Three-Dimensional Printing System with High Capacity Servicing Module

A three-dimensional printing system comprising:

• a printhead including an ejection face with a plurality of nozzles for ejecting droplets of printing fluid;
• a fluid supply that supplies printing fluid to the printhead;
• a movement mechanism coupled to the printhead configured to translate the printhead along two lateral axes;
• a maintenance module for maintaining the printhead including:
• a maintenance tray having a lateral perimeter and an upper side including a storage cap, a wiper, and spittoon;
• and
• an effluent tray having a lateral perimeter and underlying the maintenance tray, the effluent tray for receiving accumulated fluid from the maintenance tray;
• the periphery of the maintenance tray and the periphery of the effluent tray interengage when the maintenance tray is removably mounted over the effluent tray to define a cavity between a lower side of the maintenance tray and an upper side of the effluent tray;
• a motorized shaft that passes through the effluent tray and is removably coupled to the maintenance tray to allow the maintenance tray to be vertically displaced with respect to the effluent tray;
• and
• a controller configured to:
• operate the movement mechanism to laterally position the ejection face with respect to the maintenance tray for maintenance procedures;
• operate the motorized shaft to vertically position the maintenance tray with respect to the effluent tray during the maintenance procedures;
• and
• operate the fluid supply to push fluid through the printhead to effect a printhead purge during some of the maintenance procedures.