| 摘要 |
An image forming apparatus includes an LED array head to which a vibration applying unit driven by a driver is attached. The LED array head is shifted by a predetermined amount in a direction at an angle theta relative to the axis of a photosensitive drum. LEDs are driven to emit the light in accordance with video data before and after the shift, and an electrostatic latent image according to the video data is formed on the photosensitive drum. Since the LED array head is shifted in a diagonal direction relative to the axis of the photosensitive drum, it is possible to form high-resolution dot lines in the axial direction even if the photosensitive drum is rotated at a constant speed.
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