1. A hand stamp unit comprising:
an ink cartridge having an ink storage layer and an image forming layer, the image forming layer having an outer surface that is selectively sealable to form ink impermeable areas and ink permeable areas thereby creating an image, the ink cartridge having an outer edge and a border area adjacent to the outer edge on the ink storage layer, the border area of the ink cartridge forming a non-ink storage area surrounding the ink storage layer,
a frame member having a top, a bottom and side walls,
an ink entrance hole at the top of the frame member,
a ledge extending inward from the side walls,
a plurality of baffle members mounted within the frame member, the baffle members forming a circuitous path from the ink entrance hole to the ledge for controlling the flow of ink from the ink entrance hole to the ledge, and
an adhesive applied between the ledge and the border area for affixing the border area of the cartridge to the ledge.
2. The hand stamp unit of claim 1 and further comprising a handle attached to the frame member.
3. The hand stamp unit of claim 2 and further comprising a removable cover sheet that covers the adhesive until the ink cartridge is to be attached to the ledge at which time it is removed thereby exposing the adhesive.
4. The hand stamp of claim 2 wherein the adhesive is a liquid glue.
5. The hand stamp unit of claim 1 wherein the ink storage layer and image forming layer are bonded to each other.
6. The hand stamp unit of claim 1 wherein the ink entrance hole is in fluid communication with the circuitous path.
7. The hand stamp unit of claim 6 and further comprising a second ink entrance hole at the top of the frame member in fluid communication with the circuitous path.
8. The hand stamp unit of claim 1 wherein the baffle members are support members for adding structural strength to the frame member.
9. The hand stamp unit of claim 1 wherein the baffle members are symmetrically mounted on either side of the frame member about a horizontally disposed center line.
10. The hand stamp unit of claim 1 wherein the baffle members are symmetrically mounted on either side of the frame member about a vertically disposed center line.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A fluid injection head structure comprising:
a substrate;
at least one bubble generator positioned on the substrate;
a first conductive trace composed of a poly-silicon layer;
at least one functional device positioned on the substrate to control the bubble generator, wherein at least one layer of the functional device is formed on the same poly-silicon layer as the first conductive trace; and
a second conductive trace that electrically couples the functional device with the bubble generator, and couples the functional device with the first conductive trace.
2. The fluid injection head structure of claim 1 further comprising a contact layer positioned between the first conductive trace and the second conductive trace to electrically couple the first conductive trace with the second conductive trace.
3. The fluid injection head structure of claim 1 wherein the second conductive trace comprises at least one pad.
4. The fluid injection head structure of claim 1 further comprising a dielectric layer positioned between the first conductive trace and the second conductive trace.
5. The fluid injection head structure of claim 1 wherein the functional device is a transistor comprising a source, a drain, and a gate.
6. The fluid injection head structure of claim 5 wherein the transistor is a metal oxide semiconductor field effect transistor (MOSFET) and the gate is composed of poly-silicon.
7. The fluid injection head structure of claim 6 wherein the gate of the MOSFET is formed on the same poly-silicon layer as the first conductive trace.
8. The fluid injection head structure of claim 1 wherein the material of the second conductive trace is any one of aluminum, gold, copper, tungsten, alloys of aluminum-silicon-copper, and alloys of aluminum-copper.
9. The fluid injection head structure of claim 1 further comprising:
at least one chamber positioned on the substrate, wherein each chamber comprises at least one orifice through to the surface of the substrate; and
at least one manifold connected to the chamber for allowing fluid to flow into the chamber.
10. The fluid injection head structure of claim 9 wherein the bubble generator comprises a first bubble generating device and a second bubble generating device positioned adjacent to a corresponding orifice on a corresponding chamber, wherein when the chamber is full of fluid, the first bubble generating device generates a first bubble, and then the second bubble generating device generates a second bubble to eject the fluid from the chamber through the orifice.
11. The fluid injection head structure of claim 10 wherein the first bubble serves as a virtual valve, restricts flow of fluid out of the chamber.
12. The fluid injection head structure of claim 9 wherein the injection head is used as a print head of an inkjet printer, the manifold is connected to an ink cartridge, and the fluid is the ink of the ink cartridge.