Abstract: Although a variety of pest control agents have been used for many years, many of these pest control agents have various problems, such as insufficient effectiveness, and restriction on use thereof due to resistance acquired by pests, and the like. Therefore, it is desired to develop a novel pest control agent that is less likely to have such drawbacks. One of objects of the present invention is to provide a highly active compound or a salt thereof against a pest. The present invention relates to an N-(4-pyridyl)nicotinamide compound represented by the following formula (I) (in the formula (I), for each substituent, see Description) or a salt thereof.

Abstract: A sheet feeder for an image forming apparatus having a sheet feed unit which incorporates a pair of feed rollers for feeding paper sheets one by one out of at least one sheet cassette toward an image transfer station by nipping them. The sheet feed unit is automatically moved by a guide to a position where the feed rollers align with the intermediate between opposite widthwise edges of the paper sheets.

Abstract: A document recycling copier having, in a system configuration, a copier body, a recycling document handler which may be loaded with a stack of documents of different sizes, and a finisher for automatically arranging and binding a series of copied paper sheets. The copier is capable of copying the individual documents of different sizes on paper sheets the sizes of which are individually associated with the documents, or copying all of the documents of different sizes on paper sheets of the same size, as desired.

Abstract: A copier having an automatic document feeder and selectively operable in a sheet-through mode and a sheet-stationary mode. The sheet-through mode is automatically selected when only one copy is desired for each of documents while the sheet-stationary mode is automatically selected when two or more copies are desired for each of documents.