Read Sharp MX-6240N / MX-7040N (serv.man32) Service Manual online
MX-7040N OPERATIONAL DESCRIPTIONS 13 – 25
B. Operational descriptions
(1)
Outline
Image data sent from the image process circuit through the PCU
are converted into laser beams which are radiated to the surface of
the OPC drum.
are converted into laser beams which are radiated to the surface of
the OPC drum.
In this model, 4-laser system is employed where 4-laser diodes for
each color are radiated. The LSU unit is composed of the optical
element from laser to the polygon mirror, the primary system
including the mirror which assures light path, and the main scan-
ning system.
each color are radiated. The LSU unit is composed of the optical
element from laser to the polygon mirror, the primary system
including the mirror which assures light path, and the main scan-
ning system.
(2)
Composition
Primary system
Scanning system
* Though four laser beams are actually radiated for one color, they
are illustrated as one beam.
Main scanning direction
* Though four laser beams are actually radiated for one color, they
are illustrated as one beam.
(3)
Outline of LSU specifications
LD1 - 4
LD1 - 4
LD1 - 4
LD1 - 4
Scanning width:
310mm
Resolution:
1200dpi
Beam diameter:
Main scan = 50 to 80µm, Sub scan = 50 to 80µm
Laser power:
Max. 0.350
W/1beam
LD wavelength:
775 to 790nm
C
M
Y
BK
REAR
FRONT
LD1 - 4
Scanning
direction
direction
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