Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1998-05-19
2000-08-15
Smith, Matthew S.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
B41J 206
Patent
active
061025275
ABSTRACT:
An object of the present invention is to provide an image forming apparatus for forming images which are always and stably high quality regardless of changes of ambient conditions. In the image forming apparatus, a counter electrode is disposed facing a toner holder for holding at least one color toner, to generate a potential difference between the toner holder and the counter electrode by use of various types of power supplies. Between the toner holder and the counter electrode, a counter electrode is interposed, which is provided with a plurality of gates disposed on an insulating substrate and electrode groups respectively disposed around the plurality of gates. According to the potential difference between the toner holder and the counter electrode, it is controlled whether or not the toner is caused to pass through the gates. In the image forming apparatus, a resistance value of a cleaning member is detected for removing the toner stuck on the control electrode. On the basis of the detected resistance value, ambient conditions are determined. On the basis of the conditions, a state of at least one of elements in the image forming apparatus is controlled.
Tani Kenji
Tsukamoto Koji
Wakahara Shirou
Conlin David G.
Moldafsky Greg
Sharp Kabushiki Kaisha
Smith Matthew S.
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