摘要:
An image recording apparatus is provided which automatically controls the temperature and humidity in the region of a photosensitive recording medium. The recording medium carries the indication of its sensitivity characteristic. A detector disposed in the image recording apparatus reads the sensitivity characteristics which may take the form of the bar code or magnetic tape. The detector then sends an output signal, to a controller. At least one of a thermal sensor and a humidity sensor are provided in the passage of the photosensitive recording medium. These elements respectively sense the temperature and humidity and output their detection signals to the controller. The controller then controls a heater and a humidifier to set the optimal temperature and optimal humidity for the passage.
摘要:
A thermal fixing device for an image forming apparatus is disclosed which comprises a heater for heating a piece of developer sheet to thermally fix and accelerate coloring of the image on the developer sheet, a sheet delivery path along which the developer sheet is delivered, a cover casing for substantially covering the heater, and a suction/discharge unit for sucking/discharging a gas generated from the developer sheet by the heater. The suction/discharge unit is connected to the cover casing.
摘要:
An image forming apparatus has a cathode ray tube as a light source which is controlled by a control circuit including an image signal inverting circuit for inverting a polarity of an image signal and a vertical deflecting circuit for inverting an image formed on the cathode ray tube in a mirror image relationship on the basis of the vertical synchronizing signal. Thus, the image forming apparatus can provide two kinds of color images obtained by using a microcapsule sheet or a silver chloride sheet.
摘要:
An image forming apparatus including an image forming device for image-wise exposing a photosensitive medium to form an image, and a reading device for reading information which is provided on the photosensitive medium and which is associated with image forming conditions in which the image forming is operated, and which is provided on said photosensitive medium. A control device is provided to control the image forming device according to the information read by said reading device.
摘要:
A tracking servo device for changing a position on an optical storage disk, at which the storage disk is irradiated by a light beam. The servo device is responsive to a tracking error signal indicative of a deviation of the irradiated position on the disk with respect to a recording track provided on the disk. The tracking servo device includes an optical deflector element having a waveguide disposed in a path of the light beam, for guiding the light beam therethrough toward a surface of the optical storage disk, so as to deflect the light beam during propagation thereof through the waveguide. The device further has a deflection control arrangement for controlling an angle of deflection of the light beam by the optical deflector element, based on the tracking error signal.
摘要:
When a copying error is noted after a start of copying operation, an error switch is depressed. Upon depression of the error switch, an error signal is applied to a central processing unit which in turn controls a recording sheet transporting means so that the recording sheet is transported at a higher speed.
摘要:
In response to light reflected by a manuscript, a latent photo-image corresponding to the manuscript is formed on a photosensitive member comprising photocurable microcapsules containing therein dye precursor reactable to a color developing agent to develop a visible image. The photosensitive member is conveyed from a supply source, via a light exposure platform, to a developing section in an imaging device, while effectively protected from ambient light. When a transfer member is used to pass through the developing section, together with the photosensitive member, a separator lug is provided for separating the transfer member from the photosensitive member immediately after passing through the developing section. The exposure platform has a surface of an excellent light-absorptive material to prevent the recording sheet from being exposed again to light reflected from the platform surface.
摘要:
A copying apparatus including an image-illuminating device for illuminating a surface of an original having images to be reproduced, so that a light produced by the image-illuminating device is reflected by the image-bearing surface of the original. The reflected light includes rays to which a photosensitive paper is sensitive. Latent images are formed on the photosensitive paper by means of selective exposure of local portions of the photosensitive paper to the rays of the reflected light from the image-bearing surface of the original.
摘要:
In an optical printing system for printing an image on a recording sheet, adopted as the recording sheet is a sheet coated with microcapsules on one surface thereof. Each microcapsule envelopes a first component which changes color when reacts with a second component. The second component may be coated on the recording sheet or may be coated on a separate developing sheet. The microcapsule further envelopes a third component which varies the mechanical strength of microcapsule when light is projected thereto. An image is formed on the recording sheet by selectively exposing a light thereto in accordance with the image to be printed thereon, and the microcapsules on the recording sheet whose mechanical strength is low are then ruptured by rupturing means. Thereby, the color is developed or the recording sheet on the separate developing sheet by the reaction of the first component with the second component.
摘要:
The casting apparatus for a hollow steel ingot is constructed such that: at least three concentric pipes are provided in the central portion of an ordinary mold for a steel ingot; a core is formed by filling up a space formed between the first outer-most pipe having the largest diameter and the second pipe disposed inwardly of the first pipe with granular refractory material wherein zircon or chromite sand is bound by a binder such as an organic resin; a double pipe is disposed inwardly of said core and forming a gas flow course for cooling the core; and pouring gates formed through the stool for feeding molten steel at an intermediate portion between the inner wall of said mold and the core. The method for producing a hollow steel ingot by use of the casting apparatus as described above comprises: blowing the cooling gas from above into the third inner-most pipe having the least diameter, passing the gas through the second pipe from below and discharging it to above; cooling the molten steel fed into the mold and brought into contact with the outer surface of the first pipe by cooling the core through the inner wall of the second pipe; and controlling the cooling conditions for the core such as the thickness of the cylindrical refractory material of the core, the cross-sectional area of the cooling gas flow course and the thickness of the second pipe so that the finally solidifying position of the molten steel fed can be set at a position which is apart from the core side at a distance of 20 to 50% of the wall thickness of the hollow steel ingot to be formed.