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Hot-melt type ink jet printer having heating and cooling arrangement

  • US 6,196,672 B1
  • Filed: 06/17/1998
  • Issued: 03/06/2001
  • Est. Priority Date: 06/27/1997
  • Status: Expired due to Term
First Claim
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1. A hot-melt type ink jet printer for forming an inked image on an image receiving medium comprising:

  • a frame;

    a nozzle head ejecting a hot-melt ink onto the image receiving medium;

    a main platen having one surface in confrontation with the nozzle head, the image receiving medium being fed in a feeding direction along the one surface, the main platen having an opposite surface;

    a cooling platen positioned downstream of the main platen in the feeding direction for cooling the inked image formed on the image receiving medium, the cooling platen having one and opposite surfaces;

    a discharge roller disposed downstream of the cooling platen for discharging the image receiving medium, the frame having a sheet discharge opening adjacent the discharge roller, an order of the main platen, the cooling platen and the discharge roller defining a sheet feed passage, wherein the frame is formed with a suction port at a position downstream of the main platen, the printer further comprises a fan disposed in the frame and positioned at a side facing the opposite surfaces of the main platen and the cooling platen, the fan introducing a cooling air into the frame through the sheet discharge opening and directing the cooling air toward the cooling platen through the suction port to cool the cooling platen, and the suction port includes a first suction port positioned between the main platen and the cooling platen at an upstream side of the cooling platen and open to the sheet feed passage so that the first suction port is closed by the image receiving medium when the image receiving medium passes along the sheet feed passage, and the hot-melt type ink jet printer further comprises an adiabatic partition member positioned in the first suction port for adiabatically separating the main platen from the cooling platen.

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