JPS63202176A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To use a receiver-side facsimile equipment effectively while eliminating the use of a useless line by judging it as the generation of an original jam when a transmitter sends a line of the same pattern image consecutively and when a receiver receives the line of the same pattern image consecutively to apply error processing immediately respectively. CONSTITUTION:A CPU 2 controls the entire facsimile equipment to apply encoding/decoding of image data. Moreover, a CPU 2 at the sender side detects it when the same line of the same image pattern is sent for prescribed numbers consecutively, the error processing as the original jam is applied to warn it to the user. The prescribed numbers differ from the case with a full white image pattern and from the other case. When the CPU 2 at the receiver side detects it in receiving the prescribed number of same lines in the same image pattern consecutively, the error processing as the original jam is warned to the user. The prescribed numbers are set in response to the halftone/binary value of a communication mode or the fine/standard of the communication mode.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a facsimile device.

[Prior Art] In a conventional facsimile machine, when a document jam occurs on the transmitting side, the movement of the transmitted document stops midway, and images at the same position in the transmitted document are repeatedly transmitted.

On the other hand, the above-mentioned conventional facsimile machine can
A long document timer such as 6 minutes is installed, and an alarm is generated when the transmission/reception of one page exceeds 8 minutes or 16 minutes, regardless of the image reading status or reception status, and an error stop is performed. There is.

That is, on the transmitting side, the document is transmitted with the original jammed as described above for 8 minutes or 16 minutes. Furthermore, when transmitting in halftone mode, even if no jam occurs, it may take approximately 20 minutes to transmit an A4 document, and in this case the long timer is set to 32 minutes. Therefore, if a document jam occurs in halftone mode,
There are times when the jam will be sent for as long as 32 minutes.

In addition, if a document jam occurs on the sending side, the receiving side will receive the original jammed as described above for 8 minutes or 16 minutes, and if it is sent and received in halftone mode, 3.
Sometimes I receive jams for as long as 2 minutes.

[Problems to be Solved by the Invention] In the conventional device described above, when a document jam occurs, the jam transmission may be performed for a long time until the time set by the long timer expires, which wastes line usage charges. There is a problem with doing so.

In addition, when a document jam occurs in the conventional device described above, the jam may be received for a long time until the time set by the long timer ends, and the receiving facsimile machine cannot be used effectively during the jam reception. There is a problem.

[Means for Solving the Problem] The present invention determines that a document jam has occurred when the transmitter of a facsimile machine successively transmits lines of the same pattern image, and at this time, performs error processing and , to warn the user.

Furthermore, the present invention determines that a document jam has occurred on the sending side when the receiver of the facsimile machine receives consecutive lines of the same pattern image, handles the error at this time, and warns the user. It is something to do.

[Function] The present invention determines that a document jam has occurred when the transmitter of a facsimile machine continuously transmits lines of the same pattern image, and performs error processing at this time. , error processing is performed immediately, eliminating the need to pay unnecessary line usage fees.

According to the present invention, when the facsimile receiver continuously receives lines of the same pattern image, it is determined that a document jam has occurred on the sending side, and an error process is performed at this time. Error processing is immediately performed, and the receiving facsimile machine can be used effectively after the document jam occurs.

[Example] FIG. 1 is a block diagram showing one embodiment of the present invention.

In FIG. 1, a crystal oscillator l generates a reference clock for the entire device, and this clock is input to a CPU (central processing unit 21t) consisting of a microprocessor, etc.
2 as a quasi-clock. The CPU 2 uses the data bus and the address bus to access the ROM 3 and RAM.
4, Timer 5, PPI (Programmable Parallel
10) 6.7.1O1UPI (Peripheral CPU) 9.11
．． It is connected to 12. The CPU 2 controls the entire facsimile machine, and also encodes image data.
This is for decoding.

Further, the CPU 2 on the transmitting side includes a duplicate signal transmission detection means for detecting that a predetermined number of the same lines in the same image pattern have been transmitted consecutively, and a duplicate signal transmission detection means that detects when the same line has been transmitted for a predetermined number in succession in the original document. This is an example of an error processing means that performs error processing as a jam, and a warning means that warns the user when the same line is transmitted a predetermined number of times in succession.

Further, the CPU 2 on the reception side includes a duplicate signal reception detection means for detecting that a predetermined number of the same lines in the same image pattern have been consecutively received, and a duplicate signal reception detection means that detects when the same line has been received for a predetermined number in a row in the same image pattern. This is an example of an error processing means that performs error processing as a jam, and a warning means that warns the user when the same line is received a predetermined number of times in succession.

The UPI 9 controls the driving of originals and recording paper. In addition, UPI 11 is a parallel serial converter 2
5. Controls the recording system of the thermal radar, and the UPI 12 is the key manual switch 31 and the liquid crystal display L.
This is for displaying the CD32.

The modem 14 modulates and demodulates image data and transmits and receives procedure signals for facsimile communication procedures, and the network handling unit (NCU) 15 switches the line to the telephone 34 side or the modem 14 side. be.

The dialer 16 sends a dial signal to the line in response to telephone number data of the communication device output from the CPU 2 via the PP17.

In addition, a relay 8, a speaker drive circuit 18, a speaker 19, and an analog-to-digital converter 21 are provided.

FIG. 2 is a flowchart showing the transmission operation of the above embodiment.

First, perform the pre-transmission procedure (Sl), perform the image transmission, perform the post-transmission procedure, and turn off (32.93,
S4).

FIG. 3 is a flowchart showing the receiving operation in the above embodiment.

A pre-reception procedure is performed, an image is received, a post-reception procedure is performed, and the device is turned off (S5, S6, S7, S8).

FIG. 4 is a flowchart showing details of the image sending operation (S2) in the above embodiment.

First, for each of the fine mode and halftone mode, initialize the line counter value (ERR) that determines that a document jam has occurred and an error has occurred (S
11. S12. S14.315, S16.517), for example, if A is 600 lines and the judgment value for the mode without halftone in standard mode (the value of the line counter that determines that an error occurs when a document jam occurs), The judgment value B for tone mode is 200 lines, the judgment value C for fine mode without halftone mode is 1200 lines, and the judgment value B for fine mode and halftone mode is 400 lines.

Next, the value E is set to the error judgment value (ERRW) of the document jam line counter in the case of a blank space. For example, if the value of E is 2400 lines, S l 8),
Manuscript jam line call; set JMCNT to rQJ (S19).

And I want to send a line (520), not a long one (S
21), l, if the manuscript is not finished (S22)
, determine whether it is the same as the previous line (S23)
, i'iJ, there is no document jam, so the document jam line counter JMCNT is reset to O (524) and the next line is transmitted.

On the other hand, if the data is the same as the previous line even though the original has not finished (323), the value of the j; q original jam line counter JMCNT is incremented by 1 and set to 5.
25) If it is not a margin line (S26), unless the value of the document jam line counter JMCNT is equal to or greater than the value of the all-white jam counter ERRW (S28), the above operations are repeated.

If the data is the same as the previous line even though it is not a margin line, and the value of the document jam line counter JMCNT exceeds the value of the margin jam counter (328),
Perform error processing and turn off (S29, 530). On the other hand, if the data is the same as the previous line but it is a margin line (326), the document jam line counter JMCNT
If the value of is equal to or greater than the all-white jam counter ERRW (S
27), performs error processing and turns off (S29, 33)
9).

On the other hand, after sending the l-line (520), if the item is long (321), error processing is performed and the message is turned off (531.5).
32), if it is not a long document and the manuscript is finished (5
22), return (S33).

In the above operation, if a predetermined number of lines have the same data as the previous line, error processing is immediately performed (S29
), the jam transmission will be stopped in a shorter time than the time set by the long timer.

FIG. 5 is a flowchart showing details of image reception (S6) in the above embodiment.

The operations shown in FIG. 5 are basically the same as the image transmission operations shown in FIG. 4, and correspond to the operations shown in the steps shown in FIG. 5 with the dashes removed.

Then, if you change "transmission" to "reception" in Figure 4,
The operation is similar to that shown in FIG.

However, in the receiving operation shown in FIG. 5, the receiving side receives halftone bit information included in the NSS (non-standard function setting signal), and this receiving side stores the halftone bit information in the memory. S12°, 315'
In step 2, it is determined whether the CPU 2 is in the halftone mode.

On the other hand, in the case of image transmission shown in FIG. 4, the CPU 2 determines whether or not it is the halftone mode by detecting the operation of the key switch 31 (S12.
).

FIG. 6 is a diagram showing details of the pre-reception procedure (S5) in the above embodiment.

The operation shown in FIG. 6 is an operation according to the CCITT standard.

Send CHD 540), NSS, C3I, DIS 541), if the command is not received (S4
2) If the T2 time exceeds and the T1 time exceeds (S43.544), turn off (S45);
If the command is received (S42), N5F-DIS data including the halftone flag is stored (346), training and TCP are received and if the TCP is good (S42)
47.548), sends CFR and returns (S4
9.551), if TCF is not good (548), F
Send TT and receive command.

A judgment is made (S50, 542).

In S46 in FIG. 6, N
SS is received, and based on this halftone flag, it is determined whether the mode is halftone mode (S l 2
°, 315').

[Effects of the Invention] According to the present invention, error processing is immediately performed on the sending side after a document jam occurs, and there is no need to pay unnecessary line usage charges.

According to the present invention, error processing is immediately performed on the receiving side after a document jam occurs, and the receiving side facsimile device can be used effectively after the document jam occurs.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a flowchart showing the transmission operation in the above embodiment. FIG. 3 is a flowchart showing the receiving operation in the above embodiment. FIGS. 4(1) and 4(2) are flowcharts showing details of the image transmission operation (S6) in the above embodiment. FIGS. 5(X) and 5(2) are flowcharts showing details of the image receiving operation (S6) in the above embodiment. FIG. 6 is a flowchart showing details of the pre-reception procedure (S5) in the above embodiment. ? ...CPU, 3...ROM, 31...key. Patent Applicant Canon Co., Ltd. Agent Arata Yokubo - Figure 2 Figure 3 Figure 4 (1) Figure 4 (2) Figure 5 (1) Figure 5 (2) Figure 6

Claims (6)

[Claims] (1) A predetermined number of the same lines in the same image pattern,
duplicate signal transmission detection means for detecting that the same line has been transmitted continuously; error processing means for performing error processing as a document jam when the same line has been transmitted for a predetermined number of times; , a facsimile device comprising: warning means for warning a user when successive transmissions are made; and; (2) In claim 1, the predetermined number is fine/standard communication mode, or
A facsimile device characterized in that settings are made according to a communication mode of halftone/binary. (3) The facsimile apparatus according to claim 1, wherein the predetermined number is different between a case of an all-white image pattern and a case of a pattern other than the all-white image pattern. (4) A predetermined number of identical lines in the same image pattern,
duplicate signal reception detection means for detecting that the same line has been received continuously; error processing means for performing error processing as a document jam in the transmitter when the same line is received a predetermined number of times in succession; the same line A facsimile device comprising: warning means for warning a user when a predetermined number of consecutive transmissions have been made; (5) In claim 4, the predetermined number is a communication mode fine/standard, or
A facsimile device characterized in that settings are made according to a communication mode of halftone/binary. (6) The facsimile apparatus according to claim 4, wherein the predetermined number is different between a case of an all-white image pattern and a case of a pattern other than the all-white image pattern.