Abstract: Color imaging apparatus is disclosed for forming a beam of light having three separate intensity modulated color components. The beam is line scanned across the surface of a photosensitive surface for recording. Three separate color component light modulating channels are provided. Each channel includes an electro-optic modulator responsive to a voltage signal for modulating the intensity of collimated light passing through it in accordance with the desired intensity of a color component. Dichroic mirrors separate the light from each channel into an intensity modulated color component. These intensity modulated color components are combined into a single beam which is line scanned across the surface of the photosensitive member.

Abstract: A multiple stylus electrode for discharge printing body for discharge printing comprises a body mainly of a resin having a thermal deformation temperature of at least 200.degree. C., having a plurality of electrode elements of an elongate core coated with borosiloxane resin in a parallel array extending from said electrode body.

Abstract: A signal quantizer is disclosed which compares an input signal with a plurality of predetermined adjustable thresholds, associates with each threshold a potential output signal of predetermined adjustable magnitude, identifies the largest threshold exceeded by the input signal, and produces as an output signal a signal representative of the potential output signal associated with the threshold identified.

Abstract: A laser beam recording apparatus having a parallel-plane plate, such as a dust proof glass plate or a light controlling filter, which is disposed across the optical path of the laser beam. The beam transmitting surfaces of the parallel-plane plate are so inclined that the angle of incidence of the laser beam thereon is not zero throughout the scanning movement of the laser beam.

Abstract: A video signal generating apparatus for a laser beam printer including a dot counter which counts the dots along the horizontal side of a recording area, and a raster counter which counts the dots along the vertical side of the recording areas. In accordance with the outputs of these counters, a character pattern memory produces a character print dot signal, while a set value representing a ruled line size is calculated from the outputs of the dot counter and the raster counter, thus producing a ruled line signal. These two signals are combined to make up a video signal.

Abstract: An optical recording structure layer has an optical reflecting layer, a phase layer on the reflective layer, an active layer on the phase layer and a matrix layer on the active layer. The phase layer and matrix layer are substantially transparent to radiation. A thin metal layer on the matrix layer has a thickness from 20 to 100 Angstroms to achieve a relatively constant absorption and reflection characteristics for the structure over a broad band of radiation.

Abstract: Liquid jet apparatus comprises: a liquid jet head having an electrical-mechanical transducing element to discharge a liquid; a drive circuit for supplying a driving signal to the electrical-mechanical transducing element; a directional coupling circuit provided between the electrical-mechanical transducing element and the drive circuit; and a detecting circuit for detecting an electric power which is generated in the electrical-mechanical transducing element through the directional coupling circuit.

Abstract: A liquid supply apparatus is characterized by the provision of pumping means for supplied liquid interposed between a liquid supply portion and a portion to be supplied with liquid, a first valve mechanism having a small resistance in a forward direction, and a second valve mechanism having a high checking characteristic.

Abstract: A dot printer is presented having an arrangement of dot emitters which is suitable for producing various line widths in a vector graphics mode as well as producing lines and characters of various sizes in a raster scan mode. The printer has emitters arranged in a pattern having one emitter in each row and in each column of the pattern. The pattern is formed from primitive dot patterns which can be utilized in the vector graphics mode to produce vectors of various line widths. The generation of dots is controlled to produce rounded terminations of line segments.

Abstract: A printer comprising a printing mechanism, a control circuit which controls said printing mechanism and a power supply including battery, wherein said power supply provides the first stabilized power source circuit which converts an output voltage of said battery to the predetermined first supply voltage and then supplies it to said printing mechanism and the second stabilized power source circuit which converts an output voltage of said battery to the second supply voltage which is lower than said first supply voltage and then supplies it to said control circuit, and moreover a detecting circuit, which is composed of a transistor and resistors and detects that difference between the supply voltages of said first stabilized power source circuit and second stabilized power source circuit has reached a value lower than the predetermined threshold value, is also provided, and moreover the printing operation is controlled on the basis of an output signal of the detecting circuit.

Abstract: A plotter-printer includes a carriage assembly which is reciprocatingly movable along a platen, and the carriage assembly is comprised of a carriage main body, a plurality of pens movably mounted on the carriage main body in a predetermined pattern such that they are normally located at a retracted position where no printing takes place and selectively moved to an advanced position where printing takes place when actuated and at least one actuating lever pivotally supported on the carriage main body for selectively actuating the pens. In the preferred embodiment, the pens are arranged in a plurality of parallel rows which are spaced apart from one another in a direction normal to the direction of movement of the carriage assembly and a like plurality of actuating levers are provided, one for each of the rows.

Abstract: An ink jet apparatus employing hot melt ink includes a reservoir which may be heated independently of the ink jet itself. This permits the reservoir to be heated when the apparatus is to operate in the ejection mode, so as to melt the ink into the liquid state in the reservoir. The reservoir may also be cooled so as to return the ink in the reservoir to the solid state in the stand-by mode while the ink in the jet remains in the liquid state at all times throughout the stand-by mode and the ejection mode.

Abstract: A pen-recording apparatus capable of recording not only regular letters, but also special letters each of which consists of the regular letters slightly shifted relative to each other. The apparatus comprises a platen supported rotatably to hold a sheet of paper, a pen movable along the platen, a platen drive to rotate the platen, and a pen drive to move the pen. The apparatus further comprises a primary control device for controlling the platen and pen drives to cause movements of the pen and the sheet of paper relative to each other for writing on the paper a first element which is the regular letter, and a secondary control device for controlling the drives, after completion of writing of the first element, to bring the pen to a starting position of a second element which is the same regular letter as the first element, the starting position of the second element being shifted by a predetermined distance from that of the first element in a selected direction.

Abstract: A method and apparatus for separately weighing, by means of a common scale, contributions of material from multiple streams, such materials typically being printed papers, such as from a printing press. Material that is to be weighed, which is typically waste material, is loaded into receptacles or the like for temporary storage thereof and is subsequently and sequentially released into a storage bin or the like associated with the common scale. An increase in measured weight associated with each respective material release or discharge is then determined. From each weight increment associated with one of the multiple streams, is added to provide a total count corresponding to weight and associated with each, one of the individual streams of the multiple streams of material. In this way, separate count totals are maintained and continuously updated for a plurality of different corresponding deliveries but using a common scale and associated storage bin or container.

Abstract: A paper transport apparatus is illustrated which strips a single sheet of paper 16 from a stack 18 using a stripping roller 20 and cooperating fingers 22. The sheet of paper 16 is directed between the nip of a pressure roller 26 and a transfer roller 28. The transfer roller 28 is mounted on a drive mechanism 30 and is selectively positioned against a transfer drum 40 carrying an ink pattern by a cam 66, follower 72 and a spring 60 combination. The paper 16 is driven by the transfer roller 28 in contact with the drum 40 and discharged along a shelf 52 guided by a belt 50.

Abstract: An ink dot printer includes an ink tank for storing magnetic ink, a pair of magnetic pole plates arranged opposite to each other to form a slit, one end of the pair of plates being immersed in the magnetic ink in the ink tank. An electromagnet magnetizes the paired magnetic pole plates to introduce the magnetic ink in the ink tank into the slit to form a magnetic ink film therein, and a plurality of needles arranged adjacent to one another in the longitudinal direction of the slit are each freely movable in the longitudinal direction of the needle between a first position where its one end portion is immersed in the magnetic ink film in the slit between the paired magnetic pole plates and a second position where its one end portion is projected from the magnetic ink film in the slit.

Abstract: An ink jet printer employs writing fluid consisting of two components, one of which is located in a reservoir of a print head, with the other being situated in a separate reservoir of a further ejection apparatus. Discrete droplets are sprayed from individual jets of the print head onto the recording medium under the influence of individually controllable electro-mechanical transducers. The further ejection apparatus is mounted on the same carriage with the print head in an offset position, and incorporates spray apparatus for one or more discharge jets for ejecting the second fluid constituent onto regions of said recording medium corresponding to locations of the dots of printed characters. The use of two fluid components achieves reduced drying time of the writing fluid, and eliminates clogging of the print head.

Abstract: A reading and recording apparatus uses the moving force of the recording/reading head, instead of a separate drive source such as a solenoid, to effect up and down movement of the head, and also maintains the head in a retracted position during a reading operation, thereby reducing the power consumed by the apparatus. The construction of the inventive apparatus is simplified by effecting movement of the head between recording and retracted positions in response to the movement accompanying the scanning of the head and the scanning position of the head.

Abstract: A multi-color ink jet system printer includes a printer head mounted on a carriage which is driven to travel in front of the platen in the lateral direction. The printer head includes a nozzle unit having a plurality of orifices aligned in a matrix fashion. A printer head inclination adjusting assembly is provided for accurately adjusting the row of matrix aligned orifices to parallel the lateral direction.

Abstract: An ink jet printer has a chamber for the evacuation of gases which form during the printing operation, the chamber having an associated Venturi pump acting as a vacuum source.The electrical energization circuit for the printer includes an adjustment member for effecting controlled variation in the energy of the pulses which cause the ejection of ink sprays through the printer nozzles.