Konica Minolta REGIUS 190 Service Manual page 32

•
Main Scan Unit
Method
Incident Angle of Laser
One-Line Read
Frequency
f-θ θ θ θ Lens
Effective Scan Ratio
No. of Polygon Faces
Rotation Speed of
Polygon
Laser Wavelength
On-Plate Laser Inten-
sity
Imaging beam
diameter100
•
Beam-Reception Unit
Method
Beam Guide
Condenser Tube
Excitation-beam elimi-
nation
•
Erasing Unit
Method
Lamp Spec.
Filter Spec.
Laser drive using polygon mirror technology
Approximately 5º from the plate's normal
2 types; 7.54ms/line (133kHz), 5.20ms/line (192kHz)
3 groups of 3 (f = 253.6 mm)
Tilt compensation using cylindrical mirrors
82.8% ±49.7º)
7 (inscribed circle diameter: 82ø)
2 types; 1,137rpm, 1,648rpm
660nm
35mW or higher
100 ∫ or less (for both main and sub scanning)
Condensing mirror + Beam guide + Condenser tube + Short photomulti-
plier
Uses full reflection from acrylic plates
Ammonite condenser with multiple coatings on the inner surface
Realized using a excitation-beam cut filter
Erasure by halogen lamps
2 x 300W halogen lamps
Cuts light in the photo-multiplier's sensitivity range
REGIUS MODEL 190 Service Manual Ver.1.00 2004.11.01
1.1 Principal Specifications
5