MX-M700N LSU SECTION i – 2
2. Operational descriptions
A. Outline
This section performs the following operations.
Image data sent from the MFP (image process circuit) through the
mother board and PCU are converted into laser beams to radiate
onto the drum surface.
[Laser optical path]
* This unit must not be disassembled in the market.
B. Polygon mirror motor
The number of mirror surfaces and the motor RPM are reduced to
reduce noises and increase reliability.
C. Outline of LSU specifications
Effective scan width : 297 mm
Resolution : 600 dpi
Beam diameter : Main scan = 60 to 85 Pm
Sub scan = 75 to 110 Pm
Laser power : 55/62ppm: 0.385 r 0.04mW
70ppm: 0.480 r 0.04mW
Laser power : 770 to 795 nm
3. Disassembly and assembly
A. Laser scan unit (LSU)
(1) LSU
1) Pull out the multi paper feed tray, and remove the manual
paper feed cover F.
2) Pushing the lower part, remove the right cabinet center.
Model
Number of
mirror surface
Rotating
speed
Bearing Remarks
55/62ppm 14 surfaces 34000 rpm AIR Superior in
silence
70ppm 14 surfaces 40000 rpm AIR
No. Unit
1LSU
(1)
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