| 摘要 |
PURPOSE: To enable a user to always obtain an adequate image density without using an instruction input means and without being conscious of a change in the image density. CONSTITUTION: This image density adjuster of an image forming device is adjustable in the image density by manual selection and is equipped with a memory means 29 for storing the manual selection state of the image density and an image density adjusting means 28 for executing the image density adjustment by calculating the correction value of development bias in accordance with the stored state of the memory means 29 and executing image density adjustment by using the correction value of development bias. |
