Image forming apparatus having heating body, electric power supply, and controller

A method for controlling an electric power supply to supply electric power to a heat source and control a conveying mechanism to convey a recording sheet, the heat source being configured to heat a heating body, and the heating body being configured to thermally fix developing agent onto a recording sheet conveyed by the conveying mechanism, the method comprising:

• executing a continuous conveying process to control the conveying mechanism to continuously convey a plurality of recording sheets in succession to the heating body;
• while executing the continuous conveying process, executing a first output process at a timing prior to a prescribed timing, the first output process being for controlling the electric power supply to output electric power to the heat source, the prescribed timing being prior to a timing at which each recording sheet reaches the heating body;
• and
• while executing the continuous conveying process, executing a second output process for a prescribed period from the prescribed timing, the second output process being for controlling the electric power supply to output electric power to the heat source such that an output level of the electric power that is outputted from the electric power supply in the second output process has a tendency to become higher than an output level of the electric power that is outputted from the electric power supply in the first output process.

A non-transitory computer-readable recording medium storing computer-readable instructions for a controller, the controller being configured to control an electric power supply to supply electric power to a heat source and control a conveying mechanism to convey a recording sheet, the heat source being configured to heat a heating body, the heating body being configured to thermally fix developing agent onto a recording sheet conveyed by the conveying mechanism, the computer-readable instructions, when executed by a processor of the controller causing the controller to perform:

• executing a continuous conveying process to control the conveying mechanism to continuously convey a plurality of recording sheets in succession to the heating body;
• while executing the continuous conveying process, executing a first output process at a timing prior to a prescribed timing, the first output process being for controlling the electric power supply to output electric power to the heat source, the prescribed timing being prior to a timing at which each recording sheet reaches the heating body;
• and
• while executing the continuous conveying process, executing a second output process for a prescribed period from the prescribed timing, the second output process being for controlling the electric power supply to output electric power to the heat source such that an output level of the electric power that is outputted from the electric power supply in the second output process has a tendency to become higher than an output level of the electric power that is outputted from the electric power supply in the first output process.