Patent ID: 7346309

Claim:
An image forming system comprising: an image forming device; and a post-processor for performing post-processing on a recording medium on which an image has been formed by the image forming device, the post-processor having a heating section; wherein the image forming system includes: a first trigger detection section for detecting a first warming-up start trigger; a second trigger detection section for detecting a second warming-up start trigger; a control section for controlling warming-up of the heating section; and a setting section for setting a first mode or a second mode, wherein, if the first mode has been set at the setting section, the control section starts warming-up of the heating section in response to a detection of the first warming-up start trigger by the first trigger detection section, and if the second mode has been set at the setting section, the control section starts warming-up of the heating section in response to a detection of the second warming-up start trigger by the second trigger detection section; and wherein the first warming-up trigger includes at least one of switching power on to the post-processor and switching power on to the image forming device, and the second warming-up start trigger is post-processing setting information.