Developer restoring unit in an image forming apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 7, 1992
Grant Date -
N/A
app pub date -
Dec 18, 1989
filing date -
Dec 23, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A developer circular unit is detachably set in a copier or a copier type printer which print on images on a paper sheet with toner. The unit includes at least a developing device, a cleaner, and a developer conveying device having a pipe communicated with both the cleaner and the developing device and a toner flowing-back preventing mechanism. The action of the mechanism is automatically released by the first set of the unit in the copier or printer and/or the first use of the copier or printer after that first set.
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