CRUM UNIT MOUNTABLE IN CONSUMABLE UNIT OF IMAGE FORMING APPARATUS AND IMAGE FORMING APPARATUS USING THE SAME
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United States of America Patent
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Issued Date -
May 7, 2015
app pub date -
Jul 23, 2014
filing date -
Nov 1, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A Customer Replacement Unit Monitor (CRUM) unit which is mountable on an image forming apparatus is provided. The CRUM unit includes a plurality of interfaces configured to be connected to the consumable unit and a power extracting circuit configured to, when a clock signal is received through one of the plurality of interfaces, extracts power from the clock signal, and the clock signal is a signal where a high value and a low value repeatedly alternate even in an idle section where a data signal is not received. Accordingly, the CRUM unit may operate even in the idle section by extracting power from the high value.
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