Constant printing pressure mechanism for portable label...

Details Constant printing pressure mechanism for portable label... Constant printing pressure mechanism for portable label...

B - Operations, Transporting

41

J

101/31

B41J 3/00 (2006.01) B41F 1/54 (2006.01) B41J 5/00 (2006.01)

Patent

CA 1088372

CONSTANT PRINTING PRESSURE MECHANISM FOR PORTABLE LABEL PRINTING AND APPLYING MACHINE, OR THE LIKE ABSTRACT OF THE DISCLOSURE The disclosure concerns a constant printing pressure mechanism for a portable label printing and applying machine. The machine has a printing head which is interlocked to move with a hand lever. It has a platen that carries a label strip and that is disposed opposite to the printing head. The constant pressure mechanism turns the platen up against the type faces of the printing head with a constant pressure in synchronism with the downward movement of the printing head. The platen is slightly released from the printing head immediately after the printing operation. A linkage is connected with the hand lever for moving inking rollers across the type faces of the printing head and then out of the way of the type faces at printing time. The label strip of labels to be printed is fed to the platen by a feed roller, and the feed roller is rotated a desired distance for each label imprinting and the roller is mechanically blocked against inertial overrolling. The label strip is separated from the backing strip therefor by formation of a loop of the backing strip. A device regulates the size of the loop formed in the backing strip at the point it is peeled from the overlying label strip.

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