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CARRIAGE DISPLACEMENT ARRANGEMENT FOR PRINTWHEEL REPLACEMENT IN IMPACT PRINTER

IP.com Disclosure Number: IPCOM000024973D
Original Publication Date: 1983-Feb-28
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal

Abstract

Printwheel replacement in impact printers is important since many present day printer operations require the use of multiple fonts. In conventional daisywheel-type impact printers, a reciprocating carriage, which moves parallel to the printer platen, carries the printwheel, printwheel drive motor, hammer assembly, ribbon cartridge, and ribbon advance mechanism. Since the carriage is usually driven by a cable or timing belt arrangement, its position (other than transverse movement) is fixed. Therefore, in order to move the printwheel, the printwheel motor and the hammer assembly out of the way during removal or replacement of the printwheel, a tiltable subcarriage is usually provided upon the traversing carriage. This requires a complex and relatively expensive construction.