Patent ID: 9316987
Filing Date: 2016-04-19
CPC Classification: G03G

Claim Text:
1. An image forming apparatus, comprising: a photoconductor to form an electrostatic latent image; a special color developing device to develop the electrostatic latent image with a special color toner other than standard color toners on the photoconductor to form a special color toner image; an adhesion amount adjuster to adjust a special color toner adhesion amount by changing an application bias between the photoconductor and a developing sleeve of the special color developing device; a setting unit to set brightness of the special color toner; a developing-performance adjuster to adjust a developing performance of the special color developing device according to a setting value of the brightness of the special color toner set by the setting unit, wherein the developing-performance adjuster adjusts the developing performance of the special color developing device to a developing performance different from a developing performance set to each of standard color developing devices in adjustment of densities of the standard color toners; a mode setting unit to set one of a productivity first mode and an image-quality first mode on receipt of a mixed job including a plurality of jobs with different settings in the special color toner adhesion amount and a type of recording media; and a job analyzer to recognize the special color toner adhesion amount and the type of the recording media for each of the plurality of jobs in the mixed job, wherein, when the productivity first mode is set, the developing-performance adjuster executes adjustment of the developing performance of the special color developing device according to the special color toner adhesion amount, for a job having a maximum special color toner adhesion amount in the mixed job, and the adhesion amount adjuster adjusts the special color toner adhesion amount by changing the application bias of the special color developing device, for a job having a special color toner adhesion amount less than the maximum special color toner adhesion amount.