An air cleaner includes at least one more installation hole provided in a resin frame of an adsorbent sheet than there are pins and engaging hooks respectively provided in an upper housing. To the first and second storage nodes, capacitors are connected, respectively. The process does not require the addition of hydrogen. Oxygen plasma or water vapor plasma can then be provided to the upper electrode and the phase changeable pattern. 5 mol % of propene are converted in a single pass through part-bed A. An image forming apparatus comprises an ink-jet head for conducting recording on a recording medium, a laminating section for laminating a thermoplastic polymer onto a recorded recording medium, and a heating and pressurizing device for heating and pressurizing the thermoplastic film to smooth the surface and to bond the back side of the thermoplastic film onto the image-receiving layer.