Patent · US Expired

Process and printing machine for determining registration errors

US6619209B2 · kind B2 · utility

7Cited by

6References

5Claims

0Family size

Assignee

NexPress Solutions LLC · US

Inventors

Ingo Dreher · Kiel, DE
Heiko Hunold · Wattenbek, DE
Patrick Metzler · Gettorf, DE
Stefan Schrader · Kiel, DE

Key dates

Filing date	Jul 30, 2002
Grant date	Sep 16, 2003
Priority date	—
Expiry date	Jul 30, 2022

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41P2233/52
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A process and printing machine for determining registration errors and correcting therefore. At least one first registration mark is applied onto a conveyor belt for transporting a sheet, and at least one second registration mark is applied onto the sheet adjacent to the first registration mark. The first registration mark and the second registration mark are detected, the distance between the first registration mark and the second registration mark is calculated, and the difference between the calculated distance and a distance without different speeds of the conveyor belt and the sheet (a target value) is calculated.

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