Optical Path - Gestetner G060 Service Manual

LASER EXPOSURE

6.3.2 OPTICAL PATH

The laser beams for cyan [A] and yellow [B] are directed to the upper part of the
polygon mirror [C], and those for magenta [D] and black [E] are directed to the
lower part of the polygon motor. 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 (see below).
Resolution
Mode
(dpi)
B/W 600 x 600
(except 1,200 x 600
OHP/Thick
1,200 x 1,200
paper)
Color 600 x 600
(except 1,200 x 600
OHP/Thick
1,200 x 1,200
paper)
OHP/Thick 600 x 600
1,200 x 600
1,200 x 1,200
G060
[E]
[B]
Polygon motor Process line
speed (rpm) speed (mm/s)
21,850
29,528
29,528
29,528
29,528
6-18
[F]
[C]
G060D201.WMF
Print speed
(ppm)
185 38
125 28
125 28
62.5 14
62.5 10
[A]
[D]
Remarks
Dual beam
writing
SM