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CR(0DH) : This command prints the data in the print buffer and feeds one line. If a LF is sent
immediately after CR, it will be ign ored to avoid double printing. When the line buffer is full, ie
upon receiving the 24
th
and 40
th
characters in the case of OM190 and OM192, respectively, the
printer w ill automatically print the data in the buffer. If CR or LF is sent, they will be ignored in
this situation.
DOUBLE WIDTH(0EH) : Upon receiving this command th e printer will go in the double wide
mode and remains in this mode until terminated by the single wide command or completion of
the current line. If the last character of a line is double wide but there is room only for a single
wide character, it will be printed in single width.
SINGLE WIDTH(0FH) : Printer reverts back to single width printing. Single and double w ide
characters can be combined any where on a line.
RESET(11H) : This commands causes the printer to be set to power up default conditions.
NOTE THAT THIS WILL NOT CLEAR THE BUFFER OF ANY DATA PREVIOUSLY SENT.
UNDERLINE(15H) : Characters sent after this command will be underlined. Tabs are not
underlined. Underlining is terminated by the underline release command or upon completion of
the current line.
UNDERLINEL RELEASE(1 8H) : Terminates the underline mode.
REVERSE PRINT(1AH) : This command causes the printer to print white on black . You can
toggle between reverse and normal anywhere on a line but the reverse print mode will
automatically be terminated at the end of a line.
DOUBLE HEIGHT(1AH) : Upon receiving this command t he printer will go in the double high
mode and remains in this mode until terminated by the single wide command or completion of
the current line.
NOTE THAT DOUBLE HEIGHT AND SINGLE HEIGHT CHARACTERS CANNOT BE
COMBINED ON THE SAME LINE.
GRAPHICS(1BH,N) : This command causes the printer to go in the bit im age printing mode.
The n umber of graphic bytes sent w ill depend on the type of mechanism. For each graphic byte
sent to the printer, 6 out of 8 bits are used to form the graphic string (LSB is the right most dot).
N is the number of times the string will be repeated for a repetitive pattern, 0N255 lines. The
print buffer w ill be printed first if not empty.
EXAMPLE : TO REPEAT A STRING OF DATA BYTES,D1----D24 OVER TWO ROWS FOR
OM190: SEND : 1BH,D1-------------D24. FOR A NON-REPEATED STRING SEND :1BH,01H,D1-
---D24.
11.2.2 EPSON ESC/POS COMMAND DESCRIPTION
TAB(09H) : : Moves the print position to the next horizontal tab position. The default tab
positions are at every 8 character intervals. This command will be ignored unless the nest
horizontal tab position is set.
LINE FEED(0AH) : Prints the data in the print buffer and feeds one line based on the current
lin e spacing . IF LF+CR IS SENT, CR WILL BE IGNORED TO AVOID DOUBLE FEEDING.
FORM FEED(0CH) : Prints the current line and feeds the number of lines programmed by using
the ESC C command.