| 摘要 |
PROBLEM TO BE SOLVED: To prevent unnecessary use of components of a process cartridge that reduce the life thereof, while shortening an FPOT from a state where rollers of fixing means are separated from each other.SOLUTION: A first preparation operation mode, in which a start timing of an image-forming preparation operation for starting image formation is determined by a temperature of fixing means 13, and a second preparation operation mode, in which a start timing of the image-forming preparation operation is determined regardless of the temperature of the fixing means 13, the timing being earlier than the start timing of the first image-forming preparation operation, can be executed. Further, a value based on a residual amount of developer accommodated in a developer housing part 11 is compared to a value based on the life of a developer carrier 8S, and thereby selecting whether to start the image-forming preparation operation in the first preparation operation mode or in the second preparation operation mode. |
