Abstract: A cleaning pad for a mobile cleaning robot can include a backing layer, a cleaning layer, and a card. The backing layer can be user-releasably securable to a pad tray of the mobile cleaning robot. The cleaning layer can be affixed to the backing layer and engageable with a floor surface. The card can be connected to at least one of the backing layer and the cleaning layer and can be engaged with the backing layer. The card can be slidably insertable into a retainer of the pad tray to align the cleaning pad with the pad tray of the mobile cleaning robot.

Abstract: A mobile cleaning robot can be movable about a flooring surface of an environment and can include a body, a pad tray, a cleaning pad, and a pad drive system. The body can at least partially define a reservoir configured to store liquid therein. The pad tray can be connected to the body and can be movable with respect to the body between a stored position and a deployed position. The valve can be connected to the body and can be movable between a closed position where liquid flow is limited and an open position where liquid flow to the cleaning pad is permitted. The drive system can be movable such that the pad tray or the cleaning pad can engage the valve to move the valve to the open position when the drive system moves the pad tray and the cleaning pad to the deployed position.

Abstract: A cleaning pad for a mobile cleaning robot can include a backing layer, a cleaning layer, and a card. The backing layer can be user-releasably securable to a pad tray of the mobile cleaning robot. The cleaning layer can be affixed to the backing layer and engageable with a floor surface. The card can be connected to at least one of the backing layer and the cleaning layer and can be engaged with the backing layer. The card can be slidably insertable into a retainer of the pad tray to align the cleaning pad with the pad tray of the mobile cleaning robot.