JPH0531437U - Equipment - Google Patents

Abstract

(57) [Summary] [Purpose] The user does not feel uneasy when sending a fax. In a facsimile apparatus including a reading unit 4 that scans a document and outputs black and white binary image data, and a display unit 6 that displays predetermined information, based on the image data from the reading unit 4. A display means 12 for scroll-displaying a document image is provided on the display section 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a facsimile machine, and more particularly to a facsimile machine that does not cause a user to feel uneasy when transmitting a facsimile.

[0002]

[Prior Art]

 Generally, in a facsimile apparatus, a document is scanned by a reading unit, the density of a document image is read pixel by pixel, converted into binary image data indicating white or black, and the image data is compressed by encoding or the like and modulated. After that, it is sent to the destination over the line.

[0003]

[Problems to be solved by the device]

 However, in the reading section, the brightness of the original image is photoelectrically detected, and when the detected value is above the standard, it is judged to be black, and when it is below the standard, it is judged to be white and binarized corresponding to these black and white. Image data is obtained. Therefore, if the standard of this brightness is between the brightness of the background color of the document and the brightness of the description information such as characters and figures, the document will be scanned correctly, but if not, it will be scanned as black or white. I will be taken.

For example, when transmitting an original in which characters and the like are written on colored paper and the ground color of the paper is darker than the reference brightness, the image data is transmitted as all black and the obtained image Turns black. On the contrary, when a character or the like is printed on a white paper with a predetermined color of ink and the color of the character or the like is brighter than the reference, the image data becomes all white and the obtained image becomes true white. ..

Therefore, when transmitting a manuscript using colored paper or a manuscript in which information is written with colored ink, the user may be concerned about whether the manuscript is correctly read.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a facsimile apparatus that does not cause anxiety to the user during facsimile transmission.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a facsimile apparatus including a reading unit for scanning a document to output black and white binary image data and a display unit for displaying predetermined information. Display means for scroll-displaying a document image is provided on the display section based on image data from the section.

[0008]

[Action]

 According to the above configuration, when the document is scanned and read by the reading unit, the read document image is displayed as it is on the display unit. Therefore, by looking at this display, it is possible to know whether the original image is not read as black or white, that is, whether the original is correctly read.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 2 shows a schematic configuration of the facsimile apparatus of this embodiment. In the figure, 1 is a main control unit consisting of a computer, 2 is a RAM for storing data, 3 is an operation unit for issuing various commands, 4 is a reading unit for scanning a document and obtaining binarized image data. Reference numeral 5 is a printing section for printing out the received data, 6 is a display section for displaying predetermined information such as the time at the time of standby and the FAX number of the sender at the time of reception, which is composed of a liquid crystal display. Reference numeral 7 is a CODEC that performs encoding / decoding, 8 is a modem that performs modulation / demodulation, 9 is an NCU as a network control unit, and 10 is a telephone line.

The reading unit 4 has a CCD image sensor which is provided along the main scanning direction of the document and photoelectrically detects the brightness of the document image, and a binarization circuit which binarizes an electric signal from the sensor. .. When there is a transmission command from the operation unit 3, the main control unit 1 forms an original image on the CCD image sensor to perform main scanning, and also sends the original in a direction orthogonal to this to perform sub scanning. Then, during this scanning, a signal is appropriately read from the CCD and converted into binary image data in which a white pixel is "0" and a black pixel is "1" by a binarizing circuit. Further, the image data thus obtained is converted into a run length code by the CODEC 7, modulated by the modem 8, and then sent by the NCU 9 to the receiving side facsimile on the line 10.

A problem here is whether or not the image data output from the reading unit 4 is all black or all white. In these cases, it is necessary to inform the user that the reading is defective. .. Therefore, in this embodiment, the display means 12 is provided as one of the control modes of the main controller 1. The display means 12 selectively drives the liquid crystal element of the liquid crystal display 6 (display section) based on the image data from the reading section 4 to reproduce the grayscale pattern of the original image on the display 6.

Therefore, as shown in FIG. 3, the liquid crystal display 6 is divided into a plurality of display rows l = ₀ to l ₀ for each liquid crystal element unit, and each display row l corresponds to the main scanning line m. When the original image is displayed, the entire original image can be displayed on the liquid crystal display 6. However, the liquid crystal display 6 has a standard display resolution of about 2 pieces / mm, while the facsimile resolution is about 8 pieces / mm in the sub-scanning direction, so an attempt is made to display the entire original image. Then, the liquid crystal display 6 needs to be about four times as large as the original A, which is not practical. Therefore, the display means 12 of this embodiment is designed to display a document image within a predetermined range with respect to the main scanning direction of the document A (for example, a quarter on the right end side of the document A in the width direction). ). Further, in the sub-scanning direction, the original image is scrolled and displayed in accordance with the scanning, so that the image from the current reading line m to several lines m-l ₀ before can be always displayed. There is.

Since the object of the present invention is not to see the document image as a whole but to know whether or not the received image is black and white, the background portion of the document A and the information are described. It suffices to be able to display even a part of the displayed part. In this sense, if the original image is scrolled and displayed as described above, the liquid crystal display 6 may be a small one, and in the present embodiment, an existing one that is normally equipped is used.

Next, the operation of this embodiment will be described in detail with reference to FIG. Here, as shown in FIG. 3, the reading line numbers along the sub-scanning direction of the original document are assumed to be m = 0, 1, ..., And the display line numbers of the liquid crystal display 6 are assumed to be 1 = ₀ to 10.

Now, when the facsimile transmission is started and the line m = 0 of the document is read by the reading unit 4 (step 13), the image data from the reading unit 4 is transmitted and the bottom line of the liquid crystal display 6 is sent. The original image of the line m = 0 is displayed at l = 0 (step 14). Next, when the next line of the document, that is, the line of m = 1 is read (step 15), the line number m is set as k, and whether the value of k is the displayable line l ₀ of the liquid crystal display 6 or more. Is determined (step 16). Here, if k is less than l ₀ , the already displayed display content of the reading line m = 0 minute is moved up by one line and displayed (step 17), whereby the empty bottom line l = 0. A line m = 1 minute original image is displayed on the screen (step 19). Then, it is determined whether or not the final line of the original has been read (step 20), and if the final line has not been read, the next line m = 2 is read and the above operation is repeated (steps 15 to 20). ).

In this way, the manuscript image for the line m = k which is read at any time is displayed on the bottom row l = 0 of the liquid crystal display 6, and is displayed on all the display rows of the display 6. Then, since the line m = k to be read next is equal to or larger than the displayable line l ₀ (step 16), the display content of the uppermost line l ₀ is cut off in step 18, and the subsequent lines l = l ₀ -1 to ₀ . The contents of is displayed one line at a time, and the bottom line l = 0 is opened. Then, the manuscript image for the line m = k that has just been read is displayed in the empty bottom row l = 0 (step 19), and this is repeated until the last line of the manuscript is read (step 19). 15-20). That is, put out every time the document A is read one line m = k, it previously several lines m = k-1~k-l ₀ min document image read one line at a time elevated view and vacated by this A newly read document image for one line m 1 = k is added to the bottom row l = 0.

Then, when the final line of the document A is read and it is determined Yes in step 20, it is determined whether or not there is a next page of the document (step 21), and if not, the process ends as it is. If there is the next manuscript, the page is changed and the display is cleared (step 22), and the process returns to step 13.

As described above, in this embodiment, the original image from the reading line m by the reading unit 4 to several lines m −l ₀ is always displayed, and the grayscale pattern of the original image, that is, the received image is displayed on the liquid crystal display 6. It is re-rolled and reproduced.

Therefore, the user can see whether or not the manuscript is read as black or white, that is, whether or not it is correctly read, by looking at the display 6, and there is no fear of feeling when sending. Absent.

Moreover, by scroll-displaying the document image, the reading state of the document can be reliably determined even if the liquid crystal display 6 already installed in the facsimile apparatus is used. Originally, as a display device for displaying the original image, there is no problem as long as it is large enough to display the entire original image. However, preparing a large display separately has many problems in terms of cost and handleability. If the existing liquid crystal display 6 is used as described above, such a new problem does not occur.

Although the liquid crystal display is used as the display unit 6 in the above embodiment, other display devices may be used. Further, in the above-described embodiment, the facsimile apparatus that directly transmits the image data from the reading unit 4 has been described, but the present invention can also be applied to a facsimile apparatus that temporarily stores the image data in the image memory and appropriately reads and transmits the image data. In this case, the original image can be scrolled and displayed before transmission, and it is possible to know in advance whether the received image will be black or white.

[0023]

[Effect of the device]

 In short, according to the present invention, since the display unit for scrolling and displaying the document image on the display unit based on the image data from the reading unit is provided, the user can confirm whether or not the document is correctly read. This makes it possible to send faxes without any trouble.

[Brief description of drawings]

FIG. 1 is a flowchart showing a control means applied to an embodiment of a facsimile apparatus of the present invention.

FIG. 2 is a block diagram showing an embodiment of a facsimile device of the present invention.

FIG. 3 is a diagram showing a reading line of a document in the sub-scanning direction and a display line of a display unit.

[Explanation of symbols]

 1 main control unit 3 operation unit 4 reading unit 6 liquid crystal display (display unit) 10 telephone line 12 display means

Claims (1)

[Scope of utility model registration request] 1. A facsimile apparatus comprising a reading unit for scanning a document to output black and white binary image data, and a display unit for displaying predetermined information, wherein a facsimile unit is provided based on the image data from the reading unit. A facsimile apparatus comprising display means for scroll-displaying a document image on the display section.