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2.7.3 Laser synchronizing d
The machine has four beam detector sensor boards (B
optics housing unit. The four BD boards detect the fol
optics-housing unit. The four BD boards detect the fol
•
[A]: Scanning start position for black
•
[B]: Scanning start position for cyan
•
[C]: Scanning start position for magenta
•
[D]: Scanning start position for yellow.
The printer recognizes each color from the time that th
Main Scan Start Detection
4 beams are detected by the BD PBA at the scanning
signal. The following diagram shows the data scannin
Cyan (& Yellow) use the same polygon motors scanni
[A]
Service Manual
2. Product d
description
detectors
BD PBA). There is one at each corner of the laser
llowing:
llowing:
hey are detected.
start point and create the horizontal sync (Hsync)
ng direction for each color. Black (& Magenta) and
ng in opposite directions.
[C
[C
C]
C]
[B]
2-4
46
[D]
[D]
SAMSUNG ELECTRONICS
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