Increase Laser Printer Resolution

Pulse-width modulator is superior to super-pixel technique for gray-scale and doesn't need a higher-resolution engine

The AD9560 pulse-width modulator is a monolithic IC designed specifically to enable laser-printers to provide increased resolution and more realistic "gray-scale" images, even with a standard 300-dot-per-inch (dpi) "engine." It does this by setting the laser-diode's excitation pulse width and position, for each pixel, in proportion to a control word supplied bu the printer controller. Read full article


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Bill Schweber