Canon Kabushiki Kaisha

Shunpei Kimura

Tsutomu Shiratori

Yasuhiro Ono

Yasuyuki Miyaoka

Koyo Hasegawa

Takaaki Ashinuma

Mitsuhiro Otokawa

Akira Miyashita

A printing apparatus includes an ink ribbon on which a plurality of color inks are arranged frame-sequentially, a printing unit configured to be able to print by a predetermined length by transferring the plurality of color inks onto roll paper by one cycle of the ink ribbon, and a print control unit configured to control the printing apparatus to successively print two calendar sheets in case that the printing apparatus is instructed to print a calendar sheet having a length larger than the predetermined length. The calendar sheet includes an image area corresponding to the predetermined length and a date area having a length not larger than substantially 0.5 times of the predetermined length. The print control unit controls the printing apparatus to rotate, through 180&#xb0;, one of the two calendar sheets to be successively printed, and print.

Printing apparatus and control method thereof

There is provided an image processing apparatus which can effectively use a memory provided in an image pickup apparatus such as a digital camera or a digital video camera, without causing a shortage of the working memory capacity during image processing of print data, to realize a printing system that has minimized costs and is very flexible. Image data stored in a recording medium is input to the image processing apparatus. An image data format for conversion of the image data is selected according to a size in which the input image data is to be printed out and the input image data is processed in the selected image data format.

Image processing apparatus, printing system, image data format selecting method, program and storage medium

Recording of information is performed by selectively forming a high-temperature level state and a low-temperature level state on a recording medium which is capable of an optical modulation overwrite operation to multi-value power levels on the basis of a multi-pulse recording waveform. A power level PHth of the light beam immediately before the high-temperature level state begins to be formed on the medium is detected and a minimum power level PLmin of the light beam, which can form the low-temperature level state on the medium, is detected. Then, the multi-pulse recording waveform is switched on the basis of the detected power levels PHth and PLmin. Upon recording of a non-overwrite recording medium, a power level Pth of the light beam immediately before recording begins on the medium is detected and a maximum reproduction power level Prmax of the light beam at which information recorded on the medium is not erased is detected. Then, the multi-value recording waveform is switched on the basis of the detected power levels Pth and Prmax.

Optical information recording/reproducing apparatus and method capable

A write test method for use in a recording process for recording information is effected by such that the power of a laser light is modulated to form a high-temperature state and a low-temperature state on a recording medium. First, a predetermined signal is recorded on the recording medium while varying the power level of the laser light. The information recorded on the recording medium is reproduced to detect the power level of the laser light, immediately before formation of the high-temperature state, based on the amplitude of a reproduced signal. The power levels of the laser light for forming the low-temperature state and for forming the high-temperature state are determined on the basis of the detected power level.

Write test method for use in recording process for recording information

There is disclosed a magnetic field generating device for use in a magnetooptical recording apparatus of a magnetic field modulation method. The device includes a planar spiral coil, of which coil pitch is smaller in the peripheral area than that in the central area thereof, thus realizing a relatively wide area of magnetic field of uniform intensity, with a low inductance. Because of the planar structure, the device can be positioned very close to the recording medium, and can achieve the high speed switching required in the magnetic field modulation method, without a large power source.

Magnetic field generating device

An apparatus for recording an input signal on a magneto-optical recording medium. The apparatus includes an optical head for applying a light beam to the medium, a circuit for delaying the input signal by a time for preventing a bit recorded on the medium from shifting relative to the input signal, a magnetic head for applying a magnetic field modulated in conformity with the delayed signal to that portion of the medium to which the light beam is applied, and a motor for moving the medium relative to the light beam.

Growing community of inventors

Yokohama, Japan

Shunpei Kimura