Patent ID: 8837966

Claim:
A control apparatus comprising: a toner density specifying unit that specifies a toner density in a developer which includes a toner and a carrier, the developer being stored in a developing device, the developing device developing an image by using the developer so as to form a toner image; a toner density controller that performs control such that the toner density specified by the toner density specifying unit approximates a predetermined toner density target value; a first calculator that calculates a value corresponding to an image density of an image which is to be output after a timing; a correction amount specifying unit that specifies a correction amount for the predetermined toner density target value at the timing, when a condition that an absolute value of a difference between the first value and a second value, which serves as a reference value, used for specifying the correction amount for the predetermined toner density target value, is greater than a predetermined threshold is satisfied, the correction amount specifying unit specifying a smaller correction amount for the predetermined toner density target value, compared with when the condition is not satisfied; and a correcting unit that corrects the predetermined toner density target value on the basis of the correction amount specified by the correction amount specifying unit.