Character printing device with pressure impact control
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United States of America Patent
Stats
-
Apr 13, 1993
Issued Date -
N/A
app pub date -
Apr 27, 1992
filing date -
Jan 8, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An impact-type printing device includes a printer for printing characters with a plurality of impression pressures including a high impression pressure sufficient for printing on all of the sheets of a set of copy sheets. The device also include a keyboard having a key for selecting one of the plurality of impression pressures when the device operates in a normal operation mode. The device further includes a switch for switching the device between the normal operation mode and a copy mode of operation. In the normal mode the printer is capable of printing in any of the plurality of impression pressures selected by the operator at the keyboard. In the copy mode the printer prints only with a high pressure, sufficient for printing on all of the sheets of the set of copy sheets. The device also erases a previously printed character when in the normal mode and overstrikes the previously printed character in the copy mode.
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