input and the ground line, and a switch 182 for switching between the B color input and the ground line.

In the above configuration, when the document mode is supported from the operation number 7, the apparatus enters the document processing mode. In this mode, when the original is being read, for example, when B color is the area designation color, the portion surrounded by B color is processed. The flow of image data is similar to that in the copy mode, but the image data is processed when the image data passes through the switching circuit.

For example, if printing is not performed when the image data has a level of 0, the following processing is performed inside and outside the area.

(I) When printing only in the area The switch 181 is set to the left inside the area and to the right outside the area by the detection signal of the area detection circuit 17. The switch 182 is on the right side.

(Ii) When only the area is not printed The switch 181 is set to the right side inside the area and to the left side outside the area by the detection signal of the area detection circuit 17.

By operating as described above, it becomes possible to process the document in the area.

In FIGS. 3 and 5, one of the two colors may be deleted, or one color may be given, or an operation such as replacement may be performed.

[Effect of device]

As described above, according to the multicolor copying apparatus having the transmission function of the present invention, the multicolor image signal is encoded and modulated and transmitted to the line, and the multicolor image signal is received from the line and demodulated and decoded. And a control unit for controlling a copying operation performed by the document reading unit and the printing unit, and a transmission / reception operation performed by the transmission / reception unit. The control unit temporarily stores the multicolor image signal in the memory, and then the memory If a copy operation is interrupted while the multi-color image signal is being stored in the memory while being read from the transmission / reception section, and is being stored in the memory, the storage operation in the memory is interrupted to execute the copy operation, and interrupted when the copy operation is completed. The copying operation is performed at the same time as the transmission operation of restarting the storage operation in the memory and reading the multicolor image signal from the memory and transmitting it from the transmission / reception unit. The electrical transmission capabilities efficiently can be performed, it is possible to improve the operability and.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a flowchart showing a processing operation according to the embodiment, FIG. 3 is a block diagram showing a second embodiment of the present invention, and FIG. Is a circuit diagram showing details of the color conversion circuit according to the second embodiment,
FIG. 6 is a block diagram showing a third embodiment of the present invention, and FIG. 6 is a circuit diagram showing details of a switching circuit according to the embodiment of FIG. Explanation of code 1 ... 2-color reading unit 2 ... 2-color printing unit 3 ... Encoding / decoding unit 4 ... Image information storage unit 5 ... Modulator / demodulator / network control unit 6 ... Control unit 7 ... Control panel 15: color separation circuit 16: color conversion circuit 17: area detection circuit 18: switching circuit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukomasa Totsuka 2274 Hongo, Ebina City, Kanagawa Fuji Xerox Co., Ltd. Ebina Works (56) Reference JP-A-56-164673 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A copying apparatus comprising a document reading unit for reading a multicolor document and generating a multicolor image signal, and a printing unit for printing an image corresponding to the multicolor image signal. A transmission / reception unit that encodes and modulates and sends out to a line, receives and demodulates and decodes a multicolor image signal from the line, a copy operation performed by the document reading unit and the printing unit, and the transmission / reception unit. A control unit for controlling a transmission / reception operation to be performed, wherein the control unit temporarily stores the multicolor image signal in a memory, then reads out from the memory and causes the transmission / reception unit to transmit the multicolor image signal; If the copy operation is interrupted during storage in the memory, the storage operation in the memory is interrupted to execute the copy operation, and the storage operation in the memory interrupted when the copy operation is completed. Is restarted, further, a multicolor copying machine which has a electrical transmission function, characterized in that to execute simultaneously copying operation transmission operation and is transmitted from the from the memory by reading the multi-color image signal the transceiver.