LINERLESS LABEL PRINTER CONTROL

. A thermal printer (10) for printing linerless labels is operated so that the pressure sensitive adhesive of the second face (14) of the labels does not stick to a drive roller (16) which advances and reverses the labels, and cooperates with the thermal printhead (17) to effect printing. A cutter (...

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Bibliographic Details
Main Authors BOREALI, JEFFREY J, HARROD, JIMMIE A
Format Patent
LanguageEnglish
French
Published 07.09.1999
Edition6
Subjects
CONVEYING
CORRECTION OF TYPOGRAPHICAL ERRORS
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
HANDLING THIN OR FILAMENTARY MATERIAL
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
LINING MACHINES
PACKING
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
STORING
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TRANSPORTING
TYPEWRITERS
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Summary:. A thermal printer (10) for printing linerless labels is operated so that the pressure sensitive adhesive of the second face (14) of the labels does not stick to a drive roller (16) which advances and reverses the labels, and cooperates with the thermal printhead (17) to effect printing. A cutter (18) is disposed downstream of the print head and drive roll from a linerless label roll takeoff (12). Between the cutter and the drive roller is an air knife (35) which directs a substantially uniform flow of gas to the peripheral surface of the drive roller to prevent the adhesive of the labels from sticking to the drive roller peripheral surface. Air flow through the air knife is at a pressure of about 20-50 psi (preferably about 30 psi) and the air flow may be provided continuously or only during initiation and continuation of printing and advancing the printer. Operation of the driver roller is also controlled to prevent sticking by advancing the roll of linerless labels so that the leading edge is aligned with the cutter, completely formatting the printer while the leading edge is aligned with the cutter, reversing the label leading edge by operating the drive roll so that the leading edge moves to an initial position for printing of the leading label of the roll, and with a delay of less than 0.5 seconds (i.e. substantially immediately) initiating printing and advancing so that the adhesive does not have any opportunity to stick to the drive roller.
Bibliography:Application Number: CA19962188445