FUJITSU DL9300 - Manual (Page 91)

PRINTING
4-6 User's Manual
CLEARING THE PRINT
BUFFER Press the LOAD and LF/FF buttons simultaneously to clear all data
from the print buffer. This method is useful when you cancel a print
operation and do not want to continue printing data already sent to
the printer.
This method does not change or clear MENU1 and MENU2 settings,
paper loading position settings, and downloaded fonts.