| 摘要 |
An image forming apparatus includes: a detection unit that detects the position of the leading edge of a medium in a sub-scanning direction, the detection unit being moved in a main-scanning direction at a speed identical to the speed of a carriage that moves in the main-scanning direction and discharges ink; a position acquisition unit that acquires the end position of the detection unit in the main-scanning direction when image formation on a first medium is completed; and a control unit that controls a leading edge detection position of the detection unit in the main-scanning direction according to a detection unit moving amount and a medium moving amount when the detection unit detects the leading edge of a second medium on which an image is formed after the image formation on the first medium.
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