Disclosed are apparatuses, systems, and methods for programmable fluidic processors. A processing unit performs a vector conversion on the character image by the vector conversion method determined by the determining unit. The liquid material is adapted to be ejected through the plurality of nozzles of the plurality of droplet ejection heads in the form of droplets. Then, the predetermined threshold for the brightness variation used to extract the edge points is changed based on the number of the generated candidates for the lane-dividing line. The student must attach these hooks to the seat frame then sit down and close the buckle assembly.