A charge control method for a printing apparatus including a first power storage unit provided in a carriage having a printhead mounted thereon and a second power storage unit that is provided on a main body side, is capable of charging the first power storage unit and having a capacity higher than the first power storage unit, the charge control method comprising:
- determining whether or not the second power storage unit has a power storage capacity less than a threshold value;
- and
- if it is determined in the determining step that the power storage capacity of the second power storage unit is less than the threshold value, controlling a switch that performs switching between a charging path for charging the first power storage unit by power supplied from a power source and a charging path for charging the second power storage unit from a power source of the printing apparatus, such that the first power storage unit can be charged by the power supplied from the power source.