Abstract: An image processing apparatus includes a processor configured to impose a group of pages on a single sheet as a target for reprinting and perform reprinting, the group of pages being referred to as printing-error pages, each of the pages having been printed with a printing error that occurred while multiple pages imposed on one or more sheets were printed.

Abstract: An information processing system includes one or more processors configured to: acquire past printing request information on a printing request received in a past, record information on a record of printing performed by a printer based on the past printing request information, and new printing request information on a newly received printing request; and present a candidate for paper to be used for printing related to the new printing request information based on the past printing request information, information included in the record information and related to paper used for the printing, and an attribute of paper to be used as a print medium. The attribute of paper is identified from the new printing request information.

Abstract: A compound of the following structure has excellent luminescence characteristics. One of X1 and X2 is N and the other is B, and R1 to R26, A1, and A2 are H or substituents.