| 摘要 |
An image forming apparatus includes a sheet ejection sensor 4 disposed immediately downstream of a fixing device 3 that detects the passage of a sheet P, time measurement means 61 that measure a time T 4 from when a print start signal is transmitted during an margin adjustment to when the sheet is detected by the sheet ejection sensor, time storage means 62 that store a proper setting time T 5 that is considered as an appropriate time from when the print start signal is transmitted to when the sheet is detected by the sheet ejection sensor so as to set predetermined end margins, and control means 63 that automatically corrects an signal transmission timing of the print start signal so as to achieve a match between the measured time measured by the time measurement means and the proper setting time stored by the time storage means.
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