| 摘要 |
An image forming apparatus (100; 200) using an ink jet method includes an ink jet head (15) including a nozzle, configured to discharge ink from the nozzle to form an image on a recording medium (S), a carriage (14) configured to convey the ink jet head in a main scanning direction so that the ink jet head mounted thereon forms the image in the main scanning direction, a platen (12) configured to support the recording medium, wherein the recording medium is conveyed along the platen so that the image is formed in a sub-scanning direction, a jam detection mechanism (101, 102, 103) configured to detect a jam of the recording medium, and a vary mechanism (122, 130; 208, 209) configured to vary a distance between the ink jet head and the platen according to the jam detection performed by the jam detection mechanism.
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