Cones
detect light to retina
Chlorophyll :)
Photoreceptor
This implies that the subject is in a dark room.
A photoreceptor detects light rays. It works somewhat like taste receptors do.
The photoreceptor drum or belt is a xerographic machine manufactured by Xerox Corporation is like the film in a camera. It is the surface upon which a virtual image is placed and from which the real or developed image is created and transfered to the paper that eventually leaves the machine as a copy or a computer print out.
Which photoreceptor is responsible for viewing your plate at the dinner table
A Toner Cartridge holds toner and dispenses it as needed to make copies (in a copier) or to print pages (in a printer). Another element in xerographic copiers is the photoreceptor drum. This is the surface to which the toner adheres before being transfered to the paper. The photoreceptor has a long but finite useful lifetime and must be replaced occasionally. Some copiers/printers have drum cartridges which can be changed out by the user. The alternative would be to have a service person open the machine and replace the photoreceptor drum. So, a drum cartridge alows the user to replace the photoreceptor drum and a toner cartridge allows the user to replenish toner supplies, both easier than before cartridges were developed for this purpose.
The 914 drum is a photoreceptor drum for the Xerox 914, the first fully automatic plain paper copier. The machine has not been made or maintained for decades. You would probably have to go to a technology museum to find one, although you might ask whether the Xerox Historical Archive, at Xerox Corporation in Webster, NY, might have an extra they can spare.
Phytochrome is the photoreceptor that allows plants to detect day length.
Cones
photoreceptor
Glutamate
Photoreceptor
photoreceptor
detect light to retina