Global Patent Index - EP 0986893 A1

EP 0986893 A1 2000-03-22 - SYSTEM AND METHOD FOR CONTROL OF LASER SCANNERS IN AN IMAGING SYSTEM

Title (en)

SYSTEM AND METHOD FOR CONTROL OF LASER SCANNERS IN AN IMAGING SYSTEM

Title (de)

VORRICHTUNG UND VERFAHREN VON LASERABTASTERN IN EINEM BILDAUFNAHMESYSTEM

Title (fr)

SYSTEME ET PROCEDE POUR LA COMMANDE DE LECTEURS LASER DANS UN SYSTEME D'IMAGERIE

Publication

EP 0986893 A1 (EN)

Application

EP 98925130 A

Priority

  • US 9811212 W
  • US 86939597 A

Abstract (en)

[origin: WO9856164A1] A scanner module for use in an imaging system includes a laser scanner operable under control of the imaging system for scanning a laser spot along a scan line to write a plurality of pixels along the scan line. The scanner further includes a scanner module memory including pixel placement correction data downloadable to the imaging system for use in controlling the placement of pixels along the scan line. The scanner module memory may further include output power correction data downloadable to the imaging system for use in controlling the output power of the laser scanner in the generation of the plurality of pixels along the scan line. Imaging systems use the correction data stored in the one or more replaceable scanner modules for use in controlling the placement of pixels along the scan line and/or for use in controlling output pwer of the laser scanner. Systems and methods for generating the correction data for the laser scanner modules are also described. Scan correction data can be used to reduce differences in the scan profiles of multiple scanners, such that the multiple scanners produce substantially the same scan profile. In this manner, color planes formed using multiple scanners can be placed in substantial registration with one another, thereby alleviating the visual effects of scan profile differences from scanner-to-scanner.

IPC 1-7 (main, further and additional classification)

H04N 1/053; H04N 1/50; H04N 1/60

IPC 8 full level (invention and additional information)

G02B 26/10 (2006.01); H04N 1/053 (2006.01); H04N 1/113 (2006.01); H04N 1/23 (2006.01); H04N 1/50 (2006.01); H04N 1/12 (2006.01)

CPC (invention and additional information)

H04N 1/053 (2013.01); H04N 1/506 (2013.01); H04N 1/1135 (2013.01); H04N 1/12 (2013.01); H04N 2201/0471 (2013.01); H04N 2201/04712 (2013.01); H04N 2201/04768 (2013.01)

Combination set (CPC)

  1. H04N 2201/0471 + H04N 2201/04734 + H04N 2201/04746
  2. H04N 2201/04712 + H04N 2201/04734 + H04N 2201/04744
  3. H04N 2201/04768 + H04N 2201/04793 + H04N 2201/02443 + H04N 2201/04798

Citation (search report)

See references of WO 9856164A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 9856164 A1 19981210; EP 0986893 A1 20000322; JP 2002508902 A 20020319; KR 20010013427 A 20010226

INPADOC legal status


2002-03-20 [18R] REFUSED

- Effective date: 20011027

2000-08-23 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20000707

2000-03-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991207

2000-03-22 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT