Method for controlling several stepping motor modules with prior loading of ramp data
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United States of America Patent
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-
Feb 19, 2002
Grant Date -
N/A
app pub date -
Oct 2, 2000
filing date -
Jan 29, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a method and device for controlling several stepping motor modules in printing or copying machines, sets of ramp data are centrally calculated in a computer in a calculation phase and are transmitted via a bus system to one logic unit each in a loading phase. The ramp data are stored in the stepping motor modules in non-volatile memories and are loaded to corresponding main memories depending on operating conditions. When a stepping motor module is operational, the current set of ramp data is transmitted by a control unit. A start signal transmitted by the control unit initiates the conversion of the set of ramp data selected in the corresponding logic unit into impulses of variable distance.
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