Sharp Kabushiki Kaisha Corporation

Masaaki Ozaki

Hiroshi Ishii

Masayoshi Tsunezawa

Masaya Nagata

Kaoru Higuchi

Tetuyuki Ueda

Akira Yoshida

Toshiaki Kagawa

Hirotsugu Matoba

Hiroyuki Sawai

Osamu Takahashi

Keiichiroh Watanabe

An ozone generator generates ozone gas; a gas-liquid mixer mixes the ozone gas and a liquid; a liquid storage tank separates an introduced gas-liquid mixture into gas and a liquid; a circulation path circulates gas among the ozone generator, the gas-liquid mixer and the liquid storage tank; and an opening and closing control means controls a flow of gas flowing out through a gas outlet port of the liquid storage tank in accordance with a stored liquid amount in the liquid storage tank. As a result, the stored liquid amount of the liquid stored in the liquid storage tank can be adjusted.

Ozone liquid generator and method of generating ozone liquid

An image recording apparatus includes a discharge head and a discharge control device. The discharge head includes an ink chamber with a discharge hole, a first heater for heating and gasifying ink, a shutter unit, provided at the discharge hole portion, controlled to discharge gasified ink intermittently according to an electrical signal corresponding to image data to be recorded, and a first member for maintaining the temperature of the discharge hole sufficiently lower than the temperature of the first heater in operation of the first heater before initiation and after completion of image data recording. The discharge control device controls the shutter unit.

Image recording apparatus gasifying and discharging ink for forming

A second heating device heats an inner wall of an ink chamber of a print head to a temperature not lower than the melting point but not higher than evaporating temperature of ink 3, for a prescribed time period after the end of printing, based on a signal from a second heating control device. Consequently, the ink solidified and deposited on the inner wall of ink chamber and not used for printing is liquefied and recovered to the ink chamber to be used for the next printing.

Method and apparatus for image recording by emitting evaporated ink onto

An image printing apparatus for forming an image on a printing medium includes: a printing head including two ink chambers and a shutter; a heater provided under the two ink chambers; a charging electrode provided between the printing medium and the two ink chambers; a back electrode provided on a side of the printing medium which is opposite a side on which the image is formed; a controller associated with the shutter, the heater and the charging electrode.

Image printing apparatus

A linear motor is capable of reducing cogging which may be present in the motor. Cogging is an obstruction in realizing constant speed control or high accuracy of position control. The reduction of cogging is accomplished, for example, by pole location or specific detailed shapping of pole iron plates.

Linear motor with reduced cogging

In a linear motor comprises one or more moving units provided to move linearly on a base frame, one or more magnetic field forming members to opposed each of the moving units, and moving means provided on said magnetic forming members for moving the magnetic forming members on the base frame by reaction force occurring when the moving units are driven, whereby vibration acting on the base frame at the time of moving of the linear motor can be cancelled by the motion of the magnetic field forming members.

Linear driving apparatus

A linear driving apparatus is provided wherein the driving output of a linear driving apparatus is adapted to be properly varied in the constant speed condition and the high acceleration condition for a moving object. Thereby the closer controlling operation may be effected not only in the high acceleration condition, but also in the constant speed condition if there is a considerable difference on the driving output of the linear driving apparatus in the constant speed condition and the high speed condition.

The invention concerns a phase locked loop speed control circuit for controlling the speeds of two or more objects. It includes pulse generators for generating reference pulses, first counters for counting each of these reference pulses, encoders for detecting relative travelling distances of the objects, second counters for counting encoder pulses from the encoders, first subtracters for subtracting the outputs of the second counters from those of the first counters, second subtractors for subtracting the encoder pulses from the reference pulses, corrector sections for correcting the differences output by the first and the second subtractors, and adjusting sections for adjusting the movements of the objects based on the corrected differences.

Phase locked loop speed control circuit for controlling speeds and

A linear motor is capable of reducing cogging which may be present in the motor. Cogging is an obstruction in realizing constant speed control or high accuracy of position control. The reduction of cogging is accomplished for example by pole location or specific detailed shaping of pole iron plates.

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Nara, Japan

Masaaki Ozaki