JPH03263080A - Printer - Google Patents

Abstract

PURPOSE:To easily find abnormal data by converting detected abnormal data to a printable data form to print out converted data at the time of detecting the abnormality of control data from a higher-order device. CONSTITUTION:Control data from the higher-order device is received by a higher-order interface 201. A microcomputer 204 detects the state of a function select switch on an operation panel part 203; and when the abnormal data detecting function is effective, received data is analyzed in accordance with a preliminarily defined form. If abnormality is detected as the data analysis result, data is converted to a printable form, and a print command is sent to a mechanism part 202 based on converted data to print data. Consequently, an operator can obtain the printed result of only abnormal data. Thus, the abnormal position is easily found.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a printing device, and in particular, when control data from a host device differs from the specifications of the printing device, the abnormal data is printed out and sent to the host device. This invention relates to a printing device that can detect errors in device data.

[Conventional technology]

In general, printing devices have various functions such as not only printing characters but also setting the print format, and control data consisting of a series of data to operate these functions is defined. .

By the way, if the above-mentioned control data is sent from the host device in an incorrect format, the printing device will either invalidate the control data as soon as it determines that the data is abnormal and continue processing from the next data, or if an abnormal condition occurs. The method used was to display a simple alarm and stop the process.

[Problem to be solved by the invention]

In the method described above, if the data sent from the host device is abnormal, it is impossible to determine from the status of the printing device which data in the data group is abnormal, and the data sent from the host device is It is necessary to review all the data that has been created many times on the host device side. Moreover, unless the operator has detailed knowledge of the control data of the printing device, it is difficult to find the exact location of the error, resulting in an extremely time-consuming task.

SUMMARY OF THE INVENTION In view of these problems, it is an object of the present invention to provide a printing device that facilitates the discovery of abnormal data.

[Means to solve the problem]

The printing apparatus of the present invention includes a contact point to which function selection data is input, a function selection data determination means for determining the state of the function selection data, and a contact point through which the determination data of the function selection data determination means is input, and from which the determination data of the function selection data determination means is input. abnormal data detection means for detecting an abnormality in control data; data conversion means for converting the abnormal data detected by the abnormal data detection means into a printable data format; and printing means for printing the data.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of the present invention.

The function selection data 101 indicates the state of a contact (hereinafter referred to as a function selection switch) 102, and is data that instructs the printing device to select a function such as normal operation or detection and printing of abnormal data. (Hereinafter, the function for detecting and printing abnormal data will be referred to as the abnormal data detection function). The function selection data determining means 103 determines the state of the function selection data 101 and determines whether to enable or disable the abnormal data detection function. The abnormal data detection means 105 analyzes the control data 104 from the host device and detects whether or not it is abnormal. The data conversion means 106 is the abnormal data detection means 1
Control data 10 from the host device detected by 05
4 into printable format data 107.

The printing unit 108 creates a print command based on the printable format data 107 and actually prints it out.

FIG. 2 is a block diagram showing the configuration of a printing apparatus according to an embodiment of the present invention. The upper level interface 201 is for communicating with a higher level computer (not shown) and the like. The mechanical unit 202 performs a printing operation according to a print command based on data received by the upper interface 201. The operation panel section 203 has switches and a display for performing various inputs, and a function selection switch is mounted here. A microcomputer 204 performs main control of the printing apparatus.

A ROM (read-only memory) 205 is a memory circuit that stores programs to be executed by the microcomputer 204, and programs corresponding to a normal printing function and an abnormal data detection function are written therein. R.A.
M (random access memory') 206 is a memory circuit that stores data necessary for the operation of the microcomputer 204, such as data received by the upper interface 201.

Next, the operation of this printing device will be explained.

FIG. 3 is a flowchart showing the control flow of the microcomputer 204 when receiving the control data 104 from the host device. Control data 104 from the host device
is received by the upper interface 201 (step 1). The microcomputer 204 is the operation panel section 20
The state of the function selection switch 3 is detected, and if the abnormal data detection function is disabled (step 2; N), normal data/evening processing is executed. Furthermore, if the abnormal data detection function is enabled (step 2; Y), the received data is analyzed according to a predefined format (step 3). As a result of analyzing the data, if there is no abnormality (step 4: N), the data is discarded without being processed (step 7).

Furthermore, if there is an abnormality (Step 4; Y), the data is converted into a printable format (Step 5), and based on the converted data, a print command is sent to the mechanical unit 202 to perform printing (Step 6). .

In this manner, when the abnormal data detection function is enabled, the operator can obtain a print result of only the abnormal data by discarding normal data and printing only the abnormal data.

FIGS. 4(a) and 4(b) are diagrams respectively showing control data from a host device, the correct data format thereof, and an example of a print result when the abnormal data detection function is enabled.

In FIG. 4(a), 11, 12, and 13 are abnormal data, and these data are printed as characters. Data 14 and 15 are normal data, and nothing is printed.

Here, case 11 will be explained as an example (the values in parentheses below are the JIS codes corresponding to the data in hexadecimal). Data in correct format ESC (IB), A
These four data (41), 0 (30), and 1 (31) are control data for operating one function on the printing device. In contrast, data ESC (IB), A (41) from the host device.

Comparing 0 (30) and 2 (32), it is found that the fourth data is abnormal. When an abnormality is detected, the data from the host device is converted into printable data formats E (45) and S (53) by the data conversion means 106.
, C (43), SP (20), A41), S
P (20), O (30), SP (20) and 2
(32). Subsequently, a print command is sent to the mechanical unit 202 based on these converted data, and printing is executed. In addition, an underline is added especially to abnormal data portions, or if color printing is possible, color printing is performed so that abnormal data can be determined at a glance.

〔Effect of the invention〕

As explained above, according to the printing device according to the present invention, the abnormal data detection function of the printing device is enabled to check whether or not there is an abnormality in data created by a host device to the printing device.
This can be determined with a simple operation of sending multiple times.

Furthermore, if there is an abnormality in the data, the data is printed out, making it easy to find the abnormality and efficiently and accurately design print data and control programs for the printing device created by the host device. It has the effect of

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is a block diagram showing the configuration of a printing device according to an embodiment of the present invention,
Figure 3 is a flowchart showing the data processing flow;
Figures (a) and (b) are diagrams showing data and print results, respectively, according to an embodiment of the present invention. 101...Function selection data, 102...
・Contact point, 103...Function selection data judgment means,
104... Control data from the host device, 105
......Abnormal data detection means, 106...
Data conversion means, 107... Printable format data, 108... Printing means.

Claims (1)

[Claims] a contact point into which function selection data is input; a function selection data determining means for determining the state of the function selection data; and inputting judgment data of the function selection data determining means;
abnormal data detection means for detecting an abnormality in control data from a host device; data conversion means for converting the abnormal data detected by the abnormal data detection means into a printable data format; and a format printable by the data conversion means. 1. A printing device comprising: printing means for printing data converted into .