Typewriting machines – Including adjustment for optimum printing plane – Responsive to thickness of record-medium
Patent
1993-12-14
1994-11-22
Eickholt, Eugene H.
Typewriting machines
Including adjustment for optimum printing plane
Responsive to thickness of record-medium
400 58, B41J 1120
Patent
active
053663012
ABSTRACT:
The present invention relates to a system for use in an ink-jet printer having a printhead and an opposing platen capable of movement toward and away from the printer's printhead to define a record media gap therebetween. The system is effective to selectively restrict movement of a printer's platen to effect adjustment of the record media gap upon detection of record media having a characteristic which warrants such a change. The system is provided with a detector capable of recognizing the characteristic, and with a stop mechanism which acts in concert with the detector to effect the desired change. In its nominal configuration, the stop mechanism limits movement of the platen at a first position so as to define a first record media gap. However, upon detection of record media having the characteristic, the stop mechanism is automatically reconfigured so as to allow movement of the platen to a second position defining a second record media gap.
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Martin Paul W.
Rotering Cathy A.
Eickholt Eugene H.
Hewlett--Packard Company
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