Image forming apparatus including a controller configured to control switching between a first mode and second mode

An image forming apparatus comprising:

• a fixing device comprising:
• a heating unit configured to contact a recording medium, onto which an image is transferred, and which is transported, so as to heat the recording medium while rotating;
• and
• a pressurizing unit configured to press the recording medium against the heating unit,
• wherein the fixing device is configured to fix the image to the recording medium;
• and
• a controller configured to control switching between a first mode for fixing the image to the recording medium and a second mode for making a transport speed of a sheet member that passes through the fixing device slower than a peripheral speed of the heating unit,
• wherein the controller is configured to make the peripheral speed of the heating unit in the second mode faster than the peripheral speed of the heating unit in the first mode.

An image forming apparatus comprising:

• a fixing means comprising:
• a heating means for contacting a recording medium, onto which an image is transferred, and which is transported, so as to heat the recording medium while rotating;
• and
• a pressurizing means for pressing the recording medium against the heating means,
• wherein the fixing means is for fixing the image to the recording medium;
• and
• a control means for controlling switching between a first mode for fixing the image to the recording medium and a second mode for making a transport speed of a sheet member that passes through the fixing means slower than a peripheral speed of the heating means,
• wherein the control means is for, in the second mode, making a pressing force of the pressurizing means weaker than that in the first mode.

An image forming apparatus comprising:

• a fixing device comprising:
• a heater configured to contact a recording medium, onto which an image is transferred, and which is transported, so as to heat the recording medium while rotating;
• and
• a pressure roller configured to press the recording medium against the heating unit,
• wherein the fixing device is configured to fix the image to the recording medium;
• and
• a controller configured to control switching between a first mode for fixing the image to the recording medium and a second mode for making a transport speed of a sheet member that passes through the fixing device slower than a peripheral speed of the heating unit,
• wherein the controller is configured to, in the second mode, make a pressing force of the pressure roller weaker than that in the first mode.