Printing – Bed-and-platen machines – Web
Patent
1979-10-29
1982-04-20
Pieprz, William
Printing
Bed-and-platen machines
Web
101111, 101295, 101316, 101321, 156384, 101326, 101359, 226143, 226157, B41J 120
Patent
active
043253024
ABSTRACT:
Apparatus for printing and applying pressure-sensitive labels carried on a release liner of supporting material where the label stock advancement mechanism is a feed wheel which advances the release liner. A brake prevents movement of the label stock during application of a label. A ratchet and pawl arrangement incrementally advances the feed wheel each time a hand lever is returned to its rest position. At the same time, a second ratchet and pawl arrangement is effective to remove the brake during the incremental label stock advancement. The feed and brake release ratchets are preferably integrally connected to opposite sides of the feed wheel. Mechanisms are also provided for ensuring removal of the brake prior to incremental label stock advancement and for manually latching the brake in its released position during loading of label stock in the apparatus.
An inking roller mechanism for the apparatus print head includes a latching mechanism which in a first position latches the ink roll in place and in a second, non-latching position permits removal and replacement of the ink roll without tools. Further, the print head construction is such that one of a different number of print heads may be secured into the apparatus, again without tools. Further, the print head includes a plurality of print bands mounted on upper and lower drive gears where the lower drive gears are hexagonal in shape. A selector shaft which may be shifted to a selected print band and then rotated to rotate the print band to a selected position includes a selector shaft detenting means which detents the shaft close to the axis thereof.
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Baker Joseph J.
Esselte Pendaflex Corp.
Ferguson Jr. Gerald J.
Pieprz William
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