Laser Exposure Process - Konica Minolta BizHub C360 Service Manual

9. WRITE SECTION (PH SECTION)
9.2.2

Laser exposure process

A. Operation
1. The K laser light enters the cylindrical lens via the return mirror (light source). The
Y, M, and C laser light enter the cylindrical lens via the synthetic mirror and return
mirror (light source).
2. At the cylindrical lens, each laser light is condensed in the vicinity of the polygon
mirror.
3. Since the angle of incidence for each color of laser light varies, the laser light
reflected by the polygon mirror is reflected in a different angle for each color.
4. The condensing angle of each color of laser light is corrected by the G1 and G2
lenses and then reaches each return mirror.
5. The K laser light is condensed on the photo conductor surface via the G3 lens and
return mirror/1. The Y laser light is condensed on the photo conductor surface via
the return mirror/1, G3 lens, and return mirror/2. The M laser light is condensed on
the photo conductor surface via the return mirror/1, return mirror/2, G3 lens, and
return mirror/3. The C laser light is condensed on the photo conductor surface via
the return mirror/1, G3 lens, return mirror/2, and return mirror/3.
Laser drive board/C
(LASDB/C)
Laser drive board/M
(LASDB/M)
Laser drive board/Y
(LASDB/Y)
Laser drive board/K
(LASDB/K)
Polygon mirror
G1 lens
Return mirror/2
36
Return mirror (light source)
Synthetic mirror (Y,M,C)
Y M
G3 lens G3 lens
Return mirror/3
G1 lens G2 lens
Theory of Operation Ver. 1.0 Jul. 2009
Index board (INDEXB)
Cylindrical lens Index lens
G2 lens
C K
G3 lens
Return
mirror/2
G3 lens
Return mirror/1
Return
mirror/1
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