An object of the present invention is to reduce the number of necessary terminals on a substrate, realize data transmission resistant to disturbance noise even when a source voltage of a logic system for processing a digital video signal is lowered, reduce an influence of a radiated noise, and provide an output image of high picture quality. 1R1 is H, methyl or CH2CO2R3, R2 is H, methyl or CO2R3, R3 is C1-C15 alkyl, Z is a divalent C2-C20 hydrocarbon group which forms a single ring or bridged ring with the carbon atom and which may contain a hetero atom, m is 0 or 1, n is 0, 1, 2 or 3, and 2mn2 or 3. By combining the elastic components, the rollers and the flexible printed circuit board, the flexible printed circuit board can revert to an original position after the flexible printed circuit board is used. Waste toner is delivered through the collection path to the developing chamber. The latches include pawls that fit within pawl receiving chambers in the socket and couple the plug to the socket. The results of the query are written to an RFID IC register.