A process for producing a carotenoid emulsion which comprises heating a suspension of the carotenoid in a high boiling organic liquid, by passing the suspension through a conduit of 0. The document holding cover includes a groove formed in the document holding cover and a stopper member fitted therein. In some cases, the resection block is configured to be seated on a distal portion of a femur. A scanning unit scans the document in the selected mode. The switching control unit switches the transferring destination of data to the second device in the transfer unit when the judgment unit judges that processing of the data is completed.