Optical Path - Ricoh B230 Service Manual

6.5.2 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 [E] and black [D] are directed to the lower part of the
polygon mirror. The LD mirrors (see the previous page) deflect the laser beams for
magenta and black towards the lower polygon mirror.
The WTL [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 WTL is adjusted in the factory.
The speed of the polygon mirror depends on the selected mode and model (see below).
Polygon motor
Mode
speed (rpm)
Plain
/Middle Thick
OHP/Thick
SM
Process line
speed (mm/s)
32,598 138 mm/s
36,378 77 mm/s
6-23
Print speed
(ppm)
C1a: 25
C1b: 30
16
B230/B237