JPH08256238A - Facsimile equipment - Google Patents

Abstract

PURPOSE: To provide a facsimile equipment for accurately transmitting the pictures of a quality range intended by a transmission side. CONSTITUTION: At the time of reading writing-and-drawing information, a picture processing level at the time of read is compared with an allowable picture conversion level for a transmission destination, and when it is judged that transmission is impossible by the comparison, by the command of a CPU 3, transmission impossiblity is reported by an operation panel 8 and the read of the writing- and-drawing information is stopped. Also, at the time of the transmission, the picture processing level of the transmission destination stored in a RAM 10 for storing transmission destination information is compared with the picture processing level of the writing-and-drawing information stored in a hard disk 9 for storing the writing-and-drawing information to be transmitted. Based on the comparison, by the command of the CPU 3, the picture processing level of the writing-and-drawing information is changed corresponding to the picture processing level of the transmission destination and the transmission is performed. When it is judged that the allowable picture conversion level at the time of the transmission is higher than the picture processing level of the transmission destination, the transmission is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus having a color transmitting / receiving function.

[0002]

2. Description of the Related Art In a facsimile machine that handles only black and white binary images, the difference in image quality between the transmitting side facsimile apparatus and the receiving side facsimile apparatus is the paper size (A3, B4,
A4) difference and linear density (400 × 400 dpi, 200
The difference is about × 200 dpi). In this case, if there is a difference in image quality between the sending side terminal and the receiving side terminal during facsimile communication, the sending side facsimile machine may automatically perform conversion to match the image quality of the receiving side facsimile machine. It was possible to perform facsimile communication without much inconvenience.

[0003]

However, in a facsimile machine having a color transmission / reception function and handling a full-color image, a grayscale image, etc., if the receiving side facsimile machine does not have the same level of performance as the transmitting side facsimile machine. When the sending facsimile machine automatically converts the image quality according to the performance of the receiving facsimile machine and sends it, the receiving side can receive an image of the quality intended for sending by the sending side. However, there is a problem that the facsimile communication becomes meaningless.

The present invention has been made in view of the current state of facsimile communication between transmission / reception terminals having different performance levels as described above, and an object thereof is to obtain an image in a quality range intended by the transmission side. It is an object to provide a facsimile device that performs transmission accurately.

[0005]

In order to achieve the above object, the invention according to claim 1 has a first storage means for storing document information to be transmitted and a second storage means for storing destination information. Means, a comparison means for comparing the image processing level of the transmission destination stored in the second storage means with the image processing level of the document image information stored in the first storage means, and comparison of the comparison means According to the image processing level of the transmission destination, the image processing level of the document information is changed and transmitted, and when the allowable image conversion level at the time of transmission is higher than the image processing level of the transmission destination, the transmission is performed. It has a control means for stopping the.

Similarly, in order to achieve the above object, the invention according to claim 2 is the invention according to claim 1, wherein the image processing level is a full color level, a multi-color level, a gray scale level, a mono color level, It is characterized by including a binary image level.

Similarly, in order to achieve the above-mentioned object, the invention according to claim 3 is different from the invention according to claim 1 in that at the time of reading the document information, the image processing level at the time of reading and the allowable image at the time of transmitting. When comparing with the conversion level and determining that transmission is impossible,
It is characterized in that a reporting means is provided for reporting and stopping reading of the document information.

[0008]

In the invention according to claim 1, the comparison means allows
The image processing level of the transmission destination stored in the second storage unit that stores the transmission destination information and the image processing level of the document image information stored in the first storage unit that stores the document image information to be transmitted are compared. It Then, based on the comparison of the comparison means, the control means changes the image processing level of the document image information according to the image processing level of the transmission destination, and the transmission is performed. By the comparison of the comparison means, the allowable image conversion at the time of transmission is performed. When it is determined that the level is higher than the image processing level of the transmission destination, the transmission is stopped.

According to the invention of claim 2, in the operation of the invention of claim 1, a full color level, a multi-color level, a gray scale level, a mono color level, 2
The value image level is treated as the image processing level.

According to the third aspect of the invention, since the reporting means is provided for the first aspect of the invention, the first aspect of the invention is as follows.
In addition to the effect of the invention described above, when the notification means reads the image information, it compares the image processing level at the time of reading with the allowable image conversion level for the destination, and if it determines that transmission is not possible, issues a notification. Stop reading the document information.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention, FIG. 2 is an explanatory diagram showing stored information in the RAM of FIG. 1, and FIG. 3 is a flowchart showing an operation of the first half of the broadcast communication according to the present embodiment. 4 is a flowchart showing the latter half operation of the broadcast communication according to this embodiment.

In the present embodiment, as shown in FIG. 1, a color facsimile communication control unit 1 for controlling color facsimile communication, and document information to be transmitted at the time of transmission are read, and at the time of reception, the received document image information is recorded on a recording paper. The color copier unit 2 is for printing. In the color facsimile communication control unit 1, a G3 / G4 communication circuit 4 that performs a transmission / reception operation via a bus B, a code compression / reproduction circuit 5 that performs a compression / reproduction operation of document image data, to a CPU 3 that controls the overall operation, A color conversion circuit 6 for performing a color conversion operation of the document data,
A page memory 7 for storing transmitted document information or received document image information and an operation panel 8 for transmitting / receiving are connected. Similarly, the color facsimile communication control unit 1
Then, to the CPU 3 that controls the overall operation, via the bus B, a hard disk 9 in which transmission / reception document information is stored,
A RAM 10 that stores destination information is connected. The G3 / G4 communication circuit 4 is connected to the code compression / reproduction circuit 5, and the code compression / reproduction circuit 5 is connected to the color conversion circuit 6
, And the color conversion circuit 6 is connected to the page memory 7.

In the color copier unit 2, a scanner scanner correction circuit 12 for performing gamma correction and MTF correction of the document image information read by the color copier unit 2 is connected to a color scanner 11 for reading an original document image. The color correction circuit 13 that performs color correction is connected to the color correction circuit 13.
A printer correction circuit 14 that performs a correction at the time of a printer is connected to the printer correction circuit 14, and a color printer 15 that performs a color printing operation is connected to the printer correction circuit 14. The page memory 7 is connected to the scanner correction circuit 12, and the page memory 7 is connected to the printer correction circuit 14.

RAM of color facsimile communication controller 1
One-touch dial information 21 or speed dial information 22 as shown in FIG. 2 is stored in 10. The one-touch dial information 21 is a one-touch number 21a,
Destination dial number 21b, allowable image conversion level 21c during communication, and destination facsimile image processing level 2
It consists of 1d. Similarly, the speed dial information 22
Is the one-touch number 22a and the destination dial number 22
b, an allowable image conversion level 22c at the time of communication, and an image processing level 22d of the destination facsimile. As the allowable image conversion levels 21c and 22c at the time of communication,
5; full color, 4; multi-color, 3; gray scale, 2; mono color, 1; binary image are stored, and image processing levels 21d and 22 of the destination facsimile are stored.
Similarly, as d, 5; full color, 4; multicolor,
One of 3; gray scale, 2; mono color, and 1; binary image is stored. In this case, as the image processing levels 21d and 22d of the destination facsimile, an initial value of 1; binary image is stored, but once the communication is performed, it is automatically increased to a possible increase processing level of the destination facsimile. Will be updated.

The broadcast transmission operation of this embodiment having such a configuration will be described with reference to FIGS. 3 and 4. The operator
In step S1, the original is set on the color scanner 11,
In step S2, the input of the destination is started, but in step S
In 3, it is determined whether or not the one-touch / speed dial is set. If the determination is YES, the process proceeds to step S4 and the destination is registered in the RAM 10 by referring to the one-touch / speed dial number. It If the determination in step S3 is NO, the process proceeds to step S9, and the transmission destinations are respectively registered in the RAM 10.

In this state, the broadcast communication is started in step S5, and in step S6, the image reading level of the color scanner 11 is higher than the allowable image conversion levels 21c and 22c at the time of transmission according to a command from the CPU 3. If it is determined YES in step S6, the process proceeds to step S7, and it is determined whether or not there is a next destination. If the determination in step S6 is YES for all the destinations, the process proceeds to step S8, and a notification message "There is no destination that can be transmitted" is displayed on the operation panel 8 according to a command from the CPU3. Is displayed.

If there is a destination for which the determination in step S6 is NO, the process proceeds to step S10, in which the reading of the original document image by the color scanner 11 is started by the instruction of the CPU 3, and the read document image information is stored in the scanner correction circuit. In step 12, gamma correction and MTF correction are performed, and in step S11, they are stored in the page memory 7 as RGB signals. Then, in step S12, the color conversion circuit 6 converts the RGB image signal from the RGB signal to L with respect to the document image information read from the page memory 7 in accordance with a command from the CPU 3.
Color conversion to the ab signal is performed, and the converted document image information is stored in the hard disk 9 in step S13. In this case, it is determined in step S14 whether or not there are a plurality of documents.
Then, all originals are read, color converted, and stored in the hard disk 9.

Then, in step S15, the CPU
In accordance with the instruction of No. 3, the one-touch dial information 21 or the speed dial information 22 of the communication destination is read from the RAM 10, and in step S16, the permitted image conversion levels 21c and 22c at the time of transmission are the image processing levels of the destination facsimile. It is determined whether or not it is higher than 21d and 22d, and if the determination in step S16 is YES, the process proceeds to step S17, it is determined whether or not there is a next destination of the broadcast communication, and all the destinations are determined. , The determination in step S16 is Y
If it is ES, no calling operation is performed.

If the determination in step S16 is NO, the process proceeds to step S18 in FIG. 4, and the instruction of the CPU 3 initiates the calling operation via the G3 / G4 communication circuit 4 to connect the line. The facsimile communication protocol is executed, and the image processing levels 21d and 22d of the destination facsimile are updated in step S19. Then
In response to the instruction from the CPU 3, if the image information read at the time of reading from the hard disk 9 in step S20 cannot be transmitted as it is, the color conversion circuit 6 causes the color space of the partner facsimile machine to be displayed in step S21. After being converted, in step S22, JPEG encoding is performed by the code compression / reproduction circuit 5, and facsimile transmission is performed by the G3 / G4 communication circuit 4, and based on the determination in step S24, reading of the page information for all pages. , Color conversion, code compression and transmission are performed.

[0020]

According to the invention described in claim 1 or 2, the image processing level of the transmission destination stored in the second storage means for storing the transmission destination information by the comparison means, and the document information to be transmitted. Is compared with the image processing level of the document image information stored in the first storage means, and the control means
Based on the comparison of the comparison means, according to the image processing level of the transmission destination, the image processing level of the document image information is changed and transmission is performed.
When it is determined by the comparison of the comparison means that the allowable image conversion level at the time of transmission is higher than the image processing level of the transmission destination, the transmission is stopped, so that the transmission / reception is performed according to the quality of the document information to be transmitted. Accurate facsimile communication of the document information of the quality intended for transmission becomes possible between the terminals. According to the invention as set forth in claim 3, in addition to the effect obtained by the invention as set forth in claim 1, when the notification means reads the image information, the image processing level at the time of reading and the allowable image conversion level for the destination are compared. If it is determined that the transmission is impossible, a notification is issued and the reading of the document information is stopped, so that the transmission cannot be promptly notified, and the facsimile operation is efficiently performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing stored information in a RAM shown in FIG.

FIG. 3 is a flowchart showing the first half operation of the broadcast communication according to the embodiment.

FIG. 4 is a flowchart showing an operation in the latter half of the broadcast communication according to the embodiment.

[Explanation of symbols]

 1 Color Facsimile Communication Control Section 2 Color Copier Section 3 CPU 4 G3 / G4 Communication Circuit 5 Code Compression / Reproduction Circuit 6 Color Conversion Circuit 7 Page Memory 8 Operation Panel 9 Hard Disk 10 RAM 11 Color Scanner 12 Scanner Correction Circuit 13 Color Correction Circuit 14 Printer correction circuit 15 Color printer

Claims (3)

[Claims] 1. A first storage means for storing document information to be transmitted, a second storage means for storing destination information, and an image processing level of the destination stored in the second storage means. Comparing means for comparing the image processing level of the document image information stored in the first storage means, and an image processing level of the document image information according to the image processing level of the destination based on the comparison of the comparing means. And a control unit for stopping the transmission when the permissible image conversion level at the time of transmission is higher than the image processing level of the transmission destination. 2. The facsimile apparatus according to claim 1, wherein the image processing level includes a full color level, a multi color level, a gray scale level, a mono color level, and a binary image level. 3. The facsimile apparatus according to claim 1, wherein when reading the document image information, an image processing level at the time of reading,
A facsimile apparatus comprising: a notification unit that compares the allowable image conversion level at the time of transmission and determines that transmission is not possible, and makes a notification to stop reading the document information.