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IBM Proprinter XL Emulation 7-12
Set Horizontal Tab Stops
Escape sequence: ESC D n1...n28 NUL
Hexadecimal: 1B 44 n1...n28 00
This command clears all previously set horizontal tab stops and sets
a new tab stop at each of the columns specified by the variables
n1...n28. These variables must be listed in ascending order; that is,
the value of each variable must be greater than the one preceding it.
Any n value of 0 or less than that of the one preceding it terminates
the command.
At power-up or upon receiving the Initialize Printer command, the
printer automatically sets a horizontal tab stop at every eighth
column. These are the default positions.
If you change the character pitch after the horizontal tab stops have
been set, the tab stop positions change accordingly. However, the
expanded print mode does not affect the horizontal tab settings.
Restore Default Tab Stops
Escape sequence: ESC R
Hexadecimal: 1B 52
This command resets all tab stops (both vertical and horizontal) to
their default values.
Vertical Motion Commands
The vertical motion commands are those that control forward or
reverse movement of the paper within the printer.
Line Feed
Control character: LF
Hexadecimal: 0A
This command causes the printer to print the current contents of the
print buffer and then position the printhead at the next print line.