2GN/2GP/2GR
2-1-7
(2) Image printing
The image data scanned by the CCD PWB (CCDPWB) is processed on the main PWB (MPWB) and transmitted as image
printing data to the laser scanner unit (LSU). By repeatedly turning the laser on and off, the laser scanner unit forms a
latent image on the drum surface.
Figure 2-1-9 Laser scanner unit (1)
(1) Laser diode PWB (LDPWB)
(2) Collimator lens
(3) Cylindrical lens
(4) Polygon motor (PM)
(5) Polygon mirror
(6) f
θ lens
(7) Mirror
(8) Mirror
(9) BD sensor mirror
(10) Cylindrical correcting lens
(11) BD sensor
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