Star Micronics Line Thermal Printer - Manual (Page 17)

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STAR Line Mode Command Specifications 3-1
3. COMMAND DETAILS
3.1. Explanation of Terms
• Reception buffer
The buffer for storing data (reception data) received from the host, as it is called the reception buffer.
Reception data is temporarily stored in the reception buffer, then processed sequentially.
• Line buffer
The buffer for storing image data for printing is called the line buffer.
• Line buffer full
The state in which the buffer has no more space available is called line buffer full. When the buffer is full in standard
mode, data in the line buffer is printed and a line feed is performed when new print data is processed. This is the
same as a Line Feed. When the line buffer is full in the page mode, the printer move the print position to the head of
the next line then starts with the new print data.
• Top of line
The top of line is a state that satisfies the following conditions.
- There is currently no print data in the line buffer.
- The position is not specified with the horizontal direction position command.
• Printable region
This is the maximum printable area with the printer’s specifications.
• Print region
This is the printing area specified by a command. (Print region ≤ printable region)
• ANK character base line
Ay
Base Line
24 dots
20 dots