JPS6346632B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a facsimile transmitter that allows messages to be exchanged without any inconvenience even between facsimile machines of different models.

In the past, facsimile communication was limited to devices of the same model, so things that did not pose a problem have recently become problematic as facsimile communication has started to occur even between different models. .

For example, the difference between the original size and the recording paper size is one of them.

In other words, in the case of the same model, the original size to be set on the sending side and the recording paper size to be set on the receiving side are predetermined, and the receiving side can set the original size according to the original size on the sending side. However, in the case of different models, for example, if the receiving side is a fixed-length recording paper machine and the sending side is an undefined-length original transmitter,
When an original document larger than the maximum recording paper size on the receiving side is set on the sending side, information is missing on the receiving side, resulting in a problem that a satisfactory copy of the original on the sending side cannot be obtained.

The present invention has been made to address the above-mentioned problems, and is a facsimile transmitter that allows the receiving side to obtain a copy of a transmitted document without missing any information, even if the model is different, without any modification of the receiving side device. The purpose is to provide

In order to achieve this objective, the present invention, when sending an original larger than the recording paper size to the receiving side from the transmitting side, notifies the receiving side that image information will be sent for each recording paper size, as if a predetermined number of originals of recording paper size were to be sent. The facsimile transmitter is configured to transmit the information.

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 is a block diagram of a facsimile transmitter showing an embodiment of the present invention, and 1 is a network control device.
NCU, 2 is modem, 3 is facsimile control unit,
4 is a stepper pulse generation circuit that intermittently generates pulses under the control of the facsimile control section 3;
1 is a stepper pulse drive circuit, 6 is a stepper motor that feeds the document in the sub-scanning direction, 7 is a counting circuit that counts stepper pulses P to detect the amount of document feed, and 8 is a circuit that presets the recording paper size. A preset register 9 for storage is a match detection circuit that compares the count value of the counting circuit 7 and the preset value of the preset register 8, and outputs a match signal C when they match.

Next, the operation will be explained with reference to the control procedure flow diagram of FIG.

The sending side sets the original and calls the receiving side.

The receiving side responds to the request as shown in Figure 2.
Sends a 2100 Hz single tone called party confirmation activity (CED) signal. The secondary modem is then used to send out an NSF or DIS code indicating receiving capability.

This code contains information regarding the length of recording paper that can be set on the receiving side, for example A3, A4, A5...
etc., so when the transmitting side receives that code, it outputs a set pulse S from the facsimile control unit 3 in FIG. On the other hand, in order to instruct the receiving side to set A3 size recording paper, it is sent along with other setting mode information.
Send NSS code. At this time, the counting circuit 7 is reset by a reset pulse simultaneously outputted from the facsimile control section 3.

The sender then uses the main modem to perform modem training, and if the modem training is successful, the receiver sends a CFR code to notify the sender of the results.

Based on this, the sending side starts reading the document and starts sending image information. That is, the facsimile control section 3 outputs the signal b to operate the stepper pulse generation circuit 4. The stepper pulse generation circuit generates a document feed pulse P and outputs it to the stepper motor drive circuit 5 and the counting circuit 7. The stepper motor drive circuit 5 is a stepper motor 6
to feed the document in the sub-scanning direction.

The document feeding amount at this time is recorded in the counting circuit 7 by counting the feeding pulses P.

The facsimile control unit 3 controls a reading device data compression device (not shown) to encode the read image information and send it to the receiving side via the main modem.

At this time, a signal a indicating that the document exists at the reading position is input to the facsimile control unit 3 from a document sensor (not shown).

Therefore, while the signal a is being input, the counting circuit 7
When the count value matches the preset value preset in the preset register 8 and the coincidence signal c is input from the coincidence detection circuit 9 to the facsimile control section 3, the facsimile control section 3 temporarily stops reading the document and starts the secondary using a modem,
The MPS code is sent to inform the receiving side that the next document will be sent in the same transmission mode. Also,
At this time, the facsimile control section 3 outputs signals r and s.
is output to reset the counting circuit 7 and set the recording paper A3 size in the preset register 8 again. Here, the reason why the recording paper size is set again in the preset register 8 is to simplify the program in the facsimile control section.If the recording paper size to be set is not changed, of course the value of the preset register 8 will remain unchanged during that time. You can leave it set.

On the receiving side, when the MPS code is detected, it performs the same process as when an A3 size original is sent from the same model, sets the next A3 recording paper, and uses the secondary modem.
Sends the MCF code to notify the sending side that the image information has been correctly received.

When the sending side detects the MCF code, it resumes reading the document from the position where it was previously interrupted, and sends an A3 size document to the receiving side.

The sending side repeats these operations, and when all the set originals have been read, the signal a from the original sensor turns off, and the facsimile control unit 3 detects this and ends the transmission.

In this way, even if the sending side is an undefined length document transmitter and the receiving side is a fixed paper receiver, documents of arbitrary length can be successfully sent from the sending side to the receiving side without missing any information. be able to. In this case, depending on the state of the document on the sending side, switching between sending the first page and sending the second page may occur while reading the characters, and the characters may be separated, but on the receiving side, By looking at the first received paper and the second received paper together, it is possible to obtain a copy of the original without missing any information.

It goes without saying that when the sending side sends a document, the recording paper size instructed to the receiving side is not limited to the receiving side's maximum recording paper size, but any size prepared on the receiving side can be specified.

Further, it goes without saying that the facsimile control section 3, counting circuit 7, preset register 8, coincidence detection circuit 9, etc. in the above embodiment can be constructed using a CPU, ROM, and RAM.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a facsimile transmitter according to an embodiment of the present invention, and FIG. 2 is a flow diagram showing an example of a control procedure during facsimile communication. DESCRIPTION OF SYMBOLS 1... Network control device, 2... Modem, 3... Facsimile control unit, 4... Stepper pulse generation circuit, 5... Stepper motor drive circuit, 6... Stepper motor, 7... Counting circuit, 8...Preset register, 9... Match detection circuit.

Claims (1)

[Scope of Claims] 1. In a facsimile transmitter that reads a document and sends out image information, a preset means for presetting a receiving side recording paper size, a feed amount detection means for detecting the amount of document feed, and the preset means a coincidence detection means for detecting a coincidence between a set value set in the feed amount and the feed amount detected by the feed amount detection means; and a coincidence detection means that temporarily suspends reading of the document every time a coincidence is detected by the coincidence detection means; A facsimile transmitter comprising facsimile control means for resetting the feed amount detection means and restarting reading of the original after notifying the receiving side that the next page of the original has been sent.