THERMAL PRINTERS

A selective printing system includes a series of thermal print stations and a label web drive system for advancing a label web through each of the print stations. Each of the print stations includes a print head having a printing surface for printing images and a platen against which the printing su...

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Bibliographic Details
Main Authors GRAHAM D WALTER, GARY F FOWLER, MICHAEL G MORIN, JOHN H JOHANSEN
Format Patent
LanguageEnglish
Published 14.07.1993
Subjects
CORRECTION OF TYPOGRAPHICAL ERRORS
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:A selective printing system includes a series of thermal print stations and a label web drive system for advancing a label web through each of the print stations. Each of the print stations includes a print head having a printing surface for printing images and a platen against which the printing surface is applied during printing. The print stations are arranged in a generally arcuate arrangement whereby the web follows a substantially straight path between printing surfaces of adjacent print stations. Also provided is a print adjustment system and a method for adjusting the level of pressure of a print head against a backup member. The adjustment system includes an elongated member that is slidably displaceable with respect to an outer surface of the print head. The elongated member has an inclined bearing surface on which a biasing member is positioned in order to apply a force to the elongated member. The elongated member includes a force transfer surface for transferring the biasing force to the print head.
Bibliography:Application Number: GB19930000174