| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately measure a toner consumption irrespective of a toner residual amount in an image formation apparatus. <P>SOLUTION: A first calculation section 41 calculates a toner consumption by a first calculation method. A second calculation section 42 calculates a toner consumption according to a predetermined formula by a second calculation method after a predetermined switching condition is satisfied. A coefficient calculation section 43 calculates a parameter value in the formula of the second calculation method based on the toner consumption calculated by the first calculation method. That is, the second calculation section 42 calculates a toner consumption using the parameter value calculated by the coefficient calculation section 43. <P>COPYRIGHT: (C)2012,JPO&INPIT |
