Abstract: A cam 37 is rotated in an arrow F direction. This causes sheet conveyance rollers 10a, 10b and guide elements 33, 34 to rotate on a lower conveyance shaft 27 and an upper conveyance shaft 30, respectively, so that they are separated from a drive roller 12. Thus, a spur plate 21 faces the upward stream end with respect to the recording sheet conveyance direction and opens in synchronism with the sheet conveyance rollers 10a and 10b, etc. Accordingly, it is possible to readily remove a recording sheet subjected to the jam.

Abstract: An extension guide unit 30 is provided on a side portion of a recording medium conveying passage. An extension guide 36 is held in a wound state in an extension guide holder 31 of the extension guide unit 30. In order to convey a recording medium, the extension guide 36 is drawn out, by which the recording medium is guided. This enables the recording medium to be smoothly conveyed.

Abstract: A first position control member, which presses a recording sheet between a sheet conveyance roller 28c and an image forming area, is disposed and a second position control member, which presses the recording sheet between the image forming area and a spur 42, is disposed. Thus, of the recording sheet in the course of conveyance, a portion located at the image forming area is pressed and stretched by the first position control member 34 and the second position control member 38, and an interval between this portion and an ink ejection surface is maintained at a predetermined distance. Accordingly, even if ink ejected from the ink ejection outlets is absorbed into the recording sheet, so that a fiber of the recording sheet expands, no unevenness is formed on the recording sheet. Therefore, it is possible to suppress the cocking.