Abstract: An exposure apparatus has cold mirrors for reflecting visible rays irradiated from light sources and for allowing infrared rays and a part of visible rays irradiated from said light sources to pass therethrough, disposed on a side of a case body. The exposure apparatus eliminates an excessive heat-up at an original image support station by using the cold mirrors and increases a tonality and an effective speed for forming a latent image on a photosensitive sheet with supplementary exposures using a leak of light passed through the cold mirrors.

Abstract: An apparatus is provided for use in printing systems wherein regions of rupturable capsules of a layer of capsules adsorbed on an imaging sheet are ruptured to release chromogenic materials that react to developer and print an image on a sheet. The apparatus has a container storing the capsules. A separately prepared sheet of plain paper is fed into the apparatus where the capsules are adsorbed thereon, forming an imaging sheet. Then an image is outputted from the apparatus through exposure process and development process. As a consequence, the user do not directly touch capsules which are vulnerable to friction and rubs, and this facilitates the handling of the imaging sheet.

Abstract: Apparatus is provided for use in printing systems wherein regions of rupturable capsule layer are ruptured to release dye that prints an image on an image-receiving sheet. An optical valve member is positioned between a light source and an imaging sheet which has the layer of capsules on its surface. An image pattern formed on a ferroelectric ceramic plate of the optical valve member by the irradiation of an electron beam together with an ultraviolet light in accordance with each color separation signal is projected onto the imaging sheet. The imaging sheet projected with the image is positioned so that the layer of capsules lies between the imaging sheet and the image-receiving sheet. A pressure roller applies pressure against the imaging sheet and the image-receiving sheet to rupture the capsules between them to thereby transfer the dye to the image-receiving sheet.

Abstract: An apparatus is provided for use in color printing systems wherein an image is projected by a plurality of monochrome pictures corresponding to the pictures separated into three primary colors onto an imaging sheet which contains in layers pressure rupturable capsules, each encapsulating a dye and a photosensitive composition. The plural monochrome pictures are made by a laser scanner unit on the surface of a photosensitive drum according to image information and are transferred from the surface of the photosensitive drum to a transparent film. The transparent film is moved between a light source unit and a projection lens unit to project the plural monochrome pictures onto the imaging sheet.

Abstract: Apparatus is provided for use in color printing systems wherein an image is projected by a plural monochrome pictures corresponding to the pictures separated into three primary colors onto an imaging sheet which contains a dye and a photosensitive composition encapsulated in a layer of pressure rupturable capsules. The imaging sheet projected the image is positioned so the layer of capsules lies between the imaging sheet and an image-receiving sheet. A pressure roller applies pressure against the imaging sheet and the image-receiving sheet to rupture the capsules between them and thereby transfer the dye to the image-receiving sheet.

Abstract: A mounting structure for a printed circuit board comprises a rack frame having guide rails to receive the circuit board. The circuit board is retained in fixed position in the rack frame by a leaf spring which is flexibly mounted on the circuit board and has a detent portion engageable in a recess in the rack frame. A rod member mounted on the circuit by means of a bracket is engageable with the leaf spring and is operable to flex the leaf spring between a position in which the detent portion is engaged in the recess of the rack frame to secure the circuit board in position in the rack frame and a position in which the detent portion of the leaf spring is disengaged from the recess so as to release the circuit board for removal from the rack frame. In one form the rod member is rotatable and has a flat portion which is engageable by the leaf spring to disengage the detent portion from the recess.

Abstract: A marking apparatus in the form of handy and compact writing tool can be used as a marking counter for numerals and quantities, and also used as a stop watch for measuring the time duration in athletic sports or in industrial use. These wide range of applications are enabled by an electronic circuit contained in the apparatus and comprising switches to input marking frequencies, an oscillator generating standard clock pulse signals, counters for counting output signals respectively from the switches and the oscillator, a reset switch for the counters, a toggle switch selectively connecting the marking portion and the oscillator to the counters, segment drivers decoding signals from the counters and driving indicators which display counted values of the counters as figures.