What is claimed is:
1. An ink jet printing apparatus comprising:
an ink droplet forming mechanism for ejecting a stream of ink droplets having a selected one of at least two different volumes toward a print medium;
a droplet deflector for producing a flow of gas that interacts with said ink droplet stream to separate ink droplets having said different volumes from one another, and
a gas flow conditioner for preconditioning with solvent vapor the gas flow produced by said droplet deflector.
2. The ink jet printing apparatus defined in a claim 1, wherein said apparatus is a continuous stream ink jet printer.
3. The ink jet printing apparatus defined in a claim 1, wherein said flow of gas produced by said droplet deflector is oriented transversely to said stream of ink droplets and functions to deflect smaller volume droplets from larger volume droplets.
4. The ink jet printing apparatus defined in a claim 1, further comprising a catcher for collecting one of said two different volumed ink droplets after said gas flow deflects droplets of one volume from droplets of a different volume.
5. The ink jet printing apparatus defined in a claim 1, wherein said solvent is water.
6. The ink jet printing apparatus defined in a claim 1, wherein said gas flow is a flow of air.
7. The ink jet printing apparatus defined in a claim 6, wherein said gas flow is a laminar flow of air.
8. The ink jet printing apparatus defined in a claim 1, wherein said gas flow conditioner includes a sensor responsive to a solvent concentration in said gas flow.
9. The ink jet printing apparatus defined in a claim 8, wherein said gas flow conditioner includes a control circuit connected to said sensor for adjusting a solvent addition rate to said gas flow to maintain a selected solvent concentration in said flow.
10. The ink jet printing apparatus defined in a claim 11, wherein said ink droplet forming mechanism includes a printhead with nozzles for ejecting said droplets and said gas flow conditioner preconditions said gas flow with sufficient solvent to reduce ink drying around said nozzles and to prevent substantial changes in ink viscosity.
11. A continuous stream ink printing apparatus, comprising:
an inkjet droplet forming mechanism for ejecting a stream of ink droplets having a selected one of at least two different volumes toward a print medium;
a droplet deflector for producing a flow of gas that transversely interacts with said droplet stream to separate ink droplets having said different volumes from one another, and
a gas flow conditioner for preconditioning with solvent vapor the gas flow produced by said droplet deflector.
12. The ink jet printing apparatus defined in a claim 11, wherein said ink jet droplet forming mechanism includes a printhead having at least one nozzle for ejecting said droplet stream, and said gas flow conditioner preconditions said gas flow with solvent sufficient to substantially reduce ink drying around said nozzles.
13. The ink jet printing apparatus defined in a claim 12, further comprising an ink recycling system for recaptured ink droplets, and wherein said gas flow conditioner preconditions said gas flow with solvent sufficient to substantially prevent a viscosity of ink forming said recaptured droplets from increasing.
14. The ink jet printing apparatus defined in a claim 12, wherein said printhead includes a heater disposed adjacent to said nozzle for controlling said droplet volume.
15. The ink jet printing apparatus defined in a claim 11, wherein said solvent is water.
16. The ink jet printing apparatus defined in a claim 11, wherein said gas flow is a flow of air.
17. The ink jet printing apparatus defined in a claim 11, wherein said gas flow is a flow of air.
18. The ink jet printing apparatus defined in a claim 17, wherein said gas flow conditioner includes a control circuit connected to said sensor for adjusting a solvent addition rate to said gas flow to maintain a selected solvent concentration in said flow.
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 method for operating a publicly accessible purchasing system, the method comprising:
receiving, on a receipt date, from a purchaser, in a publicly accessible purchasing system, a deferred purchase request (\u201cDPR\u201d) for an item to be purchased;
identifying a vendor; and
issuing, in dependence upon the DPR, a purchase order to the vendor on a date subsequent to the receipt date.
2. The method of claim 1 wherein the DPR includes an item identification for the item to be purchased, and identifying a vendor further comprises identifying a vendor in dependence upon the item identification.
3. The method of claim 1 wherein identifying a vendor further comprises selecting a selected vendor in dependence upon vendor item prices.
4. The method of claim 3 wherein selecting a selected vendor in dependence upon vendor item prices further comprises selecting a vendor having a lowest vendor item price for the item to be purchased.
5. The method of claim 1 wherein the DPR further comprises a maximum price to be paid for the item to be purchased, a vendor item price for the item is available from at least one vendor, and identifying a vendor further comprises selecting a selected vendor having a vendor item price no greater than the maximum price.
6. The method of claim 1 wherein a plurality of vendors present the item, and identifying a vendor further comprises selecting a selected vendor in dependence upon purchase orders.
7. The method of claim 6 wherein selecting a vendor in dependence upon purchase orders comprises selecting a vendor having at least one previously issued purchase order for the purchaser.
8. The method of claim 1 wherein a plurality of vendors present the item, wherein vendor records comprise vendor location data, and identifying a vendor further comprises selecting a selected vendor in dependence upon proximity of a vendor to the purchaser.
9. The method of claim 8 wherein selecting a vendor in dependence upon proximity includes selecting a vendor having an address in the same city with the purchaser.
10. The method of claim 8 wherein selecting a vendor in dependence upon proximity includes selecting a vendor having an address in the same state with the purchaser.
11. The method of claim 8 wherein selecting a vendor in dependence upon proximity includes selecting a vendor having an address in the same country with the purchaser.
12. The method of claim 1 wherein identifying a vendor further comprises:
receiving vendor identification criteria from the purchaser; and
identifying a vendor in dependence upon the vendor identification criteria.
13. The method of claim 1 wherein the purchasing system comprises vendor identification criteria, and identifying a vendor further comprises identifying a vendor in dependence upon the vendor identification criteria.
14. The method of claim 1 wherein receiving a DPR in a publicly accessible purchasing system further comprises receiving a DPR across a telecommunications network through a Parlay environment.
15. The method of claim 1 wherein receiving a DPR in a publicly accessible purchasing system further comprises receiving a DPR across a telecommunications network through a JAN SLEE environment.
16. The method of claim 1 wherein receiving a DPR in a publicly accessible purchasing system further comprises receiving a DPR across an internet protocol network, utilizing HTTP.
17. A system for operating a publicly accessible purchasing system, the system comprising:
means for receiving, on a receipt date, from a purchaser, in a publicly accessible purchasing system, a deferred purchase request (\u201cDPR\u201d) for an item to be purchased;
means for identifying a vendor; and
means for issuing, in dependence upon the DPR, a purchase order to the vendor on a date subsequent to the receipt date.
18. The system of claim 17 wherein the DPR includes an item identification for the item to be purchased, and means for identifying a vendor further comprises means for identifying a vendor in dependence upon the item identification.
19. The system of claim 17 wherein means for identifying a vendor further comprises means for selecting a selected vendor in dependence upon vendor item prices.
20. The system of claim 19 wherein means for selecting a selected vendor in dependence upon vendor item prices further comprises means for selecting a vendor having a lowest vendor item price for the item to be purchased.
21. The system of claim 17 wherein the DPR further comprises a maximum price to be paid for the item to be purchased, a vendor item price for the item is available from at least one vendor, and means for identifying a vendor further comprises means for selecting a selected vendor having a vendor item price no greater than the maximum price.
22. The system of claim 17 wherein a plurality of vendors present the item, and means for identifying a vendor further comprises means for selecting a selected vendor in dependence upon purchase orders.
23. The system of claim 22 wherein means for selecting a vendor in dependence upon purchase orders comprises means for selecting a vendor having at least one previously issued purchase order for the purchaser.
24. The system of claim 17 wherein a plurality of vendors present the item, wherein vendor records comprise vendor location data, and means for identifying a vendor further comprises means for selecting a selected vendor in dependence upon proximity of a vendor to the purchaser.
25. The system of claim 24 wherein means for selecting a vendor in dependence upon proximity includes means for selecting a vendor having an address in the same city with the purchaser.
26. The system of claim 24 wherein means for selecting a vendor in dependence upon proximity includes means for selecting a vendor having an address in the same state with the purchaser.
27. The system of claim 24 wherein means for selecting a vendor in dependence upon proximity includes means for selecting a vendor having an address in the same country with the purchaser.
28. The system of claim 17 wherein means for identifying a vendor further comprises:
means for receiving vendor identification criteria from the purchaser; and
means for identifying a vendor in dependence upon the vendor identification criteria.
29. The system of claim 17 wherein the purchasing system comprises vendor identification criteria, and means for identifying a vendor further comprises means for identifying a vendor in dependence upon the vendor identification criteria.
30. The system of claim 17 wherein means for receiving a DPR in a publicly accessible purchasing system further comprises means for receiving a DPR across a telecommunications network through a Parlay environment.
31. The system of claim 17 wherein means for receiving a DPR in a publicly accessible purchasing system further comprises means for receiving a DPR across a telecommunications network through a JAN SLEE environment.
32. The system of claim 17 wherein means for receiving a DPR in a publicly accessible purchasing system further comprises means for receiving a DPR across an internet protocol network utilizing HTTP.
33. A computer program product for operating a publicly accessible purchasing system, the computer program product comprising:
a recording medium;
means, recorded on the recording medium, for receiving, on a receipt date, from a purchaser, in a publicly accessible purchasing system, a deferred purchase request (\u201cDPR\u201d) for an item to be purchased;
means, recorded on the recording medium, for identifying a vendor; and
means, recorded on the recording medium, for issuing, in dependence upon the DPR, a purchase order to the vendor on a date subsequent to the receipt date.
34. The computer program product of claim 33 wherein the DPR includes an item identification for the item to be purchased, and means, recorded on the recording medium, for identifying a vendor further comprises means, recorded on the recording medium, for identifying a vendor in dependence upon the item identification.
35. The computer program product of claim 33 wherein means, recorded on the recording medium, for identifying a vendor further comprises means, recorded on the recording medium, for selecting a selected vendor in dependence upon vendor item prices.
36. The computer program product of claim 35 wherein means, recorded on the recording medium, for selecting a selected vendor in dependence upon vendor item prices further comprises means, recorded on the recording medium, for selecting a vendor having a lowest vendor item price for the item to be purchased.
37. The computer program product of claim 33 wherein the DPR further comprises a maximum price to be paid for the item to be purchased, a vendor item price for the item is available from at least one vendor, and means, recorded on the recording medium, for identifying a vendor further comprises means, recorded on the recording medium, for selecting a selected vendor having a vendor item price no greater than the maximum price.
38. The computer program product of claim 33 wherein a plurality of vendors present the item, and means, recorded on the recording medium, for identifying a vendor further comprises means, recorded on the recording medium, for selecting a selected vendor in dependence upon purchase orders.
39. The computer program product of claim 38 wherein means, recorded on the recording medium, for selecting a vendor in dependence upon purchase orders comprises means, recorded on the recording medium, for selecting a vendor having at least one previously issued purchase order for the purchaser.
40. The computer program product of claim 33 wherein a plurality of vendors present the item, wherein vendor records comprise vendor location data, and means, recorded on the recording medium, for identifying a vendor further comprises means, recorded on the recording medium, for selecting a selected vendor in dependence upon proximity of a vendor to the purchaser.
41. The computer program product of claim 40 wherein means, recorded on the recording medium, for selecting a vendor in dependence upon proximity includes means, recorded on the recording medium, for selecting a vendor having an address in the same city with the purchaser.
42. The computer program product of claim 40 wherein means, recorded on the recording medium, for selecting a vendor in dependence upon proximity includes means, recorded on the recording medium, for selecting a vendor having an address in the same state with the purchaser.
43. The computer program product of claim 40 wherein means, recorded on the recording medium, for selecting a vendor in dependence upon proximity includes means, recorded on the recording medium, for selecting a vendor having an address in the same country with the purchaser.
44. The computer program product of claim 33 wherein means, recorded on the recording medium, for identifying a vendor further comprises:
means, recorded on the recording medium, for receiving vendor identification criteria from the purchaser; and
means, recorded on the recording medium, for identifying a vendor in dependence upon the vendor identification criteria.
45. The computer program product of claim 33 wherein the purchasing system comprises vendor identification criteria, and means, recorded on the recording medium, for identifying a vendor further comprises means, recorded on the recording medium, for identifying a vendor in dependence upon the vendor identification criteria.
46. The computer program product of claim 33 wherein means, recorded on the recording medium, for receiving a DPR in a publicly accessible purchasing system further comprises means, recorded on the recording medium, for receiving a DPR across a telecommunications network through a Parlay environment.
47. The computer program product of claim 33 wherein means, recorded on the recording medium, for receiving a DPR in a publicly accessible purchasing system further comprises means, recorded on the recording medium, for receiving a DPR across a telecommunications network through a JAIN SLEE environment.
48. The computer program product of claim 33 wherein means, recorded on the recording medium, for receiving a DPR in a publicly accessible purchasing system further comprises means, recorded on the recording medium, for receiving a DPR across an internet protocol network utilizing HTTP.