Inkjet printer

An inkjet printer comprising:

• a platen that receives a recording medium thereon;
• an ink head including a nozzle that discharges ink onto the recording medium placed on the platen and that moves in a main scanning direction;
• a guide located on an upstream side of the platen in a secondary scanning direction perpendicular to the main scanning direction and that guides the recording medium toward the ink head, the guide including an upper surface tilted obliquely downward from a downstream side of the platen to the upstream side of the platen in the secondary scanning direction;
• and
• a grit roller provided in the platen and that moves the recording medium placed on the platen in the secondary scanning direction;
• wherein
• the guide includes at least one concave recess that is recessed from the upper surface of the guide;
• the at least one concave recess indicates a position of the grit roller in the main scanning direction;
• the at least one concave recess includes a first concave recess and a second concave recess;
• the first concave recess indicates a first position at a first end of the grit roller in the main scanning direction;
• and
• the second concave recess indicates a second position at a second end of the grit roller in the main scanning direction.