JPH06125470A - Color facsimile equipment - Google Patents

Abstract

PURPOSE:To print out undesired color picture information in an inexpensive black/white print when the undesired color picture information is received by the color facsimile equipment. CONSTITUTION:A color print permission station ID storage section 42 of a reception section of a color facsimile equipment stores ID numbers of opposite stations whose color print is permitted. Upon the receipt of color picture data, a color print enable discrimination section 28 discriminates whether or not an ID of a transmission station is registered in the color print permission station ID storage section 42. When not registered, a color print enable discrimination section 28 outputs a disable signal. Upon the receipt of the disable signal, a color/black.white conversion section 24 converts color picture information into black.white information and outputs it to a selector S3. Since the selector S3 selects a black.white multi-value page decoding section 31, the picture information converted into the black/white information is sent to a black.white printer 36, in which a black.white print is printed out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color facsimile machine, and more particularly to a color facsimile machine which is designed to prevent a color print when an unnecessary color document is received, thereby reducing running costs.

[0002]

2. Description of the Related Art When a received document is color printed by a conventional color facsimile apparatus, the cost per sheet is
It is significantly more expensive than that of traditional black and white images. However, conventionally, the necessity of the received document is not known before the printout, so the entire received document is printed out. Therefore, there has been a problem that the running cost of the color facsimile apparatus becomes high.

On the other hand, there has been proposed a system in which a color facsimile apparatus is provided with a display device such as a CRT or a liquid crystal panel so that a received document can be temporarily displayed on the display device to judge the necessity. Since the display device is provided, a new problem arises that the cost of the device becomes high.

To solve this problem, Japanese Patent Laid-Open No. 3-26786
Japanese Patent Laid-Open No. 4 (first prior art) is provided with a means for instructing a color facsimile apparatus to print data received in color in a single color, and when the monochrome printing is instructed by the means, the received image information is displayed. A technique is disclosed in which the received image information is stored in a memory, and the received image information is converted into monochromatic data for monochromatic printing.

According to this prior art, since a color image can be printed in a single color as needed, the running cost can be reduced. Further, after printing with a single color, when color printing is required, the received image information stored in the memory may be read and printed, so that a color image can be easily obtained.

Further, as the prior art related to the present invention,
There is one disclosed in Japanese Patent Laid-Open No. 3-68275 (second prior art). In this publication, an image recording device such as a printer is provided with a color recording unit and a monochromatic recording unit, and a color / monochromatic recording instruction unit for instructing whether to perform color recording or monochromatic recording, and color image information is temporarily stored. There is disclosed a technique in which the color image information is converted into monochromatic data and recorded by the monochromatic recording means when the monochromatic recording is instructed by the color / monochromatic recording instructing means.

Also in the second prior art, as in the first prior art, after the color image information is once recorded in a single color,
A color image can be recorded easily.

[0008]

When the conventional color facsimile apparatus is set to be capable of automatically receiving, when an unnecessary color document, for example, a color document such as direct mail is received, it is printed out by the color printer. Will be done.

As is well known, color printing is much more expensive than black-and-white printing, so that the conventional color facsimile apparatus has a problem of high running cost.

Further, in the first prior art, since the user instructs the selection of color recording and monochrome recording,
There is a problem in that it is not possible to automatically select whether the received document is color-recorded or single-color recorded, the probability of printing an unnecessary color document in color is high, and the running cost is high.

An object of the present invention is to eliminate the above-mentioned problems of the prior art and to automatically prevent color printing when an unnecessary color document is received.
It is an object of the present invention to provide a color facsimile apparatus that can reduce running costs.

[0012]

In order to achieve the above-mentioned object, the invention of claim 1 is a compressed data storage unit for storing received compressed image information, a decoding unit for decoding the compressed image information, and a decoding unit. In a color facsimile apparatus equipped with a printer for printing the recorded image information, a color print permission station identifier storage unit (or a color print non-permission station identifier storage) for registering the identifier of the partner station that permits (or does not permit) color printing Part) and the transmitter identifier match the partner station identifier registered in the color print permission station identifier storage section (or the color print non-permission station identifier storage section). It is characterized in that it is equipped with.

According to a second aspect of the present invention, the color print permission password storage unit for registering a password for permitting color printing and the color print password sent from the transmitter are registered in the color print permission password storage unit. It is characterized in that it is provided with a color print permission judging unit for judging whether or not the password matches the existing password.

According to a third aspect of the present invention, whether the speed dial storage unit for registering the speed dial including the partner station identifier and the transmitter identifier match the partner station identifier registered in the speed dial storage unit. According to the invention of claim 4, there is provided a color print permission judging unit for judging whether or not a speed dial is stored, a speed dial storing unit in which a speed dial including a partner station identifier and a "color print permission" attribute is registered, and a transmitter identifier. And the partner station identifier registered in the speed dial storage unit match and the "color print permission" attribute is determined to be permitted, a signal for instructing color-to-black-and-white conversion of the received image information is transmitted. It is characterized in that it is provided with a color print permission judging section adapted to output.

[0015]

According to the invention of claim 1, the partner station in which the color print permission judgment unit is registered in the transmitter identifier and the color print permission station identifier storage unit (or the color print non-permission station identifier storage unit). When it is determined that the identifiers do not match (or match), the received image information is converted from color to black and white and printed out in black and white.

According to the second aspect of the present invention, the color print permission determination unit determines that the color print password sent from the transmitter and the partner station password registered in the color print permission password storage unit do not match. When it is determined that there is, the received image information is converted from color to black and white, and is printed out in black and white.

According to the third aspect of the present invention, when the color print permission judging unit judges that they do not coincide with each other, the received image information is converted from color to black-and-white and is output by the black-and-white printer. Further, according to the invention of claim 4, the color print permission determination unit determines that the transmitter identifier and the partner station identifier registered in the speed dial storage unit match and the “color print permission” attribute is permitted. The received image information is converted from color to black and white and printed out in black and white, except when it is determined that

Therefore, according to the present invention, when the color image information or the image information in the mixed mode is received from the unexpected transmitting station, the color image information or the mixed mode image information can be output by the monochrome printer, and the inexpensive printout can be performed. it can. As a result, the running cost of the color facsimile device can be reduced.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings.

First, the overall structure of a color facsimile apparatus including the present invention will be described in detail with reference to FIGS. 1 is a block diagram showing the configuration of the transmitter,
FIG. 2 is a block diagram showing the configuration of the receiver according to the first embodiment of the present invention. Also, thick lines in the figure indicate image information, and thin lines indicate control signals.

Reference numeral 1 denotes a panel of a color facsimile apparatus, and a key input from the panel 1 is converted into an electric signal by a panel control unit 2 and output. The scan signal output from the panel control unit 2 is input to the scanner control unit 3, and the scanner control unit 3 controls the operation of the scanner 5.

When the panel 1 is instructed to transmit the document information, the document information 4 is read by the scanner 5 and converted into an electric signal. The image information converted into an electric signal is converted into a digital signal by the A / D conversion unit 6 and sent to the IPS (Image Processing System) unit 7.

As shown in FIG. 3, the IPS unit 7 includes, for example, a shading correction unit 7a and an MTF (Modulat).
ion transfer function) correction unit 7b and RGB → CI
It is composed of an ELAB converter 7c.

As shown in the figure, in this embodiment, the image information is converted into a 12-bit signal of R (red), G (green) and B (blue) by the A / D converter 6, and the IPS Input to part 7. In the IPS unit 7, the RGB 12-bit image signal is subjected to well-known shading correction and MTF correction, and then the RGB → CIELAB conversion unit 7c outputs the CIE L.
Converted to AB.

Each of the RGB → CIELAB conversion units 7c has one
A 2-bit RGB signal is converted into 8-bit L ^* , a ^* , b
^* Convert to a signal. In addition to the CIELAB, the color space used when transmitting a color image is YC.
Although there are various types such as rCb, RGB, and YMC (K), CIELAB is used in this embodiment.

CIELAB is a well-known expression of color space, but the three primary colors R defined by CIE (International Lighting Association),
From G and B (reference white is equal energy white) to CIELAB
The conversion to can be performed via the tristimulus values X, Y, Z as follows.

[0027]

[Equation 1] Here, X0, Y0 and Z0 are tristimulus values of the illumination light, and Y0 = 100.

Reference numeral 8 in FIG. 1 denotes a page mode determination unit which determines whether one page of the document information is black and white data, color data, or mixed black and white data. To do. This determination is based on the above L ^* , a
^This can be done by the ^* and b ^* signals. That is, L
^{The *} signal represents a luminance component, and the a ^* and b ^* signals represent color components. Therefore, if the magnitudes of the a ^* and b ^* signals are within a predetermined value, black and white data is obtained. If the inside and the outside of the range are mixed, it can be determined as mixed data.

The determination result of the page mode determination unit 8 is stored in the page information temporary storage unit 9. The page information temporary storage unit 9 sends the page information to the selector units (selection units) S1 and S2 of the encoding units 10 to 13 and the compressed data management unit 15.

Here, the page information will be described with reference to FIG. The page information includes the number of pages, the first page, the second page, ...
.., data representing each attribute of the Nth page (that is, black and white, mixed, color). Then, 1 byte (8 bits) is assigned to the number of pages, and 2/8 bytes (2 bits) is assigned to each attribute. The page attributes are
As shown in (b) of the figure, for example, black and white binary is 0
0, black-and-white multi-value 01, mixed 10 and color 11.

FIG. 3C shows a specific example of page information, where the number of pages is 5, and the first page is black and white binary, 2
It shows that the page is multi-valued in black and white, the third page is mixed, the fourth page is color, and the fifth page is binary in black and white. Note that in the figure, 00 is 3 in order to perform byte alignment.
Have been added.

Referring back to FIG. 1, the structure of the present invention will be described. Reference numeral 10 is a monochrome binary page coding unit, 11 is a monochrome multivalued page coding unit, 12 is a color page coding unit, and 13 is a mixed page coding unit. These encoding units 10 to 1
One specific example of No. 3 is disclosed in FIG.

That is, the black and white binary page coding unit 10 is composed of a binarization processing unit 10a and an MMR encoder 10b. The binarization processing unit 10a converts the 8-bit ^{L *} signal into binary to 1-bit ^{L *} signal. The MMR encoder 10b MMR-encodes and compresses the L ^* signal.

The black-and-white multi-value page coding section 11 is composed of a bit plane developing section 11a and an MMR encoder 11b. The bit plane expansion unit 11a expands the 8-bit L ^* signal into a bit plane. That is, one page of data for each layer from LSB to MSB is created. The MMR encoder 11b MMR-encodes and compresses the data for each layer for each page.

The color page coding unit 12 is composed of a bit plane developing unit 12a and an MMR coding unit 12b. The bit plane expansion unit 12a is
The L ^* , a ^* , and b ^* signals of the bit are expanded in each bit plane. That is, one page of data for each layer from LSB to MSB is created for each of the L ^* , a ^* , and b ^* signals. Then, the MMR encoder 11b outputs L ^* , a
^The bit planes of the ^* and b ^* signals are MMR encoded and compressed.

The mixed page coding section 13 is composed of a binary area coding section 13a, a black and white multi-valued area coding section 13b, and a color area coding section 13c. Which of these encodings is to be performed is selected by the block information sent from the block information storage unit 14 of the mixed page.

As shown in FIG. 6 (a), the block information includes the number of blocks, data representing the attribute values of 1 block to N blocks, and, as shown in FIG. 6 (b), 1
It is composed of data representing the area of blocks to N blocks (coordinates x, y at the upper left point; coordinates x, y at the lower right point). 1 byte is assigned to the number of blocks, 2/8 bytes is assigned to the attribute value, and 8 bytes are assigned to the area.
As the attribute value, as shown in FIG. 7C, 01 represents multi-valued black and white and 11 represents color.

FIG. 3D shows a conceptual diagram of an example of a mixed page. If the black-and-white multivalue in this conceptual diagram is the first block and the color is the second block, the block information is as shown in (e) of the same figure.
As shown in, the number of blocks is 2, the attribute value of the first block is 01, the attribute value of the second block is 11,
The data representing the area of each block is as shown in Figure (f).

The compressed data storage unit 18 of FIG. 1 stores the data encoded by the encoding units 10 to 13 or the block information output from the mixed page block information storage unit 14 from the compressed data management unit 15. It is stored according to the address management information of.

The compressed data stored in the compressed data storage unit 18 is modulated by the modem unit 19, and the NCU unit 20.
Is sent to the line via. The modem unit 19 is controlled by the protocol control unit 16, and the NCU unit 20 is controlled by the network control unit 17, as is conventional.

Next, the configuration of the receiver of the color facsimile apparatus of the present invention will be described with reference to FIG.

Reference numeral 21 is an NCU unit, 22 is a modem unit, 23 is a compressed data storage unit, and 24 is a color-to-black-and-white conversion unit.
In the color-to-black-and-white conversion unit 24, the input L ^* , a
It is sufficient to extract the L ^* signal, which is a luminance signal, from the ^* and b ^* signals, and color-to-black and white conversion can be easily performed.

Reference numeral 25 is a network control unit for controlling the operation of the NCU unit 21, 26 is a protocol control unit, and 27 is a compressed data management unit. From the protocol control unit 26 to the compressed data management unit 27, an identifier (hereinafter, simply referred to as an ID or a transmitter ID) such as a transmitter ID and a transmission station name (katakana), and page information are output.

The compressed data management unit 27 creates address management information based on the page information from the protocol control unit 26 and sends it to the compressed data storage unit 23. The storage unit 23
Addresses are managed by the address management information.
The compressed data management unit 27 also sends the transmitter ID to the color print permission determination unit 28 and the page information to the page information temporary storage unit 29.

When the color-to-black-and-white conversion unit 24 receives the permission signal from the color print permission determination unit 28, the input image information is directly processed by the selector S3 without performing any operation.
Output to. On the other hand, if you receive a disapproval signal, color →
The black-and-white conversion unit 24 performs color-to-black-and-white binary or multi-value conversion and outputs it to the selector S3.

The attribute value of the page information stored in the page information temporary storage unit 29 is updated from the color mode to the monochrome binary or multi-value mode when the color → monochrome conversion unit 24 performs color → monochrome conversion. To be done.

The selector S3 is a page information temporary storage unit 2
9 according to the attribute value of the page information, and the monochrome binary page decoding unit 30, the monochrome multi-value page decoding unit 31, the color page decoding unit 32, the mixed page decoding unit 33, the mixed page The block information storage unit 34 is selected.

The image information decoded by the black and white binary page decoding unit 30 and the black and white multi-valued page decoding unit 31 is sent to the black and white printer control unit 35 and the black and white printer 36 and printed out in black and white. The image information decoded by the color page decoding unit 32 and the mixed page decoding unit 33 is sent to the color printer control unit 37 and the color printer 38,
Printed out in color.

The black-and-white printer 36 and the color printer 38 do not have to be provided independently, and one printer may have a black-and-white printing function and a color printing function.

A panel 40 and a panel controller 41 are the same as or equivalent to the panel 1 and the panel controller 2 in FIG. 42 is a color print permission station ID storage unit, and 43 is a color print mode control unit.

The ID of the partner station that may print in color is registered in the color print permission station ID storage section 42. The ID of the partner station can be registered by the user from the panel 40, and FIG. 7 shows an example of the color print permission station list.

As is apparent from FIG. 7, in the color print permission station list, only the destination station name and destination station ID for which color printing is permitted or the destination station ID for which color printing is permitted are registered. There is.

Next, the protocol of the receiver shown in FIG.
~ It demonstrates with reference to the flowchart of FIG.

After receiving the call (step S1), the calling (C
When NG) is received (Yes in step S2), the process proceeds to step S3, and the CED command is transmitted to the transmitting side facsimile device. Next, in step S4, NSF, CS
I and DIS commands are output. At this time, NSF
The (non-standard function) command informs the transmitting side facsimile device that the reception in the color mode / black and white multi-valued mode / mixed mode is also possible.

In step S5, NSS, TSI, DC
Receive S command. The NSS and TSI commands are optional and may not be transmitted from the transmitter. The transmitter declares to communicate in the color mode, the black and white multi-valued mode, or the mixed mode by the NSS command. When the mode is not declared by the NSS command or when the NSS command is not transmitted, the monochrome binary mode communication is performed according to the normal CCITT group 3 protocol.

In step S6, the training is performed and the TCF command is received. If the result is good, the operation proceeds to step S9 and the operation of transmitting the CFR command is executed. On the other hand, if not good, step S8
Proceed to to send the FTT command.

In step S10, it is judged whether or not the NSS command is received. If not received, the process proceeds to step S15, in which monochrome binary mode communication is started. On the other hand, when the NSS command is received,
In steps S11, S12, and S13, it is determined whether the notification by the NSS command is the monochrome multi-value mode, the mixed mode, or the color mode. And
In the black-and-white multi-valued mode, the process proceeds to step S18, in the mixed mode, the process proceeds to step S17, and in the color mode, the process proceeds to step S16.

FIG. 9 shows the protocol when the operation proceeds to the monochrome binary mode. Training is performed in step S20, and when one proceeds to step S21, one page of image information is received. In step S22, it is determined whether or not the MPS command is received. If the determination is affirmative, the process proceeds to step S23, and the MCF command is transmitted. Then, returning to step S20, preparations are made to receive the image information of the next page.

When the page of the same attribute parameter is received, the determination in step S22 becomes negative, and step S22 is performed.
Proceed to 24. In step S24, it is determined whether or not the EOM command is received. If the result is affirmative, the process proceeds to step S25 to transmit the MCF command. Then, returning to step S4, the communication is continued. Step S
When the process proceeds from 24 to S25, the resolution, paper size,
Attribute parameters such as communication mode (color, mixed, black and white) will be changed.

When the result in step S24 is negative, the process proceeds to step S26, the EOP command is received, and step S
At 27, the MCF command is transmitted. Finally, it receives the DCN command and ends.

Next, the protocol when the color mode is entered will be described with reference to FIGS.

In step S31, the L ^* component of the image information for one page is received. When the reception of one page of the L ^* component is completed, the process proceeds to steps S32 and S33, where MP
The S command is received, and then the MCF command is transmitted.

Next, the process proceeds to step S34, and the operation for receiving the a ^* component of the image information for one page is performed. The a
^{* When} reception of one page of the component is completed, step S3
5, the process proceeds to S36, the MPS command is received, and then the MCF command is transmitted.

Then, the process proceeds to step S37, and the b ^* component of the image information for one page is received. When the reception of one page of the b ^* component is completed, the process proceeds to step S38,
A determination is made whether an MPS command has been received. M
When the PS command is received, the process proceeds to step S39, the MCF command is transmitted, and the process returns to step S31. That is, the operation shifts to the operation of receiving the image information of the next page having the same attribute parameter.

If step S38 is negative, the process proceeds to step S40. Steps S40 to S44 are shown in FIG.
Since the operation is the same as that of steps S24 to S28, description thereof will be omitted.

Details of the processing in step S31 are shown in FIG.
The flow chart of No. 1 will be described. Step S311
Then, training is performed, and in step S312, an operation of receiving the first bit plane of the L ^* component of the image information for one page is performed. After receiving one page,
MPS reception and MCF transmission operations are performed in steps S313 and S314. In step S315, training is performed, and in step S316, one page of the second bit plane is received. Then, step S
At 317 and S318, MPS reception and MCF transmission operations are performed.

The same operation as described above is performed for the third to eighth bit planes. When the reception of one page of the eighth bit plane is completed in step S320, the reception of one page of the L ^* component of the image information is completed.

The process of FIG. 11 is the same as the process of step S31.
Although it was a reason, a in step S34 ^*1 page received,
B of S37^*The same is true for receiving one page of
The process is executed.

Next, the protocol when the mixed mode is entered will be described with reference to FIGS.

In step S51 of FIG. 12, block information for one page is received. Next, in step S52,
One page of black and white binary image information is received. At this time, the black-and-white multi-valued block area and the color block area in the page are all replaced with 0 data and sent.

In step S53, it is determined from the block information whether the first block is a color block. When it is determined that it is not a color block, that is, when it is determined that it is a multi-valued black and white, the process proceeds to step S54,
One block of image information of a black and white multi-valued block is received.
On the other hand, when the determination in step S53 is affirmative, the process proceeds to step S55, and the receiving operation for one block of image information of the color block is performed.

Since the receiving operation for one block of the image information of the color block is almost the same as that of steps S31 to S37 of FIG. 10, the description thereof will be omitted.

In step S62, it is determined whether or not there is a block that has not been received. If there is a block that has not been received, the process proceeds to step S63, and the MPS command is received. Then, the process proceeds to step S64, the MCF command is transmitted, and the process returns to step S53.

When the determination in step S62 is negative, the process proceeds to step S65. If it is determined in this step that the MPS has been received, the process proceeds to step S66 and the MCF
The command is transmitted and the process returns to step S51. Then, the block information for the next one page is received.

The above operation is repeated, and step S6 is performed.
If the determination of 5 is negative, the process proceeds to step S67. The processes of steps S67 to S71 are the same as steps S24 to S24 of FIG.
Since the operation is the same as that of S28, description thereof will be omitted.

Next, referring to FIG. 13, the step S
51, S52, S54 and S55 (S58, S61)
The operation of will be described in detail.

In the process of step S51, training is performed and block information is received, as shown in FIG. 13 (a). Next, MPS reception and MCF transmission are performed, and the processing ends.

In the process of step S52, training is performed and the image information is set to 1 as shown in FIG.
Receive pages. Subsequently, MPS reception and MCF transmission are performed, and the processing ends.

In the process of step S54, training is performed and reception of one block of the first bit plane is performed, as shown in FIG. Then MP
S reception and MCF transmission are performed. Next, training, reception of one block of the second bit plane, MPS
Reception and MCF transmission are performed. The same operation as this is the eighth
The reception of one block of the bit plane is performed, and when the reception ends, the process of step S54 ends.

The processing of step S55 (S58, S61) is performed as shown in FIG. This process is substantially the same as step S54.

Next, the protocol used when the multi-valued black and white mode is entered will be described with reference to FIGS. 14 and 15.

In step S81, one page of image information is received, and in step S82, it is determined whether or not the MPS command is received. When the MPS is received, the process proceeds to step S83 and the MCF is transmitted. Then, the process returns to step S81 to receive the image information of the next page for one page.

If the determination in step S82 is negative, the process proceeds to step S84. Steps S84 to S88 are shown in FIG.
Since the operation is the same as that of steps S24 to S28, description thereof will be omitted.

Details of the processing in step S81 are shown in FIG.
5 is shown. That is, training, reception of one page of the first bit plane, MPS reception, M
CF transmission is repeated until reception of one page of the eighth bit plane. Then, when the reception of one page of the eighth bit plane is completed, the processing ends.

Next, the operation of the main part of the first embodiment will be described with reference to FIG. As described in the flowcharts of FIGS. 8 to 15, when the image signal is received in the monochrome binary mode by the protocol communication (step S15 in FIG. 8).
As described in FIG. 9, the black and white binary image information is 1
The pages are received and sequentially stored in the compressed data storage unit 23.

When the image information is received in the color mode (step S16 in FIG. 8), the image information L ^* , a ^* , b ^* is set for each bit plane and each page as described with reference to FIG. , Sequentially stored in the compressed data storage unit 23.

When the image information is received in the mixed mode (step S17 in FIG. 8), the block information, the image information of the black-and-white multi-valued block, and the image information of the color block L ^* , as described in FIG. , A ^* , b ^* , and out-of-block monochrome binary image information are sequentially stored in the compressed data storage unit 23 for each 1-bit plane and for each page.

Further, when the image information is received in the black-and-white multi-valued mode (step S18 in FIG. 8), the black-and-white multi-valued image information is output for each 1-bit plane and for each page as described with reference to FIG. , Sequentially stored in the compressed data storage unit 23. On the other hand, the control information such as the transmitter ID and page information passes through the protocol control unit 26 and the compressed data management unit 2
Stored in 7.

The color print permission judging section 28 judges whether or not the transmitter ID stored in the compressed data management section 27 is registered in the color print permission station list of the color print permission station ID storage section 42. If the color print permission determination unit 28 is registered,
The permission instruction is sent to the color → black and white converter 24. On the other hand, if it is not registered or if the TSI command has not been received, a non-permission instruction is sent to the color → black and white conversion unit 24.

When the color print permission instruction is received, the color-to-black / white conversion unit 24 sends the image information sent from the compressed data storage unit 23 to the selector S3 as it is. At this time, since the attribute value of the page information of the page information temporary storage unit 29 indicates the color mode or the mixed mode, the selector S3 selects the color page decoding unit 32 or the mixed page decoding unit 33 according to the attribute value. .
As a result, the received image information is printed by the color printer 38.

On the other hand, when the color print disapproval instruction is received, the color → monochrome conversion unit 24 converts the image information sent from the compressed data storage unit 23 into monochrome binary or monochrome multivalue, and the selector S3 outputs the converted image information. Send out. At this time, since the attribute value of the page information in the page information temporary storage unit 29 indicates the monochrome binary mode or the monochrome multivalue mode, the selector S
3 selects the monochrome binary page decoding unit 30 or the monochrome multi-value page decoding unit 31 according to the attribute value. As a result,
The received color mode image information is displayed in the monochrome printer 36.
Will be printed by.

[0092] The color → monochrome conversion of the color → monochrome conversion unit 24, image information of the color ^{L *,} a *, ^{b a} * representing the color component from ^* to remove the ^{b *} component represents the luminance component This can be done by outputting only the L ^* component.

As described above, according to the present embodiment, when unnecessary image information is sent in the color mode, the ID of the transmitter is not registered in the color print permission station list, so that it is automatically set. Since it is printed by the monochrome printer 36, expensive color printing can be avoided.

Next, a second embodiment of the present invention will be described with reference to FIG. In this embodiment, instead of the color print permission station ID storage unit 42 of the first embodiment, FIG.
The feature is that the color print disapproval station ID storage section 42a is provided. The same figure (b) shows the color printing non-permission station I.
An example of a list registered in the D storage unit 42a is shown, in which the partner station name and partner station ID, or partner station ID
Only registered. According to the present embodiment, the color print permission judging unit 28 checks whether or not the transmitter ID once registered in the compressed data managing unit 27 is registered in the color print disapproval station ID storage unit 42a and is registered. If the color printing is not permitted, the color print disapproval notice is output to the color → black and white converter 24. Upon receiving the notification that color printing is not permitted, the color-to-black-and-white conversion unit 24 converts the color image information into black-and-white binary or multi-valued image information and outputs it to the selector S3.

On the other hand, if the transmitter ID is not registered in the color print disallowed station list, or if T
When the SI command is not received, the color print permission determination unit 28 outputs a color print permission signal to the color → black and white conversion unit 24. As a result, the image information received in the color mode or the mixed mode is the color printer 3
It will be printed at 8.

Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 17 is a block diagram of a characteristic part of this embodiment, and the blocks subsequent to the selector S3 are the same as those in FIG. Reference numeral 42b in FIG. 17 is a color print password storage unit, and other reference numerals are used in FIG.
Is the same as or equivalent to.

In this embodiment, when the color print password included in the NSS command does not match the color print password in the color print password storage section 42b registered in advance, or the color print password is transmitted. Only when it does not exist, the color print permission determination unit 28 outputs a color print disapproval signal to the color → monochrome conversion unit 24.

Therefore, the image information in the color mode sent from the transmitting station to which the color print password is not registered is converted into black-and-white multivalued data and printed out, so that the running cost can be reduced. You can

Next, a fourth embodiment of the present invention will be described with reference to FIG. FIG. 18 is a block diagram of a characteristic part of this embodiment, and the blocks subsequent to the selector S3 are the same as those in FIG. Reference numeral 42c in FIG. 18 denotes a speed dial storage unit, and other reference numerals indicate the same or equivalent parts as those in FIG.

Further, FIG. 19A shows an example of the speed dial list registered in the speed dial storage unit 42c, and FIG. 19B shows another example of the speed dial list. The
The destination station name, fax number, and destination station ID are registered in the speed dial list in (a), and the "color print permission" attribute is further registered in the speed dial list in (b). Note that, as shown in the figure, the partner station ID may not be registered in the speed dial list, or only the partner station ID may be registered.

When the list of (a) is registered in the speed dial storage section 42c, the color print permission judgment section 28 determines the content of the TSI command (transmitter ID) and the partner registered in the list. It is determined whether or not the station ID (registration ID) matches, and if they match, a color print permission signal is output to the color → black and white conversion unit 24. On the other hand, if they do not match or if the TSI command is not sent, the color print disapproval signal is changed to color →
It is output to the black-and-white converter 24.

Further, when the list of (b) is registered in the speed dial storage section 42c, the color print permission judging section 28 determines that the content (transmitter ID) of the TSI command is the partner station ID of the list. Only when they match and the “color print permission” attribute is permitted, the permission notice is output to the color → black and white conversion unit 24.

In other words, when the TSI command is not received, the transmitter ID does not match the partner station ID in the list, and the transmitter ID and the partner station ID in the list match. If the "color print permission" attribute is not permitted, the color print permission determination unit 2
8 outputs a disapproval notice to the color → black and white conversion unit 24.

Therefore, when the image information is received in the color mode or the mixed mode, the color printout can be automatically limited, and the running cost of the color facsimile apparatus can be reduced.

[0105]

As is apparent from the above description, according to the present invention, when color image information is unexpectedly sent from the sending side facsimile apparatus, this can be automatically printed in black and white. As a result, unnecessary image information is not printed out in an expensive color, and the running cost can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram of a transmission unit of a color facsimile apparatus of the present invention.

FIG. 2 is a block diagram of a receiver of the first embodiment of the color facsimile apparatus of the present invention.

3 is a block diagram showing a specific example of an IPS unit in FIG.

FIG. 4 is an explanatory diagram of page information.

FIG. 5 is a block diagram showing a specific example of each encoding unit.

FIG. 6 is an explanatory diagram of block information.

FIG. 7 is a diagram showing a specific example of a color print permission station list.

FIG. 8 is a flowchart showing a protocol of a receiving unit of the color facsimile apparatus.

FIG. 9 is a flowchart showing a protocol in the monochrome binary mode.

FIG. 10 is a flowchart showing a protocol in a color mode.

FIG. 11 is a flowchart showing details of step S31 in FIG.

FIG. 12 is a flowchart showing a protocol in the mixed mode.

FIG. 13 shows steps S51, S52, and S54 of FIG.
5 is a flowchart showing details of S55.

FIG. 14 is a flowchart showing a protocol in the monochrome multi-value mode.

15 is a flowchart showing details of step S81 in FIG.

FIG. 16 is an explanatory diagram of the second embodiment of the present invention.

FIG. 17 is a block diagram of an essential part of a third embodiment of the present invention.

FIG. 18 is a block diagram of an essential part of a fourth embodiment of the present invention.

19 is a diagram showing a specific example of a speed dial list stored in the speed dial storage unit of FIG.

[Explanation of symbols]

21 ... NCU section, 22 ... Modem section, 23 ... Compressed data storage section, 24 ... Color-to-monochrome conversion section, 26 ... Protocol control section, 27 ... Compressed data management section, 28 ... Color print permission determination section, 29 ... Page information Temporary storage unit, 31 ... Monochrome multi-value page decoding unit, 32 ... Color page decoding unit, 36 ...
Black-and-white printer, 38 ... Color printer, 42 ... Color print permission station ID storage section, 42a ... Color print non-permission station ID storage section, 42b ... Color print password storage section, 42c ... Speed dial storage section

Claims (4)

[Claims] 1. A color facsimile apparatus comprising a compressed data storage unit for storing received compressed image information, a decoding unit for decoding the compressed image information, and a printer for printing the decoded image information. The color print permission station identifier storage unit (or the color print non-permission station identifier storage unit) that registers the identifier of the partner station that permits (or does not permit) the color print permission station identifier storage unit (or A color print non-permission station identifier storage section), and a color print permission determination section for determining whether or not the other station identifier is registered, and the color print permission determination section does not match (or matches).
When it is determined that the color facsimile machine is configured to convert the received image information from color to black and white, and print it out in black and white. 2. A color facsimile apparatus comprising a compressed data storage unit for storing received compressed image information, a decoding unit for decoding the compressed image information, and a printer for printing the decoded image information. The color print permission password storage section for registering a password for permitting color printing, and the color print judgment for determining whether the color print password sent from the transmitter matches the password registered in the color print permission password storage section When the color print permission determining unit determines that the color print permission does not match or the color print password is not sent from the transmitter, the received image information is converted from color to black and white,
A color facsimile machine characterized by printing out in black and white. 3. A color facsimile apparatus comprising a compressed data storage section for storing received compressed image information, a decoding section for decoding the compressed image information, and a printer for printing the decoded image information A speed dial storage unit for registering a speed dial including the identifier; and a color print permission determination unit for determining whether or not the transmitter identifier matches the partner station identifier registered in the speed dial storage unit. A color facsimile apparatus characterized in that when the color print permission judging unit judges that they do not match, the received image information is converted from color to black and white, and is printed out in black and white. 4. The color facsimile apparatus according to claim 3, wherein a speed dial including a partner station identifier and a “color print permission” attribute is registered in the speed dial storage unit, and the color print permission determination unit. The received image information is converted from color to black and white unless it is determined that the transmitter identifier and the partner station identifier registered in the speed dial storage unit match and the "color print permission" attribute is permitted. A signal for instructing that the received image information is converted from color to black and white and printed out in black and white when the color print permission judgment unit outputs a signal instructing color to black and white conversion. Color facsimile machine characterized by