TONE CORRECTION PROCESS THAT CORRECTS TONE OF IMAGE FORMED BY IMAGE FORMING APPARATUS

摘要

An image forming unit forms an electrostatic latent image on an image carrier based on image data converted by a conversion unit, and the image is developed by a developing portion using toner. A replenishment control unit controls an amount of the toner with which the developing portion is replenished based on a toner density in the developing portion so that the toner density in the developing portion reaches a target density. A first determination unit determines a target density based on a result of a first measurement image being measured. A correction unit corrects conversion conditions based on a result of measuring a second measurement image and a correction condition. A second determination unit determines the correction condition based on the target density determined by the first determination unit.

主权项

1. An image forming apparatus comprising:
a conversion unit configured to convert image data using a conversion condition; an image forming unit configured to form an image on an image carrier based on the image data converted by the conversion unit, the image forming unit including a developing portion configured to, using toner, develop an electrostatic latent image formed based on the image data converted by the conversion unit; a detection unit configured to detect a toner density in the developing portion; a replenishment control unit configured to, based on a result of the detection performed by the detection unit, control an amount of toner the developing portion is replenished with so that the toner density in the developing portion reaches a target density; a measurement unit configured to measure a measurement image formed on the image carrier by the image forming unit; a first determination unit configured to cause the image forming unit to form a first measurement image, cause the measurement unit to measure the first measurement image, and determine the target density based on a result of measuring the first measurement image; a correction unit configured to cause the image forming unit to form a second measurement image, cause the measurement unit to measure the second measurement image, and correct the conversion condition based on a result of measuring the second measurement image and a correction condition; and a second determination unit configured to determine the correction condition based on the target density determined by the first determination unit.