Patent attributes
A planar metal platen opposes an ink jet recording head for ejecting solvent-based ink and is secured through supporting members formed of polyphenylene sulfide containing glass fibers to a metal frame under a state not touching the frame directly. The platen is fixed with a heater for drying ink on a recording medium on the platen quickly. Each supporting member is secured to the frame by means of a bolt penetrating an elongated hole, and a relative position of the supporting member and the platen supported by the member, and the frame and the ink jet recording head supported by the frame, can be adjusted by shifting the position of the bolt in the elongated hole. Consequently, transmission of heat from the heater to the platen is suppressed and good recording is ensured by suppressing partial temperature difference of the platen.