JPH01218264A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To make unnecessary measures against retransmission by storing a picture signal into a memory and saving it even when the insufficiency of the residual quantity of recording papers for the recording of the picture signal is detected during the receiving of the picture signal with facsimile equipment. CONSTITUTION:A head driving part 5 drives a printing head 1, and prints the received picture on a recording paper 2. A sensor 3 is provided at the roll of the recording paper 2. When the quantity of the recording papers 2 is sufficient, the sensor 3 detects a white, and outputs a signal L. When the quantity of the recording papers 2 decreases to the prescribed quantity, since a black line is added to a rear surface, the sensor 3 detects the black line, outputs a signal H, and inputs it to a control part 4. During the L level, the control part 4 prints by means of a head driving part 5, and stores the received picture to a picture signal memory 6. When the sensor 3 outputs the signal H, the printing is stopped, while, the picture signal is inputted and saved, and after the receipt is completed, the memory 6 is read and recorded. Thus, the interruption of the receipt is prevented, and the measures against the retransmission is made unnecessary.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) This invention relates to an improvement in a facsimile machine.

(Prior Art) Conventionally, facsimile machines have adopted a method of interrupting communication when the remaining amount of recording paper becomes insufficient for recording based on image signals.

For this reason, when communication is interrupted due to insufficient amount of recording paper, it becomes necessary to request the sending side to resend the data, which poses a problem of placing a burden on the sending side. In addition, it takes time on the receiving side to check from which page of the received document the page has not been received and to notify the sending side, which makes it inconvenient to use.

(Problem to be Solved by the Invention) As mentioned above, in conventional facsimile machines, communication is interrupted when the remaining amount of recording paper becomes insufficient for recording based on image signals. Therefore, it is necessary to take measures for retransmission on the transmitting side and the receiving side, which poses a problem of being cumbersome and inconvenient to use.

The present invention has been made to solve the problems of conventional facsimile machines, and its purpose is to make it easy to use, without interrupting communication when there is insufficient recording paper remaining, and making it easy to deal with the problem afterwards. Our goal is to provide quality facsimile equipment.

[Structure of the Invention] (Means for Solving the Problem) The present invention includes a recording paper detection means for detecting whether the remaining amount of recording paper is sufficient for recording based on an image signal, and The image signal memory to be stored and the input image signal are stored in the image signal memory, and the recording paper detecting means detects when the remaining amount of recording is insufficient while performing a recording operation based on the image signal. The facsimile apparatus is provided with a shelter control means which, when it detects that the facsimile apparatus is in use, causes the input image signal to continue to be saved in the image signal memory.

(Function) According to the above configuration, when the remaining amount of recording paper becomes insufficient for recording based on image signals, the operation of storing the input image signals in the image signal memory continues. Since it is evacuated, it is possible to perform recording based on the evacuated image signal after replacing the recording paper without interrupting reception.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of one embodiment of the present invention. In the figure, 1 indicates a print head, and the print head 1 performs recording on a recording paper 2 based on image signals indicating black and white pixels. A sensor 3 is provided in the area where the recording paper 2 is set, and when the sensor 3' detects "white", it outputs an L level signal, and when "white" cannot be detected, it outputs an L level signal. Outputs an H level signal. When the remaining amount of recording paper 2 becomes small (a predetermined length), it emits "black" light to the sensor 3.
There is a black line on the back. The output signal of the sensor 3 is given to the control section 4. The control unit 4 receives binary image signals corresponding to black and white pixels from means not shown, and if the signal provided by the sensor 3 is at L level, stores the image signal in the image signal memory 6 and also sends the image signal to the head drive unit. 5, and if the signal provided from the sensor 3 is at H level, the image signal is simply stored in the image signal memory 6. in this way,
The sensor 3 constitutes recording paper detection means, and the control section 4 constitutes evacuation control means. According to such a configuration, the recording paper 2
As long as the remaining amount is sufficient and no black line appears on the back side,
The control unit 4 sends the image signal, which has been stored in the image signal memory 6, to the head drive unit 5 for recording. Furthermore, when the remaining amount of the recording paper 2 is insufficient and a black line appears on the back side, the sensor 3 outputs an H-level signal, and the control unit 4 can eject the image signal by only storing the image signal. This is done for memory 6.

Next, FIG. 2 shows the actual configuration of the facsimile machine.

In the figure, 10 indicates a CPU, and this CPU10 performs overall control of each section based on the program in the main memo January 1. This CPU10 is connected to the NC via bus 12.
LJ (network control device) 13, black dem 14, operation panel 1
5, encoding/decoding section 16, image signal memory, recording section 18
It is connected to the. The NCU 13 activates and restores the network via the line 19, and the modem 14 modulates and demodulates signals. Necessary data is input from the device panel 15, and necessary displays are displayed on a display (not shown) within the operation panel 15. The encoding/decoding unit 16 encodes and compresses a binary image signal corresponding to black and white using the MH method, MR method, etc., and decodes and expands it vice versa. Image signals are stored in the image signal memory 17 as needed. The recording unit 18 corresponds to the print head 1° recording paper 2 and head drive unit 5 in FIG. 1, and performs recording based on binary image signals. The fact that the sensor 3 is provided in the recording section 18 is the same as in the case of FIG.
The output of is given to cpu io.

When such a facsimile machine receives a call and answers it (the operation so far is the same as the known one), line 1
The image signal arrives at the NCU 13 via 9. This image signal is sent from the NCtJ 13 to the modem 14, where it is demodulated. On the other hand, the CPU 10 operates according to a flowchart program stored in the main memory 11 as shown in FIG. That is, the CPU io monitors the reception of image signals via the modem 14 (101).

When the image signal is received, CPLJlo sends the image signal corresponding to one line to the modem 14, demodulates it, obtains the demodulated image signal, and stores it in the image signal memory 17 (102).

Along with this, the CPLIIO detects whether the remaining amount of recording paper 2 is insufficient based on the signal given from the sensor 3 (103).
), if the image signal is not insufficient, the image signal stored in the image signal memory 17 is sent to the encoding/decoding section 16, where it is decoded and expanded, and the obtained binary image signal is sent to the recording section 18 for printing. (104). On the other hand, when it is detected in step 103 that the remaining amount of recording paper 2 is insufficient, the operation of sending and storing the demodulated image signal to the image signal memory 17 is continued to save the image signal (105). And CPU1
0 indicates whether the image signal is no longer being received via the modem 14 (106), and if it is being received, step 1 is executed.
The operations from step 02 to step 105 are continued, and the series of operations ends when the image signal reception is completed.

According to this embodiment, when an image signal is received when the remaining amount of the recording paper 2 is insufficient, this image signal is saved in the image signal memory 17, so that the communication is not relayed and the recording paper After replacing 2, it is possible to record and output. for example,
When the image signal is evacuated when the remaining amount of recording paper 2 is insufficient, the CPU 10 displays this on a display (not shown) on the operation panel 15, and displays an input button (not shown) on the operation panel 15 after replacing the recording paper 2. - When it is detected that a recording/output instruction has been input, the image signal related to evacuation is read out from the image signal memory and sent to the recording section 18 for recording and outputting.

In this embodiment, the lack of remaining recording paper was detected by detecting the black line. good. Furthermore, the image signal is not limited to the received one, but also the one obtained by the reading section (not shown) of the own device in copy mode etc.
The control shown in FIG. 3 may also be performed. In addition, when saving the data in the image signal memory, the data may be saved after being decoded and expanded. In this way, processing can be performed quickly during recording and output.

[Effects of the Invention] As explained above, according to the present invention, when the remaining amount of recording paper becomes insufficient for recording based on image signals, input image signals are stored in the image signal memory. Since the storing operation is continuously evacuated, there is no interruption in reception.
There is no need to take measures for subsequent retransmission on the sending and receiving sides, and usability is greatly improved.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a block diagram of main parts specifically showing an embodiment of the invention, and Fig. 3 explains the operation of an embodiment of the invention. This is a flowchart for 1...Print head 2...Recording paper 3...Sensor 4...Control unit 5...Head drive unit 6...
・Image signal memory 10...CPU 11...
Main memory 13...NCU 14...Modem 15...Operation panel 16...Encoding/decoding section 1
7... Image signal memory 18... Recording section 19... Line agent Patent attorney Book 1) Takashi Figure 2

Claims (1)

[Claims] A recording paper detection means for detecting whether the remaining amount of recording paper is sufficient for recording based on the image signal, an image signal memory in which the image signal is stored, and an image signal memory for storing the input image signal. When the recording paper detecting means detects that the remaining amount of recording becomes insufficient while performing a recording operation based on this image signal, the input image signal is stored in the image signal memory. A facsimile machine comprising a shelter control means for continuously sheltering the operation.