Control system for a printing press

• US 5,805,280 A
• Filed: 09/28/1995
• Issued: 09/08/1998
• Est. Priority Date: 09/28/1995
• Status: Expired due to Term

• Current Assignee: Shanghai Electric (Group) Corporation (City of Shanghai)
• Original Assignee: GOSS Graphic Systems(China) Company Limited (City of Shanghai)
• Inventors: Nemeth, Robert, Wang, Xin Xin, Lasken, Richard D.
• Primary Examiner(s): Pham, Hoa Q.
• Application Number:
  US08/536,234
• Time in Patent Office: 1,076 Days
• Field of Search: 356/244, 356/237, 356/239, 356/394, 356/445-448, 356/429-431, 356/440, 356/402, 356/407, 356/408, 356/425, 356/380, 356/379, 101/365
• US Class Current: 356/244
• CPC Class Codes: B41F 33/0009 Central control units
• CPC Class Codes: B41F 33/0036 Devices for scanning or checking the printed matter for quality control

Abstract

A control system (60) for a printing press having a printed copy, a device (68 and 70) for manually using the copy to control operation of the press based on information on the copy, and device (80 and 82) for automatically reading the copy while excluding any control by target information on the copy, and controlling operation of the press based upon information on the copy.

Claims

1. A control system for a printing press comprising:

at least one camera having a field of view;

support means for supporting and moving a copy printed by the printing press between a first position spaced from the field of view and a second position in the field of view of the at least one camera; and

,

a first plate displaying a gray scale and being selectively movable into the field of view of the at least one camera.

2. The system of claim 1 wherein the support means rotatably moves between the first and second positions.

3. The system of claim 1 wherein the support means comprises a table which develops a vacuum to releasably retain the copy on the table.

4. The system of claim 1 further comprising a second plate having a uniform surface adapted for selective exposure to the field of view of the at least one camera.

5. The system of claim 4 wherein the second plate is exposed to the field of view of the at least one camera when the support means is in the first position.

6. The system of claim 5 wherein the second plate is blocked from the field of view of the at least one camera when the support means is in the second position.

7. The system of claim 4 wherein the second plate is selectively movable into the field of view of the at least one camera.

8. The system of claim 4 wherein the first and second plates are exposed to the field of view of the at least one camera at the same time.

9. The system of claim 1 wherein the first plate and the copy are exposed to the field of view of the at least one camera at the same time.

10. A control system for a printing press, comprising:

at least one camera having a field of view;

a table for releasably retaining a copy printed by the printing press;

means for moving the table retaining the copy into the field of view of the at least one camera;

a first plate having a gray scale;

means for moving the first plate into the field of view of the at least one camera;

a second plate having a uniform surface; and

means for moving the second plate into the field of view of the at least one camera.

11. The system of claim 10 wherein the first and second plates are exposed to the field of view of the at least one camera at the same time.

12. The system of claim 10 wherein the first plate and the copy are exposed to the field of view of the at least one camera at the same time.

13. A control system for a printing press comprising:

at least one camera having a field of view;

a table for supporting and moving a copy printed by the printing press between a first position spaced from the field of view and a second position in the field of view of the at least one camera; and

,

a first plate displaying a uniform surface and being selectively movable into the field of view of the at least one camera.

14. The system of claim 13 wherein the table rotatably moves between the first and second positions.

15. The system of claim 13 wherein the table develops a vacuum to releasably retain the copy.

16. The system of claim 13 further comprising a second plate having a gray scale adapted for selective exposure to the field of view of the camera.

17. The system of claim 16 wherein the first and second plates are exposed to the field of view of the at least one camera at the same time.

18. The system of claim 16 wherein the second plate and the copy are exposed to the field of view of the at least one camera at the same time.

19. The system of claim 13 wherein the first plate is exposed to the field of view of the at least one camera when the table is in the first position.

20. The system of claim 19 wherein the first plate is blocked from the field of view of the at least one camera when the table is in the second position.

21. A control system for a printing press comprising:

at least one camera having a field of view;

a table for supporting and moving a copy printed by the printing press between a first position spaced from the field of view and a second position in the field of view of the at least one camera; and

,

a first plate displaying a uniform surface adapted for selective exposure to the field of view of the camera.

22. The system of claim 21 wherein the first plate is exposed to the field of view of the at least one camera when the table is in the first position.

23. The system of claim 22 wherein the first plate is blocked from the field of view of the at least one camera when the table is in the second position.