An electronic apparatus with enhanced natural convection structure. Accordingly, a difference of a signal delay between the adjacent two odd and even data or gate lines is prevented. Another approach relates to validating the focusing optic. In cooperation with the cutting, a trailing end of the individual filmstrip in the first direction is moved in a direction which is reverse to the first direction to secure the trailing end to the spool. The cartridge is very sensitive to pressure changes, which enhances printing quality. Indicators, such as counters, may determine the configuration of node interfaces.