JPH0773334B2 - Information processing equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus, and in particular, a blank area of a document received from a facsimile (hereinafter referred to as "FAX") is deleted as appropriate to obtain an optimum printing paper size and reduction ratio. The present invention relates to an information processing device that performs printing with the above print quality.

2. Description of the Related Art Since a dot density is different between when a document created by a communication device having a document editing function is output to a printer and when it is sent to a facsimile, the size of an output image is different. For this reason, conventionally, an image is reduced and output at the time of output. Hereinafter, this will be specifically described.

For example, in a word processor that has a communication function with GIIIFAX, when printing a document created with the document creation function with a normal printer, the character code
0dpi) and print. In addition, the created document is FA
When transmitting to X, the above image data is converted into a compressed code and transmitted.

Here, the problems are as follows.

(1) With a general GIII FAX, the dot density when reading a document is 200 dpi. Therefore, print image data can be
The amount of data is reduced when sending to the
The image output at is smaller than the image printed at the transmission side.

On the other hand, when printing an image received from a fax with a printer, a fax document of about 1.2 times the size of the fax document on the sending side is output. Therefore, when an image corresponding to A4 paper is received, it cannot be output in A4 paper during reception printing.
In order to solve this problem, processing such as reduction must be performed. However, reducing the size leads to a reduction in print quality.

(2) Another point is that the area to be read is the entire area of the document. On the other hand, the print start position of the printing apparatus is generally provided with a predetermined margin around the print position.

Therefore, as shown in FIG. 4, the A4 size transmission original (a) is irrespective of whether the enlargement described in (1) is present or not.
It cannot be received on A4 size paper. In the case where the portion shown by the broken line in FIG. 4 (b) and shaded in the lower right is printed at the same size, the case in which the portion shown by the solid line and shaded in the upper right is printed in an enlarged state, Shown respectively.

It should be noted that FIG. 4 (c) shows a state in which an A4 size document is reduced by 0.8 times and printed, and the entire document is accommodated within A4 size paper (hatched portion). The print quality is reduced by the reduced amount.

The present invention has been made in view of the above circumstances, and an object thereof is to solve the above-described problems in the conventional document creating apparatus, and automatically detect the blank area of the document received from the fax. An object of the present invention is to provide an information processing apparatus that can eliminate unnecessary margins, reduce the reduction rate, and maintain the print quality as high as possible.

Configuration The above object of the present invention is, in an information processing apparatus having a function of transmitting and receiving a document to and from a fax, a means for detecting a margin on a document received from a fax and a means for calculating an image size by removing the margin, Also, the present invention is achieved by an information processing apparatus characterized in that a means for printing is provided so that an image size becomes maximum within a range of a predetermined reduction rate.

Hereinafter, the configuration of the present invention will be described in more detail based on examples.

FIG. 1 is a functional block diagram of an information processing apparatus showing an embodiment of the present invention. In the figure, 1 is a communication processing unit having a function of taking compressed code data from a telephone line or the like, 2 is a compressed code storage unit for temporarily storing the data in a storage device such as a disk, and 3 is the conversion of the code data into image data. The image data conversion units 4 and 4 indicate a margin detection unit that calculates the margins in the vertical and horizontal directions.

Further, 5 is a margin deletion unit that deletes data only for the margin area calculated by the margin detection unit 4 and collects only the data actually required for printing, and 6 is an image size calculation for calculating the print data area at this time. If the size of the transmitted document is smaller than the size of the original to be transmitted, 7 is a reduction ratio calculation unit that calculates the reduction ratio, 8 is a reduction unit that reduces the reduction ratio determined by the calculation result of the reduction ratio calculation unit 7, and 9 is the printer 10. 2 shows a printing unit that controls the printing.

FIG. 3 is a diagram for explaining the operation of the margin detection unit 4, and FIG. 3 (a) is the number of upper margin lines (A) and lower margin as data necessary for detecting a margin from the received data. The meanings of the number of lines (C), the number of left margin dots (B), and the number of right margin dots (D) are shown. FIG. 3 (b) shows an example of a method for obtaining the size of each margin.

In the present embodiment, white data is searched in order from the beginning, and all white line numbers are extracted in the row direction and dot unit digit positions (left white digit, right white digit) are extracted in the digit direction. The extracted information is stored in the margin management table for each line as shown in FIG. 3 (b).

Number of top margin lines using the above margin management table (A)
The number of lower margin lines (C) is detected as follows. That is, it is determined whether each line is a blank line,
If it is a margin line, set the all white flag to "1". The number of upper margin lines (A) is obtained depending on how many white lines continue from the uppermost line. Similarly, the number of lower margin lines (C) is obtained by the number of white lines following the lowest line.

The number of left margin dots (B) and the number of right margin dots (D) are detected as follows. First, the image start digit is set by counting the digits until a black dot appears. The end digit of the image starts counting when a white dot appears and is reset when a black dot appears. At the last digit, the value of the right margin dot number (D) remains. To detect the left and right margins, an appropriate margin amount is calculated from the image start digit and the image start end digit of all lines.

FIG. 2 is a flow chart showing the main points of the operation of this embodiment. The operation of this embodiment will be described below based on this.

As described above, the image size calculation unit 6 obtains the number of upper margin lines (A), the number of lower margin lines (C), the number of left margin dots (B), and the number of right margin dots (D), and calculates the margin from this. The image size is calculated by the detection (step 11). If this size falls within the size of the transmission document that is separately transmitted from the transmission source (step 12), printing is immediately performed by the printing unit 9 in that size (step 1).
9).

If the image size does not fall within the size of the transmission document transmitted from the transmission source (step 12), in step 13, a reduction ratio for reducing the image in accordance with the currently used paper size of the apparatus is obtained. It is determined whether or not this reduction ratio is within 0.8 times (step 14). If the reduction ratio is 0.8 times or more, it is determined whether or not the current paper size is the maximum processing size of the device (step 15), and the maximum If it is not the processing size, the paper size is increased by one step (step 16) and the process returns to step 13.

If the reduction ratio is 0.8 or more in the determination in step 14, the above operation is repeated. When the reduction ratio is within 0.8 times, the image is reduced to the reduction ratio (step 18) and printing is performed (step 19). In step 15, if the paper has already reached the maximum processing size of the device,
Printing will be performed after knowing that the printing quality will deteriorate.

According to the above-described embodiment, the document received from the FAX is not simply printed as it is, but unnecessary portions such as margins are deleted, so that it is possible to print in a form close to the original document. is there.

In the above embodiment, the example in which the blank space is detected after the code data is expanded into the image data has been shown, but it is not always necessary to detect the blank space after the expansion into the image data. For example, in the case of the MH code, the upper and lower margin areas can be detected at the compression code level.

Effects As described above, according to the present invention, in an information processing apparatus having a function of transmitting / receiving a document to / from a FAX, a means for detecting a margin on a document received from a FAX and a margin are deleted to reduce an image size. Since the means for calculating and printing for maximizing the image size within the range of the predetermined reduction ratio are provided, the margin area of the document received from the fax is automatically detected and unnecessary margin It is possible to realize an information processing apparatus that can eliminate the above, reduce the reduction rate, and maintain the printing quality as high as possible.

[Brief description of drawings]

FIG. 1 is a functional block diagram of an information processing apparatus showing an embodiment of the present invention, FIG. 2 is a flow chart showing the main points of the operation of the present embodiment, and FIG. 3 is a diagram for explaining the operation of a blank space detecting section. , FIG. 4 is a diagram for explaining a problem in the conventional technique. 1: Communication processing unit, 2: Compressed code storage unit, 3: Image data conversion unit, 4: Margin detection unit, 5: Margin deletion unit, 6: Image size calculation unit, 7: Reduction ratio calculation unit, 8: Reduction unit , 9: printing department, 10: printer.

Claims (1)

[Claims] 1. An information processing apparatus having a function of transmitting / receiving a document to / from a facsimile, a means for detecting a margin on a document received from a facsimile, a means for deleting the margin and calculating an image size, and an image. An information processing apparatus, characterized in that a means for printing is provided so that the size becomes maximum within a range of a predetermined reduction ratio.