Claims
- 1. A printing unit, comprising:
- a rotatable print cylinder;
- a rotatable blanket cylinder;
- an imaging unit inside the printing unit, wherein the imaging unit includes a charge controller;
- a tubular printing blanket, the tubular printing blanket being axially mountable on, and removable from, the rotatable blanket cylinder; and
- a tubular imaging form mounted on the rotatable print cylinder, the tubular imaging form being imaged by the imaging unit, the tubular imaging form having a continuous outer surface, the tubular imaging form being axially mountable on, and removable from, the rotatable print cylinder, wherein the tubular imaging form has a dielectric surface, and wherein the charge controller produces couples of micro dipoles on the dielectric surface.
- 2. The printing unit according to claim 1, wherein the tubular imaging form is seamless.
- 3. The printing unit according to claim 1, wherein the print cylinder and blanket cylinder each include pneumatic sleeve-locking and releasing devices.
- 4. The printing unit according to claim 1, wherein the print cylinder includes a registering device.
- 5. The printing unit according to claim 1, further comprising a first frame wall and a second frame wall for supporting respective ends of the print cylinder and the blankets cylinder, the second frame wall including respective door assemblies assigned to each of the print cylinder and blanket cylinder.
- 6. The printing unit according to claim 5, wherein the door assemblies are pivotable around a substantially vertically extending axis on the second frame wall.
- 7. The printing unit according to claim 6, wherein the door assemblies each include a linkage assembly and a clamping mechanism, and wherein each of the print cylinder and the blanket cylinder include a bearing housing, each linkage assembly actuating its respective clamping mechanism to clamp and release a respective bearing housing.
- 8. The printing unit according to claim 1,
- wherein the blanket cylinder includes an upper and lower blanket cylinder, and
- wherein the print cylinder further includes an upper and lower print cylinder,
- the printing unit further including a first frame wall and a second frame wall for supporting respective ends of the upper print cylinder, upper blanket cylinder, lower blanket cylinder, and lower print cylinder, the second frame wall having respective door assemblies assigned to each of the upper print cylinder, upper blanket cylinder, lower blanket cylinder, and lower print cylinder, the door assemblies assigned to the upper print cylinder, the lower blanket cylinder, and the lower print cylinder being pivotable around a horizontally extending pivot axis.
- 9. The printing unit according to claim 1, wherein:
- the imaging unit includes a doner unit.
- 10. The printing unit according to claim 9, wherein:
- the doner unit includes a powder substance doner toner.
- 11. The printing unit according to claim 9, wherein:
- the doner unit includes a doner roll.
- 12. The printing unit according to claim 1, wherein:
- the imaging unit includes a fusing unit.
- 13. The printing unit according to claim 1, wherein:
- the imaging unit includes a cleaner.
- 14. A method of providing an image in a printing unit, comprising:
- providing a rotatable print cylinder;
- providing an imaging unit inside the printing unit;
- mounting a tubular imaging form having a continuous outer surface axially on the rotatable print cylinder;
- imaging the tubular imaging form using the imaging unit;
- removing the tubular imaging form axially from the rotatable print cylinder; and
- imaging the tubular imaging form by producing couples of micro dipoles on a dielectric surface of the tubular imaging form.
- 15. The method according to claim 14, further comprising:
- imaging the tubular imaging form by providing a powder substance doner toner on the tubular imaging form.
- 16. The method according to claim 15, further comprising:
- fusing the powder substance doner toner to the tubular imaging form.
- 17. The method according to claim 15, further comprising:
- cleaning the powder substance doner toner off the tubular imaging form.
Parent Case Info
This application is a division of U.S. patent application Ser. No. 08/577,642, filed Dec. 22, 1995, now U.S. Pat. No. 5,813,336.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
Country |
Parent |
577642 |
Dec 1995 |
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