Bilderzeugungsvorrichtung und Verfahren zur Abstufungskorrektur in einer Bilderzeugungsvorrichtung und Programm

Details

Veröffentlichungs-Nr.

EP2607959

Aktenzeichen

EP12198460

Anmeldetag

20. Dezember 2012

Veröffentlichung

31. Juli 2019

Erteilung

31. Juli 2019

Rechtsraum

EP

IPC

G03G15/00G03G15/20

Abstract

If the temperature of a fixing unit is not stable when automatic gradation correction is performed, an error occurs in gradation correction when a chart for gradation measurement is output. An image forming apparatus of the present invention is characterized by including a unit configured to transfer a toner image based on image data onto a sheet, to pass the sheet through a fixing unit, and to output a first chart (S607); a unit configured to create a conversion table for gradation correction using a value obtained by reading the output first chart (S613); and a stabilization processing unit configured to stabilize the fixing unit by outputting a second chart before outputting the first chart in a case where creation of the conversion table for gradation correction is instructed (S605), wherein the stabilization processing unit outputs the second chart in a number of sheets specified in advance by a user.

Anmelder

Firma

CANON KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete