Step 3: Writing
•Data from PC is received by formatter (1) and passed to DC controller (2) which controls laser unit (3)
•Scanning mirror (4) is
turned clockwise by scanning motor
•Laser beam is reflected
off scanning mirror, focused by
focusing lens (5) and sent to the mirror (6)
•Mirror deflects laser
beam to a slit in the removable cartridge
and on to the drum (7)