Abstract: A fastening device includes first to third rotary sensors (position detecting unit) which are provided in a support arm and detect a position of a nut runner (fastening tool), and a main controller (controlling unit) which has a storage unit for storing a plurality of fastening positions of a chain cover, and drives the nut runner when a detection result from the first to third rotary sensors coincides with position information of the fastening position of the chain cover stored by the storage unit. Therefore, during a fastening work, an operator does not need to pull a trigger to drive and rotate the nut runner, thus reducing a burden on the operator during the fastening work.

Abstract: A network connects first, second, and third apparatuses. The first apparatus generates a first list of contents represented by data stored therein. The second apparatus generates a second list of contents represented by data stored therein. The first apparatus gets the second list of contents from the second apparatus, and combines the first list of contents and the second list of contents into a third list of contents. The second apparatus gets the first list of contents from the first apparatus, and combines the first list of contents and the second list of contents into a fourth list of contents which is equal to the third list of contents. The third apparatus refers to one of (1) the third list of contents which is generated by the first apparatus and (2) the fourth list of contents which is generated by the second apparatus.

Abstract: A thermal printing apparatus for printing input gradational images, characters and figures by using multilevel density which can appropriately regulate the levels of the densities representing the gradational images etc.

Abstract: A heat-sensitive hot-melt image transfer sheet transfers an ink image to a recording sheet when selectively heated by the heating element of the thermal head of a thermal printer. The image transfer sheet comprises a base coated on a surface thereof with a matrix of circular hot-melt ink dots at a constant pitch. The hot-melt ink dots are selectively meltable with heat applied through the base by the heating elements for transferring an ink image to the recording sheet held against the matrix of hot-melt ink dots.

Abstract: A thermal printing apparatus prints input gradational images, characters and figures by using multilevel density regulates the levels of the densities representing the gradiational images etc. to be printed by a linear thermal head having n heating resistors arranged in a row.

Abstract: A thermal printer comprises a thermal head and a printing data output circuit outputting printing data. A portion of the printing data is copied. The copied portion of the printing data is added to a head of the printing data to form a combination of the copied portion and the printing data. The data combination is outputted to the thermal head. The thermal head is driven with the copied portion to preheat the thermal head. Then, the thermal head is driven with the printing data to perform actual printing.