摘要:
A printer, including a first and a second feed mechanism supported by a carriage for feeding a print ribbon and an erase ribbon, respectively, at least one rotatable shaft supported by the reciprocating carriage rotatably in opposite directions, a one-way clutch for transmitting the shaft rotation in one of the opposite directions to the first feed mechanism, and inhibiting transmission of the rotation in the other direction, and a control mechanism for inhibiting transmission of the shaft rotation to the second feed mechanism when the printer is in a printing mode, and transmitting the shaft rotation to the second ribbon mechanism when the printer is in a correction mode, whereby the carriage reciprocation activates the first and second feed mechanisms. A converter may be provided for converting the shaft rotation into movements of a ribbon lift to shift the erase ribbon between an erasing and an inoperative position. The rotation control mechanism inhibits transmission of the shaft rotation to the converter while in the printing mode, but transmits the rotation to the converter while in the correction mode. Thus, the carriage reciprocation also cause the shifting movements of the erase ribbon.
摘要:
In a printing device according to the present invention, a housing assembly comprises a pair of housings which are rockably supported, with their respective open end portions abutting against each other. A platen is disposed in an abutment region where the open end portions abut. A keyboard is provided on the one housing, while a printing element is disposed inside the other housing. When the printing device is in a nonusable position, the two housings extend along one plane, thus defining a flat, rectangular outline of the housing assembly. When the device is in a usable position, the housings are rocked relatively, thus defining a substantially L-shaped outline of the housing assembly. As the housings rock in this manner, the printing element is brought to a printing position, where the element faces the platen.
摘要:
A light-and pressure-sensitive recording sheet and an original, overlapping each other, are introduced into an image forming apparatus, and are exposed to radiation on a transparent drum by means of a light source in the drum, whereupon a latent image, based on the contents of the original, is formed on the recording sheet. Then, the recording sheet is separated from the original by means of a separator, and is passed between a pair of pressure rolls. When the recording sheet is exposed, microcapsules thereon change their hardness. These microcapsules are ruptured selectively by pressure applied to the sheet. As a result, a chromogenic material, contained in the microcapsules, and a developer material, on the surface of a substrate of the recording sheet, react with each other, so that the sheet surface changes its color. Thus, the latent image is developed to accomplish copying in accordance with the original.
摘要:
An imaging device wherein a latent image is formed on a photo and pressure sensitive recording sheet by exposing a light thereon and the latent image is then developed by applying a pressure thereon. The degree of pressing is automatically and/or manually controlled so as to obtain a visible image of stable color deepness and of good quality.
摘要:
An image transfer system including a photosensitive medium having a layer of microcapsules formed on a substrate, an exposing device having a cathode ray tube for emitting a radiation for imagewise exposing the photosensitive medium, and a CRT control device for controlling the cathode ray tube. Each microcapsule includes a photosensitive resin whose strength is varied according to an amount of exposure thereof to the radiation, and contains a chromogenic material capable of chemically reacting with a developer material, to form a visible image. The CRT control device stores image signals representative of a picture frame, and applying the image signals to the cathode ray tube, to cause the tube to emit the radiation for forming a latent image of the picture frame on the photosensitive medium, so that the latent image is subsequently developed into a visible image.
摘要:
In an image recording apparatus, a desired recording sheet is automatically selected from a sheet feeding section that is provided with plural types of image recording sheets at least one of which is a photosensitive and pressure-sensitive recording sheet, based on encoded data that corresponds to the individual types of recording sheets. The selected recording sheet is fed through feeding means to an image recording section where an image recording operation is performed in accordance with the type of the selected sheet.
摘要:
An image transfer system wherein latent images formed on a photosensitive medium by exposure to a radiation according to image signals are developed into visible images, the photosensitive medium having a basic minimum amount of exposure to the radiation, which substantially defines a lower limit of a density-variable range in which a density of the visible images is varied according to an amount of exposure of the medium to the radiation. The present image transfer system includes a first device, a second device and a developing device. The first device is adapted to expose the medium a predetermined basic amount not larger than the basic minimum amount. The second device exposes local areas of the medium to a controlled intensity of the radiation represented by the image signals, and thereby cooperates with the first device to form the latent images on the photosensitive medium. The latent images are developed into the visible images by the developing device. Also disclosed a filter device for compensating for a difference in sensitivity of the medium to different wavelengths of the radiation for color imaging.
摘要:
An image recording system including a photosensitive medium having a layer of microcapsules formed on a substrate, each of the microcapsules having a photosensitive resin which is curable upon exposure to a radiation, and a colorless chromogenic material or color former which is capable of chemically reacting with a developer material, to form a visible image. The system further includes an exposing device for forming a latent image on the photosensitive medium according to image signals, by exposure of the medium to the radiation. The latent image is developed into a visible image. A communication device is provided for translating facsimile signals into corresponding picture signals. The facsimile signals are received from a remote facsimile transmitter through a communication channel and represent an image of a subject copy. Control means are connected to the communication device and the exposing device, for applying to the exposing device the picture signals received from the communication device as the image signals, to thereby form on the photosensitive medium the latent image represented by the picture signals.
摘要:
An imaging device wherein a latent image is formed on a photo and pressure sensitive recording sheet by exposing a light thereon and the latent image is then developed by applying a pressure thereon. The degree of pressing is automatically and/or manually controlled so as to obtain a visible image of stable color deepness and of good quality.
摘要:
Motor-control device for an image forming apparatus includes a motor, an encoder, a microcomputer, and a driving circuit. The encoder generates a pulse signal in response to rotation of the motor. The microcomputer includes a CPU, a RAM and a ROM. The CPU detects actual rotational speed of the motor based upon the pulse signal generated by the encoder. The CPU cyclically provides a driving signal by comparing the actual rotational speed with a predetermined target rotational speed of the motor. An operating cycle is proportional to a cycle of the pulse signal generated by the encoder. The driving circuit drives the motor based upon the driving signal provided by the CPU. The CPU determines the operating cycle based upon the predetermined target rotational speed. The CPU also determines whether the motor condition is normal or abnormal by comparing the driving signal with a predetermined reference driving signal.