Patent ID: 7964832
Filing Date: 2011-06-21
Classification: B41J

Abstract:
1. An evaluation device of an optical writing device, comprising: the optical writing device having: a light reception section to receive the light irradiated from the optical writing device; a drive section to retain the light reception section at a position opposite to an irradiation side of the optical writing device, and to move the light reception section in the main scanning direction; and a control section to light each light emitting element of the optical writing device in a previously set lighting pattern based on a light amount which is previously set; to drive the drive section so as to move the light reception section to a position opposite to the light emitting element to be lit; to calculate characteristic data for each light emitting element based on a light amount value of the light received by the light reception section; to calculate a first calculation value for each light emitting element based on the characteristic data for each light emitting element; to calculate a second calculation value different from the first calculation value for each light emitting element based on the characteristic data for each light emitting element; to calculate a third calculation value based on the first calculation value and the second calculation value for each light emitting element; and to instruct the display section to display the third calculation value.