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8. Write section (PH section)
Theory of Operation Ver. 1.0 Sep. 2008
22
bizhub C200
Composition/Operation
8.2
Operation
8.2.1
Exposure path
• 4 units of the printer head are used for exposure process.
• The surface of the photo conductor is irradiated with a laser light and an electrostatic
latent image is thereby formed.
• The polygon mirror, which has only four faces.
• The laser light emitted from the laser diode scans one line for each face of the polygon
mirror.
Y
M
C
K
Transfer belt
2nd image transfer roller
LD/K
LD/Y
LD/M
LD/C
PC drum Y
Direction of
rotation of
the PC drum
Beam
One lines
One scan
Surface of the PC drum
A02FT2E101AA
PC drum
Polygon
mirror
Laser diode
Direction
of rotation
of the PC
drum
Beam
Return mirror 2
G2 lens
G1 lens
Return mirror 1
Theory of Operation Y109670-2