In The Sub-Scanning Direction (Vertical Scan Direction; In The Scanning Direction (Horizontal Scan Direction; Exposure Section - MINOLTA-QMS Magicolor 2200 Series Manual

3

Exposure section

The laser light from the Laser Unit creates an electrostatic latent image on the OPC drum. When the main circuit board
(PWB-A) receives a print signal from the controller, the transport motor and polygon motor (M6) are rotated, and print-
ing begins. The image is aligned on the printing position of the paper as shown below.

3-1 In the Sub-scanning direction (Vertical scan direction)

When the image transfer belt position sensor is set on, the printer sends a TOD signal to the controller, and printing
starts in the sub-scan direction.

3-2 In the Scanning direction (Horizontal scan direction)

The laser unit receives a video signal from the controller by the laser controller board (PWB-C) SOS sensor signal.
Laser light is emitted, and printing starts in the main scan direction.
OPC drum
Reflector mirror
SOS sensor
Laser diode
Polygon motor (M6)
C-9
PWB-A
PJ12A
1
8
PJ27A
1
6