Image forming apparatus and control method for the same

An image forming apparatus, comprising:

• a first cover configured to cover a first portion of a main body;
• a first cover switch configured to provide a first signal indicating a state of the first cover;
• a first interlock switch configured to provide a first interlock signal indicating a state of the first cover;
• a second cover configured to cover a second portion of the main body;
• a second cover switch configured to provide a second signal indicating a state of the second cover;
• a second interlock switch configured to provide a second interlock signal indicating a state of the second cover;
• a power supply unit configured to interrupt power supply to the image forming apparatus when an input of a third signal indicating an open state is received by the power supply unit;
• and
• a controller having a first input terminal configured to receive the first signal, a second input terminal configured to receive the second signal, and a third input terminal configured to receive the first interlock signal and the second interlock signal in an undifferentiated manner, wherein
• the controller is configured to:
• delay a first notification of an open state of the first cover and a second notification of an open state of the second cover for a predetermined period after any one of the first signal, the second signal, the first interlock signal, or the second interlock signal initially indicates an open state,
• perform the first notification if the first signal indicates the open state in the predetermined period after the third signal first indicates the open state, and
• perform the second notification if the second signal indicates the open state in the predetermined period after the third signal first indicates the open state.

A control method for an image forming apparatus including a controller with a first input terminal configured to receive a first signal indicating a state of a first opening/closing portion, a second input terminal configured to receive a second signal indicating a state of a second opening/closing portion, and a third input terminal configured to receive a third signal indicating a state of the first opening/closing portion and the second opening/closing portion, the control method comprising:

• delaying a first notification of an open state of the first opening/closing portion and a second notification of an open state of the second opening/closing portion for a predetermined period after any one of the first signal, second signal, or third signal initially indicates an open state;
• performing the first notification if the first signal indicates the open state during the predetermined period after the third signal first indicates the open state;
• and
• performing the second notification if the second signal indicates the open state in the predetermined period after the third signal first indicates the open state.