Patent · US Active

Method and apparatus for controlling the registration of sheets

US8301048B1 · kind B1 · utility

3Cited by
2References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 18, 2005
Grant dateOct 30, 2012
Priority date
Expiry dateApr 17, 2027

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/0161
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

The invention relates to a method and a device for controlling the circumferential register in a digital multi-color printing machine for printing sheets during a printing process, whereby, for each sheet, at least one register mark per color printing unit of the multi-color printing machine is produced, assigned to said sheet and defined with respect to its position, and whereby, based on the determination of the position of the register marks of a sheet, the circumferential register of at least one sheet, which follows the sheet associated with said determined register marks downstream of the printing process, is controlled. In duplex printing a sheet by recto and verso printing with the invention, register marks are applied for each side and, in order to control recto and verso printing of at least one subsequent sheet, said register marks are analyzed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.