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6. LASER EXPOSURE
An electrostatic latent image is formed on the surface of the PC Drum by a laser light emit-
ted from the print head.
(1) FD Direction (vertical scanning direction)
• The Polygon Motor and Main Motor are energized by the PRINT signal, which starts a
paper take-up sequence.
• The printing action in the FD direction is started when the Image Transfer Belt Position-
ing Sensor is activated.
(2) CD Direction (horizontal scanning direction)
• The printing action in the CD direction is started by the SOS signal sent from the Laser
Control Board.
Polygon Motor (M3)
PC Drum
4131M005AB