Transaction printing device having wiper debris collectors

Details Transaction printing device having wiper debris collectors Transaction printing device having wiper debris collectors

1999-12-23

2001-10-16

Yockey, David F. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S087000

Reexamination Certificate

active

06302515

ABSTRACT:

TECHNICAL FIELD
The present invention relates to an inkjet printing system and method of printing. More particularly, the present invention relates to an inkjet transaction printing device and a method of printing transaction receipts with a disposable printhead and wiper debris collector.
BACKGROUND
A typical inkjet printing device generally include a traveling carriage unit for supporting one or more printheads in a desired orientation relative to a ink receiving surface. In this regard, as the carriage unit travels along a rectilinear path of travel adjacent to the ink-receiving surface, the printheads eject ink on to the ink-receiving surface to form desired indicia.
Such printheads typically have an orifice plate with a plurality of small nozzles for ejecting the ink toward the ink-receiving surface. Because of residue build up on and around these small nozzles or opening, many inkjet printing devices include a service station module that caps, wipes and catches spit ink droplets that facilitates keeping the printhead clean. A necessary operation in servicing such a printhead is to make certain that the wiper utilized to remove residue is also cleaned periodically.
A prior solution for cleaning such a wiper included providing a wiper cleaning station within the service station module. In this regard, not only is a wiper cleaning station required but also special wiper cleaning fluids are necessary to clean the wiper. Thus, while such wiper cleaning stations are satisfactory for their intended purpose, the wiper cleaning station parts are nevertheless expected to last for the life of the printing device and adds to the cost of operating the printer because of the special cleaning fluids that must be provided. Therefore it would be highly desirable to have a new and improved inkjet printing device that does not require a wiper cleaning station that is expected to last the life of the printing device nor require special cleaning fluids.
SUMMARY OF THE INVENTION
The present invention provides a disposable printhead cartridge having an integrated inkjet printhead and wiper debris collector for printing and servicing a transaction printing device.


REFERENCES:
patent: 4709247 (1987-11-01), Piatt et al.
patent: 5025271 (1991-06-01), Baker et al.
patent: 5202702 (1993-04-01), Terasawa et al.
patent: 5905513 (1999-05-01), Brandon et al.

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