Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2002-02-06
2004-06-01
Meier, Stephen D. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C327S002000, C327S104000, C327S213000, C327S214000, C400S621000
Reexamination Certificate
active
06742858
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to printing to and cutting of a label media using a label printer-cutter. In one aspect, the invention relates to a label printer that includes a print head assembly for printing to a label media and a cutting assembly for cutting of a label media such that the printing and cutting are mutually exclusive.
BACKGROUND OF INVENTION
Electronic label printing machines are often used to generate adhesive labels having images (e.g., indicia, graphics, art, specialized instructions, warnings, slogans, advertising, etc.) to facilitate identification, tracking and pricing of goods. Such label printers typically include: a print head, an assembly (e.g., a label media cartridge) for conveniently supplying or inserting a label media (also called a label media supply) into the printer so that the label media can be fed past the print head in order to be printed, a microprocessor, a read-only memory (ROM) programmed with appropriate instructions therein to operate the microprocessor, a random access memory (RAM), a keyboard with letter, number, and function keys for entry of alphanumeric information requisite to printing the indicia on the label media, and a visual display such as a light emitting diode (“LED”) or liquid crystal display (“LCD”) screen to convey information to a machine operator. These components function together to achieve the end goal of creating high quality and accurate labels from the label media using the electronic label printing machine.
Labels are made from a label media. The label media itself typically is made up of a roll of pressure sensitive tape that is attached, typically along a side containing an adhesive, to a continuous support roll of release liner material. The label media is fed in a media direction along a media path through the label printer. Discrete labels are formed by cutting the label media. Complex label shapes can be obtained by plotter cutting the tape layer only of the label media. The label media can be end cut (i.e., cutting through the tape and the release liner layers) or portioned into an end cut label media portion in order to obtain as many discrete labels in a continuous row as is desired. In other words, one or more than one discrete label can reside on an end cut label media portion. An end cutting operation can occur with or without a plotter cutting operation first having taken place. Following label media cutting, the discrete labels can be removed from the release liner and attached, as appropriate, to the particular application requiring identification. Since there are many types of label applications, there are many combinations of tape and release liners that can provide labels of varying sizes, colors, formats, and characteristics.
One type of label printer employs a thermal transfer print head. In general, the use of thermal print heads in label printers has increased as the quality and accuracy of thermal print heads has improved. Thermal transfer printing uses a heat-generating print head to transfer ink, or the like, from a thermal transfer ribbon to a label media to form a label image on the media. A microprocessor determines a sequence of individual thermal, typically resistive, print head elements to be selectively heated or energized. Energizing the sequence of elements in turn heats the ribbon so as to transfer the ink from the ribbon, creating the desired image on the label media, and specifically, on the label tape. The label printer can be fed label media from a label media source. Simultaneously, a thermal transfer ribbon can be fed from a ribbon source. While the label media runs between the print head and a support (platen) roller, the transfer ribbon can run between the print head and the support roller. Thus, the label media and the transfer ribbon can run together in an overlay relationship between the print head and the support roller.
When it is desired to print a color image on a label media, it is generally required to print the image by passing the label media several times past the print head. To accomplish each pass, the label media is fed, retracted, and then re-fed again past the thermal print head. With each pass, a different primary color, for example, in a traditional color scheme, cyan, magenta, yellow, and black, is printed from a continuous ink ribbon onto the label media using the print head. In this manner, based on the amount of each color printed, a composite color image can be printed onto a label media.
It is continually desirable to improve the functionality, performance and/or efficiency of various components, or combinations of components (also sometimes called “assemblies” or “subassemblies”) that make up label printers. For example, it would be desirable to improve the process of cutting label media in label printers.
It has been found to be convenient to provide both printing to and cutting of a label media in a single unit. As a result, independent printing and cutting systems or assemblies are typically required to accomplish these operations. Transferring from printing to cutting operations in a single label printer-cutter unit has required complex systems with large numbers of components. As a result, such printer-cutters have tended to be difficult and costly to manufacture.
Thus, it would be advantageous to accomplish printing to and cutting of a label media in a single label printer-cutter unit, and moreover, to do so in an efficient and cost-effective manner.
SUMMARY OF INVENTION
The present invention generally provides a label printer-cutter with mutually exclusive printing and cutting operations that overcomes the aforementioned problems.
Disclosed herein is a label printer-cutter comprising: a frame; a print head assembly connected to the frame, the print head assembly including a print head for printing to a label media; a cutting assembly connected to the frame, the cutting assembly for cutting of the label media; and a controller in operative association with the print head assembly and the cutting assembly; wherein the controller can be programmed to control the print head assembly and the cutting assembly such that printing to and cutting of the label media does not occur simultaneously in the label printer-cutter.
Also, a method is disclosed for selectively printing to and cutting of a label media in a label printer-cutter. The method includes: printing to a label media using a print head assembly, cutting the label media using the cutting assembly, and using a controller that is in operable association with the print head assembly and the cutting assembly to control the print head assembly and the cutting assembly such that printing to and cutting of the label media does not occur simultaneously in the label printer-cutter.
Various other features, objects and advantages of the present invention will be made apparent from the following detailed description and the drawings.
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Lehmkuhl Wade E.
Milton Scott C.
Brady Worldwide Inc.
Dudding Alfred
Meier Stephen D.
Whyte Hirschboeck Dudek SC
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