Abstract: A hand scanning type image input and output device includes a main body adapted to be moved by hand to scan an object, such as a manuscript, and having an enclosed readout head adapted to read out the information on a desired portion of the object via an opening formed on the surface of the main body which is tightly contacted with the object, a movable roll reciprocably supported on the surface of the main body in which the read-out opening is formed, and a travel guide section rotatably mounted to the main body. A mounting reference surface for the object is formed on the perimeter of the read-out opening and the movable roll is rotated in synchronism with a detecting unit adpated to detect the distance traversed by the main body.

Abstract: Disclosed is a stamping device for use in facsimile equipment, wherein a document has a mark stamped hereon after its information has been transmitted. The stamp device is composed of a stamp body which has a stamp face for marking the document and a handling knob; a mounting plate for detachably holding the stamp body; and a solenoid for moving the mounting plate, whereby the stamp face is pressed onto the document so as to stamp the mark. The stamp body and the mounting plate are shaped so that the stamp body is engaged with a freely removed from the mounting plate by using the knob of the stamp body.

Abstract: An illumination apparatus adapted for illuminating a subject with light comprises a plurality of fluorescent substances each having a different spectral characteristic, a drive device for repetitively locating the fluorescent substances at a predetermined position and a light source for illuminating the fluorescent substances. The illumination apparatus further includes a slit for focusing light on a subject to be illuminated. When the illumination apparatus is incorporated as a transfer section into a recording system such as a facsimile and a copying machine, the fluorescent substances are alternatively positioned at a predetermined location to illuminate a recording sheet, thus making it possible to obtain a clearly recorded image with high precision and at high speed.

Abstract: An electrode array for an electrooptical facsimile recorder and a method of controlling this electrode array are disclosed. A plurality of spot electrodes are inserted between two main electrodes deposited on a lead lanthanum zirconate titanate (PLZT) substrate. In this manner, three partial lines of electrically controllable light gates are formed which provide a line-at-a-time output of the information to be reproduced. The individual light gates are controlled by driver ICs with push-pull output stages. To control the individual partial lines, different voltages must be applied to the main and spot electrodes.

Abstract: In an electrothermal printing apparatus, ink ribbon is fed in a predetermined direction and is contacted with a recording electrode and a return electrode which is located upstream of the predetermined direction with respect to the recording electrode. A signal current is supplied from the recording electrode to a conductive layer of the ink ribbon through a resistive layer and the signal current supplied to the conductive layer is supplied to the return electrode through the resistive layer. Heat is generated at a portion of the ink ribbon, which is contacted with the recording electrode and is applied to the ink layer through the conductive layer, thereby printing an ink of the ink layer to a paper.

Abstract: An electrical control device (8) is operable by a lever (12) and includes a deformable member (50) which is deformed in response to manual pressure on the lever. The deformable member (50) has an electrically conductive surface portion (52) which is arranged to engage a continuous area or track of resistive material (62) such that as a changing manual pressure is applied to the lever (12) a changing amount of the track is electrically bridged or short circuited by said conductive surface portions (52). The resistive area or track is connected to electrical terminals (64, 66) so as to present a continuously variable electrical resistance across the terminals depending on the manual pressure applied.

Abstract: An image recording apparatus for effecting image recording on a recording medium has drive transmitting members for imparting a drive force to a displaceable member, a motor for imparting a drive force to the drive transmitting members, COMMAND UNIT for designating the drive torque of the drive means, and control unit for controlling electric power applied to the drive means in conformity with the drive torque designated by the COMMAND UNIT.

Abstract: An apparatus for recording a binary image of a printed circuit pattern on photosensitive material. First and second rows of recording spots scan the photosensitive material. The second row is shifted by a length corresponding to approximately half the diameter of the recording spots. Each of the recording spots covers an area equal to approximaqtely four pixels. Whether a pixel is to be exposed is determined on the basis of a logical sum or product of data corresponding to four adjacent pixels.

Abstract: A graphic recording system includes a pen carriage supporting a plurality of pen shuttles which support a plurality of recording pens in a linear array together with means for moving the pen carriage in a carriage path. A rotary actuation system is supported by and operative to engage selected ones of the pen shuttles to move a selected one of the recording pens into contact with the recording media. The rotary actuating system is operated by an elongated actuator beam supported in parallel with the carriage path and coupled to the rotary actuating system. A brake within the rotary actuator is operative to engage the actuator beam and permit alignment of the rotary actuator with a selected pen shuttle within the pen carriage array by movement of the pen carraige. Each recording pen is secured to its respective pen shuttle by a bayonet mounting system such that the recording pens are secured to the pen shuttles in a twist-lock assembly.

Abstract: A print head assembly includes the feature of snap-in, tool-less replaceability. The print head is intended for an application where extended use is expected and replacement, due to wear, will be necessary by nontechnical users of the printing system. In one embodiment, the print head utilizes two pins which slide into slots formed in the printer body. The print head is free to pivot about the two pins and is urged against a platen by the force of bias springs and a loaded pin. The loaded pin engages with, and forces upwrd on the heat-radiating fins extending from the bottom of the print head. Shelves formed in the printer body cover engage the two pins of the print head and force the print head, against the forces of the bias springs, into a proper alignment position when the cover is closed. This allows firm engagement of the print head with the platen, and proper alignment thereof, without fixing the print head to a mounting structure.

Abstract: A positive temperature coefficient thermistor device has a case, a positive temperature coefficient thermistor element which is disposed in the case, a pair of first terminals which is disposed in the case to be in contact with corresponding electrodes of the thermistor element, a pair of second terminals which is disposed on the case and is associated with the first terminals, and pin members electrically and mechanically connecting the first terminals with the second terminals through an outer wall of the case.

Abstract: A strain sensor including a ceramic substrate deformable in response to a stress exerted thereon, and an electrically resistive layer formed on the ceramic substrate, so that a strain of the ceramic substrate caused by the stress is detected as a change in a resistance value of the electrically resistive layer. The electrically resistive layer has a composition which includes a dielectric material selected from the group consisting of glasses and ceramics, and at least one principal electrically conductive component in the form of a powder selected from the group consisting of: borides, carbides and nitrides of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W; borides of Y, Sc and lanthanide series; BN; B.sub.4 C; BSi; SiC; and Si.sub.3 N.sub.4.

Abstract: A potentiometer for attachment to objects undergoing strong vibrations, such as the engine block of an internal combustion engine has an outer housing which is secured to the object and an inner housing which is largely positioned inside the outer housing. The two housings are connected by at least one springy damping member, such as an O-ring made of rubber and, at the same time, they are largely uncoupled with respect to vibrations.

Abstract: In a low resolution color printer having a color set, a set of shaded colors is generated thereby expanding the color set of the printer. The method for generating the shaded colors determines if a critical line is to be printed. Then a check is made to determine if a shaded color is to be printed. If a pattern of a shaded color is to be printed, including a non-critical line, a first algorithm is used to generate a print buffer by interspersing a dark (quasi-black) colored pixel among the colored pixels, the blending effect resulting in a shaded color. If a critical line of a shaded color is to be printed, a second algorithm is utilized (to overcome a deficiency of the first algorithm) to insure an interspersing of the dark pixels with colored pixels. Otherwise, the pattern is printed in the designated color.

Abstract: Disclosed is a density gradation control type thermal printer which comprises: a plurality of heating resistor elements arranged so as to correspond to a plurality of picture elements on every print line with one-to-one correspondency; selectively energizing the heating resistor elements be in current conduction each for a time of an integer multiple of a current conduction unit time for every print line to thereby give density gradation to the picture elements; and selectively energizing the heating resistor elements in a descending order of current/conduction time for every print line, and making the heating resistor elements terminate current conduction at the same time or in the ascending order of current conduction time.

Abstract: An ink jet recording head comprising an ink flow path communicating with an ink jet nozzle and an electro-mechanical converting element provided along said ink flow path, an ink acting surface on which energy generated by said electro-mechanical converting element acts the surface being inclined with respect to an ink flow direction and toward said ink jet nozzle.

Abstract: An arithmetic frequency synthesizer having an accumulator for recursively accumulating a R-bit long input word at a predetermined reference frequency to generate a variable frequency bit clock for a flying spot scanner with a rotating polygon for cyclically scanning an intensity modulated light beam across a photosensitive recording medium includes means for arithmetically modulating the value of the accumulator input word on a scan cycle-by-scan cycle basis for adjusting the bit clock frequency to compensate for polygon motor hunt errors. There is a counter which is incremented or decremented during each scan cycle at a frequency which is scaled to the reference frequency, whereby the count accumulated by the counter during each scan cycle is a measure of the average angular velocity of the polygon during that cycle.

Abstract: Heating devices, in which a semi-conductor pattern is carried on an insulating surface and a pair of spaced apart electrodes are electrically connected to the semi-conductor pattern, are characterized in that the semi-conductor pattern in at least one heating area of the device defines a two-dimensional array of areas that are devoid of semi-conductor material ("voids") within a continuous "mesh" of semi-conductive material. Preferably, the voids are hexagons arranged with the sides of adjacent hexagons parallel to each other, the centers of adjacent hexagons are at the corners of equilateral triangles, and the overall direction of current flow in the device is not parallel to any of the sides of the triangles.

Abstract: A thermal transfer recording apparatus for carrying out recording by driving a thermal head to transfer ink of an ink film in transportation. This apparatus includes a separating device disposed downstream of the thermal head with respect to a direction of ink film movement and spaced from a platen roller. The separating device has an uneven surface.

Abstract: An image recording apparatus comprises: an image recording apparatus comprising: a recording section disposed along a conveyable route of a transfer recording medium having a transfer recording layer whose transfer characteristics change when a first energy and a second energy different from the first energy are applied thereto, the recording section including a first energy applying means for applying the first energy to the transfer recording medium and a second energy applying means for applying the second energy thereto; a transfer means for transferring an image formed on the transfer recording medium in the recording section to a recording medium; and conveying means capable of conveying the transfer recording medium in the direction from the recording section to the transfer section and vice versa.