Ricoh G133 - Optical Path

Laser Exposure
SM 6-17 G133
Detailed
Descriptions
6.3.2 OPTICAL PATH
The laser beams for black [A] and yellow [B] are directed to the upper part of the polygon
mirror [C]. Laser beams for magenta [D] and cyan [E] are directed to the lower part of the
polygon mirror [C].
The L2 lens [F] corrects the main scan line. Without this component, the line bends out
towards the middle of the main scan. The central bend of the L2 lens is adjusted in the
factory.
The speed of the polygon mirror depends on the selected mode and model (see below).
Mode
Resolution
(dpi)
Polygon
motor speed
(rpm)
Process line
speed (mm/s)
Print speed
(ppm)
Remarks
600 x 600 (1
bit, 2-bit)
24,212 205 40 2 beams
B/W
(except
OHP/Thick
paper)
600 x 600
4-bit
36,377 77 17 -
600 x 600 (1
bit, 2-bit)
24,212 205 40 2 beams
Color
(except
OHP/Thick
paper)
600 x 600
4-bit
36,377 77 17 -
OHP/Thick
1 to Thick 4
600 x 600 (1
bit, 2-bit)
27,165 115 25 -