摘要:
There is disclosed an apparatus for obtaining image signal by tonal processing of an input signal. Pulse-width modulation of the input signal is achieved thorugh comparison with a second signal of a predetermined shaped, for example a triangular signal. In order to avoid the influence of fluctuating factors in pulse-width modulation, the apparatus also has a third signal generator, and the pulse-width modulated signal or a pattern signal generated by the third signal generator is selectively used for image formation.
摘要:
An image recording apparatus for recording an image in accordance with input image data supplied thereto using a recording head having a plurality of recording elements arranged thereon. The apparatus includes a sensor for detecting and determining non-uniformity of the densities of the records provided by the respective recording elements, at predetermined timing in image recording operations, and adjusting means for adjusting driving signals applied to the respective recording heads in response to an output of sensor.
摘要:
An ink jet recording apparatus performing recording by discharging ink from a recording head onto a recording medium. A conveying belt for conveys the recording medium by the attraction of static electricity, an electrode contacts the recording medium conveyed by the conveying belt, and a power source charges the electrode with a charge having a polarity opposite to a charge carried by the conveying belt. The recording head includes a discharge port and a control electrode formed around the discharge port. A voltage identical to the polarity of the surface potential of the recording medium is generated by a power source and applied to the control electrode to cause the control electrode to repel any satellite droplet of the polarity identical to the voltage that splits from a discharged ink droplet during the flight thereof.
摘要:
A recording apparatus includes an ink jet recording head having plural ejection outlets and thermal energy generating elements provided for the respective ejection outlets; a limiter for defining a using range of the heat generating elements in accordance with image forming conditions, a recording head driver for supplying to the heat generating elements outside the using range defined by the limiter driving signals insufficient to eject the ink and for supplying to the heat generating elements in the using range defined by the limiter a driving signal sufficient to eject the ink in accordance with an image signal.
摘要:
An ink jet recording apparatus wherein an image is formed on a recording material by ejection of coloring agents having different colors from plural recording heads, the apparatus includes a discriminator for discriminating whether an image having a edge and an image having high image density are to be overlaid or not; and a controller, responsive to the discriminator, for reducing the quantity of the coloring agent for the high density image at a position corresponding to at least one of the edge image and a periphery of the edge image .
摘要:
Pharmaceutical compositions for treating gout or hyperuricemia and containing a new categorized compound, i.e. 2-arylthiazole derivatives, as an active ingredient, are provided. The 2-arylthiazole derivatives in the present invention are represented by the following formula (I): ##STR1## wherein Ar is an unsubstituted or substituted pyridyl, thienyl, furyl, naphthyl or phenyl group;X is a hydrogen atom, alkyl group or carboxyl group which may be protected, andY is a hydrogen atom, alkyl group, or a hydroxyl or carbonyl group which may be protected.Furthermore, novel compounds included in the 2-arylthiazole derivatives and pharmaceutically acceptable salts thereof are provided.
摘要:
This invention relates an image forming apparatus capable of automatically adjusting image formation conditions. A transfer medium having a detecting pattern image formed by an apparatus main body is read by an original reading unit. A look-up table for setting latent image formation conditions is corrected on the basis of a read output, thereby correcting image densities in a main-scan direction and/or a sub-scan direction.
摘要:
According to the present invention, an image forming apparatus comprises an image forming unit for producing an image on paper, a detector for detecting a plurality of parameters indicating a state of the image forming unit, a corrector for correcting the state of the image forming unit, a rule memory for storing rules for determining the relation between the parameters and the timing of operation of the corrector, and a control for controlling the corrector according to the parameters the detector detects and the rules stored in the memory. Therefore, even a simple configuration permits high-precision control. This reduces a time loss due to the correcting operation, minimizes consumption of development agent, and thus ensures constant gradation all the time.
摘要:
An ink jet recording apparatus wherein an image is formed on a recording material by ejection of coloring agents having different colors from plural recording heads. The apparatus includes a discriminator for discriminating whether an image having a edge and an image having high image density are to be overlaid or not; and a controller, responsive to the discriminator, for exchanging a primary coloring agent with a secondary coloring agent at a position corresponding to at least one of the edge image and a periphery of the edge image.
摘要:
An image forming apparatus for forming an image on a recording material comprising: a plurality of processing devices for forming the image; a detecter for detecting at least a quantity of state relating to a control of the processing devices; an inference computer for inferring, in accordance with the quantity of state, a quantity of control for use to control the processing devices.