Abstract: A laser recorder applicable to computer output microfilm recording apparatus, which comprises; a housing, a film feeding unit having a film cassette containing a rolled heat development film and disposed in the lower section of the housing, a film take-up unit taking up the heat developement film on a reel or on a tray in sheet films, a main driving unit and driving the heat development film for running at a fixed speed for auxiliary scanning for recording image information on the heat development film, an image information recording unit for main scanning, having a laser optical system for scanning the heat development film across the width thereof to record image information thereon, and a heat developement unit for heat-developing the image information recorded on the heat development film.

Abstract: A light beam recording apparatus modulates a light beam on the basis of image information and deflects the modulated light beam to scan a photosensitive recording material, thereby recording an image born by the image information on the recording material. The light beam recording apparatus is provided with a temperature sensor for detecting the temperature of the photosensitive recording material, and the quantity of light in the light beam is controlled on the basis of the output of the temperature sensor to compensate for change in the photosensitivity of the recording material with change in the temperature of the recording material.

Abstract: An image beam recording apparatus including an image data input device, a comparator for forming a plurality of pulse width modulated signals on the basis of the image data input by the input device, and a laser for scanning a laser beam modulated in accordance with the pulse width modulated signals output by the comparator and for recording an image on a recording medium. The comparator is capable of forming a plurality of pulse width modulated signals so as to reproduce a variable density image. The plurality of pulse width modulated signals have the same number of pulses, but different pulse widths. The laser effects a scanning operation so that a plurality of beams modulated by the pulse width modulated signals form spots which overlap each other.

Abstract: In order to minimize the effects of heating on performance and reliability in a phase change ink jet system, the ink jets comprise a material having a thermal conductivity of at least 0.03 g cal/sec cm.sup.2 (.degree.C./cm). The material may comprise stainless steel or aluminum. The reservoir of the system comprises the same material.

Abstract: A rotary action graphic recording system includes a pen carriage supporting a linear array of moveable pen shuttle assemblies each of which support recording pens together with means for moving the pen carriage in a carriage path. Rotary actuation means are supported by and operative upon the pen carriage to engage selected ones of the recording pens for movement into contact with the recording media. The rotary actuating means are operated by an elongated actuator beam supported in parallel with the carriage path and coupled to the rotary actuating means. Brake means within the rotary actuator are provided which are operative to engage the actuator beam and permit alignment of the rotary actuator with a selected pen within the pen carriage array by movement of the pen carriage. The moveable pen shuttle assemblies are slideably captivated within pen channels formed in the pen carriage and are supported by interposed bearings. Spring returns bias the pen shuttle assemblies to their nonrecording positions.

Abstract: When a data control portion receives a request for change of a pixel density, a cycle used as a reference cycle for detecting abnormality in a laser beam is changed corresponding to the pixel density. While a rotating speed of a polygon mirror for changing the density of picture element is not constant, emission of the laser beam is forbidden and detection as to abnormality in the laser beam is not effected. A mark for detection of an image density is formed on a photoreceptor where the laser beam is scanned, and outside an area where the image is to be formed. The formation of the detection mark is forbidden while the pixel density is being changed. On the other hand, when the detection mark is being formed, output of an instruction for changing the pixel density is deferred. In addition, emission of the laser beam is forbidden while the pixel density is being changed.

Abstract: A method and apparatus for providing platen mapping for known clearance pen movement in a graphics plotter system having a platen over which paper is moved longitudinally to create one axis, penholding apparatus moved transversely across the platen and the paper to create the other axis, and a controlled raising and lowering mechanism connected to the penholding apparatus for lowering a pen being held therein into contact with, for raising it from contact with the paper, and for providing a relative vertical position value signal. Vertical sensing apparatus is connected to the penholding apparatus for sensing the top surface of the platen. First logic is operably connected to the vertical sensing appartus and to receive the vertical position value signal from the controlled raising and lowering mechanism for calculating and saving a plurality of deviation values indicating the distance deviation of the platen top surface from parallel at a plurality of spaced points across the platen.

Abstract: A solid ink delivery system for supplying sticks of solid ink to a ink jet printer is disclosed. The solid ink delivery system includes a delivery assembly for each color ink stick supplied to the printer. Each delivery assembly includes a tube assembly where the ink sticks are stacked prior to their delivery to the printer. A triggerable ink stick feed assembly is provided for normally holding the in sticks in place. When triggered, the ink stick feed assembly releases the bottommost ink stick or sticks to an opening in the printer adapted to receive them, and restricts the movement of the above stacked ink sticks. The solid ink delivery system is adapted for use with a moving print head having a number of reservoir openings each adapted to receive ink sticks of a different color. A positioning means aligns the print head so the reservoir openings are under the tube assemblies that supply them with the appropriate color ink.

Abstract: An ink-jet printing apparatus comprises a thermal printing head having heating elements, and a film nozzle member having a plurality of holes for holding an ink and a plurality of connecting grooves for connecting same of the plurality of holes, said plurality of connecting grooves being formed in a surface thereof opposing the heating elements of the thermal printing head. While the heating elements are selectively heated, bubbles are formed in the heated ink filled in the plurality of holes in the film nozzle member as it passes over the heating elements, said bubbles being formed adjacently to the heating elements, and the ink ejected from the plurality of holes by the pressure created by the bubbles is attached to a printing member conveyed near the film nozzle member in the vicinity of the thermal printing head, thereby performing printing.

Abstract: An image recording system includes an electro-optic image section having a luminescent display device, such as a high-resolution monochrome cathode ray tube (CRT), that successively directs its light output through a red, a green, and blue filters to expose recording film contained within a camera. The recording film can take the form of positive roll film that is processed into slides or self-developing film units. The CRT is controlled to sweep a scan line at specified line positions while modulating the output light in a digital manner and repeat the line sweep until all pixel positions for that line are properly exposed. After all lines for a particular color are imaged, the filter is changed to the next color to be imaged and the process repeated until all scan lines for the different colors are completed. The system allows very precise exposure control to create developed images having fine gradation in color density and hue.

Abstract: A laser printer includes a semiconductor laser for generating a laser beam which is modulated according to information, a rotating polygon mirror for scanning the laser beam generated by the semiconductor laser, and an f.theta. lens system for imaging, onto a photosensitive drum, the laser beam scanned by the rotating polygon mirror. The f.theta. lens system has first and second lenses arranged, in this order, next to the rotating polygon mirror and on the optical path through which the laser beam is introduced from the rotating polygon mirror to the photosensitive drum. Each of the first and second lenses has light-entering and -emerging faces which are formed in a non-spherical shape.

Abstract: A printing apparatus for use in a printer with a photo-sensitive drum. The printing apparatus includes a spotlight source for generating a light provides essentially a point source. A photo-optical converter which is optically coupled to the spotlight source converts the light from the spotlight source to linear rays of light. A plurality of microshutters optically coupled to the photo-optical converter selectively transmits the light at selected portions of the array to the photo-sensitive drum. As a result, a light path is defined from the spot-light source through the photo-optical converter and the microshutters to the photo-sensitive drum.

Abstract: In the embodiment of the hot melt ink supply unit described in the specification, a block of solid hot melt ink has a peripheral surface formed with a key configuration and a handle is removably connected to the block by a threaded projection. After insertion of the block into a correspondingly keyed opening in a heated reservoir, the handle is turned to separate the handle portion from the block of solid ink. A container provided with a removable seal encloses the block of solid ink and handle to protect the ink from contamination.

Abstract: An image taking apparatus consisting of a main unit capable of image recording in at least one of a first recording mode in which an object image is focused by a focusing system onto an image reading device is photoelectrically read and a second recording mode in which the object image is focused by a focusing system onto a recording medium for image recording, and a sub unit detachably attachable to the main unit is used for the recording in the second recording mode, and, when it is attached to the main unit, it receives the light image of the object image from the main unit and executes recording in the second recording mode.

Abstract: A pattern printing device using a plurality of films. A robot arm suctions in the film from a stocker and includes a sensor to read film and operation data from the film. Such data can be displayed.

Abstract: An image recording apparatus wherein a plurality of laser beams are scanned on a color photosensitive material by an optical deflecting device, the laser beams are detected by beam detecting devices, and record starting timings for the laser beams are controlled on the basis of detection signals provided by the detecting devices so that respective record positions of the laser beams are the same.

Abstract: When a data control portion 300 receives a request for changing a density of picture elements from an external data processing apparatus, a printing control portion 200 defers exposure if it is before start of exposure, until a rotating speed of a polygon mirror 34 becomes constant. If exposure is being performed, the printing control portion 200 defers change of the density of picture elements until the exposure is completed. If printing is being performed in response to a printing request received till then, the printing control portion 200 defers change of the density of the picture elements until the printing is completed. In addition, the printing control portion 200 automatically sets an initial density value of picture elements designated by a printing density initialization switch 237, when power supply is turned on.

Abstract: A transport device for a register tape of an electric register mechanism having a housing containing a supply load unit into which a supply roller serving for unwinding the register tape is insertable, and a transport roller which, together with a contact pressure roller, grips a register tape running between both the transport roller and the contact pressure roller and passes it from the supply roller unit to and beyond a register element of the register mechanism for performing a recording on the register tape, the supply load unit being at least partly removable from the housing for inserting the supply roller therein, the supply roller and the contact pressure roller being spatially separated from one another during the removal of the supply load unit includes means defining a contact pressure surface, the register element being at the contact pressure surface, the transport roller, in operating position thereof, being located between the contact pressure roller and the contact pressure surface, the trans

Abstract: A fuzzy logic circuit comprising a current mirror comprising an FET, a first input current source connected to the input side of the current mirror, a second input current source, a wired OR connected at its input side to the output side of the current mirror and to the second input current source, and an output terminal connected to the output side of the wired OR.

Abstract: A rotary action graphic recording system includes a pen carriage supporting a plurality of recording pen shuttles in a linear array together with means for moving the pen carriage in a carriage path. Each pen shuttle supports a recording pen having a downwardly extending tip. Rotary actuation means are supported by and operative upon the pen carriage to engage selected ones of the recording pen shuttles for movement of the pen tips into contact with the recording media. The rotary actuating means are operated by an elongated actuator beam supported in parallel with the carriage path and coupled to the rotary actuating means. Brake means within the rotary actuator are provided which are operative to engage the actuator beam and permit alignment of the rotary actuator with a slected pen within the pen carriage array by movement of the pen carriage.