| 摘要 |
An image forming apparatus that can reduce the number of signal lines that can respond to interrupt processing by conducting I/O control that can acquire irregularly generated sensor detection signals. Identification control means of the image forming apparatus uses the data line in the period other than when conducting identification control of the detection means or the drive means to acquire the data of the specified detection means as valid data. Delay of the detection response time to irregularly generated signals can be minimized by using the data line other than when conducting identification control of the detection means or the drive means to acquire irregularly generated detection signals.
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