Abstract: An image forming apparatus that includes an image forming component, a flash fixing component and a control component is provided. The image forming component forms toner images using at least two toners respectively having different colors and transfers the formed toner images onto a recording medium. The flash fixing component emits a flash light onto the recording medium onto which the toner images have been transferred by the image forming component and fixes the toner images. The control component that controls the image forming component to form the toner images so that, among the toner images, a second color toner is adhered to a surface of a toner layer formed by a first toner color at a region at which the toner layer formed by the first toner color is formed, the absorbance of the second color toner being lower than that of the first color toner.

Abstract: The fixing apparatus used in an image forming apparatus and fixing an image on a recording medium, the fixing apparatus is provided with: a flash lamp that emits flash light for fixing the image; and a reflection member that has a reflection surface reflecting the flash light emitted from the flash lamp to the recording medium. A shape of the reflection surface is configured so as to be deformable.

Abstract: A flash fixing device comprises a first and second flash lamps that emit flashes of light that fix a toner image transferred onto a recording medium and a light emission control unit that controls the light emissions of the first and second flash lamps so that the light flashes emitted from the first flash lamp and the second flash lamp are each irradiated at different timing on each portion on the recording medium.

Abstract: An image forming apparatus that includes an image forming component, a flash fixing component and a control component is provided. The image forming component forms toner images using at least two toners respectively having different colors and transfers the formed toner images onto a recording medium. The flash fixing component emits a flash light onto the recording medium onto which the toner images have been transferred by the image forming component and fixes the toner images. The control component that controls the image forming component to form the toner images so that, among the toner images, a second color toner is adhered to a surface of a toner layer formed by a first toner color at a region at which the toner layer formed by the first toner color is formed, the absorbance of the second color toner being lower than that of the first color toner.

Abstract: The fixing apparatus used in an image forming apparatus and fixing an image on a recording medium, the fixing apparatus is provided with: a flash lamp that emits flash light for fixing the image; and a reflection member that has a reflection surface reflecting the flash light emitted from the flash lamp to the recording medium. A shape of the reflection surface is configured so as to be deformable.

Abstract: A flash fixing device is disclosed. The flash fixing device has a group of main flash lamps which emit main flash light for fixing a toner image on a recording medium; an auxiliary flash lamp provided at a position corresponding to between a pair of flash lamps of the group of main flash lamps; and a light-emission control unit controlling light-emission of the group of main flash lamps and light-emission of the auxiliary flash lamp by using a predetermined relationship. Also disclosed is an image forming device having the flash fixing device.

Abstract: A flash fixing apparatus including a plurality of lamp groups each comprising at least one lamp, and an emission controller. The lamp groups illuminate flashes at a recording medium to fix a toner image which has been transferred to the recording medium. The emission controller causes the respective lamp groups to emit light with different emission timings, and alters the emission timings in accordance with the toner of the toner image and physical characteristics of the recording medium.

Abstract: A flash fixing device comprises a first and second flash lamps that emit flashes of light that fix a toner image transferred onto a recording medium and a light emission control unit that controls the light emissions of the first and second flash lamps so that the light flashes emitted from the first flash lamp and the second flash lamp are each irradiated at different timing on each portion on the recording medium.

Abstract: A fixing device that applies heat energy to a recording medium having a toner image formed thereon to fix the toner image includes a flash fixing part that includes a flash lamp disposed in non-contact with the recording medium and applies heat energy to the toner image formed on the recording medium through discharge luminescence of a gas in the flash lamp, and an air stream spraying part that is disposed in non-contact with the recording medium on a downstream side of the flash fixing part in a transporting direction of the recording medium and sprays an air stream at a prescribed temperature onto a surface of the recording medium.

Abstract: An optical measuring device measures optical characteristics of an object in a non-contact state. The optical measuring device has a light source that illuminates an object surface, a light receiver that receives a light beam reflected from the object surface, and a light-regulating member that regulates an illuminating light beam radiated onto the object surface and the reflective light beam reflected from the object surface. The light-regulating member has a first light-regulating member that determines at least one of an illuminating region and a reflective region with respect to the object surface, and a second light-regulating member that determines a region where the reflected light beam that is reflected from the object surface and is incident on the light receiver is measured on the object surface.

Abstract: An image forming apparatus includes a flash fixing section having at least one flash lamp, the flash fixing section fixing a toner image onto a recording medium by light energy being emitted from the flash lamp, a detecting section which detects the light energy emitted from the flash lamp, the detecting section being provided at a position facing the flash fixing section, and a determining section which determines a type of the recording medium based on a value of the light energy detected by the detecting section and a relationship between light energy values and types of a recording medium.

Abstract: A flash fixing device is disclosed. The flash fixing device has a group of main flash lamps which emit main flash light for fixing a toner image on a recording medium; an auxiliary flash lamp provided at a position corresponding to between a pair of flash lamps of the group of main flash lamps; and a light-emission control unit controlling light-emission of the group of main flash lamps and light-emission of the auxiliary flash lamp by using a predetermined relationship. Also disclosed is an image forming device having the flash fixing device.

Abstract: A fixing device that applies heat energy to a recording medium having a toner image formed thereon to fix the toner image includes a flash fixing part that includes a flash lamp disposed in non-contact with the recording medium and applies heat energy to the toner image formed on the recording medium through discharge luminescence of a gas in the flash lamp, and an air stream spraying part that is disposed in non-contact with the recording medium on a downstream side of the flash fixing part in a transporting direction of the recording medium and sprays an air stream at a prescribed temperature onto a surface of the recording medium.

Abstract: A smoothing method extracts an evaluation window including a target pixel of a multi-value image data in which tone is represented by a multi-value in units of pixels, and judges black and white of the target pixel according to a predetermined rule, and binarizes pixel data within the evaluation window. Further, the smoothing method generates a correction value based on collating binarized pixel data within the evaluation window and a look-up table which stores patterns in vicinities of the target pixel, and outputs a multi-value correction signal in which the correction value is converted into a multi-value.

Abstract: In an inkjet head, both tones and smoothing can be represented suitably through use of a small number of drive waveforms. A drive waveform generator unit (46) generates drive waveforms for emitting a ink particle to form dots of a same size within one cycle that is an integral fraction of the cycle for one pixel, a print data generator unit (42) generates print data of a plurality of bits for selecting said drive waveform in said cycle for one pixel, and a head drive unit (47) drives the nozzles of said head by selecting said drive waveform in accordance with said print data. Thereby, tones and smoothing can be represented suitably, through use of a small number of different waveforms.

Abstract: An ink jet printer comprises a color head having a plurality of nozzles arranged on a head carrier, each of the plurality of nozzles injecting color ink particles by the drive of a piezoelectric element; and a monochrome head having a plurality of nozzles arranged the head carrier, each of the plurality of nozzles injecting monochrome ink particles by the drive of a piezoelectric element. Within a single scanning of the head carrier, a control unit switches the printing mode between a color printing mode by the color head and a monochrome printing mode by the monochrome head, to thereby provide a control of printing. For the color-printing mode, a multivalued intensity mode is set, and for the monochrome-printing mode, a high-resolution mode is set, where the resolution of the monochrome head is integer times the resolution of the color head.

Abstract: In an inkjet head, both tones and smoothing can be represented suitably by means of a small number of drive waveforms. There are provided: a drive waveform generator unit (46) for generating drive waveforms for emitting a ink particle to form dots of a same size within one cycle that is an integral fraction of the cycle for one pixel, a print data generator unit (42) for generating print data of a plurality of bits for selecting said drive waveform in said cycle for one pixel; and a head drive unit (47) for driving the nozzles of said head by selecting said drive waveform in accordance with said print data. In order to adjust the head drive frequency and head carrier movement speed in such a manner that adjacent dots of the same size are caused to overlap by one half or more within one pixel, the cycle of the drive waveform (DRV) is taken as an integral fraction of one cycle of the print control signals (for one pixel), and hence one pixel can be represented by a plurality of dots of the same size.

Abstract: A smoothing method extracts an evaluation window including a target pixel of a multi-value image data in which tone is represented by a multi-value in units of pixels, and judges black and white of the target pixel according to a predetermined rule, and binarizes pixel data within the evaluation window. Further, the smoothing method generates a correction value based on collating binarized pixel data within the evaluation window and a look-up table which stores patterns in vicinities of the target pixel, and outputs a multi-value correction signal in which the correction value is converted into a multi-value.

Abstract: An ink jet printer comprises a color head having a plurality of nozzles arranged on a head carrier, each of the plurality of nozzles injecting color ink particles by the drive of a piezoelectric element; and a monochrome head having a plurality of nozzles arranged the head carrier, each of the plurality of nozzles injecting monochrome ink particles by the drive of a piezoelectric element. Within a single scanning of the head carrier, a control unit switches the printing mode between a color printing mode by the color head and a monochrome printing mode by the monochrome head, to thereby provide a control of printing. For the color-printing mode, a multivalued intensity mode is set, and for the monochrome-printing mode, a high-resolution mode is set, where the resolution of the monochrome head is integer times the resolution of the color head.

Abstract: It is an exemplified object of the present invention is to provide an inkjet printer having a head drive circuit that can generate a less distorted drive waveform stably using a smaller-size and smaller-capacitance transistor than the conventional.