A liquid ejection apparatus includes a liquid ejection head having a plurality of nozzle units, a plurality of capping devices, a movement mechanism, a plurality of suctioning tubes, a suctioning mechanism, a connection device, and a control device. The methods utilize hard magnetic carrier particles that are modified to have specific levels of resistivity, such as, for example, of from about 1105 ohm-cm to about 11010 ohm-cm, and a carrier charge-to-mass of greater than about 1. The display may further include a bottom chassis comprising a bottom plate and a plurality of second side walls, wherein the bottom plate is configured to support the mold frame and wherein the second side walls are formed at edges of the bottom plate. To achieve sufficient collapsibility, the vehicle includes a seat assembly constructed from various pivoting members, whereby, during use, riders are seated above the motor, but during periods of non-use, the seat assembly folds down to fit into a space in front of the engine, with a height no greater than the engine and fuel tank. A spring may also be provided for propelling the shield into the second position. The systems and methods may utilize an improved technique for applying a monolayer of cells to a slide to generate a substantially uniform distribution of cells on the slide.