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Details

Veröffentlichungs-Nr.

EP2799930

Aktenzeichen

EP14165848

Anmeldetag

24. April 2014

Veröffentlichung

12. September 2018

Erteilung

12. September 2018

Rechtsraum

EP

IPC

G03G15/00G03G15/043H04N1/40H04N1/405H04N1/409G06K15/02

Abstract

An image forming apparatus (2000) forms an image by irradiating light from a light source (2200a, 2200b, 2200c, 2200d) to an image carrier (2030a, 2030b, 2030d, 2030e). The image forming apparatus includes: an image processing unit (3023) that processes image data at resolution N; and a control unit (3024) that generates modulation data to drive the light source (2200a, 2200b, 2200c, 2200d) at resolution mxN (m is a positive integer equal to or larger than 2), which is higher than the resolution N, based on the processed image data. Processing at the image processing unit (3023) is pseudo-halftone processing to perform line thinning or thickening on a part of the image data. The control unit (3024) converts the image data at the resolution N that has been subjected to the pseudo-halftone processing into data at the resolution mxN, and adjusts an amount of light for a part of the image data based on the resolution mxN.

Anmelder

Firmen

Ricoh Company, Ltd.
Ricoh Company Ltd.

Land

🇯🇵 Japan

Fachgebiete