An ImageWriter LQ has a DIP switch that configures the form length of
continuous paper at 11 or 12 inches. A4 is 11.69 inches. When printing
from the driver with A4 and continuous paper selected, the perforation
position changes -- for obvious reasons.
Changing the position of switch 1-4 (Page Length) makes no difference in the
page length when printing from a Macintosh. The page length remains 11 inches
whether switch 1-4 is in the ON or OFF position.
To correct this problem, change the position of switch 1-5 (Perforation Skip),
then select A4 page length and continuous paper, and print.