Abstract: A method of forming an electrostatic latent image includes printing operation and toner recovering operation. the printing operation includes charging, forming an electrostatic latent image, developing, and transferring operations. The toner recovering operation includes the step of charging the photosensitive drum in timed relation to the rotation of the photosensitive drum after printing operation so that reversely charged toner deposited on the charging roller migrates from the charging roller to the photosensitive drum. The toner migrated from the charging roller to the photosensitive drum is recovered into a developer. An apparatus for forming an image includes a charging roller, photosensitive drum, developing roller, and transfer roller.

Abstract: A bracketless extension rod includes a locking mechanism for holding the rod in place between two opposing support surfaces. The rod includes an inner rod section telescopingly fitted within channel means formed on a outer rod section. The locking mechanism includes a locking plate slidably received within the channel means and a tang means affixed to the locking plate. An extendable lever mechanism is attached to the inner rod section and to the locking plate. The tang permits the rod sections to move only in the direction of extension of the rod by engagement with opposing walls of the channel means. When extended, the lever mechanism places the rod in compression between two opposing supporting surfaces.

Abstract: A laser light applicator comprises a laser light conductor fiber and a light guiding element of larger diameter than the fiber, distally connected thereto by means of a butt joint. The light conductor element is provided at its distal end with a ball head which has been formed with plane, blackened, ground surfaces converging to provide a wedge having at its top a truncated unblackened edge. The ball-head diameter is preferably between 1.5 and 2.0 mm, the plane surfaces being angled by between 54.degree. and 60.degree. with respect to each other.