JPS58170166A - Facsimile test system - Google Patents

Abstract

PURPOSE:To perform the test of both reading and recording systems at one time without using any hardware, by storing a fixed pattern while a fluorescent lamp of the reading system is kept glowing with use of a function of printing of an originator. CONSTITUTION:When both a fluorescent lamp and the sensor output are normal, a normal state detecting signal of the reading system is delivered to an MPU1 from a light volume checking circuit 8. Thus the MPU1 generates an address to deliver a pattern of an F region shown in the diagram. In this case, only ''0123-P45'' of the region F is stored with the output given from an MPX4, and then only ''0101'' is delivered from the MPU1. Then the white part of the region F is recorded. The MPU1 delivers continuously the addresses and delivers regions A-E. In such a way, the tests are carried out to the printing of originator of the region F as well as to fixed patterns of regions A-E. In case the reading system has no normal working with insufficient luminosity of the fluorescent lamp or the abnormal output of the sensor, an abnormal state detecting signal is delivered to the MPU1 from the circuit 8. Then the MPU1 delivers continuously the address ''1101'' and the entire region F has a black output. Therefore it is judged that the function of the reading system is normal if the region F is printed, and then abnormal if the region F has a full black output. Furthermore, the abnormal part of the recorded area can be detected from the recording state of the fixed pattern as well as the printing state.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a facsimile test method, and in particular, to a facsimile test method that allows testing of a recording system and a reading system to be performed simultaneously without providing separate hardware. Regarding the test method used.

(2) Background of the technology Facsimile machines are often used to send patterns of characters and figures written on manuscripts to remote locations. This facsimile machine optically reads patterns such as characters and graphics in the reading system of the transmitting part, converts them into electrical signals and transmits them, and then uses the recording system of the receiving part to convert the electrical signals into faxes.
It reproduces patterns such as letters and figures. If this facsimile machine does not reproduce the original picture as originally intended, it would be troublesome to go back and find the cause, so make sure that the reading and recording systems of the facsimile machine operate normally. A test is carried out beforehand before transmitting and receiving documents.

At this time, in the original thread A, the original image is exposed to light from a fluorescent lamp, and the black and white reflected light from the original image is detected by a sensor such as a CCD and converted into electrical signals corresponding to the black and white of the original image. things are done. By the way, if the light intensity of the warning light is not within a certain allowable range, the output level from the COD will fluctuate due to fluctuations in the light intensity, and when the output level corresponding to the black part of the original image does not reach a certain standard level. , this may be extracted as a signal for the white part 0 In such a case,
This means that the reading system is not working properly, so when checking the reading system, it is necessary to check the relationship between the light intensity and the senna in advance and make sure that this is within a certain range. It is necessary to diagnose and evaluate the mechanical operation of the reception system of the terminal, the mechanical drive circuit, the recording unit drive circuit, the recording unit, and the image quality of the recording unit to confirm that the entire recording system operates normally.

(3) Prior Art and Problems) 1 Conventionally, when checking the reading system and recording system of a facsimile terminal, the above checks were performed separately using separate circuits each having its own self-check function. For example, in the reading system, a circuit detects changes in sensor output in response to changes in the light intensity of warning lights, and displays this on a panel when an abnormality occurs. In addition, in the recording system, a fixed monochrome binary pattern consisting of a combination of white and black is stored in a separate memory, and this test pattern is generated from a pattern generator and recorded and output. When some of the patterns were not reproduced as originally intended, I knew that there would be an abnormality in the functions of the recording system related to this pattern. Providing a separate self-check function for each system would make the circuit configuration thicker, which is contrary to the desire to downsize the device and save power, which is not desirable.

(4) Purpose of the Invention Accordingly, as described above, the present invention provides for miniaturizing the conventional 7-axis device by testing its reading system and recording system using separate self-check functions.
In order to improve the problem of not being able to save power, we turned on warning lights that read a fixed black and white binary pattern by using the sender printing function without having to set up a unique self-check function for each. To provide a test method for a facsimile terminal in which the reading system and the recording system can be tested simultaneously by recording on a recording paper using a tilted motion.

(5) Structure of the Invention In order to achieve the above-mentioned object, the facsimile test method of the present invention includes a storage means for storing a plurality of pattern elements constituting a recording output test pattern, and an operation status IIIt- a checking means for checking, a control means for assembling a normal test pattern using the pattern elements and changing a part of the last pattern for the normal state according to the abnormal machine 11111 signal of the checking means; Recording means t for recording based on
(6) The present invention is characterized in that, when the abnormality detection signal is transmitted by the control means, a part of the last pattern during normal operation is changed and the part is recorded and outputted by the recording means. Practical Next, an embodiment of the present invention will be explained based on FIGS. 1 to 4. FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 (A) is an overall diagram of a test pattern. , the same figure (b) is the pattern D,
A partially enlarged view of E. Figure 3 (A) shows the nine numeric characters that make up Figure 2 (C) and the addresses that specify each element pattern. Figure 4 0) to (c) are explanatory diagrams for converting each element pattern into data.
ROM) table, 3U table ROM address control i, 4U pattern multiplexer (MPX), 5 is a scanning line control section, 6 is an image signal binarization circuit, 7 is an image signal mixing circuit, 8 is a light amount check circuit A certain C microprocessor control circuit 1 not only generates an address for accessing the ROM table 2, but also has a readable/writable register, and by writing 4 bytes into this register, the result shown in FIG. If you specify the address shown in 8 characters, you will get . As a result, the test pattern shown in FIG. 2 (0) is generated. Furthermore, when the light k of the fluorescent lamp and the abnormality detection signal in the sensor check are transmitted during the test of the reading system, control is performed to make the area F in FIG. 2(a) completely black. Here, Figure 2 (
b) In the test pattern shown in K, the weaving thread a operates normally.
The light intensity of the fluorescent lamp is recorded on the recording paper when the output of the corresponding sensor is in a normal state. This test pattern is for printed letters, numbers, and white,
It consists of a fixed pattern consisting of a combination of black colors. Here, the F area has the last 4 digits of the electric hook number (0123) at the top center,
Consists of a hyphen (H), the total negative number (P45) of the original picture, and the remaining white part, area A is completely black, area B is a black and white alternating pattern at regular intervals, and area C is the area B@. Areas D and E, which are black and white inverted patterns, are composed of alternating IIa-shaped striped patterns, as shown in FIG. 2 (b).

ROM table 2 has numbers, numbers,
It is written with characters, symbols, and pattern elements. These elements are as shown in Figure 4 (a), e~(f), PI, I of 16X8 (0~FXDO~D?)
! The data in the ROM table 2 is written in the format shown by the hexadecimal symbol below it. And this JJ! When displaying a pattern in the size shown in Figure #I4 (b), it will be displayed with t-32 x 32 pixels, and in this case, this pattern will have the same pixels in the main scanning direction (horizontal direction). is output twice and four times in the sub-scanning direction (vertical direction).
This is the result when each pixel is output four times. in this case,
#14 The white parts of A to F in Figure 14 (A) are shown in Figure 4 (B).
This corresponds to a portion of the character spacing of 1.5.

Furthermore, in the area indicated by address r0101J of the ROM table 2, a white area pattern as shown in FIG. r001
In the area indicated by 1J, a striped pattern as shown in FIG. 4) is written, and in the area indicated by address r1011, a striped pattern as shown in FIG. 14 (e) is written.

Table number ROM address control 8341M4 Access the ROM table 2 as shown in Figure 0) (c) to (f).
This is to control the output state of the division in the main scanning direction indicated by 0-F in the pattern shown in Figure 4 (b), for example, the same pixel is output twice in the main scanning direction in succession. 0 Putter 7MPX4 is D output from ROM table 2.
0~D? One of the eight lines in the main scanning direction is selectively outputted based on the control of the scanning line control section 5, and the hook is the same 2-inch line in 91j in FIG. 4(b). The 0-scanning line control unit 5, which outputs -4 lines at a time, controls the number of times the same data is outputted from the pattern MPX 4 in the sub-scanning line direction.

Image signal 2 (The IT conversion circuit 6 converts the read signal from a sensor such as a CCD that read the original into a binary electric signal.

The image signal mixing circuit 7 is a circuit that mixes the binary reading signal of the original and the image signal of the source printing numbers, characters, and fixed turns. This is to check the light ii of the fluorescent lamp, or to check the magnitude of the senna output signal from this fluorescent lamp. The operation of this embodiment shown in FIGS. 1 to 4 will now be described, in which an abnormal signal is generated when the amount of light or the output signal of the sensor is not normal, and this signal is transmitted to the microprocessor control circuit 1.

■ First, during the test, turn on the fluorescent light and check the reading system.0 At this time, if the reading system operates normally,
That is, when the output of the fluorescent lamp is normal and the output of the sensor is also normal, a normal state detection signal indicating that the reading system is normal is output from the light amount check circuit 8 to the microprocessor control circuit 1. 0 ■ As a result, the microprocessor control unit Ml first
Figure 2 (generates an address to output the pattern of the F area in (A) 0 Therefore, first, the address ro101J is output for the first 8 characters because of the white part, and then the address ro101J is output for the next 8 characters.
For the characters r0123 to P45Jt-output the addresses corresponding to these for display, and for the last 8 characters output the address r0101J for the white part.0
Addresses of 4 bytes in total for each of these 8 characters are entered in the register in the microprocessor control circuit 1, and are written in the ROM table 2 one byte at a time in the form of 2° to 27 as shown in Figure 3 (b). As a result, the output as shown in Figure 3 (Figure 3) is obtained.If the control is performed at a resolution of 32 per character, the timing When outputting sequential data from the ROM table 2 in synchronization with the clock, the table ROM address control unit 3 performs a control operation to output the same data twice in the main scanning direction in succession. The data from 0 to F in the main scanning direction is expanded to 32.Then, the data output from the ROM table 2 is transferred to the scanning line controller 5 in the 1/8) turn MPX4. Under control, the same main scanning line information is continuously output for four lines in the sub-scanning line direction. As a result, the line D in the sub-scanning direction
, ~D, is again expanded to 32. That is, from pattern MPX4, the data on line D is first output four times, and then the data on line D is output four times.

The data of line D will be outputted four times, and the data of line D will be outputted four times in the same manner.

The control of the table-ROM-address control section 3 and the scanning line control section 5 can be specified by, for example, a software command. In this way, the pattern MPX
The data output from the image signal binarization circuit 6 is mixed with the image signal from the image signal binarization circuit 6 in the image signal mixing circuit 7. Since there is no output car number, the image signal mixing circuit 7 outputs 6 signals from the pattern MPX4, and first! Figure 2 (
b) Only r012 in the OF area: (2P45) is recorded.

■ Next, address [0101
Since only J (D) is output from the microprocessor control circuit 1, the white part of the F area will be recorded. Continuously outputs the A area 0 ■ Next, the microprocessor control circuit 1 outputs the address "1".
101'' and the address r0101J are output alternately to output the B area, and then conversely, the address ``θ'101'' and the address rl101J are alternately output to output the C area. And address r0011J and address r1011
0 to output J continuously and output area D and area E
In this manner, it is possible to perform the source print test shown in area F of FIG.

■ If the reading system does not operate normally in the above case, for example, the luminous intensity of the fluorescent lamp is low, or the output of a sensor such as a CCD is abnormally small even though the luminous intensity of the fluorescent lamp is normal. , an abnormal state detection signal indicating such an abnormality in the reading system is outputted from the light amount check circuit 8 to the microprocessor control circuit 1. As a result, the timer processor control circuit 1 continuously outputs the address rl101J. The F area in FIG. 2(a) has an all-black output.

Therefore, when testing, the operator determines that the reading system function is normal if printing using the source printing function is performed in the F area that is first output, and that the reading system function is normal if the output is completely black. Make sure it's abnormal. Furthermore, by looking at the printed state and fixed pattern record l11 shown in FIG. 2 (a) recorded during the test, and checking the location where an abnormal condition exists in these recorded parts, the abnormal part is detected. be able to.

In the above explanation, the resolution of one character is 32x32, but of course it can be made to any other size such as 16x8, 16x16, or other sizes. (7) Effects of the Invention and More As described above, according to the present invention, a fixed pattern is recorded in a recording system using the sender printing function, and when there is an abnormality in the amount of light from a fluorescent lamp, a part of the fixed pattern is recorded. Since it is made completely black, it is possible to check the amount of light from the fluorescent lamp without installing any special hardware configuration. Also, some of the fixed patterns are recorded as initially.
If there is no error, it is possible to obtain a clue as to which part of the recording system has the abnormality, and this also does not require any special hardware.

In this way, the reading system and the recording system can be tested at the same time without requiring any special hardware, making it possible to downsize the device and save power, as well as being efficient as a testing method.

[Brief explanation of the drawing]

Figure 1 shows the components of an embodiment of the present invention, Figure 2 (0) is a diagram showing the test pattern, Figure 3 (B) is an enlarged view of a part of it, and Figure 3 (A) shows numbers and letters. Figure 4 (b) shows the address transmission format, Figure 4 (a) shows the data format of the number 1, and Figure 4 (b) shows the number display format. In the figure, (C) and (E) are diagrams showing the data format of the white data format, FIG. In the figure, l is a microprocessor control circuit, 2 is R (JM
Table, 3 is the chip ROM Φ address control section, 4 is the pattern MPX1, 54, scanning line side control section, 6 is the one signal binary conversion path, i/7 is the wjj signal 4 signal mixing circuit is the light amount Ruru check circuit. 4I Suzukari Kazuhito Fujitsu Ltd. agent Ben i±, Kamitani Hiroshi,,j, -”l” ,;-,,,i year old 1 year old 2 [(ii) Sai Zlfl (loft 3 m (A) t+rh <A) 1-4 Akira (Ha) 386- O4 BO (2 years old 4 items (not) “O4-Hei (he)

Claims (1)

[Claims] (1) A storage means for storing a plurality of pattern elements constituting a recording output test pattern, and an operation state of the face weaving section 11
Mt-checking means, a control means for assembling a normal test pattern from the pattern elements, and changing a part of the normal test pattern according to an abnormality detection signal from the checking means, and the storage means. A recording means t is provided for recording data based on the output data of the control means, and when the abnormality detection signal is transmitted to the control means, the normal test data (a part of the turn is changed and the data is recorded and outputted by the recording means). A facsimile test method that is characterized by: