Bilderzeugungsvorrichtung und Positionskorrekturverfahren

Details

Veröffentlichungs-Nr.

EP3508922

Aktenzeichen

EP18214169

Anmeldetag

19. Dezember 2018

Veröffentlichung

15. Juni 2022

Erteilung

15. Juni 2022

Rechtsraum

EP

IPC

H04N1/00G03G15/00G03G15/01

Abstract

An image forming apparatus of an embodiment comprises a printer unit to print a sheet with a plurality of single colors and generate a correction sheet including a plurality of single color regions at different positions between a first reference region and a second reference region. The first and second reference regions are a reference color. An image reading unit is configured to read the correction sheet. A processor is configured to calculate a shift amount in a main scanning direction of the printer unit for each single color region based on RGB luminance values obtained from the correction sheet by the image reading unit and to correct a printer scan position along the main scanning direction for each single color in the plurality of single colors corresponding to the single color regions using calculated shift amounts.

Anmelder

Firmen

Kabushiki Kaisha Toshiba
Toshiba TEC Kabushiki Kaisha

Land

🇯🇵 Japan

Fachgebiete