KR920004380B1 - Copy method for bi-direction scarning fax - Google Patents

Abstract

A copy command code is stored in a memory (3), and then, the existence or absence of papers is confirmed. Then the state of text paper is checked, and then, a copying operation is performed, the end position of the text paper being sensed by means of first and second sensors (22)(24). Then the number of copies as stored in the memory (3) is compared with the counted number of copies as stored in a counter memory (2). If the two values are equal to each other, the text paper is ejected, while if the latter is smaller than the former, the copying operation is continued, until the two values become equal to each other. Then the text paper is ejected, and a checking finds to whether there remains another text paper to resume the copying operation.

Description

How to copy from a bidirectional scanning fax machine

1 is a device block diagram of the present invention.

2 is a cross-sectional view showing the structure of a manuscript bidirectional moving device of the present invention.

3A is a cross-sectional state diagram in the forward movement of an original according to the present invention.

Figure 3b is a cross-sectional state diagram in the reverse movement of the original by the present invention.

4 is a flowchart of a multiple sheet copy drive for the present invention.

* Explanation of symbols for main parts of the drawings

1: CPU 2: Copy count registration memory

3: Copy count registration storage memory 4: Operation panel

5: Reading position detection storage memory 6: End position detection storage memory

7: line interface unit 8: transmitter

9: receiver 10: edge, demodulator

11: rom 12: ram

13: Document 14: Feeder

15: separation rubber plate 17: supply roller

18: Manuscript guide, demodulation unit 19: Feeding roller

1, 20: plate roller 22: sensor

1, 24: Sensor 2, 26: Feed roller 2

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bidirectional scanning fax transmission apparatus. In particular, unlike a conventional fax apparatus which required a large amount of document storage memory, a bidirectional scanning fax apparatus is capable of making a plurality of copies without a memory. A multiple copy method.

In a conventional fax machine, when the state of an original to be transmitted is blurred, if it is simply transmitted, there is a case where the original density of the original on the receiving side is dimmed to an easily recognizable state. Therefore, in this case, if the copy function is selected while the original is placed on the fax machine, the copy function of the original by the thermal head is performed, and thus the copied original can be transmitted. When multiple copies of a document were desired in such a fax machine, only one insertion was made once and thus only one copy of the original was required.

The copy function in the above fax machine is very cumbersome, and in particular, the fax machine that required a large amount of document storage memory has a disadvantage in that only one copy is selected once for the copy function. The present invention is configured so that the original is moved in both directions with a single selection of the conventional simple copying function to be copied as many times as desired, which will be described in detail with the accompanying drawings.

1 is a block diagram of an apparatus according to the present invention. An operation panel section 4 for specifying the number of copies, a copy number registration storage memory 3 for registering the specified number of copies, a transmission section 8 for scanning originals in both directions (forward and reverse), and a document A counter storage memory (2) for scanning the number of copies while scanning in both directions, a read position detecting storage memory (5) for detecting and storing the read position of the original, and an end position detecting storage memory for detecting and storing the end of the original; The receiving unit 9 and the transmitted data are composed of modulated received data, the demodulator 10, and the RAM 12 therefor.

2 is a cross-sectional view showing the structure of the document bidirectional transfer device of the present invention, and FIG. 4 is a flow chart of the present invention. In the present invention, the user first selects a plurality of copies through the operation panel 4. When set, the device stores it in the copy number registration storage memory 3. Then, when the user commands the copying operation, the device rotates the separation rubber plate 15 and the roller 17 moving roller 1 (19) and the moving roller 2 (26) in the forward direction as shown in Figs. 2 and 3b. Only one original of the plurality of originals 13 placed on the zone 14 is moved forward through the original guide guide 18.

Of course, the device previously sets the copy number counter storage memory 2 to one. The apparatus detects whether the original is in the position position before reading starts by checking the detection sensors 1,2 (22) and 24 while continuously moving the original 13 in the forward direction. If this condition is detected (detection sensor 1 (22) is "on" from "off" state), the device reads the document and records it through the receiver, while continuing to check the detection sensor 2 (24) to check the document (13). Repeat reading and recording the manuscript, detecting whether the) is at the end position. If the end position of the document 13 is detected (detection sensor 2 (24) "on" to "off"), the document stops being read and recorded, the copy counter is increased by one, and then returned to the original operation state. .

After that, check the copy count counter storage memory (2) and if the number is even, check the detection sensors 1,2 (22) (24) by the transfer roller 1,2 (19) method as shown in FIG. 13) If the end of the detection is detected (detection sensor 1 (22) is turned "on" to "off"), copying stops after copying only one copy of the original by the above-described method. .

In the figure, reference numeral 15 denotes a multi-paper separator rubber plate of the original, 156 denotes a frame to which a separation rubber plate is attached, 21 denotes a fluorescent lamp for reading, and 23 and 25 denote upper and lower guides constituting the document transfer path.

As described above, according to the present invention, in the fax capable of bidirectional scanning, the feed path of the document is reversed and rotated so that the end position detection sensor of the original is installed, and the moving roller moves forward and backward according to these detection signals. With this configuration, copying is made during forward transfer, and when the end is detected, the copying is carried out by forward transfer again so that bidirectional copying is possible, so that a plurality of copies can be made without having a large original storage memory for storing originals. There is an advantage that can be done.

Claims (1)

In a fax machine without a large-capacity document storage memory, place an original (13) on the tray (14), set the number of copies, and then order the copy to be stored in the copy registration storage memory (3) to determine the existence of the document. If the copy function is stopped, the feed roller 17 moves in the forward direction and the copy count counter value is an odd number. If it is odd, only one document is moved in the forward direction through the document guide guide 18. (22) (24) checks the status of the original, and if it is not determined whether the original is in the read position, re-supply the original, and if determined, starts reading the original and makes a copy, then the sensor 1.2 (22) (24) If the end unit value of the document is not checked and the document is not firm, the document is read again, and if it is determined, the reading and copying are interrupted, and the copy quantity registration storage memory 3 and the copy are made. Comparing the number counter storage memory (2), if it is the same, the original is ejected in the forward direction, and if it is not equal, the copy number counter is increased by 1, and if the copy number counter value is odd or not, the moving roller 1.2 (14) (26) It is driven in the reverse direction and the document is transferred in the reverse direction, and the sensors 1.2 (22) and 24 check to detect the starting point of the original, and repeat the reading copy to detect the end unit of the original, and stop the reading and copying. Check the number of copies and compare the number of copies registered storage memory (3) and the number of copies counter storage memory (2). If the same is the same, the original is ejected. If there is an original, the next original is supplied through the feed roller. Is stopped, and if it is not the same, the transfer roller is moved forward to the forward direction, and the copying is repeated. How to Copy.

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