JPH01235658A - printing device - Google Patents

Abstract

PURPOSE:To perform printing without fail and thereby improve reliability by comparing serial number information which is read with serial number information stored in a storage means and controlling printing so that it is performed on the next page only when these serial numbers coincide. CONSTITUTION:Printing data of a data buffer 17 and a serial number table 20 are changed to character pattern data of a font memory 18 per single page and stored in a page memory 19. A printing mechanism section 23 starts printing when paper 26 is positioned below a printing unit 28. At that time, bar codes are printed in the lower blank of paper 26. Next, the printed paper 26 is further fed in an arrow direction(b), and when the paper 26 is positioned below a bar code reader 21, the bar codes of the paper 26 are read. Code data which is read is stored in a bar code memory 22 and compared with the serial number data of the page memory 19. If both agree to each other, the next page is printed.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a printing device.

(Prior art) Generally, when outputting print data transferred from a host system, a page printer organizes and prints print data for each page, and print data is printed for each line. A line printer that organizes and prints
2. Description of the Related Art Printing devices such as serial printers are used that organize print data for each character and print the data.

FIG. 7 shows the configuration of the above-mentioned page printer.

As shown in the figure, the page printer includes a host interface 2 for changing the format of print data from a host system 1, a data buffer 3 for temporarily storing print data, and character pattern data. a font memory 4 for changing print data into character pattern data and storing it, a printing mechanism section 6 for printing, and a CPIJ 7 for controlling the operation of each of these components.
is provided.

The printing mechanism section 6 includes a printing mechanism main body 8, as shown in FIG. A stocker 1o for stocking paper 9 is provided at one end of the printing mechanism main body 8. A printing unit 11 is provided in the center of the printing mechanism main body 8 . A stacker 12 is provided at the other end of the printing mechanism main body 8 to stock the discharged sheets 9.

The print data transferred from the host system 1 is stored in the data buffer 3 via the host interface 2. Next, the print data stored in the data buffer 3 is changed into character pattern data in the font memory 4 for each page and stored in the page memory 5. After this, the character pattern data in the page memory 5 is
It is output to the printing mechanism section 6.

In the printing machine lateral section 6, the paper 9 in the stocker 10 is moved in the direction of arrow a, and printing is started when the paper 9 is positioned below the printing unit 11. Thereafter, the printed paper 9 is discharged to the stacker 12.

(Problems to be Solved by the Invention) By the way, in the conventional page printer described above, the printing results are checked by the operator looking through the printed sheets 9 one by one.

Therefore, when the number of printed sheets 9 is large, checking is time consuming and inconvenient.

The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to provide a printing device that can perform printing reliably.

[Configuration of the Invention (Means for Solving the Problem) In order to achieve the above object, the printing device of the present invention includes a storage means for storing print data and serial number information attached to the print data, and a storage means for storing the print data and serial number information attached to the print data. A printing means for printing the print data and serial number information stored in the means, a reading means for reading the serial number information printed by the printing means, and the serial number information read by the reading means and the serial number information stored in the storage means. and control means for controlling printing on the next page only when they match.

(Function) In the printing device of the present invention, the control means compares the serial number information read by the reading means and the serial number information stored in the storage means, and performs control to print on the next page only when they match. Therefore, printing can be performed reliably.

(Example) Hereinafter, details of an example of the present invention will be described based on the drawings.

FIG. 1 shows an embodiment in which the present invention is applied to a page printer.

As shown in the figure, the page printer includes a host interface 16 for changing the format of print data from a host system 15, a data buffer 17 for temporarily storing print data, and character pattern data. A font memory 18 is provided. The page printer also includes a page memory 19 that changes print data into character pattern data and stores it, and a host system 15.
A serial number table 20 is provided in which serial number data from . Furthermore, the page printer includes a barcode reader 21 that reads barcodes printed on paper, which will be described later.
, a barcode memory 22 that stores code data read by the barcode reader 21, and a printing mechanism unit 23 that performs printing.
, and a CPU 24 that controls the operation of each of these components.

The printing mechanism section 23 includes a printing mechanism main body 25, as shown in FIG. A stocker 27 for stocking paper 26 is provided at one end of the printing mechanism main body 25. The printing unit 2 is located in the center of the printing mechanism main body 25.
8 is provided. At the other end of the printing mechanism main body 25, the above-mentioned barcode reader 21 and the ejected paper 2 are mounted.
Two stackers for stocking 6 are provided.

FIG. 3 shows the paper 26 described above, and a bar code is printed on the lower margin of the paper 26.

Next, the operation of the above-mentioned page printer will be explained.

First, print data is transferred from the host system 15. At this time, the print data includes serial number data corresponding to one page of print data. Next, the print data is stored in the data buffer 17 via the host interface 16, and the serial number data is stored in the serial number table 20. Next, the print data in the data buffer 17 and the serial number table 20 is changed into character pattern data in the font memory 18 for each page and stored in one page memory. Thereafter, the character pattern data stored in one page memory is output to the printing mechanism section 23.

The printing 1 character mechanism section 23 feeds the paper 26 in the stocker 27 in the direction indicated by the arrow, and starts printing when the paper 26 is positioned below the printing unit 28. At this time, a bar code is printed on the lower margin of the paper 26, as shown in FIG.

Next, the printed paper 26 is further sent in the direction of the arrow,
When the paper 26 is positioned below the barcode reader 21, the barcode on the paper 26 is read.

After that, the paper 26 is discharged to the stacker 29 side.

The code data of the read barcode is stored in the barcode memory 22. The code data in the barcode memory 22 is compared with the serial number data in the page memory 19.

At this time, printing on the next page is performed only when the serial number data in the page memory 19 and the code data of the read barcode match. If the data do not match, it is reported to the operator as an error or to the host system 15 as an error.

FIG. 4 shows another embodiment in which the configuration of the page printer shown in FIG. 1 is changed. Note that parts common to those in FIG. 1 are denoted by the same reference numerals and redundant explanations will be omitted.

As shown in the figure, the page printer includes a host interface 16, a data buffer 17, and a font memory 1.
8. One page memory, a serial number table 20, a printing mechanism section 23 that performs printing, and a C that controls the operation of each of these components.
A PL124 is provided. Furthermore, in place of the barcode reader 21 and barcode memory 22 shown in FIG. 1, the page printer stores an image scanner 30 that reads numerical codes printed on paper, which will be described later, and code data read by the image scanner 30. A scan memory 31 is provided.

The printing mechanism section 23 includes a printing mechanism main body 25, as shown in FIG. The printing mechanism main body 25 has paper 3
A stocker 27 for stocking 2, a printing unit 28, an image scanner 30, and a stacker 29 are provided.

FIG. 6 shows the above paper 32, in which a numerical code is printed in the lower margin of the paper 32.

In the page blink of this embodiment, the numerical code on the paper 32 can be read by the image scanner 30.

In this manner, in each of the embodiments described above, the serial number data of one page memory is compared with the code data read by the barcode reader 21 and the image scanner 30, and only when they match, printing is performed on the next page. Therefore, printing on the paper 27, 33 becomes reliable, thereby saving the operator's effort to check the printing results. Further, since printing on the next vane is performed only when the serial number data and code data match, if the printing operation stops, it can be detected as a paper jam or a failure of the printing unit 28.

In each of the above embodiments, an example in which the present invention is applied to a page printer has been described, but the present invention is not limited to this example, and may be applied to other printing devices such as a line printer and a serial printer.

[Effects of the Invention] As explained above, the printing device of the present invention can print reliably, and thus can improve reliability.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of the present invention applied to a page printer, Fig. 2 is a side view simply showing the printing mechanism section of Fig. 1, and Fig. 3 is a page printer of Fig. 1. FIG. 4 is a block diagram of a page printer showing another embodiment with a different configuration from FIG. 1, and FIG. 5 is a side view briefly showing the printing mechanism shown in FIG. 4. figure,
FIG. 6 is a plan view showing the paper printed by the page printer shown in FIG. 4, FIG. 7 is a block diagram showing the configuration of a conventional page printer, and FIG. 8 is a simple view of the printing mechanism shown in FIG. 7. FIG. 15... Host system, 17... Data buffer, 18... Font memory, 19... Page memory, 20... Serial number table, 21... Barcode memory, 22... Barcode memory , 24...CPU
, 25...Printing mechanism main body, 26.32...Paper, 28...Printing unit, 30...Image scanner, 31...Scan memory. Applicant Toshiba Corporation Patent Attorney Sasa Suyama - Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] (1) a storage means for storing print data and serial number information attached to the print data; a printing means for printing the print data and serial number information stored in the storage means;
A reading means for reading the serial number information printed by the printing means compares the serial number information read by the reading means with the serial number information stored in the storage means and prints on the next page only when they match. What is claimed is: 1. A printing device characterized by comprising: a control means for controlling the printing device.