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Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 7099612 | Toner cartridge used with electrophotographic image forming apparatus A toner cartridge used with an electrophotographic image forming apparatus includes a developing roller that develops an electrostatic latent image formed on an outer circumferential surface of a photosensitive drum, a toner supplying roller that supplies toner onto... | 08/29/2006 |
| 4538905 | Electronic image registration An electrophotographic printing machine utilizing a scanning light beam to produce generated characters is disclosed. The start of character generation is controlled by the edge position of paper receiving the image. Edge position of the paper is sensed p... | 09/03/1985 |
| 4501490 | Copying apparatus A copying apparatus provides that the magnification of a copy image of an original is reduced correspondingly to the width of a binding margin, so that when the formation of the binding margin on one edge portion of a transfer medium has been instructed, ... | 02/26/1985 |
| 4405224 | Electrophotographic apparatus having means for removing undesired charge concentrated on an edge portion of a photosensitive member An electrophotographic apparatus for producing one or more copied images of an original by forming an electrostatic latent image of the original on a photosensitive member whose width is narrower than that of a recording paper, developing the latent image... | 09/20/1983 |
| 4382672 | Illumination arrangement for elimination of gray borders in copying device In a system which uses a linear lens array or light transmitter array, reflective elements are placed at the array ends so as to intrude a slight distance into the optical path. Light reflected from these elements is used to eliminate unwanted edge border... | 05/10/1983 |
| 4116561 | Copying apparatus A copying apparatus having a changeable copying magnification is provided with focusing lens means having a variable focal length positionally fixed as a whole, and optical path length changing means for increasing or reducing the length of the optical pa... | 09/26/1978 |
