We claim:
1. A printing plate prepared by a process comprising:
(a) applying a coating composition comprising at least one polymer to a substrate surface to provide the surface with a water-soluble or water-dispersible polymer coating;
(b) imaging the coated substrate with a toner composition comprising toner particles by imagewise applying the toner composition to the polymer coating, wherein the polymer coating has a softening temperature TS;
(c) heating the imaged substrate to a temperature TF which is equal to or greater than TS; and
(d) contacting the imaged substrate with a solution capable of removing the non-imaged portion of the polymer coating,
wherein the process does not comprise a chemical development step and the polymer coating has a coating weight of about 0.25 to about 2.0 gm2.
2. The printing plate of claim 1, wherein the coated substrate is imaged electrostatically with the toner composition.
3. The printing plate of claim 1, in which the substrate is aluminum.
4. The printing plate of claim 3, in which the aluminum substrate is hydrophilic.
5. The printing plate of claim 1, in which the polymer is a homopolymer or copolymer of polyethylene glycol.
6. The printing plate of claim 5, in which the polymer is a homopolymer of polyethylene glycol having a molecular weight in the range of 1,000-10,000.
7. The printing plate of claim 6, in which the homopolymer of polyethylene glycol has a molecular weight in the range of 2,500-6,500.
8. The printing plate of claim 1, in which the polymer coating weight is about 0.3 to about 1.3 gm2.
9. The printing plate of claim 1, wherein the polymer coating further comprises dispersed particles.
10. The printing plate of claim 9, wherein the dispersed particles are selected from colloidal silica, colloidal titania and colloidal alumina particles.
11. A method of preparing a printing plate comprising:
(a) applying a coating composition comprising at least one polymer to a substrate surface to provide the surface with a water-soluble or water-dispersible polymer coating, wherein the polymer coating has a coating weight of about 0.25 to about 2.0 gm2;
(b) imaging the coated substrate with a toner composition comprising toner particles by imagewise applying the toner composition to the polymer coating, wherein the polymer coating has a softening temperature TS;
(c) heating the imaged substrate to a temperature TF which is equal to or greater TS; and
(d) contacting the imaged substrate with a solution capable of removing the non-imaged portion of the polymer coating,
wherein the method does not comprise a chemical development step.
12. The method of claim 11, wherein the coated substrate is imaged electrostatically with the toner composition.
13. The method of claim 11, in which the substrate is aluminum.
14. The method of claim 13, in which the aluminum substrate is hydrophilic.
15. The method of claim 11, in which the polymer is a homopolymer or copolymer of polyethylene glycol.
16. The method of claim 15, in which the polymer is a homopolymer of polyethylene glycol having a molecular weight in the range of 1,000-10,000.
17. The method of claim 16, in which the homopolymer of polyethylene glycol has a molecular weight in the range of 2,500-6,500.
18. The method of claim 11, in which the polymer coating weight is about 0.3 to about 1.3 gm2.
19. The method of claim 11, wherein the polymer coating further comprises dispersed particles.
20. The method of claim 19, wherein the dispersed particles are selected from colloidal silica, colloidal titania and colloidal alumina particles.
21. A method of printing comprising:
(a) providing a printing plate prepared by a process comprising:
(i) applying a coating composition comprising at least one polymer to a substrate surface to provide the surface with a water-soluble or water-dispersible polymer coating, wherein the polymer coating has a coating weight of about 0.25 to about 2.0 gm2;
(ii) imaging the coated substrate with a toner composition comprising toner particles by imagewise applying the toner composition to the polymer coating, wherein the polymer coating has a softening temperature TS,
(iii) heating the imaged substrate to a temperature TF which is equal to or greater than TS, and
(iv) contacting the imaged substrate with a solution capable of removing the non-imaged portion of the polymer coating without a chemical development step;
(b) contacting the imaged printing plate with an ink; and
(c) transferring imagewise the ink from the printing plate to a receiving material.
22. The method of claim 21, wherein the coated substrate is imaged electrostatically with the toner composition.
23. The method of claim 21, in which the polymer coating weight is about 0.3 to about 1.3 gm2.
24. A printing plate comprising image areas of toner fused at a fusing temperature TF overlying a water-soluble or dispersible polymer coating, wherein the polymer coating has a coating weight of about 0.25-2.0 gm2 and a softening temperature TS which is equal to or less than the fusing temperature TF.
25. The printing plate of claim 24, in which the polymer is a homopolymer or copolymer of polyethylene glycol.
26. The printing plate of claim 25, in which the polymer is a homopolymer of polyethylene glycol having a molecular weight in the range of 1,000-10,000.
27. The printing plate of claim 26, in which the homopolymer of polyethylene glycol has a molecular weight in the range of 2,500-6,500.
28. The printing plate of claim 24, in which the polymer coating weight is about 0.3 to about 1.3 gm2.
29. The printing plate of claim 24, wherein the polymer coating further comprises dispersed particles.
30. The printing plate of claim 29, wherein the dispersed particles are selected from colloidal silica, colloidal titania and colloidal alumina particles.
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 use in a wireless messaging system, the method comprising:
during a first time period, rescheduling a wireless message scheduled for transmission if delivery of the wireless message has not been confirmed prior to expiration of the first time period; and
canceling, at least temporarily, the rescheduled transmission of the wireless message if the wireless message is rescheduled for delivery after expiration of the first time period.
2. The method as recited in claim 1 wherein the first time period is a first occurrence of a recurring time period and the canceling comprises:
removing the wireless message from a queue of wireless messages for transmission if the wireless message has an expired status; and
otherwise, rescheduling the wireless message for transmission during a next occurrence of the recurring time period.
3. The method as recited in claim 1,
wherein an indication of the canceling is provided by a message controller to a delivery controller, and
wherein the delivery controller prevents transmission of the wireless message in response to the indication.
4. The method as recited in claim 3 wherein the message controller tracks delivery confirmation for wireless messages.
5. The method as recited in claim 3 wherein the message controller is coupled to the delivery controller via a communications network.
6. The method as recited in claim 3 wherein the message controller and the delivery controller are included in a short message center.
7. The method as recited in claim 1 further comprising:
receiving from a message originator the wireless message and a request to cancel transmission of the wireless message; and
canceling transmission of the wireless message in response to the request to cancel transmission.
8. The method as recited in claim 7 wherein the request to cancel transmission is received contemporaneously with the wireless message.
9. An apparatus comprising:
a delivery controller configured to reschedule, during a first time period, transmission of a wireless message scheduled for transmission, if delivery of the wireless message has not been confirmed prior to expiration of the first time period; and
a message controller configured to cancel, at least temporarily, the rescheduled transmission of the wireless message if the wireless message is rescheduled for transmission after expiration of the first time period.
10. The apparatus as recited in claim 9 further comprising:
a queue of wireless messages for transmission,
wherein the first time period is a first occurrence of a recurring time period and the message controller is configured to remove the wireless message from the queue of wireless messages for transmission if the wireless message has an expired status, and configured to otherwise, reschedule the wireless message for transmission during a next occurrence of the recurring time period.
11. The apparatus as recited in claim 9,
wherein the message controller is configured to provide an indication of the canceling to the delivery controller, and
wherein the delivery controller is configured to prevent transmission of the wireless message in response to the indication.
12. The apparatus as recited in claim 11 wherein the message controller tracks delivery confirmation for wireless messages for transmission.
13. The apparatus as recited in claim 11 further comprising:
a communications network coupled between the message controller and the delivery controller.
14. The apparatus as recited in claim 11 wherein the message controller and the delivery controller are included in a short message center.
15. The apparatus as recited in claim 9, wherein the delivery controller is configured to receive from a message originator the wireless message and receive from the message originator a request to cancel transmission of the wireless message.
16. The apparatus as recited in claim 15, wherein the request to cancel transmission is received contemporaneously with the wireless message.
17. An apparatus comprising:
means for controlling wireless message delivery configured to reschedule, during a first time period, transmission of a wireless message scheduled for transmission, if delivery of the wireless message has not been confirmed prior to expiration of the first time period; and
means for controlling wireless messages configured to cancel, at least temporarily, the rescheduled transmission of the wireless message if the wireless message is rescheduled for delivery after expiration of the first time period.
18. The apparatus as recited in claim 17 further comprising:
means for storing a queue of wireless messages for transmission,
wherein the first time period is a first occurrence of a recurring time period and the means for controlling wireless messages is configured to remove the wireless message from the queue if the wireless message has an expired status, and configured to otherwise, reschedule the wireless message for transmission during a next occurrence of the recurring time period.