C O N F I D E N T I A L
Paper roll
Overview of data processing
Ver. 10.01
p. 10
Overview of data processing
Character Data and Normal Commands
The printer stores data sent from the host computer in the receive buffer temporarily, and then the printer interprets the data
and classifies them into commands or character data sequentially. If the data from the receive buffer is a normal command,
the printer processes the command corresponding to its function; for example, if the data interpreted is
ESC 3
, the printer
changes a setting value for the line spacing, and if it is
LF
, the printer prints the data in the print buffer and feeds the paper
one line.
If the data from the receive buffer is character data, the printer reads the appropriate font data from the resident character
generator and writes image data to the print buffer.
Real-time Commands
The printer stores data sent from the host computer in the receive buffer, interprets the data, and processes the commands
corresponding to their function one line at a time. The real-time commands are the commands that consist of a
DLE
extension, such as
DLE EOT
or
DLE ENQ
. They are processed immediately. The real-time commands are ignored as
undefined codes in the main processing.
OVERVIEW OF DATA PROCESSING
Summary of Contents for TM-L90 series
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