摘要:
An image forming device suitable for use in a laser beam printer includes an image forming unit for forming an image on a photoconductor, and a reproduction unit for reproducing a high density image and a halftone image on the photoconductor. A detector then detects the density of the high density image and the halftone image formed on the photoconductor. A controller controls an image forming condition of the image forming unit based on a detection result by the detector.
摘要:
An image reading and recording apparatus includes a reader for reading an image of a document and by scanning a document; a recorder for effecting recording of the image read by the reader on a recording medium by scanning one side of the recording medium. A driving and controlling device drives and controls the reader and the recorder in such a manner that the image recorded on one side of the recording medium by means of the recorder will be inverted with respect to the image of the document.
摘要:
A multivalued input recording signal is subjected to pulse-width modulation at a time unit shorter than the period of a clock signal within the period of the recording signal. Alternatively, the multivalued input recording signal is converted into a plurality of different signals each of whose length of time is shorter than a clock signal within the period of the recording signal, thereby performing pulse-width modulation in accordance with a predetermined weighting. This makes it possible to obtain a highly toned recording signal without raising the frequency of the clock signal. Further, density tone data is generated in dependence upon inputted multivalued pixel data, and control is performed using both the irradiation time and emission intensity of a light beam based on the generated density tone data. An image is formed by irradiating a photosensitive body with the controlled light beam.
摘要:
An image forming apparatus includes an image bearing member; a charging member for charging the image bearing member; an image forming device for forming an image on the image bearing member; and an impedance circuit between the charging member and a voltage source for supplying electric power to the charging member, the impedance circuit having an impedance which is peculiar to individual image forming apparatus in accordance with an impedance of the charging member.
摘要:
An image forming apparatus suitable for use in a laser beam printer includes an image forming unit for forming an image on a photoconductor, and a reproduction unit for reproducing a high density image and a halftone image on the photoconductor. A detector then detects the density of the high density image and the halftone image formed on the photoconductor. A controller controls an image forming condition of the image forming unit based on a detection result by the detector.
摘要:
A color image recording apparatus such as an ink jet printer forms color image by depositing a plurality of colored inks on a recording medium in a predetermined order. The apparatus includes a device, such as an image reader or a memory, for inputting a plurality of first color component signals that correspond to the plurality of colored inks. The first color component signals are color masked to generate second color component signals to be used for recording, at least one of the second color component signals being corrected in accordance with the predetermined order of recording.
摘要:
A color image processing method comprising the steps of extracting a particular color signal of three color image signal components from an input color image signal; converting the particular color to another designated color; designating the particular color and the designated color; and forming a color image on the basis of the converted color image signal.
摘要:
An information recording apparatus includes a temperature detector for detecting the temperature of a semiconductor laser and a condition setter for generating a signal corresponding to a laser beam wavelength at a predetermined temperature. The apparatus further includes a control system for controlling a laser output of the semiconductor laser in response to the temperature detection signal from the temperature detector and the condition signal set by the condition setter.
摘要:
An image recording apparatus. A disposable part is detachably mounted therein. The apparatus includes a photosensitive member which is imagewisely exposed to a dots of beam in accordance with the signal of the image to be recorded. A counter counts clockpulses during the time when the signal of the image to be recorded being produced. Utilizing the output of the counter, the signal corresponding to the degree of consumption of the disposable or consumable part is generated.
摘要:
An image information recording apparatus wherein a photosensitive member is scanned with a laser beam corresponding to the information signal of an image to be recorded, the power of the laser beam being controlled in accordance with the wavelength of the laser beam and the sensitivity of the photosensitive member.