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Laser vs LED
Item
LED
Laser
Size
Compact
Large optical system
Number of
components
Low due to modular design
High due to the need to combined laser, circuits, motor, mirrors, etc.
Device installation
Simple
Complex adjustment after installation
Installation angle
Any angle OK
Horizontal
Dot uniformity
Good
Dot size changes from center to edges.
Light output
uniformity
Uniformity correction required
Good
Acoustic noise
No noise because device is fixed
Polygon mirror motor noise
Service life
Longer than machine where installed
Maintenance required
(by Kyocera's analysis)
Related link
Data sheet
Electrophotography process
Related site
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