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
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.
Programming 3 – 15 Check your BASIC manual to see if you can override this limitation by using a WIDTH
statement.