Patent ID: 9290006
Filing Date: 2016-03-22
CPC Classification: B41J,G03G

Claim Text:
1. An image forming apparatus comprising: an image forming unit configured to form a measurement image on a sheet; a fixing unit configured to heat the measurement image formed on the sheet to fix the measurement image to the sheet; a measurement unit arranged downstream of the fixing unit in a conveyance direction of the sheet and configured to measure color of the measurement image fixed by the fixing unit; a storage unit configured to store a plurality of pieces of conversion setting information each of which corresponds to one of a plurality of temperatures; a selecting unit configured to select a piece of conversion setting information from among the plurality of pieces of conversion setting information; a conversion unit configured to convert a measurement result of the measurement unit into a measurement result at a predetermined temperature based on the selected conversion setting information; and a control unit configured to cause the image forming unit to form the measurement image on the sheet, and cause the fixing unit to fix the formed measurement image onto the sheet, and wherein, when the sheet passed through the fixing unit is firstly conveyed to a measurement position, the control unit causes the measurement unit to measure a color of the measurement image and first measurement color data is obtained, after that, the control unit causes the measurement unit to measure a color of the measurement image under a condition that a temperature of the sheet is lower than the predetermined temperature, and second measurement color data is obtained; and a generation unit configured to generate conversion setting information based on the first and second measurement color data and store the generated conversion setting information in the storage unit.