COVER AND INKJET PRINTER INCLUDING SAME

The invention provides a cover and an ink jet printer having the same. The cover (70) is provided with: a cover holder (72); and a cap main body (82) which is fitted into the cap holder, covers the nozzle surface (44), and forms a sealed space (67) between the cap holder and the nozzle surface, the cap holder (72) having: a first side wall (75) which extends upward from the peripheral edge of the first bottom wall (73) and is formed in a frame shape in a plan view; and a protrusion (79) formed on the inner surface (75P) of the first side wall (75) and extending in the vertical direction, the cover main body (82) having: a second side wall (85) extending upward from the peripheral edge of the second bottom wall (83) and formed in a frame shape in a plan view; a lip part (86) which is provided at the upper end of the second side wall (85) and which can come into contact with the nozzle surface (44); and a groove (89) which is formed in the outer surface (85Q) of the second side wall (85), extends in the vertica