Patent ID: 9046845
Filing Date: 2015-06-02
Classification: G03G,G06F,G06K,H04N

Abstract:
1. An image forming apparatus comprising: a setting changing unit configured to change an internal environment setting in response to an operation input performed on an operation input unit or in response to an external input; an operation invalidation unit configured to invalidate the operation input performed on the operation input unit in response to receiving an invalidation instruction; and a change prohibition unit configured to prohibit the external input from changing an item of the internal environment setting that is locked at the operation input unit in response to the operation invalidation unit receiving the invalidation instruction, wherein receiving the invalidation instruction at the operation input unit sets an invalidation level of the operation input unit, and wherein the operation invalidation unit is further configured to invalidate a set of operation inputs associated with an invalidation level if the set invalidation level of the operation input unit is greater than or equal to the invalidation level associated with the set of operation inputs.