Greeting card feeder operating system

Details Greeting card feeder operating system Greeting card feeder operating system

2000-04-28

2001-12-04

Eickholt, Eugene (Department: 2854)

Incremental printing of symbolic information

Ink jet

Medium and processing means

C400S605000, C101S483000

Reexamination Certificate

active

06325503

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates generally to hardcopy devices which advance media through a printzone for printing, such as electrophotographic printers or as illustrated herein, inkjet printing mechanisms. More particularly, the present invention relates to an operating system for controlling a greeting card feeder module used in conjunction with a duplexing printing mechanism to easily print greeting cards which are comparable with store-bought greeting cards.
BACKGROUND OF THE INVENTION
The term “hardcopy device” includes a variety of printers and plotters, including those using inkjet and electrophotographic technologies to apply an image to a hardcopy medium, such as paper, transparencies, fabrics, foils and the like. Inkjet printing mechanisms print images using a colorant, referred to generally herein as “ink.” These inkjet printing mechanisms use inkjet cartridges, often called “pens,” to shoot drops of ink onto a page or sheet of print media. Some inkjet print mechanisms carry an ink cartridge with a full supply of ink back and forth across the sheet. Other inkjet print mechanisms, known as “off-axis” systems, propel only a small ink supply with the printhead carriage across the printzone, and store the main ink supply in a stationary reservoir, which is located “off-axis” from the path of printhead travel. Typically, a flexible conduit or tubing is used to convey the ink from the off-axis main reservoir to the printhead cartridge. In multi-color cartridges, several printheads and reservoirs are combined into a single unit, with each reservoir/printhead combination for a given color also being referred to herein as a “pen.” As the inkjet industry investigates new printhead designs, one trend is toward using a “snapper” reservoir system where permanent or semi-permanent printheads are used and a reservoir carrying a fresh ink supply is snapped into place on the printhead.
Each pen has a printhead formed with very small nozzles through which the ink drops are fired. The particular ink ejection mechanism within the printhead may take on a variety of different forms known to those skilled in the art, such as those using piezo-electric or thermal printhead technology. For instance, two earlier thermal ink ejection mechanisms are shown in U.S. Pat. Nos. 5,278,584 and 4,683,481, both assigned to the present assignee, the Hewlett-Packard Company. In a thermal system, a barrier layer containing ink channels and vaporization chambers is located between a nozzle orifice plate and a substrate layer. This substrate layer typically contains linear arrays of heater elements, such as resistors, which are energized to heat ink within the vaporization chambers. Upon heating, an ink droplet is ejected from a nozzle associated with the energized resistor.
To print an image, the printhead is propelled through a printzone back and forth across the page, ejecting drops of ink in a desired pattern as it moves. By selectively energizing the resistors as the printhead moves across the page, the ink is expelled in a pattern on the print media to form a desired image (e.g., picture, chart or text). The nozzles are typically arranged in linear arrays usually located side-by-side on the printhead, parallel to one another, and perpendicular to the scanning direction of the printhead, with the length of the nozzle arrays defining a print swath or band. That is, if all the nozzles of one array were continually fired as the printhead made one complete traverse through the printzone, a band or swath of ink would appear on the sheet. The width of this band is known as the “swath height” of the pen, the maximum pattern of ink which can be laid down in a single pass. The print media, such as a sheet of paper, is moved through the printzone typically one swath width at a time, although some print schemes move the media incrementally by, for instance, halves or quarters of a swath width for each printhead pass to obtain a shingled drop placement which enhances the appearance of the final image.
Whether the printing mechanism uses either a snapper cartridge system, an off-axis system, a replaceable cartridge system or some other inkjet system, drop placement on the media must be coordinated with the incremental advance of the media through the printzone for sharp, vivid images and text, which are free of print defects, such as color banding, improper spacing, and printed line overlapping. Many types of inkjet printing mechanisms use a series of conventional paper drive rollers or tires to frictionally engage the print media and incrementally advance the media through the printzone, moving either a full or fractional swath width.
One such media advancing system is described in U.S. Pat. No. 5,838,338, currently assigned to the Hewlett-Packard Company. One inkjet printer, specifically the DeskJet® 970 model color inkjet printer sold by the Hewlett-Packard Company, has a duplexer unit. Other printers, such as the DeskJet® 930 and 950 models of color inkjet printers, also sold by the Hewlett-Packard Company, may be used in conjunction with an optional duplexing module sold by the Hewlett-Packard Company as the Automatic Two-Sided Printing Module, stock no. C6463A. As the home computer market grows, as well as business applications, consumers have a desire to print greeting cards on their own printers, and as print quality advances increase, current inkjet printers have the ability to produce greeting cards which are of a quality comparable to a store bought greeting card. Additionally, with the increasing popularity of the Internet and electronic commerce, there are many websites which offer a variety of greeting card designs that consumers can download and print. For example, one such website may be located at www.printablecards.com. Indeed, in the future stores may even offer greeting card media in pre-cut sizes, such as 7×10 inch sheets which could be pre-scored to easily fold into a 5×7 inch greeting card.
Unfortunately, even with the ready availability of both pre-cut media and greeting card designs on the Internet and other software programs, most people still do not print their own greeting cards because of the complexity of the process, particularly when using currently available inkjet printers. Most consumers typically print on letter size media and only occasionally wish to print a greeting card, such as for holidays, birthdays and the like. For example, using a Microsoft Windows® based operating system on a home computer, printing a greeting card is a complicated lengthy process both in terms of physical hardware changes that need to be made to the printer, as well as software manipulation.
For example,
FIGS. 5A and 5B
together form a flow chart illustrating a prior art greeting card printing method. Since the drawings are labeled
5
A and
5
B, we will begin our discussion of this method with the letter C for the first step. Assuming an inkjet printer has been being used in a normal fashion for printing on letter-sized (8 ½×11 inch), in a removing step C, the user must first remove this normal sized paper (or other media) from the input tray and find a place to put the stack, which for some users with a slightly a cluttered work area may be a difficult task in itself. Then in a loading step D, the greeting card media is loaded into the input tray of the printer. Then in a width adjusting step E, the media width adjuster must be moved to snuggly press the stack against the side of the input tray. Then in a length adjusting step F, the media length adjuster must then be moved to snuggly press the greeting card stack back toward the media picking and feed mechanism.
Now the greeting card media has been loaded into the printer, the method continues with a software running step G, where the user then begins to run a particular greeting card software application. As mentioned above, this software application might be something which the user purchased, or it may be a design downloaded from the Internet or something custom created by the user using word proc

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