Printing apparatus and driving method therefor
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United States of America Patent
Stats
-
Jun 20, 2000
Issued Date -
N/A
app pub date -
Nov 26, 1997
filing date -
Feb 14, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A printing apparatus and method therefor reduces power-source capacity of the apparatus imposing any load on the printing apparatus and varying its printing speed. In parallel to printing operation, the number of print dots is counted by using a counter, and information amount for calculating the scanning period for each scanning is measured by also using a counter. Then, at the completion of each scanning, a print-duty ratio is calculated from the number of print dots and the information amount for calculating the scanning period for each scanning, and a waiting period to delay starting of the next scanning is set, based on the calculated duty ratio.
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