MX-M700N SCANNER SECTION D – 3
(3) Image signal flow
The image signal converted into electric energy (analog signal) is A-D converted on the CCD PWB. Image processes such as white balance
and shading correction are performed on the scanner control PWB. The image signal is then sent through the mother board to the MFP control
PWB.
In the MFP control PWB, image process is performed according to the setting content of the operation panel. The image data are converted
into laser lighting signals (VIDEO signals), and sent through the mother PWB and the PCU to the LSU (Laser Scan Unit).
In the LSU, the VIDEO signals are converted into laser beams, which are radiated onto the drum.
(4) Carriage (lamp unit) shift (scan) speed
The carriage scan speed depends on the copy magnification ratio.
Speed up to 171% = 220mm/s
Speed of 172% - 400% = 110mm/s
(5) Timing chart
Platen timing chart
DSPF duplex timing chart
LSU
DRUM
MOTHER PWB
CCD UN
CIS
HDD
MFP CONTROL PWB
PCU PWB
Copy lamp unit
PSW
CCD
MHPS
MIMD
MM
Feed Return
Home position Home position
Scan
CCD
SPOD
CIS
SPPD4
SRRC
SPFM
1030mS
181mS
55mS
94mS
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