A pan including a shelf dividing the interior thereof into a lower chilling element and an upper portion disposed in heat relationship with the lower portion and a lid for covering the top of the container and having a serving surface for display of food thereon. The bonding apparatus includes a heel shaper, which is provided for avoiding damage to the bonding wire in the heel region during the bonding operation. Consequently, inter-band data correction process based on the thinning can be executed depending on the type of the print medium and the number of printing passes, thereby achieving an appropriate thinning depending on the type of the print medium or the like. A stack of materials with different refractive indices is deposited on the back facet of the laser diode to achieve a change in optical mirror losses over longer wavelengths.