Apparatus for collecting waste material in a large-scale ink-jet printer

An apparatus useful in printing, comprising:

• a rack, the rack including a first tray and a second tray disposed above the first tray, the first tray and second tray each being suitable for collecting waste material from a printhead, the first tray and second tray each including a selectably-openable drain valve for draining waste material therefrom;
• a mounting bracket, the rack being slidably mounted on the mounting bracket;
• a linkage associated with the drain valve of the first tray and the drain valve of the second tray, the linkage being slidably mounted on the rack;
• the rack being selectably positionable on the mounting bracket in a drain position, whereby, in the drain position, the linkage is pushed against a surface within the apparatus and the pushing causes the linkage to open the drain valve of the first tray and the drain valve of the second tray;
• wherein the drain valve of the second tray is configured to drain waste material from the second tray to the first tray, and the drain valve of the first tray is configured to drain waste material from the first tray to a collection bottle.