Contamination control for xerographic developing systems
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United States of America Patent
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-
May 19, 1987
Grant Date -
N/A
app pub date -
Mar 3, 1986
filing date -
Mar 3, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To control pressures in the developer housing of a xerographic machine, a fan with inlet connected to the housing interior through a particulate filter is used. To reduce the effect of filter loading, a mixing chamber is interposed having a fresh air inlet, the dimension of which is substantially greater than the passage from the developer housing so that as the pressure drop across the filter rises as the filter traps more and more particles, the flow of contaminated air from the developer housing remains substantially constant.
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