BACKGROUND OF THE INVENTION

Field of the Invention

The present application relates to a printing apparatus, a control method thereof, and a storage medium.

Description of the Related Art

Conventionally, the ink jet printing technique has been widely researched and developed in view of advantages, such as that printers can be manufactured at comparatively low costs, and an ink jet printing apparatus has prevailed widely as consumer equipment, such as a printer and a multifunction peripheral.

Further, in recent years, the demand to increase the amount of ink that is stored within the ink jet printing apparatus is increasing. Because of this, a printer having a sub tank for storing ink, in addition to an ink tank, has been proposed. By providing a sub tank, it is made possible to continue printing without interruption even while a user is exchanging an ink tank with another. Among the ink jet printing apparatuses, many of them adopt a method of keeping the pressure within the print head negative, that is, a so-called water head difference method, by providing an atmosphere communication opening in an ink storage unit, such as a sub tank, and designing so that the ink liquid surface within the ink storage unit is lower than the ink ejection port in the gravitational direction.

In a case where the ink jet printing apparatus adopting the water head difference method is inclined considerably, the relationship between the water head differences changes, and therefore, the pressure within the print head becomes positive or negative whose absolute value is large and there is a possibility that the meniscus formed at the ink ejection port is destroyed. In a case where the meniscus at the ink ejection port is destroyed, there is a possibility that ink leaks out of the ink ejection port or the atmosphere communication opening of the ink storage unit. In order to prevent the ink leakage due to inclination, it is known to pull out in advance the ink within the ink jet printing apparatus at the time of transport during which there is a possibility that the ink jet printing apparatus is inclined considerably. Hereinafter, movement (transport) in order to install a printer once installed at a certain position to another position is called secondary transport.

Japanese Patent Laid-Open No. 2015-44357 has disclosed that in a case where the secondary transport of an ink jet printing apparatus having a sub tank is performed, in accordance with the ink remaining amount at the time of start of the ink discharge operation before the secondary transport, the ink filling sequence after the secondary transport is changed. According to Japanese Patent Laid-Open No. 2015-44357, in a case where there is not a possibility that air enters the ink supply tube at the time of pulling out ink before the secondary transport, it is possible to reduce the ink consumption by minimizing the ink suction operation at the time of installation after the secondary transport.

SUMMARY OF THE INVENTION

However, Japanese Patent Laid-Open No. 2015-44357 does not take into consideration the state of the ink supply path after ink is pulled out and in a case where the printing apparatus having the ink supply path such as this is filled with ink, it is not possible to optimize the time necessary for filling and the ink consumption.

Consequently, in view of the above-described problem, an object of one embodiment of the present disclosure is to optimize the time necessary for filling and the ink consumption in a case where the printing apparatus in which ink has been pulled out of the ink supply path is filled with ink.

One embodiment of the present disclosure is a printing apparatus comprising: a storage unit configured to store ink; a print head having an ejection port from which ink supplied from the storage unit is ejected; an ink supply path that connects the storage unit and the print head; a suction unit configured to perform suction at the ejection port; and a supply control unit configured to supply ink stored in the storage unit to the ink supply path and the print head by performing suction at the ejection port by the suction unit, and the printing apparatus comprises an acquisition unit configured to acquire information relating to ink discharge from the ink supply path and the supply control unit determines a number of times of suction by the suction unit based on the information.

Further features of the present invention will become apparent from the following description of exemplary embodiments with reference to the attached drawings.

