JPH05130375A - Communication equipment - Google Patents

Abstract

PURPOSE:To save paper and to attain high picture quality by reducing output print data in the communication equipment such as a facsimile equipment. CONSTITUTION:The equipment is provided with a coding means 104 and a storage means 108, received code information is stored in the storage means 108 in the compressed state and a reception number is detected by a detection means 111 and plural data are arranged onto one paper depending on the sheet number and printed out. Furthermore, the resolution of the reception data is converted and printed out in response to the resolution of a printer and data for number of sheets to be printed on one sheet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device for communicating image data with a partner terminal via a telephone line.

[0002]

2. Description of the Related Art Conventionally, as this type of apparatus, a facsimile apparatus having an automatic transmission function has been known. In a general facsimile, data corresponding to a transmission original is reproduced on the receiving side in the same size. On the other hand, when the paper size is saved, or when the paper size on the transmission side is large, for example, B4, A3, etc. Reductions are being made. In this case,
If the print size of the receiving side can be specified at the time of transmission, data transfer suitable for the receiving device is performed.If the printing size of the receiving side cannot be specified, data reduction processing is performed on the receiving side and size conversion is performed. Be implemented.

[0003]

Along with the high performance of the manufacturing technology and the high quality of the required printing quality, the high quality of the facsimile apparatus has been advanced. For facsimiles such as G3, which is recommended by CCITT (International Telegraph and Telephone Consultative Committee), the resolution of transfer is 8 pixels / mm for main scanning and 3.85 and 7.7 for sub scanning.
It is constructed based on the standardized standard of books / mm. The number of devices that configure the resolution of a facsimile device to be higher than this resolution is increasing, and how to configure the printout form of these devices is a problem in these communication devices that are characterized by high quality. ..

[0004]

A communication device for communicating image data with a partner terminal via a telephone line has an encoding means and a storage means, and stores the received code information in a compressed state. In addition, the number of received sheets is detected, and a plurality of sheets of data are arranged on one sheet of paper according to the number of sheets to be printed, and further, an encoding unit, a storage unit, and a reduction unit are provided, The resolution of the received data is converted according to the resolution and the number of data to be printed on one sheet, and the data is printed.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the embodiments shown in the drawings. FIG. 1 shows an embodiment of a facsimile apparatus adopting the present invention. Reference numeral 101 denotes a data network which is used for data communication and so on. It is an NCU (network control unit) that performs switching to and holding a loop. The NCU 101 connects the telephone line 101a to the telephone side 101
or the facsimile machine side 101b
To switch to. 102 is a telephone, which may be inside or outside the device.
The input / output terminal 101b of the facsimile machine is the modem 10
3 is connected. The modem 103 is a part that performs modulation and demodulation for communication. Reference numeral 104 is a code signal detecting means, which is C
The compression and decompression processing is performed according to the recommendation of CITT (International Telegraph and Telephone Consultative Committee). For example, a G3 facsimile apparatus performs processing based on compression rules such as MH and MR. Reference numeral 105 denotes a code signal transmitting means, and 106
Is a code signal detecting means.

Reference numeral 107 is a control unit that controls the entire apparatus.
A storage device 108 stores encoded signals and the like. Reference numeral 109 denotes a printing unit, which is a portion responsible for the printing function of the facsimile apparatus. Reference numeral 110 denotes a scanner means, which is a part that controls image input of a facsimile. 1
Reference numeral 11 denotes a detection means, which is a detection means for the present apparatus to detect various inputs.

Next, this embodiment will be described in detail. The input information detected by the detection unit 111 specifies the reduction processing at the time of reception. Based on this instruction, the present apparatus first stores the received data as print data in the storage device 108 without sending it to the printing unit as it is and printing it. At the time of storage, the compression efficiency is higher when the data is encoded and stored in the storage device, and the storage device can be used effectively. Check the number of pages received in sequence after facsimile reception is completed. The number of sheets to be printed on one sheet is determined by the number of sheets, and the reduction rate of data is further determined. FIG. 2 shows a reduction example when performing reduction printing.
The upper row is for single sheet transfer and is printed in its original size. The middle row is a 4-sheet original, and the vertical and horizontal sides are reduced to 1/2. The bottom row is a nine-sheet original, which is reduced by 1/3 in length and width. If the number of originals is between them, a space is taken for printing. Further, when it is determined that the 1/3 compression is too fine, it is possible to print a plurality of 1/2 sheets. Each reduction ratio is converted from the head resolution of the printing apparatus. A standard head resolution of 8 pixels / mm is generally used only for G3 facsimiles, but device resolutions of 16 pixels / mm, 12 pixels / mm, etc. are adopted for high-end printers, high-end facsimiles, multi-function machines, etc. Resolution conversion processing such as reduction according to each device resolution is performed. Returning to FIG. 1, the encoded data stored in the storage device is restored by the encoding means 104 according to the printing location, and transferred to the printing device for printing. Since restoration processing is required for each line of the stored page, if data rearrangement is required in the restoration situation, another storage device or the same storage device 108 is used to save print data. Play and print.

FIG. 3 shows another embodiment, which is different from FIG. 1 in that the reduction function 112 is provided. The reduction function performs conversion to a size according to the resolution conversion described above, but not only simple data thinning processing, but also data processing reduction processing that refers to peripheral data is effective for maintaining image quality. It becomes a method.

FIG. 4 shows an example of a reduction setting procedure. In step 401, the detection means 11 in FIG.
The reduction setting is executed based on the instruction of which setting is detected from 1 or the like. In S402, the encoded data from the telephone line network is received and stored in the storage means 108. In S403, the number of received sheets is detected, and the reduction ratio is determined from the relationship with the head resolution. In step S404, the function of the encoding unit 104 performs data demodulation processing and further reduction processing. S
In 405, printing is performed based on the final output data, and S4
It ends at 06.

Although each means is shown as a block in the embodiment shown above, actual operation by collective processing of each functional block by the CPU is effective. Although the description has been given based on the situation of G3, the same applies to the development of G4 and is effective for all communication devices. Although the number of sheets printed on one sheet is 4 or 9, the number of sheets to be printed can be changed by changing the printing direction by speeding up the encoding process or increasing the number of storage devices.

[0011]

According to the present invention, it is possible to reduce the number of sheets of paper used in a communication device such as a facsimile and to obtain higher quality output.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an embodiment of the present invention.

FIG. 3 is an explanatory diagram of another embodiment of the present invention.

FIG. 4 is a flowchart for explaining the present invention.

[Explanation of symbols]

 101 NCU 103 Modem 104 Encoding Means 107 Control Unit 108 Storage Means 109 Printing Means 110 Scanner Means 112 Reducing Means

Claims (2)

[Claims] 1. A communication device for communicating image data with a partner terminal via a telephone line, comprising: an encoding means and a storage means, and stores received code information in a compressed state in the storage means. Further, the communication device is characterized in that the number of received sheets is detected, and a plurality of pieces of data are arranged and printed on one sheet according to the number of sheets received. 2. A communication device having the above means, which has an encoding means, a storage means, and a reduction means, and performs resolution conversion of received data according to the resolution of the printer and the data for the number of sheets to be printed in one sheet. A communication device characterized by printing.