(19)
(11) EP 0 123 305 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.10.1985 Bulletin 1985/44

(43) Date of publication A2:
31.10.1984 Bulletin 1984/44

(21) Application number: 84104516

(22) Date of filing: 20.04.1984
(84) Designated Contracting States:
DE FR GB

(30) Priority: 25.04.1983 US 488401

(71) Applicant: QUAD/TECH
 ()

(72) Inventors:
  • Quadracci, Thomas A.
     ()
  • Kirby, Jerry L.
     ()
  • Sainio, Jeffrey W.
     ()
  • Reynolds, Bruce A.
     ()

   


(54) Register control system for a printing press


(57) OOptical scanners (18, 19) mount to a press (1 to 8) and provide information to a register control system (15, 16, 17, 20) which automatically maintains color-to-color register. The same information is processed to provide signals to a scanner interface circuit (17) which controls the position of the optical scanners (18,19) to insure that they track the register patterns on the moving web (6).






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