JP2001016465A - Communication unit and control method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a control method for a communication unit by which abnormal transmission to a destination can be prevented by discriminating whether data of a transmission object include color data when broadcast transmission is instructed, inhibiting execution of the broadcast transmission when the data include the color data and issuing a prescribed warning. SOLUTION: Whether color reading is selected is discriminated (S21). In the case that no selection of color reading is discriminated, black/white read processing is conducted (S22). In the case that selection of the color reading is discriminated, one of processing sets A, B and C is conducted (S27). In the processing A, it is warned to a liquid crystal display panel or the like as a warning means that no transmission processing will be executed. Through this warning, an operator can prevent abnormal transmission to a destination in advance, be prepared for performing broadcast transmission of black/white data again or be prepared for transmission of color data through direct transmission.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a control method and a communication device for a communication device capable of transmitting color data, and more particularly to a control method and a communication device for a communication device having a broadcast transmission function.

[0002]

2. Description of the Related Art With the development of information and communication technology, facsimile apparatuses capable of transmitting not only monochrome data but also color data have been proposed. In order to internationally standardize such a color data transmission system, color data is recommended (JPEG encoding) in the ITU-T recommendation, and a facsimile apparatus capable of transmitting color data is generally used. At present, there is a tendency to support JPEG encoding. On the other hand, in recent facsimile machines,
A variety of auxiliary functions are added to reduce the operation burden on the operator. Among such auxiliary functions, the so-called broadcast transmission function is employed in most facsimile apparatuses that handle black and white data.

The broadcast transmission function is a function of transmitting data read by a facsimile apparatus to a plurality of destinations at once. This saves the operator the trouble of reading data for each destination, and also eliminates transmission omissions. This is a function that is used relatively frequently because it has the advantage of being reduced. Therefore, the operator naturally wants to use such a broadcast transmission function even when transmitting color data.

[0004]

However, a facsimile apparatus capable of transmitting color data is more expensive than a facsimile apparatus which transmits only black and white data.
It is hard to say that it is widely used. In addition, even a facsimile machine capable of transmitting color data has a postcard size by DPCM encoding as a unique mode, and
There is also a facsimile machine that performs 90 dpi transmission and reception. For this reason, if the broadcast transmission function is used when transmitting color data, there is a problem that transmission may not be normally performed to all destinations depending on the specifications of the destination facsimile machine. Accordingly, an object of the present invention is to provide a control method and a communication device for a communication device capable of preventing abnormal transmission of color data to a destination.

[0005]

According to the present invention, a step of determining whether or not data to be transmitted includes color data when a broadcast transmission instruction is given; Prohibiting the execution of the broadcast transmission and issuing a predetermined warning.

According to another aspect of the present invention, a step of storing information relating to a transmission function of each destination in advance, and determining whether data to be transmitted includes color data when a broadcast transmission instruction is given. Is determined, and when color data is included, a step of determining whether or not to execute broadcast transmission based on the information is provided. In this means, in particular, a step of referring to the transmission function of each destination based on the information, and determining whether or not the transmission functions of all destinations have the commonality of the transmission function of color data,
If there is no commonality, a step of prohibiting broadcast transmission and issuing a predetermined warning can also be included. Also, in this means, a step of creating data to be transmitted as both color data and black and white data, and referring to a transmission function of each destination based on the information, and And transmitting the black and white data.

Further, according to another aspect of the present invention, there is provided a communication device capable of broadcast transmission, and when a broadcast transmission instruction is given, it is determined whether or not data to be transmitted includes color data. Control means for prohibiting the execution of broadcast transmission when it is determined that color data is included, and warning means for issuing a predetermined warning when execution of broadcast transmission is prohibited by the control means. A communication device is provided.

Further, according to another aspect of the present invention, there is provided a communication device capable of performing broadcast transmission, wherein storage means for storing information relating to a transmission function of each destination and instructions for broadcast transmission are provided. Control means for determining whether data to be transmitted includes color data, and determining whether to execute broadcast transmission based on the information when determining that the data includes color data. A communication device is provided. In this means, there is provided a warning means for issuing a predetermined warning when the execution of the broadcast transmission is prohibited by the control means, the control means refers to the transmission function of each destination based on the information, It is determined whether or not the transmission function of the destination has the same transmission function of the color data. If it is determined that the transmission function does not have the same function, the execution of the broadcast transmission can be prohibited. Further, in this means, there is provided reading means capable of reading both color data and black and white data, and the control means refers to the transmission function of each destination based on the information, and is read by the reading means. Further, the black and white data can be transmitted to a destination that does not correspond to the color data.

According to another aspect of the present invention, there is provided a storage medium storing a computer program for controlling a communication apparatus, wherein the computer program, when instructed to perform a broadcast transmission, transmits a transmission target. A code for determining whether or not the data includes color data; and a code for issuing a predetermined warning while prohibiting the execution of broadcast transmission when the data includes color data. A recording medium is provided.

According to still another aspect of the present invention, there is provided a storage medium storing a computer program for controlling a communication device, wherein the computer program stores in advance information relating to a transmission function of each destination. And the code of the step of determining whether or not the data to be transmitted includes color data when a broadcast transmission instruction is given, and the broadcast transmission based on the information if the data includes color data. And a code for a step of determining whether or not to execute the program.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, the information relating to the transmission function is information relating to data which can be supported by the communication device of each destination, for example, whether it corresponds to color data, JPEG encoding or DPCM. Information such as whether it corresponds to encoding, whether the size corresponds to B4, A4, or postcard size, and whether the resolution is 400 dpi, 200 dpi, or 90 dpi can be cited.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram of a facsimile apparatus as a communication apparatus according to the present embodiment. 2 is NCU
In order to use the telephone network for data communication, etc., the (network controller) controls the connection of the telephone switching network, switches to the data communication path, and maintains the loop, in order to use the telephone network for data communication. Is performed. The NCU 2 connects the telephone line 2a to the telephone 4 if the signal level sent from the control circuit 20 via the signal line 20a is "0", and if the signal level is "1", The telephone line 2a is connected to the hybrid circuit 6 side. In a normal state, the telephone line 2a is connected to the telephone 4 side.

Reference numeral 6 denotes a hybrid circuit which separates a transmission system signal and a reception system signal, sends a transmission signal from the addition circuit 12 to the telephone line 2a via the NCU 2, and transmits a signal from the other party via the NCU 2 The signal is received and sent to the modem 8 via the signal line 6a. Reference numeral 8 denotes a modulator / demodulator, for example, according to ITU-T Recommendation V.8. 8, V. 21, V.I. 27ter,
V. 29, V.S. 17, V. 34, and performs modulation and demodulation. Each of these transmission modes is specified by a signal transmitted from the control circuit 20 via the signal line 20c. The modulator / demodulator 8 receives a signal transmitted from the control circuit 20 via the signal line 20b and outputs the modulated data to the signal line 8a, or is transmitted from the hybrid circuit 6 via the signal line 6a. It receives the received signal and outputs the demodulated data to signal line 8b.

Reference numeral 10 denotes ANSa for transmitting an ANSam signal.
m circuit, and when a signal of signal level “1” is output from the control circuit 20 to the signal line 20 d, the signal line 10
The signal ANSam is sent to the signal line 10a and the signal of the signal level "0" is output to the signal line 20d.
No signal is output to An adder circuit 12 receives information on the signal line 8a, information on the signal line 10a, and information on the signal line 24a, and outputs a result of the addition to the signal line 12a.

A reading circuit 14 includes various image sensors and the like, reads an image signal as color data or black and white data, and outputs the data to the control circuit 20 via a signal line 14a. The reading circuit 14 is connected to the signal line 2
When the signal “0” is output at 0f, monochrome binary reading is performed. When the signal “1” is output to the signal line 20f, color reading is performed, and the signal “2” is read at the signal line 20f. Is output, both color and black and white reading are performed.

A recording circuit 16 records information output from the control circuit 20 to the signal line 20e sequentially line by line. The recording circuit 16 performs monochrome binary recording when the signal of the signal level “0” is output to the signal line 20g,
When a signal of signal level "1" is output to the signal line 20g, color printing is performed.

Reference numeral 18 denotes a memory circuit which stores raw information, encoded information, received information, or decoded information of data read by the reading circuit 14. An operation unit 22 includes one-touch dial, speed dial, numeric keypad, * and # keys, start key, stop key, set key, registration key corresponding to the transmission function registration circuit 34, and other function keys. The information is output to the control circuit 20 via the signal line 22a.

Reference numeral 24 denotes a calling circuit, which inputs telephone number information output from the control circuit 20 via the signal line 20i when a call command signal is output from the control circuit 20 via the signal line 20h. And the addition circuit 1 via the signal line 24a.
2 to output a DTMF selection signal. Reference numeral 26 denotes a color reading selection button. When this button is pressed, a signal indicating that color reading has been selected is transmitted to the color reading display circuit 28 via the signal line 26a.

Reference numeral 28 denotes a color reading display circuit which does not display when a clear pulse is generated on the signal line 20j, and thereafter "displays" every time a signal is generated on the signal line 26a.
→ Repeat "No display" → "Display". The color reading and displaying circuit 28 controls the signal line 28 when displaying.
The signal of the signal level "1" is output to the signal line a, and the signal of the signal level "0" is output to the signal line 28a when the image is not displayed. A direct transmission selection button 30 generates a pressing pulse on the signal line 30a when the button is pressed. 32 is a direct transmission display circuit,
When a clear pulse occurs at k, no display is given.
Every time a press pulse is generated on the signal line 30a, "display" → "not display" → "display" is repeated. The display circuit 32 outputs a signal of signal level “1” to the signal line 32a when displaying, and outputs a signal of signal level “0” to the signal line 32a when not displaying.

Reference numeral 34 denotes a registration circuit for registering information relating to the transmission function of each destination registered in the one-touch dial provided on the operation unit 22, for example.
For example, one-touch dial switches (not shown; the same applies hereinafter) 01, 02, 04, 06, 09, and 10 are
JPEG 20 in A4 size based on ITU-T recommendation
0 dpi color transmission possible, one-touch dial 03 is A4 size based on ITU-T recommendation, JPEG 4
00 dpi color transmission possible, one-touch dial 0
5,07,08 is postcard size of original mode, DPC
It is registered that 90 dpi color transmission of M is possible. In addition,
In the present embodiment, the recording circuit 16 and the memory circuit 18
Although the registration circuit 34 and the registration circuit 34 are configured independently of each other, each content may be divided and stored in one memory.

Reference numeral 20 denotes a control circuit which controls each of the above components and can execute the broadcast transmission. The control circuit 20 particularly executes the following processes. The control circuit 20 can be constituted by, for example, a CPU and a memory in which a program executed by the CPU is recorded.

FIGS. 2 to 8 show flowcharts of processing in the facsimile apparatus of FIG.
In FIG. 2, step S0 represents the start of all processes.

In step S1, the apparatus is initialized.
For example, a clear pulse is sent from the control circuit 20 to the color reading and displaying circuit 28 via the signal line 20j so that the fact that color reading has been performed is not displayed once. Alternatively, a clear pulse is sent from the control circuit 20 to the direct transmission display circuit 32 via the signal line 20k so that the indication of direct transmission is not displayed. In step S2, a signal of signal level "0" is output from the control circuit 20 to the NCU 2 via the signal line 20a, and the CML is turned off.

In step S3, a signal of signal level "0" is output from the control circuit 20 to the ANSam sending circuit 10 via the signal line 20d, and the ANSam signal is not transmitted.
In step S4, when a command is input from the operation unit 22, the control circuit 20 determines whether data transmission is selected. If send was not selected,
Proceeding to step S5, a process corresponding to the command input from the operation unit 22 is performed, and the process returns to step S4. If the transmission is selected, the process proceeds to step S6, and the control circuit 20 determines whether the selected transmission is a broadcast transmission (when there are a plurality of destinations) or one destination transmission (when there is one destination). In the case of broadcast transmission, the process proceeds to step S8, and a broadcast transmission process described later is executed. In the case of one-address transmission, the process proceeds to step S7, and one-address transmission processing described below is executed. In any case, when the process is completed, the process returns to step S2.

<One Destination Transmission Process> FIG. 3 is a flowchart of the one destination transmission process. Step S
At 11, the control circuit 20 is controlled based on the signal on the signal line 28a.
Determines whether color reading has been selected by the operator. The color reading display circuit 28 sends a signal to the signal line 28a in response to the operation of the color reading selection button 26.

If it is determined that the color reading has not been selected, the process proceeds to S12, where a monochrome reading process is performed. In the black-and-white reading process, first, the control circuit 20 outputs a signal of the signal level “0” to the reading circuit 14 via the signal line 20f, and sets to read the image signal in the black-and-white mode. After the reading circuit 14 reads the image signal, the control circuit 20 MR-codes the image signal, for example, with K = 8, transfers the signal to the memory circuit 18 via the signal lines 14a and 18a, and stores the image signal.
That is, this transmission is a memory transmission.

When the black-and-white reading process is completed, step S1
Proceeding to 3, the control circuit 20 outputs a signal of the signal level "1" to the signal line 20a and turns on the CML. Proceeding to step 14, the control circuit 20 uses the calling circuit 24 to make a call to the designated destination. Thereafter, the process proceeds to step 15, where the control circuit 20 performs a data transmission process of taking out the read monochrome data from the memory circuit 18 and transmitting it to the destination. In the data transmission process, after performing the pre-procedure, resolution conversion and encoding conversion of the black and white data to be transmitted are performed as required, and transmitted, and the post-procedure is performed. Then, the process ends.

Next, if it is determined in step S11 that color reading has been selected, the flow advances to step S16 to set a color mode. Specifically, the control circuit 2
0 outputs a signal of signal level "1" to the reading circuit 14 via the signal line 20f, and sets that image signals are read in the color mode. After the setting, the process proceeds to step S17, where the control circuit 20 outputs a signal of the signal level "1" to the signal line 20a, and turns on the CML. Proceeding to step S18, the control circuit 20 uses the calling circuit 24 to make a call to the designated destination.

Thereafter, the flow advances to step S19 to perform data reading / transmission processing. Specifically, after performing the previous procedure,
The image signal is read and transmitted in consideration of the color data transmission function of the destination facsimile machine, and post-procedures are performed. That is, this transmission is direct transmission. Here, since the color data is directly encoded at the target resolution, re-encoding and re-resolution conversion are not required.

The above is one destination transmission processing. Here, the monochrome data is set to the memory transmission and the color data is set to the direct transmission. However, the monochrome data may be set to the direct transmission and the color data may be set to the memory transmission by the same procedure.

<Broadcast Transmission Processing> FIGS. 4 to 7 show flowcharts of the broadcast transmission processing. In FIG. 4, in step S21, the control circuit 20 determines whether or not the operator has selected color reading based on the signal on the signal line 28a. If it is determined that the color reading has not been selected, the process proceeds to step S22, and a monochrome reading process is performed.

In the monochrome reading process, first, the control circuit 20 sends the signal level "0" to the reading circuit 14 via the signal line 20f.
Is set, and reading of the image signal is performed in the monochrome mode. After the reading circuit 14 reads the image signal,
The control circuit 20 encodes this, transfers it to the memory circuit 18 via the signal lines 14a and 18a, and stores it.

When the black-and-white reading process is completed, step S2
Proceeding to 3, the control circuit 20 outputs a signal of the signal level "1" to the signal line 20a and turns on the CML. Proceeding to step S24, the control circuit 20 uses the calling circuit 24 to call the designated one destination. Proceeding to step S25, the control circuit 20 performs a data transmission process of taking out the read monochrome data from the memory circuit 18 and transmitting it to the destination. In the data transmission process, after performing the pre-procedure, resolution conversion and encoding conversion of the monochrome data to be transmitted are performed, if necessary, and then transmitted, and the post-procedure is performed. In step S26, it is confirmed whether or not transmission has been performed to all destinations. If there is an untransmitted portion, the process returns to step S24, and if all has been transmitted, the process ends.

Next, if it is determined in step S21 that color reading has been selected, the flow advances to step S27 to perform one of the following processes A, B and C. Although the facsimile apparatus of the present embodiment is configured to be able to selectively cope with any of the following processes A to C, it is needless to say that it may be configured to be able to cope with any one of the following processes A to C. Absent.

<< Process A >> FIG. 5 is a flowchart of the process A. In the process A, a warning is issued that the transmission process is not executed on a liquid crystal panel (not shown) or the like as a warning unit. For example, a message such as "broadcast transmission by color reading is not possible" is displayed. Note that this message can be deleted by key input of the operation unit 22. This warning may be, for example, by voice. afterwards,
The processing ends without performing the transmission processing or the like.

As described above, according to the process A,
With such a warning, the operator can prevent abnormal transmission to the destination beforehand, and can also take measures such as retransmitting broadcast data as black and white data again or transmitting color data by direct transmission. . In the process A, if the memory transmission of the color data is selected, the transmission can be unconditionally switched to the direct transmission.

<< Processing B >> FIG. 6 is a flowchart of the processing B. In step S41, the control circuit 20 performs a registration information check. The registration information check is for checking color data that can be received by the destination facsimile apparatus specified by the one-touch dial of the operation unit 22 or the like.

Here, information on the transmission function of the destination facsimile apparatus is registered in the registration circuit 34 for each destination, and the control circuit 20 transmits the information to the registration circuit 34 via the signal line 34a.
Can be read sequentially and checked. Registration of such information in the registration circuit 34 needs to be performed in advance, but may be performed at any time before transmission, and can be performed as shown in the flowchart of FIG. That is, when the information is input from the operation unit 22 in step S61, the control circuit 20 stores the information in the registration circuit 34 in step S62.
The information to be stored in the registration circuit 34 includes, for example, whether it corresponds to color data, JPEG encoding, or DPC.
Whether it corresponds to M encoding, the size corresponds to B4, A4 or postcard size, the resolution is 400 dp
i, 200 dpi or 90 dpi.

Next, at step 42, the control circuit 2
0 is based on the check in step S41, whether all the destination facsimile apparatuses are compatible with the reception of color data of at least one of the methods, that is, whether the transmission functions of all the destinations have commonality It is determined whether or not.

As a result of the determination, if it is determined that there is no method common to all the destinations, the process proceeds to step S43, and as in the case of the process A, a warning is issued that the transmission process is not executed. Then, the process ends without doing anything. If it is determined that there is a method common to all the destinations, the process proceeds to step S44, and the color reading process is performed.

In the color reading process, first, the control circuit 20
Outputs a signal of signal level "1" to the reading circuit 14 via the signal line 20f, and sets that image signals are read in the color mode. The reading by the reading circuit 14 is performed by a method common to all destinations previously determined, and the control circuit 20 temporarily stores the read color data in the memory circuit 18 via the signal lines 20j and 18a.

In step S45, the control circuit 20 outputs a signal of signal level "1" to the signal line 20a,
Turn on. Proceeding to step S46, the control circuit 20 calls the designated destination using the calling circuit 24. Proceeding to step S47, the control circuit 20 performs a data transmission process of taking out the read color data from the memory circuit 18 and transmitting it to the destination. In this case, the resolution conversion and the encoding conversion of the color data are not performed. Proceeding to step S48, it is confirmed whether or not transmission has been made to all destinations. If there is an untransmitted portion, the process returns to step S46, and if all has been transmitted, the process ends.

As described above, according to the processing B,
By checking the information about the transmission function of the destination facsimile machine, if all destinations can receive the predetermined color data, broadcast transmission is performed, reducing the burden on the operator. If there is, a warning will be issued without broadcasting,
Abnormal transmission to the destination can be prevented. In process B, even if there is a method common to all destinations in step S42, if the method is not the method desired by the operator, the process may proceed to error display (step S43).

<< Process C >> FIG. 7 is a flowchart of the process C. In step S51, the control circuit 20 performs a registration information check. Note that the check of the registration information does not necessarily have to be performed first in the process C, and it suffices to perform at least until the data is transmitted. Proceeding to step S52, color / monochrome reading processing is performed. That is, in the process C, both color and monochrome reading are performed.

In the color / monochrome reading process, first, the control circuit 20 outputs a signal of signal level "2" to the reading circuit 14 via the signal line 20f, and reads the image signal in both the color mode and the monochrome mode. Set what to do. Next, the reading circuit 14 reads the image signal as color data, and the control circuit 20 encodes the image signal into, for example, JPEG code and stores it in the memory circuit 18. Further, the reading circuit 14 reads the image signal as black and white data,
= 8 and stored in the memory circuit 18. In this case, color data and black and white data may be read before and after reading, and reading in the color mode may be performed as a standard communication mode. For example, the reading may be performed as A4 size, 200 dpi, JPEG encoding. You may.

In step S53, the control circuit 20 outputs a signal of signal level "1" to the signal line 20a,
Turn on. Proceeding to step S54, the control circuit 20 calls the designated destination using the calling circuit 24. Proceeding to step S55, a data transmission process is performed. The control circuit 20 transmits either the color data or the black and white data stored in the memory circuit 18 to each destination.

In this case, the control circuit 20 determines in step S5
1 based on the registration information check in the memory circuit 18
The color data is transmitted to the destination that can receive the color data stored in the memory circuit 18. Send data.
Proceeding to step S56, it is confirmed whether or not transmission has been performed to all destinations.
If all data has been transmitted, the process ends.

As described above, according to the processing C,
By checking the information on the transmission function of the destination facsimile machine, color data can be transmitted to the destination that can receive color data, and black and white data can be transmitted in other cases. This can reduce the burden on the operator.

According to the present invention, a storage medium storing software program codes for realizing the functions of the above-described embodiments is supplied to a system or an apparatus, and the computer (or CPU or MP) of the system or the apparatus is provided.
It goes without saying that U) can also be achieved by reading and executing the program code stored in the storage medium. In this case, the program code itself read from the storage medium implements the functions of the above-described embodiment, and the storage medium storing the program code constitutes the present invention.

As a storage medium for supplying the program code, for example, a floppy disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD
-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used. When the computer executes the readout program code, not only the functions of the above-described embodiments are realized, but also an OS (operating system) running on the computer based on the instruction of the program code. It goes without saying that a case where some or all of the actual processing is performed and the functions of the above-described embodiments are realized by the processing is also included.

Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, based on the instruction of the program code, It goes without saying that the CPU included in the function expansion board or the function expansion unit performs part or all of the actual processing, and the processing realizes the functions of the above-described embodiments.

[0052]

As described above, the communication device control method and communication device of the present invention have an effect that it is possible to prevent abnormal transmission of color data to a destination in broadcast transmission.

[Brief description of the drawings]

FIG. 1 is a block diagram of a facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart of a process in the facsimile machine of FIG.

FIG. 3 is a flowchart of one destination transmission process.

FIG. 4 is a flowchart of a broadcast transmission process.

FIG. 5 is a flowchart of a process A in the broadcast transmission process.

FIG. 6 is a flowchart of a process B in the broadcast transmission process.

FIG. 7 is a flowchart of a process C in the broadcast transmission process.

FIG. 8 is a flowchart of a process for registering information regarding a transmission function of a destination facsimile machine.

[Explanation of symbols]

 2 NCU 4 Telephone 6 Hybrid circuit 8 Modulator / demodulator 10 ANSam transmission circuit 12 Addition circuit 14 Reading circuit 16 Recording circuit 18 Memory circuit 20 Control circuit 22 Operation unit 24 Calling circuit 26 Color reading selection button 28 Color reading display circuit 30 Direct transmission selection Button 32 Direct transmission display circuit 34 Registration circuit

Claims (12)

[Claims] A step of determining whether or not data to be transmitted includes color data when an instruction for broadcast transmission is provided; and a step of prohibiting execution of broadcast transmission when color data is included. Issuing a predetermined warning. 2. A step of storing information relating to a transmission function of each destination in advance, a step of determining whether or not data to be transmitted includes color data when a broadcast transmission instruction is given, And a step of determining whether or not to execute broadcast transmission based on the information. 3. A step of referring to the transmission function of each destination based on the information and determining whether or not the transmission functions of all destinations have the same color data transmission function. 3. The method according to claim 2, further comprising: prohibiting broadcast transmission and issuing a predetermined warning. 4. A step of creating data to be transmitted as both color data and black-and-white data, and referring to a transmission function of each destination based on the information, and for a destination not corresponding to the color data. 3. The method according to claim 2, further comprising transmitting the black and white data. 5. A communication device capable of broadcast transmission, wherein when an instruction for broadcast transmission is issued, it is determined whether or not data to be transmitted includes color data, and it is determined that the data includes color data. A communication device, comprising: a control unit that prohibits the execution of the broadcast transmission when the execution is performed; and a warning unit that issues a predetermined warning when the execution of the broadcast transmission is prohibited by the control unit. 6. A communication device capable of broadcast transmission, comprising: storage means for storing information on a transmission function of each destination; and when a broadcast transmission instruction is issued, data to be transmitted is color data. And control means for determining whether or not to execute broadcast transmission based on the information when it is determined that color data is included. 7. A warning means for issuing a predetermined warning when the execution of the broadcast transmission is prohibited by the control means, wherein the control means refers to the transmission function of each destination based on the information, and 7. The method according to claim 6, wherein it is determined whether the transmission function of the destination has a common color data transmission function, and if it is determined that there is no common function, execution of the broadcast transmission is prohibited. Communication device. 8. A reading unit which can read both color data and black and white data, wherein the control unit refers to a transmission function of each destination based on the information, and reads the read function by the reading unit. The communication device according to claim 6, wherein the monochrome data is transmitted to a destination that does not support color data. 9. A storage medium storing a computer program for controlling a communication device, wherein the computer program determines whether data to be transmitted includes color data when a broadcast transmission is instructed. A recording medium comprising: a code of a step of determining whether or not a color data is included, and a code of a step of issuing a predetermined warning while prohibiting the execution of broadcast transmission when color data is included. 10. A storage medium storing a computer program for controlling a communication device, wherein the computer program stores a code of a step of storing information on a transmission function of each destination in advance, and a broadcast transmission instruction. If there is, a code of a step of determining whether or not the data to be transmitted includes color data, and a code of a step of determining whether or not to execute broadcast transmission based on the information if the data to be transmitted includes color data And a recording medium comprising: 11. A code for a step in which the computer program refers to the transmission function of each destination based on the information and determines whether or not the transmission functions of all destinations have the same color data transmission function. The recording medium according to claim 10, further comprising: a code for a step of prohibiting broadcast transmission when there is no commonality and issuing a predetermined warning. 12. The computer program refers to a code of a step of creating data to be transmitted as both color data and black-and-white data, and a transmission function of each destination based on the information, and corresponds to the color data. The recording medium according to claim 10, further comprising: a code for transmitting the black-and-white data to a destination that is not present.