Electrophotography – Control of electrophotography process – Control of developing
Patent
1998-12-21
2000-05-23
Moses, Richard
Electrophotography
Control of electrophotography process
Control of developing
399281, 399283, G03G 1508
Patent
active
06067427&
ABSTRACT:
A method and apparatus for removing remaining toner from an image forming apparatus, when a non developing time is detected during a performing of printing, a supply voltage applied to a supplying roller is increased to a level higher than a developing voltage applied to a developing roller. When the supplying roller having the supplying voltage of a voltage level higher than the developing voltage is in contact with the developing roller, electric flux is directed from the supplying voltage having a high electric potential to the developing voltage having a low electric potential due to a difference of intensities of electric fields between the supplying roller and the developing roller, while toner having negative charge moves from the developing roller to the supplying roller in a reverse direction to that of the direction of the electric flux to remove the remaining toner.
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patent: 5324884 (1994-06-01), Honda et al.
patent: 5473417 (1995-12-01), Hirano
patent: 5826138 (1998-10-01), Tsuru et al.
Bushnell Esq. Robert E.
Moses Richard
Samsung Electronics Co,. Ltd.
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