JPH04253263A - Document printer - Google Patents

Abstract

PURPOSE:To eliminate necessity for printing a regular format part on a recording paper sheet in advance and further to print the plural kinds of regular format documents without exchanging the recording paper sheet when printing the document expressed on a regular format. CONSTITUTION:A printing code input part 1 outputs a printing code 101 received from a host device. A printing code analysis part 2 converts information into character information 103 of a character font part 3 corresponding to the inputted printing code 101 and when the converted character information 103 is information not to be changed by pages, it is transferred to a regular format information storage part 4. A printing information synthesization control part 5 stores printing information 103c, which is synthesized with character information 103b to be changed for each stored character information page, in a printing information storage part 6. A printing part 7 prints stored printing information 104 onto the recording paper sheet.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a document printing device that prints print information transferred from a host device onto recording paper.
In particular, the present invention relates to a document printing device that prints characters expressed in a fixed format.

0002

[Prior Art] Conventionally, when printing a document expressed in a fixed format, this type of document printing device has been designed to reduce the amount of printing information transferred from a host device and increase the printing speed. The format part is printed on recording paper, and only the print information other than the fixed format is transferred from the host device and printed on the fixed format.

0003

[Problems to be Solved by the Invention] The conventional document printing device described above requires printing the fixed format portion on recording paper in advance, and furthermore, when printing multiple types of fixed format documents, the recording paper must be replaced. There is a drawback that it must be done.

0004

[Means for Solving the Problems] The present invention provides a document printing device including means for outputting a print code received from a host device;
means for converting into characters of a character font corresponding to the input printing code; means for transferring the converted characters to a storage unit when the information does not change from page to page; and the stored characters and the characters change from page to page. and means for printing the printed information on recording paper.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings. FIG. 1 is a block diagram of one embodiment of the present invention.

[0006] Print information is transferred from a host device to a printing device using a print code. The print code transferred from the host device is input from the print code input section 1 and processed by the print code analysis section 2.

The printing code analysis section 2 has a function of converting the input printing code into characters by referring to it in the character font section 3, and converting the result of character conversion into a fixed format information storage section using the control code included in the printing code. 4 or the print information composition control section 5. As a result, among the print information, information that does not change depending on the page is transferred to the fixed format information storage section 4, and information that changes depending on the page is transferred to the print information composition control section 5.

[0008] The fixed format information storage unit 4 stores information that does not change from page to page among print information.
It retains its contents until cleared by a control code. The print information synthesis control unit 5 has a function of copying the information stored in the fixed format information storage unit 4 to the print information storage unit 6, and calculates the logical sum of the information transferred from the print code analysis unit 2, and calculates the logical sum of the information transferred from the print code analysis unit 2. It also has a function of writing the information into the print information storage section 6 again. As a result, fixed format information that does not change from page to page and information that changes from page to page are combined in the print information storage section 6. The printing unit 7 prints the print information synthesized in the print information storage unit 6 on recording paper.

FIG. 2 is a flowchart for explaining the printing code analysis and character composition processing of this embodiment. First, input the print code and analyze the type of print code. Print codes are broadly classified into format clear code, format start code, format end code, format copy code, and other print codes. In the case of a format clear code, the contents of the fixed format information storage section are cleared. In the case of a format start code, the print code following it is converted into characters and written into the fixed format information storage section. This process is repeated until the form exit code is transferred. In the case of a format copy code, the contents of the fixed format information storage section are copied to the print information storage section. In the case of other print codes, after converting into characters, the logical OR with the contents of the print information storage section is calculated, and the result is written into the print information storage section. With the above processing algorithm,
Analyzes print codes and synthesizes characters.

FIG. 3 is a diagram showing the print code and print result of this embodiment. FIG. 3(a) is an example of a print code transferred from a host device, in which a format clear code 1c is followed by a format start code 2c for storing fixed format information.
- Print code 3c and format end code 4c are transferred. The print code 3c here transfers only print information that does not change from page to page. Next, a format copy code 5c and a print code 6c for forming unique print information for the first page are transferred. The printing code 6c here is 1
Of the printed information on the page, only the remaining information excluding the printed information that does not change from page to page is transferred. continuation,
In the same way as the first page, the unique print information of the second and third pages is transferred.

In FIG. 3(b), when it is desired to obtain a print result consisting of three pages shown at 11, 12, and 13, first, print information 14 that does not change from page to page is set as fixed format information. Next, print information 15 obtained by removing print information 14 that does not change from page to page from the print information of the first page becomes unique print information of the first page. Similarly, numbers 16 and 17 become unique print information for the second and third pages, respectively. Therefore, when printing using this embodiment, the host device first transfers 14 fixed format information, and then 15.
Only the unique print information of 16 and 17 will be transferred.

0012

Effects of the Invention As explained above, the present invention has a control unit that combines print information transferred from a host device and stored in a storage unit with print information transferred from a host device, thereby making it possible to When printing a document expressed in a document, it is not necessary to print a fixed format part on a recording paper in advance, and furthermore, a plurality of types of fixed format characters can be printed without changing the recording paper.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention.

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

FIG. 3 is a diagram showing print codes and print results of this embodiment.

[Explanation of symbols]

1 Print code input section 2 Print code analysis section 3 Character font section 4 Fixed format information storage unit 5 Print information synthesis control section 6 Print information storage section 7 Printing section

Claims (1)

[Claims] 1. Means for outputting a print code received from a host device, means for converting into characters of a character font corresponding to the input print code, and when the converted characters are information that does not change depending on the page. It is characterized by comprising means for transferring to a storage section, means for outputting printed information that is a combination of the stored characters and the characters that change for each page, and means for printing the printed information on recording paper. document printing device.