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IMAGE PROCESSING
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7.5 Laser Driving PC Board
Image signals processed on the LGC board are then processed by ASIC for writing control and Laser
driving PC board. The signal is then laser controlled and written on the drum.
1) Setting of effective image area
- Top, bottom, left and right margins
2) Horizontal synchronization signal (H-sync) clock generation section
- Reference clock signal in the printer section synchronized with H-sync and its signal.
3) Laser drive section
- ON/OFF control of the semiconductive laser and APC (Auto Power Control).
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