Panasonic UF-8300, Service Manual

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196
UF-7300/7200
UF-8300/8200
6.3.4.2. Laser Beam
The laser beam is pulsed On and Off by the digital signal (nVIDEO) to form a latent image of two different
voltage potentials on the drum, as shown below.
Laser Diode Specification
6.3.4.3. Collimator Lens
The Collimator Lens converts light from the Laser Diode to parallel light. This aids in scanning and provides
better convergence to a dot.
Item Minimum Standard Maximum
Oscillation Wavelength 770 785 800 nm
Output Light Power (OPC Drum Surface) 0.315 0.350 0.385 mW
Laser Diode
Collimator Lens
Timing Sensor
Cylindrical Lens
F- Lens
Reflection Mirror
Polygon Mirror
Reflection Mirror
Cover Glass
OPC Drum
Scanning Direction
Sub-scanning Direction
Turn Laser Beam ON and OFF
corresponding with the images.
: Laser Beam-"ON" (Drum discharged)
: Laser Beam-"OFF"
" ON "
" OFF "
Laser Scanning Direction
Drum Rotation
Laser
Collimator Lens
5 mm