Provided is a substrate cleaning apparatus including: a substrate holding and rotating mechanism configured to hold and rotate a substrate; a cleaning liquid supplier configured to supply a cleaning liquid to the substrate; a cleaning member configured to come into contact with the substrate to clean the substrate; a charge amount adjustment apparatus capable of increasing and decreasing a charge amount of the substrate; a charge amount measuring instrument configured to measure the charge amount of the substrate; and a controller configured to control the charge amount adjustment apparatus according to the charge amount measured by the charge amount measuring instrument.

Provided is a substrate cleaning apparatus including: a substrate holding and rotating mechanism configured to hold and rotate a substrate; a cleaning liquid supplier configured to supply a cleaning liquid to the substrate; a cleaning member configured to come into contact with the substrate to clean the substrate; a charge amount adjustment apparatus capable of increasing and decreasing a charge amount of the substrate; a charge amount measuring instrument configured to measure the charge amount of the substrate; and a controller configured to control the charge amount adjustment apparatus according to the charge amount measured by the charge amount measuring instrument.

A cleaning module device for fully automated cleaning of a storage rack, such as crossbars used for storing storage goods, has outer dimensions sized to that of a loading aid stored in the storage rack so that the device can be handled by a load handler of a storage transporter, such as a telescopic arm of a single-level rack serving apparatus configured as a shuttle. A system and an arrangement incorporate a cleaning module device and a method for cleaning a storage rack, such as crossbars used for storing storage goods is also provided.

A substrate cleaning apparatus according to the present invention comprises a cleaning member that contacts with a substrate to clean the substrate; and a supply mechanism that provides an organic solvent for dissolution to the substrate after the substrate is cleaned by the cleaning member. The organic solvent for dissolution can dissolve a foreign substance generation factor caused by the cleaning member.

A substrate cleaning apparatus according to the present invention comprises a cleaning member that contacts with a substrate to clean the substrate; and a supply mechanism that provides an organic solvent for dissolution to the substrate after the substrate is cleaned by the cleaning member. The organic solvent for dissolution can dissolve a foreign substance generation factor caused by the cleaning member.

An optical connector cleaning tool includes a supplier that supplies a cleaning element having a belt shape, a cleaning shaft including a head having a pressing surface that presses the cleaning element supplied from the supplier against a connection end surface of an optical connector and a supporter supporting the head part, a collector that collects the cleaning element from the pressing surface, and a tubular member having an inner hole accommodating the cleaning shaft such that the head protrudes from the inner hole. The cleaning element collected from the pressing surface to the collector passes between an inner surface of the inner hole and a first facing portion of the head facing the inner surface. The first facing portion includes a first region in which the cleaning element is interposed between the inner surface and the first facing portion and a second region adjacent to the first region.

An optical connector cleaning tool includes a supplier that supplies a cleaning element having a belt shape, a cleaning shaft including a head having a pressing surface that presses the cleaning element supplied from the supplier against a connection end surface of an optical connector and a supporter supporting the head part, a collector that collects the cleaning element from the pressing surface, and a tubular member having an inner hole accommodating the cleaning shaft such that the head protrudes from the inner hole. The cleaning element collected from the pressing surface to the collector passes between an inner surface of the inner hole and a first facing portion of the head facing the inner surface. The first facing portion includes a first region in which the cleaning element is interposed between the inner surface and the first facing portion and a second region adjacent to the first region.

A cleaning system, a cleaning device and a control method therefor, are associated with a floor brush assembly that includes a roller brush housing, a roller brush, a roller brush cover. The roller brush cover and the floor brush housing enclose a roller brush cavity for fitting with the roller brush. The roller brush cover is configured to be operable in a first or second position relative to the floor brush housing. In the first position, there is a first contact area between the roller brush cover and the roller brush. In the second position, there is a second contact area between the roller brush cover and the roller brush. The first contact area is greater than or equal to zero, but less than the second contact area. The inner wall of the roller brush cover can be cleaned by the roller brush.

A cleaning system, a cleaning device and a control method therefor, are associated with a floor brush assembly that includes a roller brush housing, a roller brush, a roller brush cover. The roller brush cover and the floor brush housing enclose a roller brush cavity for fitting with the roller brush. The roller brush cover is configured to be operable in a first or second position relative to the floor brush housing. In the first position, there is a first contact area between the roller brush cover and the roller brush. In the second position, there is a second contact area between the roller brush cover and the roller brush. The first contact area is greater than or equal to zero, but less than the second contact area. The inner wall of the roller brush cover can be cleaned by the roller brush.

A solar cell panel cleaning system according to an embodiment of the present invention includes a cleaning unit body configured to remove foreign substances attached to the solar cell panel, a driving force-providing unit configured to move the cleaning unit body, and a controller including a contamination region calculation unit configured to sense a contaminated region of the solar cell panel, and a wireless communication module configured to provide information on the contaminated region to the driving force-providing unit and the cleaning unit body.