Disclosed is a method to allow PCs equipped with a projector or other focused light emitting capability
to print hard copies of pictures and documents without a printer. A focused light source, such as a
projector, can be directed at light sensitive paper (aka photo reactive paper, photo sensitive paper) to
expose an image. The image can be exposed a portion at a time or entirely at once depending on the
size of the light source compared to the size of the paper.
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INC, HP, "PC PRINTING WITHOUT PRINTERS", Technical Disclosure Commons, (November 20, 2018)