Programming 3 – 15
The character size switches to 10 characters per inch (CPI) after the
printer receives the DC2 command. The character size becomes 12 CPI
when the ESC: command is received and 17.1 CPI when the SI command
is received.
Note: When the power is turned on while the TOF switch is depressed, the printer is set
to 17.1 CPI. You can also set the printer to 17.1 CPI at power ON by setting internal switch
2 to the condensed print mode. The printer will print in 17.1 CPI until power is turned
OFF or a command is sent to change the character size.
You can double the width of 10, 12, and 17.1CPI print by inserting the
US command after the character size you want doubled. This command
doubles the size of characters that follow the command on one line. The
DC4 command can also be implemented on the same line as an SO
command. The DC4 command cancels double width printing before the
end of a line. This enables you to emphasize specific words or characters
within a single line, and to automatically return to your preselected type
size.
The ESC W 1 and ESC W 0 commands override both DC4 and SO
commands, and can be utilized to either permanently implement or
cancel double-width printing within a program or document. The ESC
W 1 command implements double-width printing; the ESC W 0 command
cancels it.
Character size can be changed in the middle of a line unless your
software package does not allow you to do that. The table below
indicates the maximum number of characters per line in each character
size:
Size Command Maximum Characters per line
10 CPI DC2 80
12 CPI ESC : 96
17.1 CPI SI 132
5 CPI DC2 SO 40
6 CPI ESC : SO 48
8.5 CPI SI SO 66
Note: Some forms of BASIC will not allow you to print more than 80 characters on a line.
Check your BASIC manual to see if you can override this limitation by using a WIDTH
statement.
