Patent ID: 9007610
Filing Date: 2015-04-14
Classification: G03G

Abstract:
1. An image forming device comprising: a license accepting unit for accepting assignment of a license; a switching unit for switching a system speed when the assignment of the license has been accepted by said license accepting unit; a storing unit for storing information indicating that the system speed has been switched when the system speed has been switched by said switching unit; a switch determination unit for determining whether or not the information indicating that the system speed has been switched is stored in said storing unit; a first image stabilization unit for performing two-stage image stabilization when it is determined by said switch determination unit that the information is stored, the two-stage image stabilization being a process for determining a setting value of a parameter relating to an image formation process of the image forming device; and a second image stabilization unit for performing single-stage image stabilization when it is determined by said switch determination unit that the information is not stored, the single-stage image stabilization being a process for determining said setting value, wherein in said two-stage image stabilization, a provisional setting value of said parameter is determined within a first adjustable range based on sampling images formed using a plurality of values of said parameter that are different from each other and within said first adjustable range, and said setting value is determined within a second adjustable range narrower than said first adjustable range and including said provisional setting value based on sampling images formed using a plurality of values of said parameter that are different from each other and within said second adjustable range, and in said single-stage image stabilization, said setting value is determined within a third adjustable range including an already determined setting value based on sampling images formed using a plurality of values of said parameter that are different from each other and within said third adjustable range.