DRYING DEVICE AND PRINTING APPARATUS

Abstract

A drying device includes a support unit, a heating unit, and a control unit. The heating unit includes a duct, which has a blowing outlet, a suction inlet, and an air port and includes an air flow path, a heating section, a blower, and a first adjustment unit capable of adjusting an amount of air flowing into the air flow path from an outside of the duct through the air port. The control unit is capable of executing a first mode in which the first adjustment unit is controlled to adjust the amount of air in a state in which the heating section performs heating and a second mode in which the first adjustment unit is controlled to cause the amount of air to be more than the amount of air in the first mode in a state in which heating by the heating section is stopped.

Description

Claims

1. A drying device, comprising: a support unit configured to support, on a support surface, a medium transported after printing;a heating unit facing the support surface and being configured to heat the medium supported on the support surface after printing; anda control unit configured to control the heating unit, wherein the heating unit includes: a duct having a blowing outlet through which air is blown out toward the support surface, a suction inlet through which the air blown out through the blowing outlet toward the support surface is sucked, and an air port being different from the blowing outlet and the suction inlet, and including an air flow path through which the air is flowable;a heating section configured to heat at least one of the air in the air flow path and the medium supported on the support surface;a blower configured to cause the air in the air flow path to flow toward the blowing outlet; anda first adjustment unit configured to adjust an amount of air flowing into the air flow path from an outside of the duct through the air port,the duct has a facing region facing the support surface and a non-facing region not facing the support surface,the air port is disposed in the non-facing region, andthe control unit is configured to execute a first mode in which the first adjustment unit is controlled to adjust the amount of air in a state in which the heating section performs heating and a second mode in which the first adjustment unit is controlled to cause the amount of air to be more than the amount of air in the first mode in a state in which heating by the heating section is stopped.

2. The drying device according to claim 1, wherein the heating unit includes a temperature detection unit configured to detect an outside air temperature, andin the second mode, the control unit controls the first adjustment unit to increase the amount of air when the outside air temperature detected by the temperature detection unit is a first temperature to be more than the amount of air when the detected outside air temperature is a second temperature lower than the first temperature.

3. The drying device according to claim 2, wherein in the second mode, the control unit controls the blower to cause more air to flow toward the blowing outlet when the outside air temperature detected by the temperature detection unit is the first temperature than when the detected outside air temperature is the second temperature.

4. The drying device according to claim 1, wherein the heating unit includes a humidity detection unit configured to detect humidity in a region between the heating unit and the support surface, andin the second mode, the control unit controls the blower and the first adjustment unit, based on a result detected by the humidity detection unit.

5. The drying device according to claim 1, wherein the heating unit includes a second adjustment unit configured to adjust an opening degree of the suction inlet, andthe control unit controls the second adjustment unit to open the suction inlet in the first mode, and controls the second adjustment unit to cause an opening degree of the suction inlet in the second mode to be smaller than an opening degree of the suction inlet in the first mode.

6. The drying device according to claim 1, wherein the heating unit has, inside the duct, a partition wall that separates the air flow path and the heating section, andwhen, in the air flow path, a portion thereof aligned with the heating section through intermediation of the partition wall in an orthogonal direction orthogonal to the support surface is regarded as a parallel installation portion, the air port is in communication with the air flow path downstream of the parallel installation portion in a flowing direction of air flowing through the air flow path.

7. The drying device according to claim 6, wherein the partition wall contains a heat insulating material.

8. The drying device according to claim 1, comprising a removal member configured to remove a foreign matter from the air flowing through the air port.

9. A printing apparatus, comprising: a transport unit configured to transport a medium;a printing unit configured to perform printing on the medium transported by the transport unit;a support unit configured to support, on a support surface, the medium after printing performed by the printing unit;a heating unit facing the support surface and being configured to heat the medium supported on the support surface after printing; anda control unit configured to control the heating unit, wherein the heating unit includes: a duct having a blowing outlet through which air is blown out toward the support surface, a suction inlet through which the air blown out through the blowing outlet toward the support surface is sucked, and an air port being different from the blowing outlet and the suction inlet, and including an air flow path through which the air is flowable;a heating section configured to heat at least one of the air in the air flow path and the medium supported on the support surface;a blower configured to cause the air in the air flow path to flow toward the blowing outlet; anda first adjustment unit configured to adjust an amount of air flowing into the air flow path from an outside of the duct through the air port,the duct has a facing region facing the support surface and a non-facing region not facing the support surface,the air port is disposed in the non-facing region, andthe control unit is configured to execute a first mode in which the first adjustment unit is controlled to adjust the amount of air in a state in which the heating section performs heating and a second mode in which the first adjustment unit is controlled to cause the amount of air to be more than the amount of air in the first mode in a state in which heating by the heating section is stopped.