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How different? They still use light for drum polarization, right?
Yes but LEDs are smaller and more powerful than a laser assembly so the whole process is faster.
In the time it takes to energise the drum with a laser, the LED panel can do all 4 inks.
Cool, that seems like a new take on things 👍.
https://en.m.wikipedia.org/wiki/LED_printer
Fewer parts.
Yeah, thought as much. LEDs are cheaper than lasers, so stack a bunch of them in a line, polarise the drum, bam, you have an image.
Basically, this is the only advantage. And laser heads break very very rarely. You litelarly have to drop the printer from a considerable height in order to break the laser head mechanism.
But, I can see the appeal. Laser heads and mechanisms are more expensive to manufacture.