| 摘要 |
When an inkjet printer includes suction means for sucking the outside air into the inkjet printer, a heated recording medium is rapidly cooled by the air flowing in a vicinity of a discharge port for the recording medium. This causes fluctuations in surface temperature, resulting in degraded image quality. Accordingly, the inkjet printer has both a configuration capable of directly sucking, into a carriage, the outside air sucked into an apparatus, and a configuration of preventing the air from passing through an inside of the carriage. Thus, a temperature of the inside of the carriage can be reduced effectively. In order to prevent a reduction in temperature of the recording medium in the vicinity of the discharge port, a heater is arranged so as to increase a heating capacity of heating. Through temperature control on the heater based on a temperature of a region that is easily reduced in temperature, a local reduction in temperature of the recording medium is suppressed. |
| 主权项 |
1. An inkjet printer for recording an image on a recording medium by ejecting ink onto the recording medium from a recording head while intermittently conveying the recording medium, the inkjet printer comprising:
a recording head for ejecting ink onto a recording medium from a plurality of nozzles; conveyance means for conveying the recording medium; a carriage having the recording head mounted therein, the carriage being reciprocable in a direction intersecting with a conveyance direction of the recording medium; a platen for retaining the recording medium, the platen being arranged so as to be opposed to a surface of the recording head on which the plurality of nozzles are arranged; a housing having at least the platen and the carriage accommodated therein; a front paper guide arranged on a downstream side of the platen in the conveyance direction, for guiding the recording medium, the front paper guide comprising a heater for heating the recording medium; housing-suction means arranged on a rear surface side of the housing, for sucking a gas from an outside into an inside of the housing; and a cover connected to the housing in a pivotable manner and having a distal end arranged at a distance from the front paper guide so that the distal end is positioned lower in a vertical direction than the surface of the recording head on which the plurality of nozzles are arranged, wherein the cover is arranged closer to the front paper guide as approaching the distal end, wherein the front paper guide is curved in the vertical direction, wherein a part of the gas sucked by the housing-suction means is discharged through a portion between the front paper guide and the cover so that the discharged gas cools the recording medium on the front paper guide, and wherein a part of the heater, which is arranged on the front paper guide on an upstream side in the conveyance direction of the recording medium, has a higher heating capacity of heating the front paper guide than another part of the heater arranged on the downstream side so that the cooling is suppressed. |
