A printing apparatus, comprising: a mounting table on which a recording medium is placed; a support base for supporting the mounting table; a height adjustment mechanism for adjusting the height of the mounting table relative to the support base; and a position fixing mechanism for fixing the position of the mounting table relative to the support base at a height that is adjusted by the height adjusting mechanism, wherein a portion where the height adjustment mechanism is operated for adjustment and a portion where the position fixing mechanism is operated for fixing are on the same side as viewed from the mounting table, characterized in that: the height adjustment mechanism is a height adjustment screw including a contact part which passes through a through hole for height adjustment screw provided in the mounting table so that a side wall of the screw is screwed to an inner wall of the through hole for height adjustment screw, and which is brought into contact with the support base; by turning the height adjustment screw, the protrusion height of the contact part protruding from the mounting table to the support base side is adjusted, so that the height of the mounting table relative to the support base is adjusted; and the position fixing mechanism is a position fixing screw which passes through a through hole for position fixing screw provided in the mounting table. a mounting table on which a recording medium is placed; a support base for supporting the mounting table; a height adjustment mechanism for adjusting the height of the mounting table relative to the support base; and a position fixing mechanism for fixing the position of the mounting table relative to the support base at a height that is adjusted by the height adjusting mechanism, wherein a portion where the height adjustment mechanism is operated for adjustment and a portion where the position fixing mechanism is operated for fixing are on the same side as viewed from the mounting table, characterized in that: the height adjustment mechanism is a height adjustment screw including a contact part which passes through a through hole for height adjustment screw provided in the mounting table so that a side wall of the screw is screwed to an inner wall of the through hole for height adjustment screw, and which is brought into contact with the support base; by turning the height adjustment screw, the protrusion height of the contact part protruding from the mounting table to the support base side is adjusted, so that the height of the mounting table relative to the support base is adjusted; and the position fixing mechanism is a position fixing screw which passes through a through hole for position fixing screw provided in the mounting table. the height adjustment mechanism is a height adjustment screw including a contact part which passes through a through hole for height adjustment screw provided in the mounting table so that a side wall of the screw is screwed to an inner wall of the through hole for height adjustment screw, and which is brought into contact with the support base; by turning the height adjustment screw, the protrusion height of the contact part protruding from the mounting table to the support base side is adjusted, so that the height of the mounting table relative to the support base is adjusted; and the position fixing mechanism is a position fixing screw which passes through a through hole for position fixing screw provided in the mounting table.