JPH0924645A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate to determine the presence and absence of non-printed data and the length and content of non-printed data by providing a line feed printing function for printing the remaining printing data of the line to the following line when receiving a paper end detection notice from paper width detecting means prior to detection of line feed code from the host device. SOLUTION: The printing control means 1 starts printing when receiving printing data for one line from the host device and during the printing operation, it checks up detection signals from paper width detection means 4, also when receiving paper end detection signals, it determines that the printing head is not in the printing feasible region and forces the printing head to line feed. In addition, the control means ascertains whether or not non-printed data exists in the line, and in the case of 'NO', a printing process of printing data in the next line is conducted, and in the case of 'YES', the process setting contents of non-printed data in the setting means 3 is checked up subsequently, furthermore, in the case of 'SWEEPING OUT', non-printed data is swept out for printing the printing data in the following line, and in the case of 'PRINTING', the non-printed data is stored the memory means 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer device, and more particularly to a printer device suitable for serial line printing.

[0002]

2. Description of the Related Art A printer device performs a printing process based on print data from a host device and a control code such as a line feed code.

A conventional printer device is equipped with a paper-out detecting device, and if a paper-out is detected before receiving a line feed code, it is forcibly forced to prevent the print head from being damaged due to blank ejection. There was a line break.

Various methods are used for the paper-out detecting device, and one of them is a technique for optically detecting a paper-out, which is disclosed in Japanese Patent Laid-Open No. 63-54268.

[0005]

However, in the above-mentioned conventional example, it is possible to prevent the blanking of the platen,
If the print data exists in the range where it is detected that there is no paper, the print data is discarded and it is not possible to know whether the print data from the host device was printed correctly. There was an inconvenience that it was difficult.

[0006]

SUMMARY OF THE INVENTION The object of the present invention is to improve the disadvantages of the conventional example, and in particular, to print the print data which cannot be printed due to the insufficient width of the paper in the printable area of the paper. It is an object of the present invention to provide a printer device capable of preventing the blanking of the platen.

[0007]

Therefore, in the present invention, the paper width detecting means for detecting the paper edge in the width direction of the printing paper, and the print data from the host device by referring to the information from the paper width detecting means. In a printer device including a print control unit that controls printing on a printing paper line by line, and a print unit that prints out print data according to the control of the print control unit, the print control unit includes a line feed code from a host device. When the paper edge detection notification from the paper width detecting means is received before the detection, the print data (unprinted data) remaining in the line is printed on the next line.
This aims to achieve the above-mentioned object.

In the present invention specified by these items, the print control means always checks the signal from the paper width detection means during the printing operation, and detects the line feed code from the host device. When receiving the report of the detection of the paper edge from the paper width detection means, the unprinted data of the print data of the line is once stored in the storage means.

Then, the print control means forcibly feeds the print head, and when the print head is positioned in the printable area, prints the unprinted data stored in the storage means.

When the printing of the unprinted data is completed, the print control means forcibly feeds the print head. Then, the print data of the next line is continuously printed.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
A description will be given based on FIG.

In the embodiment shown in FIG. 1, the sheet width detecting means 4 for detecting the sheet edge in the width direction of the printing sheet and the user setting "sweeping" or "printing" the unprinted data are set. Setting means 3, a storage means 2 for temporarily storing unprinted data, and the paper width detection means 4 when the paper width detection means 4 detects the paper edge before detecting a line feed code from the host device.
According to the setting contents of the setting means 3, the unprinted data is discarded (deleting function), or the contents of the storing means 2 is printed on the next line (line feed printing function) according to the print control means 1 and the control by the print control means 1. It comprises a printing means 5 for printing out print data.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG.

(1). The print control means 1 starts the printing operation when it receives the print data for one line from the host device.

(2). The print control means 1 is
The detection signal from the paper width detecting means 4 is constantly checked (step S1 in FIG. 2) to determine whether the print head is within the printable area (step S2 in FIG. 2). That is, it is checked whether printing can be continued.

(3). If there is no paper edge detection signal from the paper width detection means 4, the print control means 1 determines that the print head is within the printable area, and performs normal print processing (step S8 in FIG. 2).

On the other hand, when the print control means 1 receives the paper edge detection signal from the paper width detection means 4, the print control means 1 determines that the print head is not within the printable area, performs a line feed of the print head, and It is checked whether or not there is unprinted data (step S3 in FIG. 2).

(4). If the print control unit 1 determines that there is no unprinted data in the line, the print control unit 1 prints the print data of the next line (step S8 in FIG. 2).

On the other hand, when the print control means 1 determines that there is unprinted data in the line, it subsequently checks the processing setting contents of the unprinted data in the setting means 3 (step S4 in FIG. 2).

(5). If the processing setting content of the unprinted data is “sweep out”, the print control means 1
As shown in FIG. 3A, the unprinted data is swept away, and the print data of the next line is printed (step S8 in FIG. 2).

On the other hand, when the process setting content of the unprinted data is "print", the print control means 1 stores the unprinted data in the storage means 2 (step S5 in FIG. 2).

(6). As shown in FIG. 3B, when the print control unit 1 confirms that the print head is at the line feed position, it prints the unprinted data stored in the storage unit 2 (step S6 in FIG. 2). .

(7). When the printing of the unprinted data is completed, the print control means 1 performs line feed / centering of the print head and prints the print data of the next line (step S8 in FIG. 2).

[0024]

Since the present invention is constructed and functions as described above, according to this, the print control means prints the unprinted data on the next line when the paper edge is detected before the line feed code is detected. Therefore, it is possible to know the presence / absence of unprinted data, the length of unprinted data, and the contents of unprinted data. If you only know the printed contents, there will be no printing omissions and reprinting is not necessary. Therefore, it is possible to provide an excellent printer device that has never been used, in which it is easy to re-edit print data in the case of clear copy, or it becomes easy to select print paper.

[Brief description of drawings]

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

FIG. 2 is a flowchart for explaining the operation of the embodiment of FIG. 1;

FIG. 3 is a print example for explaining the operation of the embodiment of FIG.

[Explanation of symbols]

 1 Print Control Means 2 Storage Means 3 Setting Means 4 Paper Width Detection Means

Claims (4)

[Claims] 1. A paper width detecting means for detecting a paper edge in the width direction of the print paper, and control for printing the print data from the host device line by line on the print paper with reference to the information from the paper width detecting means. In a printer device including a print control unit that performs the above, and a print unit that prints out the print data on the print paper under the control of the print control unit, the print control unit detects a line feed code from a higher-level device. A printer device having a line feed printing function for printing the remaining print data (unprinted data) of the line to the next line when the paper edge detection notification from the paper width detecting means is received previously. 2. The printer device according to claim 1, wherein the print control unit includes a storage unit for temporarily storing unprinted data. 3. When the print control means receives a paper edge detection notification from the paper width detection means before detecting a line feed code from a higher-level device, the print data (unprinted data) remaining in the line is output. 2. The printer device according to claim 1, further comprising a delete function for deleting. 4. The print control means is provided with a setting means for receiving a setting command from a user and setting the print control means, and the print control means has the line feed printing function according to the contents set by the setting means. 4. The printer device according to claim 3, further comprising a selection function of selecting one of the deletion function and processing unprinted data.