JPS61251355A - Testing method for facsimile equipment - Google Patents

Abstract

PURPOSE:To attain testing of many facsimile equipments to be tested by checking the format of answer signals to determine if they are normal. CONSTITUTION:Sending a control signal from a tester 1 to tested facsimile equipments 2(0)-2(n) causes them to return an answer signal of specified format. When the answer signals are input to an answer signal selecting division 3, it selects one answer signal according to the control signal which has been input to it in advance and sends the answer signal to the tester 1. The tester checks if the format of the answer signal is normal, allowing the automation of the test for many tested facsimile equipments to be tested 2(0)-2(n).

Description

[Detailed Description of the Invention] [Summary] This is a testing method for facsimile machines, in which a mask device and a device under test are placed one-on-one in a functional test. By activating multiple devices under test at the same time and sequentially checking their response signals, it is possible to test the functions of multiple devices under test with high efficiency and accuracy.

[Industrial application field]

The present invention relates to a facsimile device testing method for efficiently performing functional tests on a plurality of facsimile devices under test.

With the advancement of automation in office processing operations, various office automation devices have been developed and used. One such device is a facsimile machine that has the ability to directly transmit text, line drawings, etc. to the other party.

As such facsimile machines are supplied in large quantities and their range of use is expanded, products with increasingly high reliability are required. Under the circumstances described above, it is expected that product testing of such facsimile devices can be performed with high accuracy and high efficiency.

[Prior art and problems to be solved by the invention] FIG. 4 is a diagram explaining a conventional test method, and FIG. 5 is a diagram showing the configuration of a facsimile machine.

A plurality of facsimile devices under test 2 (0) shown in FIG.
As shown in FIG. 5, ~2(n) is a line control unit 51 that controls the connected telephone line (on-hook/off-footer monitoring, signal transmission/reception, DC loop monitoring, etc.), and a signal sent to the telephone line. a modem section 52 that modulates and demodulates signals input from a telephone line; a data conversion section 53 that compresses and restores the image information to be transmitted; and a data converter section 53 that restores the current image from the image information transferred by a thermal printer or the like. It is comprised of a recording section 54, a recording section 55 that reads the transmitted current image as pixel data with a solid-state imaging device (hereinafter referred to as CCO), and the like.

As one of the conventional testing methods for such facsimile devices 2(0) to 2(n), as shown in FIG. 4(A), a mask facsimile device 4(
This is a method in which the facsimile machines 0) to 4(n) and the facsimile machines under test 2(0) to 2(n) whose functions are to be checked are connected one-to-one. In this method, it is possible to check the function and, if there is a failure at that time, detect the failure by response signals (2) from the facsimile machines under test 2(0) to 2(n).

Another method is to connect a plurality of facsimile devices under test f2(0) to f2(n) to a mask facsimile device 4 having a rerouting function, as shown in FIG. 4(B). At the same time, a large number of facsimile machines under test 2(i)
This is a method to check the functionality of the system. However, in this method, since only the response signal (2) from one facsimile machine under test 2(i) can be received for fault detection, it is impossible to detect faults in a plurality of facsimile machines 2(i) at the same time.

The mask facsimile device 4 shown in FIG. 4(B) is similar to the facsimile devices 4(0) to 4(n) shown in FIG. 4(A).
) has a broadcast control section (not shown) that can simultaneously transmit the image information (2) to a plurality of parties.

As mentioned above, when testing using the test method shown in FIG. 4(A), function confirmation and fault detection can be performed at the same time, but when a large number of tests are performed at once, the mask facsimile device 4 is required to handle this. (0) to 4(n) are required.

On the other hand, the test method shown in FIG. 4(B) is capable of checking the functions of many devices at once, but has the problem that it can only detect a failure in one device.

[Means for solving problems]

FIG. 1 shows a block diagram of the principle of the present invention.

Figure 1 shows a tester l that transfers control signals to a plurality of facsimile machines under test 2(i) and checks response signals thereto to comprehensively judge the operation of the facsimile machines under test 2(i). and facsimile devices under test 2(0) to 2 which are connected in parallel to the tester 1 and whose functions are checked and fault detection is checked.
(n); and a response signal selection unit 3 that selects response signals of the facsimile devices under test 2(0) to 2(n) and sends them to the tester 1.

[Effect]

From the tester 1 to the facsimile device under test 2(o) to 2(
When a control signal is sent to test device 1, response signals having a predetermined format are returned to tester 1 from facsimile devices under test 2(0) to 2(n).

When a response signal is input, the response signal selection unit 3 selects one response signal using a control signal input in advance and sends it to the tester 1.

The tester I checks the format of the response signal and determines whether the response signal is good or bad, and can easily and easily test a large number of facsimile devices under test 2(0) to 2(0) with a simple circuit configuration.
2(n) testing is automatically enabled.

〔Example〕

The gist of the present invention will be specifically explained below with reference to embodiments shown in FIGS. 2 and 3.

FIG. 2 is a block diagram explaining one embodiment of the present invention, and FIG.
The figures each show an operational diagram according to the present invention.

Note that the same reference numerals indicate the same objects throughout the figures.

The tester 1 is a data converter 53. of the facsimile machines 2(0) to 2(n). Recording section 54. A reading section 55, a signal transmitting/receiving section 11 that controls the transmission and reception of signals to and from the facsimile device under test 2(i) and has the functions of a modem and a network control device, and the facsimile device under test 2(i). (i) A signal check section 12 checks the format of the response signal sent from the facsimile device under test 2(0) to 2(
n), and the operation determination unit 13 that determines the quality of the
(i) Relay control unit 14 that performs simultaneous transfer control for )
It consists of and.

FIG. 3(A) shows the transmitting side (in this example, tester 1) and the receiving side (in this example, facsimile device under test 2 (0)
) to 2(n)) is shown. Note that this embodiment shows a case where image information is transmitted using a telephone line. Further, this embodiment will be described assuming that the operation up to connection with the receiving side has already been completed.

Furthermore, the meaning of each signal (CSI, DrS, TSI, etc.) is shown in FIG. 3(B).

Set the original to be sent on the tester 1 side, and press the communication buttons on the tester 1 side and the facsimile device under test 2 (0) side (in this example, the test is performed in order from the lowest number). Then, the tester 1 connects the other party's facsimile device under test 2 (
The model of device 2(0) is identified by the signal (C51, DIS signal) transmitted from device 2(0).

Next, the tester 1 notifies the facsimile device under test 2(0) of the operation mode using signals (TSI, DO3 signals). Subsequently, the tester 1 trains the high-speed modem using the TFC signal, and then transmits the facsimile device under test 2.
The response signal (CFR signal) from (0) causes the image signal P
Send IX.

When the transmission of the image signal PIX for one page is completed, the RTC signal,
The EOP signal notifies the end of the page, and the confirmation signal (
After receiving the MCF signal, a disconnection signal (DCN signal) is sent to the facsimile device under test 2(0), and the process ends.

The tester 1 is the device for the response signal selection section 3! When the model of device 2(0) is identified, it is connected to device 2(O) through the corresponding SWI, and at this point, tester 1 and device 2(0) are connected to device 2(0).
This is equivalent to a pair-to-one connection. In addition, devices 2(0) to 2(n)
1 to SWn of the response signal selection unit 3 correspond to each other, and the corresponding device 2 (
0) to 2(n).

In addition, the above control signals (TSI signal, DC5 signal, TP
The format (signal format) of the response signal (CFR signal, MCF signal, etc.) sent back from the device 2 (0) is checked by the signal check unit 12 inside the tester 1, and further operation is performed. The test of the device 2(0) is completed by checking the combined operation in the determining section 13 and determining its acceptability.

Next, a similar control signal is sent to the device 2(1), the response signal at that time is similarly checked by the signal checking unit 12, and the operation determining unit 13 determines whether it is good or bad. Repeat this one after another until all facsimile machines under test 2(0)
~2(n)).

Note that whether the above test is to be performed once or multiple times for one device 2(i) can be specified by specifying in a number setting section (not shown) of the tester 1.

〔Effect of the invention〕

According to the present invention as described above, a large number of facsimile devices under test can be tested quickly and reliably with a simple circuit configuration.

[Brief explanation of drawings]

Figure 1 is a block diagram of the principle of the present invention, Figure 2 is a block diagram explaining an embodiment of the present invention, and Figure 5 is a block diagram of the principle of the present invention.
The figure shows a configuration diagram of a facsimile machine. In FIGS. 2, 4, and 5, 1 is a tester, 11 is a signal transmission/reception unit, 12 is a signal check unit, 13 is an operation determination unit, 14 is a broadcast control unit, and 2(0) to 2( n) is a facsimile device under test, 3 is a response signal selection section, 4.4(0) to 4(n) are facsimile devices for masks,
51 is a line control section, 52 is a modem section, 53 is a data conversion section, 54 is a recording section, and 55 is a reading section. 7 model principle of the present invention 7'' low/7 model 1

Claims (1)

[Scope of Claims] A plurality of facsimile devices (2(0) to 2(
n)) test method, wherein the facsimile machine (2)
(0) to 2(n)), a tester (1) that checks the format of response signals, determines the quality of the response signals, controls transmitted and received signals, and has a broadcast function; a response signal selection unit (3) that selects the response signals from 0) to 2(n)) and sequentially sends them to the tester (1); (0)
-2(n)) are sequentially sent out to the activation control signals and image information, respectively, in the response signal selection section (3), and are sequentially selected and taken into the tester (1), and the response signals are A testing method for a facsimile machine, characterized in that the tester (1) checks: