Abstract: A heat transfer recording device which performs recording by heating a heat transfer medium to transfer the ink possessed by the heat transfer medium onto an image-receiving medium, thereby effecting recording on the image-receiving medium. The device having: a platen; a recording head having a plurality of heat-generating elements capable of heat generating; and a pressing member for pressing the recording head against the platen under a pressing force of 800 gf/cm to 3500 gf/cm.

Abstract: An ink jet recording apparatus with plural full-line type recording heads has a heat pipe associated with each recording head. The heat pipes are connected together at a common portion in various ways, such as by a heat-conductive block, one or more additional heat pipes or a container with a heat transferring liquid medium. Such an arrangement enables more efficient and compact temperature control of the recording heads.

Abstract: A liquid jet recording apparatus comprises a line type recording head emitting toward a recording medium a recording liquid for recording and a serial type recording head movable in the arrangement direction of the line type recording head orifices. The serial type recording head compensates for any improperly recording orifices of the line type recording head.

Abstract: A correction data production apparatus includes a detecting unit for reading a test pattern formed by a recording head having a plurality of recording elements constituting an array, and for detecting a density distribution of a range of the array of the plurality of recording elements, a corresponding unit for causing the density distribution detected by the detecting unit to correspond to the plurality of recording elements on the basis of a reference position where a density of an end portion of the density distribution reaches a predetermined threshold value, a production unit for producing correction data for an image formation density uniforming drive conditions in correspondence with the plurality of recording elements on the basis of the density distribution corresponded by the corresponding unit, and a changing unit for changing the threshold value in accordance with characteristics of the test pattern.

Abstract: An image forming apparatus comprises a plurality of different image forming units for recording with different methods. An ink jet recording unit is arranged on the upstream side of an electrophotography recording unit in a transporting path of a recording medium. Recording of the ink jet recording unit is performed prior to that of the electrophotography recording unit.

Abstract: This invention relates to a sheet feeding device having an endless belt for feeding a sheet; multiple rotation members bodies supporting the endless belt and including at least one crown roller, a cylindrical rotational member located between the crown roller and a first body member among the multiple rotation members from the crown roller in the endless belt moving direction.

Abstract: The present invention relates to a liquid jet recording apparatus in which a liquid discharge for recovery of a recording head is directly carried out by the conveying belt. A collecting effect of an ink mist generated at a recording area of the recording head is carried out by a charged conveying belt, a rotary member conveying the recording medium, preferably an electrostatically absorbing conveying belt.

Abstract: An ink jet recording apparatus for effecting recording with ink that adheres to a recording medium has an ink jet recording head unit having a recording head in which a plurality of electrothermal conversion elements available to discharge the ink are arranged, a heat exchange device having a first heat exchange portion contacting with the whole area of one side of the recording head in the lengthwise direction thereof and effecting heat exchange and a second heat exchange portion provided in continuation to the first heat exchange portion and extending on the outside far from the recording head, a heater provided near the second heat exchange portion for heating the heat exchange device, and a temperature detector provided on a portion of the first heat exchange portion; the second heat exchange portion being inclined upwardly relative to the recording head; a cooling device for acting on the second heat exchange portion of the heat exchange device and assisting the heat radiation of the second heat exchange

Abstract: A Doppler velocity meter has a radiation source for emitting a radiation beam the wavelength of which fluctuates, such as a laser; an optical system for directing the radiation beam to an object at an incident angle .theta. and a detector for detecting scattered beam generated from the object by directing the radiation beam. The optical system has a diffraction grating which serves to change the incident angle .theta. in accordance with a change in the wavelength .lambda. of the radiation beam in such a manner as to maintain the value of sin .theta./.lambda. substantially constant. The velocity meter can accurately detect the velocity of movement of the object regardless of any change in the wavelength .lambda., because the diffraction grating serves to substantially compensate for any change in the frequency of the scattered beam caused by the change in the wavelength.

Abstract: The present invention provides a heat transfer recording apparatus for recording an image on a recording medium by selectively applying thermal energy by a recording head, comprises: conveying means for conveying a transfer medium, a recording head for selectively applying the energy to the transfer medium, pressing means for changing a pressing force of the recording head, tension means for changing a conveying tension on the transfer medium, peeling angle changing means for changing an angle of the transfer medium peeled from the recording medium; and control means for changing the conveying tension on the transfer medium or/and the peeling angle in response to the change in the pressing force of the recording head.

Abstract: A copying machine records an image on a recording sheet through the use of an ink donor sheet with thermally transferable ink.

Abstract: A two-color copying machine records an image on a recording sheet in two colors such as red and black by using thermally transferable red and black inks on ink donor sheets.