Laser Synchronizing Detectors - Samsung MultiXpress M537x series Service Manual

2. Product Specifications and Description

2.7.3. Laser synchronizing detectors

[ M5370 ]
The machine has a beam detector sensor board (PD PBA). It is located on the corner (mark "A")
The PD board detects the point of scanning start.
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Main Scan Start Detection
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A beam is detected by the PD PBA at the scanning start point and creates the horizontal sync signal (Hsync).
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The picture above shows the data scanning direction.
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