Canon Kabushiki Kaisha (Total 4969 Patents Found)

A magnetic toner for electrophotography having stable triboelectric chargeability under various environmental conditions may be provided by using magnetic iron oxide particles having a moderately high surface FeO content, specified by the following conditions: (a) a dissolved Fe (II) content in dissolved total iron of ...
A scanning optical apparatus comprises a light source unit scanning means for deflecting a beam from said light source unit and scanning a scanning surface with the beam, means for detecting the beam scanned on said scanning surface and control maens for controlling the beam scanned on said scanning surface in a direct...
In an image processing apparatus, a plurality of substantially corresponding points are designated on a reference image and a peripheral image. The degree of coincidence is detected between a window in the peripheral image with a corresponding point as the center, and windows successively cut from the reference image, ...
An image fixing apparatus (11) includes a heater (12) for producing heat upon electric power supply thereto; a film (16) movable in sliding contact with the heater (12), wherein an unfixed toner image on a recording material (9) is fixed by heat from the heater (12) through the film (16); a temperature detecting elemen...
A processor generates signals having an exact phase difference of 90 degrees and signal having an exact phase difference of 180 degrees, from two sine wave signals having different phases produced by a detector such as an encoder, and effects signal insertion base on those signals....
The present invention provides an image forming apparatus comprising, an image bearing member (1); an image forming means (I) for forming an image on the image bearing member (1); a transfer sheet bearing means (2) for bearing and conveying a transfer sheet (S), to which a first voltage is applied for transferring the ...
An ink jet cartridge comprises an ink jet head unit (100) for discharging the ink, and an ink tank unit (200) having an ink supply port (209) for supplying the ink to the ink jet head unit. The ink tank unit has a partition portion (215) for partitioning between an ink storing portion (204) for storing the ink to be su...
A method of recording information to a recording medium by using an information processing system comprising an information recording apparatus to record information to the recording medium, a controller to control said information recording apparatus, and a host computer which is connected to said controller through a...
An electric power accumulating apparatus utilizing a prallel and/or serial array of plural secondary batteries comprises means for detecting abnormality in each of the secondary batteries, means for electrically detaching the output terminals of the secondary battery showing abnormality and, in case of serial connectio...
In a method and apparatus for processing data, the data processing side for performing main control and the print control side including power saving control are provided, wherein the print control side performs transition of a plurality of power saving states to obtain an optimal power saving state on the basis of tra...
Capping means (41) adapted to be used for an ink jet recording apparatus for performing recording on a recording medium (1) by discharging ink onto the recording medium (1) comprises a capping member (41) for covering a discharge port of an ink jet recording head (38) for discharging ink to effect the recording on the ...
In a magnetooptical recording apparatus, a light beam is radiated onto a magnetooptical recording medium while applying a bias magnetic field to the recording medium in such a manner that at least one of the light beam and the bias magnetic field is modulated according to an information signal. A current to be supplied...
A signal processing apparatus for performing maximum likelihood decoding using one of a partial response PR(1,1) scheme and a partial response PR(1,0,1) scheme, has a maximum likelihood decoding device which includes    a comparison circuit for comparing a branch metric difference supplied from an external circu...
An information processing apparatus capable of connecting a plurality of types of printers including an ink-jet printer, includes a connection unit for electrically connecting a printer, a discrimination unit for discriminating a type of printer connected to the connection unit, a selection unit for, when the discrimin...