JPH0313174A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To freely perform compressive or enlarging copying by providing a copy magnification control means which executes the copying with a preset magnification upon judging the presence of the manual setting of a magnification. CONSTITUTION:On a keyboard 10, a magnification key 19 to command the manual setting of a copy magnification and a registration key 20 to input the copy magnification other than a transmission key 17 and a copy key 18, etc., are arranged. When the manual setting of the copy magnification is performed when a copy mode is selected, an original read with an original read means 2 is print-outputted with the preset magnification on recording paper. On the other hand, when no manual setting of copy magnification is performed, the original read with the original read means 2 is print-outputted on the recording paper with the magnification automatically set based on the size of the original and the recording paper. In such a way, the setting of the copy magnification can be performed with the setting means. Thereby, the compressive or enlarging copying performed in spite of the size of the original and the recording paper.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile machine having a copy function capable of reducing and enlarging in addition to a function of transmitting and receiving image data.

[Prior Art] When a conventional facsimile machine of this type selects a transmission mode, it outputs the image data of a document read line by line with an image sensor as serial data, converts it into parallel data, compresses it, and transmits it from a communication block to a telephone line. etc., to the receiving side.

Furthermore, when the reception mode is selected, the image data received by the communication block is decompressed, serially converted, and provided to the printing section, which drives the thermal head and prints out on thermal paper as recording paper.

On the other hand, when copy mode is selected, as shown in Figure 4, the size of the original is first detected by a sensor and the original size (A
4. B4. The copy magnification is automatically set as normal mode or reduced mode depending on the relationship between A3) and the preset recording paper size (A4°B4) such as thermal paper. In other words, if the document is A4, the normal mode of [A4-A4] (copy magnification 100%) is automatically set regardless of the recording paper size, and if both the document paper and the recording paper are B4, [B
4-84] Automatically set the normal mode (copy magnification 100%). On the other hand, if the original is 84 and the recording paper is A4, the reduction mode of [B4 → A4] (copy magnification 81%) is automatically set, and if the original is A3 and the recording paper is A4, the reduction mode is set [B4 → A4] (copy magnification 81%).
A3 → A4] (In copying magnification 7096) Automatically sets the reduction mode, and if the original is A3 and the recording paper is B4, [
A3→B4] (copy magnification 86%) is automatically set.

After that, one line of the document is read by the image sensor, and the read serial data is converted into parallel data. At this time, if the reduction mode is selected, reduction in the main scanning direction is performed. Next, the parallel-converted data is temporarily stored in the video RAM, and then serially converted and applied to the printing section, where it is printed out on thermal paper. Next, it is determined whether or not it is a reduction point in the sub-scanning direction, and if it is a reduction point, the document and thermal paper are fed n steps. Here, the number of steps n is determined by the contents of the reduction mode. That is, reduction in the sub-scanning direction is performed by performing n-step feeding. On the other hand, if it is not the reduction point, one step of feeding of the original and thermal paper is performed, one line of the original is read again by the image sensor, and the same process is repeated.

[Problems to be Solved by the Invention] However, as mentioned above, in conventional facsimile machines of this type, the copy magnification (normal mode - 100%, reduced mode -70,81°86%) were automatically determined. For this reason, the user cannot set the copying magnification regardless of the size of the document, and has the disadvantage of not being able to freely enlarge or reduce the document.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a facsimile machine that can manually set the copying magnification regardless of the size of the original or recording paper, and can freely perform reduction or enlargement copying.

[Means for Solving the Problems] The present invention has a document reading means, a printing means, a communication means, and a mode selection means for switching between a transmission mode, a reception mode, and a copy mode, and when the transmission mode is selected, the document reading means reads the document. When the reception mode is selected, the image data received by the communication means is printed out on recording paper via the printing means, and when the copy mode is selected, the image data of the original document read by the original reading means is transmitted. In a facsimile device that prints out image data on recording paper via a printing means, the manual setting means for copying magnification determines whether manual setting of the copying magnification is performed by the setting means when a copy mode is selected. A determining means, and if this determining means determines that there is no manual setting of the magnification, it executes copying at a copying magnification that is automatically set depending on the size of the original and recording paper, and if it determines that the magnification is manually set, it executes copying at the set magnification. and copy magnification control means for executing copying.

[Function] With a facsimile machine having such a configuration, when the copying magnification is manually set using the setting means when copy mode is selected, the original read by the original reading means is printed on recording paper at the set magnification. Output. On the other hand, if the copy magnification is not manually set, the original read by the original reading means is printed on recording paper at a magnification that is automatically set depending on the size of the original and the recording paper.

Therefore, by setting the copy magnification using the setting means, reduction or enlargement copying becomes possible regardless of the sizes of the original and recording paper.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of the facsimile machine of this embodiment, in which 1 is a CPU (central processing unit);
OM (Read Only Memory).

This is a control unit consisting of RAM (random access memory), l10 (input/output) board, etc. This control unit 1 includes a data processing circuit 3 that performs binarization of image data photoelectrically converted by an image sensor 2 that reads a document, and a data processing circuit 3 that performs printing on thermal paper as recording paper via a thermal head. Printer drive circuit 5 of printer 4
, a compression/expansion circuit 8 that compresses and expands data to a communication block 7 that transmits and receives image data to and from the other station via a public line 6, a video RAM 9 that temporarily stores image data to be copied, and a keyboard 10. a keyboard circuit 11 that inputs key signals, a display controller 13 that drives and controls a display unit 12 composed of a liquid crystal display and LEDs (light emitting diodes), a serial/parallel converter 14 that converts serial data into parallel data, a parallel A parallel/serial converter 15 that converts data into serial data is connected. The control unit 1 also controls the size of the document read by the image sensor 2 (A4
．． B4. A3) is adapted to receive a detection signal from a document sensor 16 that detects the document.

The keyboard 10 includes a transmission key 17 for instructing transmission of an original, a copy key 18 for instructing copying of an original, and a magnification key 19 for instructing manual setting of copy magnification and a copy magnification. A key used as a copy magnification manual setting means for a number key 20 for inputting is provided.

The control unit 1 has a mode selection means for switching between transmission mode, reception mode, and copy mode, and normally the reception mode is automatically selected and the transmission mode is selected in response to input from the transmission key 17. The copy mode is selected according to the input of the copy key 18.

When the copy mode is selected, the program is controlled to execute the flowcharts shown in FIGS. 2 to 4. That is, depending on the human power of the copy key 18, the second
When the flowchart shown in the figure is started, first, it is determined whether or not the copy magnification is manually set by the copy magnification manual setting means. If the copying magnification is input using the number key 20 and the magnification key 19, it is determined that the copying magnification has been manually set, it is determined that the magnification has been set, and the size of the thermal paper used as the recording paper is determined. investigate. Here, if the size of the thermal paper is inappropriate for the set magnification, the display unit 12
The user is notified by displaying and outputting a message indicating that the item is inappropriate.

Next, check the manually set copy magnification. Here, if the copy magnification is 100%, one line data of the document read by the image sensor 2 and subjected to data processing such as binarization by the data processing circuit 3 is transferred to the serial/parallel converter 1.
4 to standard parallel data and video RA
Temporarily stored in M9. Next, the data in the video RAMQ is read out, converted into serial data by the parallel-serial converter 15, and then transferred to the printer drive circuit 5.

Then, a strobe signal is output to cause the printer drive circuit 5 to print the latched data. After that, after one step feeding of the original and thermal paper,
The same routine is repeated starting from the reading process of one line of original data.

On the other hand, if the manually set copy magnification is other than 100%, the process advances to FIG. That is, after taking in one line data of a document that has been read by the image sensor 2 and subjected to data processing such as binarization processing in the data processing circuit 3, the set magnification is checked. And the setting magnification is 10
If it is less than 0%, it is determined that the data is in the reduction mode, and the serial-to-parallel converter 14 performs reduction in the main scanning direction and converts it into parallel data, which is temporarily stored in the video RAM 9. Next, the data in the video RAMQ is read out, converted into serial data by the parallel/serial converter 15, and then transferred to the printer drive circuit 5. Then, a strobe signal is output to cause the printer drive circuit 5 to print the latched data. Next, it is determined whether or not it is the reduction point in the sub-scanning direction. If the reduction point is the reduction point, n-step feeding of the original and thermal paper is performed, and if it is not the reduction point, one-step feeding of the original and thermal paper is performed. Let's do it. After that, one line of the document is read again by the image sensor and the same routine is repeated.

On the other hand, if the set magnification is greater than 100%, it is determined that the mode is enlargement, and the serial-parallel converter 14 enlarges the data in the main scanning direction, converts it into parallel data, and temporarily stores it in the video RAM 9. Next, the data in the video RAMQ is read out, converted into serial data by the parallel/serial converter 15, and then transferred to the printer drive circuit 5.

Then, a strobe signal is output to cause the printer drive circuit 5 to print the latched data.

Next, it is determined whether or not it is an enlargement point in the sub-scanning direction, and if it is an enlargement point, a strobe signal is output again to cause the printer drive circuit 5 to print the same data latched. That is, enlargement is performed in the sub-scanning direction. If it is not the enlargement point, one step of feeding the original and thermal paper is performed, one line of the original is read, and the same routine is repeated.

Further, if the manual magnification is not set, the process proceeds to FIG. 4. Then, the size of the document is detected by a document sensor 16, and the copy magnification is automatically set as a normal mode or a reduction mode depending on the size of the document and the relationship between the size and the size of the thermal paper set in advance. After that, the operation is the same as when it is determined that the reduction mode is set at the time of manual magnification setting.

In the facsimile apparatus of this embodiment configured in this way, the normal reception mode is selected, and when compressed image data is received in the communication block 7 in this state, the image data is compressed and expanded. The data is decompressed by the circuit 8, converted into serial data by the parallel/serial converter 15, and then transferred to the printer drive circuit 5. The printer 4 is then driven to print out the received image data on thermal paper.

On the other hand, when the transmission key 17 of the keyboard 10 is inputted, the transmission mode is selected, and the image sensor 2 reads the document and photoelectrically converts it. The image data of this document is then binarized by the data processing circuit 3 and output as serial data.

Furthermore, after being converted into parallel data by the serial/parallel converter 14 and compressed by the compression/expansion circuit 8,
The communication block 7 transmits the data to the other party via the public line 6.

Further, when a magnification is input using the number key 20 of the keyboard 10, then the magnification key 19 is inputted, and then the copy key 18 is inputted, a copy mode in which the copying magnification is manually set is selected.

Then, the image data is read line by line by the image sensor 2, and this one line of image data is serially read.
The parallel data is converted into parallel data in accordance with the set magnification entered manually by the parallel converter 14, and then temporarily stored in the video RAM 9. Further, the image data stored in the video RAM 9 is converted into serial data by the parallel/serial converter 15 and transferred to the printer drive circuit 5, which drives the printer 4 and prints out the data on thermal paper. In this case, if the manually set copying magnification is inappropriate for the size of the thermal paper, copying is executed while a warning message to that effect is displayed on the display section 12.

Further, when only the copy key 18 of the keyboard 10 is inputted, a copy mode in which the copy magnification is automatically set is selected. Then, the image data is read one line at a time by the image sensor 2, and this one line of image data is converted into parallel data by the serial/parallel converter 14 according to the magnification determined by the size of the original and the thermal paper. Thereafter, it is temporarily stored in the video RAM 9. Further, the image data stored in the video RAM 9 is converted into serial data by the parallel/serial converter 15 and transferred to the printer drive circuit 5, which drives the printer 4 and prints out the data on thermal paper.

As described above, according to this embodiment, by manually setting the copying magnification in advance using the number key 20 and the magnification key 19 placed on the island where the original is to be copied, the original can be enlarged or reduced at the manually set magnification. Copying is possible. Therefore, it becomes possible to freely set the copy magnification regardless of the sizes of the original and recording paper, and the versatility of the copying function of the facsimile device can be increased. Furthermore, since the document can be reduced freely, it has the advantage of saving recording paper.

In the above embodiment, the copy magnification was manually set using keys, but it goes without saying that setting means other than keys may be used. It goes without saying that various other modifications can be made without departing from the gist of the present invention.

[Effects of the Invention] As detailed above, according to the present invention, it is possible to manually set the copying magnification regardless of the size of the original or recording paper, and it is possible to freely perform reduction or enlargement copying. , it is possible to provide a facsimile device that can enhance the versatility of the copy function.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a facsimile apparatus according to an embodiment of the present invention, and FIGS. 2 to 4 are flowcharts showing operations when copy mode is selected in the embodiment. 1...1. Control unit, 2... Image sensor, 3.
...Data processing circuit, 4..Printer, 7..Communication block, 9..Video RAM, 16..Original sensor, 17..Transmission key 18..Copy key 19
...Magnification key 20...Number key

Claims (1)

[Claims] They each have an original reading means, a printing means, a communication means, and a mode selection means for switching between a transmission mode, a reception mode, and a copy mode, and when the transmission mode is selected, the image data of the original read by the original reading means is transmitted via the communication means. transmitting the image data, and when a reception mode is selected, prints out the image data received by the communication means on recording paper via the printing means,
In a facsimile machine that prints image data of a document read by the document reading device on recording paper via the printing device when the copy mode is selected, a manual setting device for copying magnification; a determining means for determining whether manual setting of the copy magnification is performed; and a copy magnification that is automatically set depending on the size of the original and the recording paper when the determining means determines that the manual setting of the magnification is not performed. 1. A facsimile apparatus comprising: copy magnification control means for executing a copy at a manual setting of the magnification, and executing the copy at the set magnification when determining whether the magnification is manually set.