Canon BJ-230 - Manual (Page 35)

Performing Automatic Line Feeds
You can set the printer so that it performs an automatic line feed each
time it recieves a carriage return. Then, when the printer receives a
carriage return code from the computer, it moves to the beginning of the
next line.
You only need to set this function if you are using an application
program that does not include a carriage return with a line feed.
To set the automatic line feed function, follow these steps:
1. Make sure the printer is turned off.
2. Press and hold the
ON LINE, LF/FF , and PRINT MODE
buttons, and then press the POWER button until the beeper
sounds.
If you notice an extra blank line between each line printed, turn off the
printer to cancel this function.