Drying apparatus and printing apparatus

摘要

In an inkjet printing apparatus, heaters are enclosed with a heater casing, achieving accumulation of heated air and efficient performance of heating. A blowing fan blows air to the heaters. The heater casing includes a blowing port configured to narrow and blow warm air heated with the heaters to a transportation path outside the heater casing in a direction along the transportation path. The warm air narrowed at the blowing port obtains an increased air velocity thereof. In addition, uniform air-quantity distribution and uniform heat-quantity are obtainable. Moreover, the heaters face the transportation path. Consequently, the heaters are provided closer to the transportation path than a conventional external heater. This suppresses heat loss.

主权项

1. A drying apparatus for drying ink adhering to a print medium, the drying apparatus comprising:
a heater facing a transportation path where the print medium is transported; a blowing source configured to blow air to the heater; and a casing configured to enclose the heater, the casing comprising: an inflow port into which the air from the blowing source flows; and a blowing port configured to narrow and blow warm air heated with the heater to the transportation path outside the casing in a direction along the transportation path; an exhaust unit disposed outside the casing and configured to exhaust the warm air blown through the blowing port to the transportation path; a suction unit configured to supply air to the blowing source; and a warm-air circulator configured to supply the warm air collected in the exhaust unit to the suction unit, the suction unit comprising: an outside-air suction port configured to suck outside air; a warm-air suction port provided as the exhaust unit and the warm-air circulator on a path connecting the blowing source and the outside-air suction port, and configured to suck the warm air blown to the transportation path; a suction-blowing source provided on the path adjacent to the outside-air suction port rather than the warm-air suction port, and configured to suck the outside air; and a dry controller configured to change difference in quantity of air between the blowing source and the suction-blowing source, wherein the suction-blowing source is set to blow a smaller quantity of air than the blowing source.