KR900012764A - Efficient Printing Buffer Circuit in Point Matrix Printers - Google Patents

Abstract

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Description

Efficient Printing Buffer Circuit in Point Matrix Printers

Since this is an open matter, no full text was included.

1 is a hardware configuration diagram of the point matrix printer of the present invention,

2 is a flowchart of the printing buffer control of the present invention.

Claims (1)

In the point matrix printer, a central processing unit (cpu) uses a print driver (2) for driving the print head, a paper feedback driver (3), a room (4) and a wrap (5) with a built-in printing buffer. In order to connect and use the personal computer and the interface unit 6, and to control the printing buffer built in the RAM (5), the printing buffer remaining when stacking data on the first line in the central processing unit (cpu) It checks whether it remains enough to handle the full character, and if it remains, it is stacked and data of the first line is also stacked on the second line.However, for the third line, the amount of remaining printing buffer and the maximum number of characters to be entered Compare the amount of printing buffer based on the amount, and if the remaining printing buffer is large, the data will be accumulated. Otherwise, the data will be processed and stacked in the printing buffer. To built-in program that can control efficiently the printing buffer in the point matrix peurinteugi, characterized in circuit so that ※ Note: The disclosure is based on the initial application.