Cleaning unit and printing device

A cleaning unit that is used for a printing device configured to perform a viscous fluid printing process on a printing target using a screen mask, the cleaning unit comprising:

• a cleaning head configured to move a cleaning member for cleaning the screen mask between a cleaning position where the cleaning member is brought into contact with the screen mask and a standby position, and to clean the screen mask at the cleaning position;
• a cleaning member holder configured to support a first shaft and a second shaft, over which the cleaning member is bridged, the cleaning member holder having an opening section allowing the cleaning head to pass therethrough;
• a base section configured to detachably fix the cleaning member holder at a fixing position;
• a holder moving section configured to move the cleaning member holder between the fixing position of the base section and a replacing position where the cleaning member holder is detached from the base section and is unloaded to an outside;
• and
• a cleaning driving section having a connecting section configured to connect and disconnect to and from the first shaft in the cleaning member holder, the cleaning driving section driving the first shaft to wind.