Image forming apparatus supplying toner based on toner density of developer contained in containing unit and method for controlling image forming apparatus

摘要

An image forming apparatus includes an image forming unit including a containing unit that contains a developer including toner and forms an image based on image data by using the toner, a supply unit that supplies the toner into the containing unit, a consumption amount calculation unit that calculates, based on information related to a density of an image corresponding to the image data, a consumption amount in the containing unit, a detection unit that detects a toner density of the developer in the containing unit, a correction amount calculation unit that calculates, based on the information and the toner density detected by the detection unit, a correction amount by which the consumption amount is corrected, and a controller that controls the supply unit based on the consumption amount and the correction amount calculated by the correction amount calculation unit.

主权项

1. An image forming apparatus comprising:
an image forming unit including a containing unit configured to contain a developer including toner, and configured to form an image based on image data by using the toner contained in the containing unit; a supply unit configured to supply the toner into the containing unit; a consumption amount calculation unit configured to calculate, based on information related to a density of an image corresponding to the image data, a consumption amount of the toner consumed in the containing unit in a case where the image forming unit forms the image; a detection unit configured to detect a toner density of the developer contained in the containing unit; a correction amount calculation unit configured to calculate, based on the information related to the density of the image corresponding to the image data and the toner density detected by the detection unit, a correction amount by which the consumption amount calculated by the consumption amount calculation unit is corrected; and a controller configured to control the supply unit based on the consumption amount calculated by the consumption amount calculation unit and the correction amount calculated by the correction amount calculation unit, wherein the correction amount calculation unit includes: a first calculation unit configured to calculate a difference between the toner density detected by the detection unit and a target value of the toner density of the developer contained in the containing unit, and a second calculation unit configured to calculate a cumulative value of the difference calculated by the first calculation unit and correct the cumulative value of the difference based on the information related to the density of the image corresponding to the image data, wherein the correction amount calculation unit calculates the correction amount based on the difference calculated by the first calculation unit and the cumulative value of the difference corrected by the second calculation unit.