Service manual

LASER EXPOSURE
SM 6-21 G130/G131
Detailed
Descriptions
6.3.2 OPTICAL PATH
The laser beams for cyan [C] and yellow [A] are directed to the upper part of the
polygon mirror [B]. 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).
Mode
Resolution
(dpi)
Polygon motor
speed (rpm)
Process line
speed (mm/s)
Print speed
(ppm)
Remarks
600 x 600
1,200 x 600
38268 162
G130: 32
G131: 35
B/W
(except
OHP/Thick
paper)
1,200 x 1,200 38268 81 17
600 x 600
1,200 x 600
G130: 29528
G131: 38268
G130: 125
G131: 162
G130: 28
G131: 35
Color
(except
OHP/Thick
paper)
1,200 x 1,200 38268 81 17
OHP/Thick
600 x 600
1,200 x 600
1,200 x 1,200
38268 81 14
G130D515.WMF
[C]
[A]
[E]
[D]
[B]
[F]