A method for laminating a functional film on to an optical base element and a tri-layer adhesive system for use in the method. Thus the receptacle may be easily removed from the attachment part of the blower-vacuum device merely by sliding the band of the receptacle out of the groove, whereupon the receptacle may then be emptied of garden waste by tipping it upside-down. The compressed air thus generated in the turbocharger is shared and distributed for combusting the internal combustion engine and for driving the air engine. Therefore, the polarization insensitive semiconductor optical amplifier is capable of separately controlling TE and TM polarization gains so as to approximately equalize the TE polarization gain to the TM polarization gain. When the printer returns on-line, a control unit causes a data receiving unit to stop discarding said received data and causes sending a clear response as an on-line status report telling the host computer that the printer is returning on-line.