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The command $02 is used to activate double height printing. This command clears the print buffer and for
this reason it must not be transmitted immediately after an ASCII string, otherwise this string will be erased.
It is better, therefore, to transmit the command $02 after a (CR) $0D so that the string is printed first and, on
clearing the buffer, double width printing is enabled. When this printing mode is set, the number of characters
per line remains 24 for the 24-column printer and 40 for the 40-column printer. Double height characters
are 6 dots wide and 20 dots tall. The ASCII characters which can be printed, as may be seen from the self-
test, start from code $1E through to code $FF (software release 4.3) or from code $17 to code $1F (software
release 5.3).
ASCII: - Hex: $03
Expanded printing
The command $03 is used to activate expanded printing. This command clears the print buffer and for
this reason it must not be transmitted immediately after an ASCII string, otherwise this string will be
erased. It is better, therefore, to transmit the command $03 after a (CR) $0D so that the string is printed
first and, on clearing the buffer, expanded printing is enabled. When this printing mode is set, the
number of characters per line is exactly halved in comparison with small characters; a printed line of a
24-column printer, therefore, contains 12 characters, and a 40-column printer contains 20. Expanded
characters are 12 dots wide and 20 dots tall. The ASCII characters which can be printed, as may be
seen from the self-test, start from code $1E through to code $FF (software release 4.3) or from code
$17 to code $1F (software release 5.3).
ASCII: - Hex: $04
Restores normal printing
The command $04 is used for reverting to printing in small characters (it is identical to $00 and is used
when it is impossible to use the latter). If, for example, double height or double width printing had been
set and the user wishes to return to printing in small characters, he/she transmits the code $04. This
command clears the print buffer. For this reason this command must not be transmitted after an ASCII
string , otherwise the string will be erased. It is better, therefore, to transmit the command $04 after a
(CR) $0D so that the string is printed first and, on clearing the buffer, small character printing is restored.
A small character is 6 dots wide and 10 dots tall. The ASCII characters which can be printed, as may be
seen from the self-test, start from code $1E through to code $FF (software release 4.3) or from code
$17 to code $1F (software release 5.3).
ASCII : - Hex: $0A
Forward feeds one line
The command $0A forward feeds the printer by one line. If there are any characters in the line buffer,
the buffer itself is automatically printed. A line feed is equivalent to 10 dots of normal printing, the paper
moves faster than it would when printing due to the automatic activation of a magnet which speeds up
the paper feed.
ASCII : - Hex: (n) $0B
PRINTER FUNCTIONS
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