Abstract: An air discharge unit (100) for underfloor air conditioning employs a centripetal fan (2) to realize low pressure loss, low noise and energy saving while reducing the heightwise thickness of the whole unit. The centripetal fan (2) is installed in an underfloor chamber (104) formed between a floor panel (103) and a floor slab to face an outlet (1) provided in the floor panel 103, and is driven by a motor (4). The centripetal fan (2) has a hub (200) and a plurality of blades (20) formed on an outer surface of the hub (200), and sucks therein an air in the underfloor chamber (104) from radially outward direction to make the air spirally flow toward the outlet (1) generally in an axial direction.

Abstract: Data processing method and apparatus for converting data such as character data or image data of a resolution X into data of a resolution Y which are effective for use in, particularly, a recording apparatus such as an ink jet printer or the like.

Abstract: Data is converted by a prediction function. The converted data is run length compressed and the resultant compressed font data is stored into an ROM. When outputting, the compressive data is sent to a run length expander. The run length expander produces bits of fonts and sequentially stores the produced bits in a RAM. The stored data is sent to a reverse prediction function processor and a font pattern is formed.

Abstract: A serial printer for recording with a recording head while synchronizing with a movement of a carriage reciprocated on an apparatus body and on which the recording head is mounted. A position of a linear encoder is detected by a detecting portion. A detecting signal from this detecting portion is compared with a reference voltage, and a pulse output as a synchronous signal is generated. A duty of this pulse output is adjusted to obtain a well-recorded result.