Abstract: In a wire dot printer head of the present invention, an armature is formed by coupling a magnetic circuit formation member having a supported piece with one end inserted into a cavity formed on a surface of a yoke to an arm coupled to a wire. The supported piece of the armature is rotatably supported by a support point, thereby a side surface of the cavity and a side surface of the supported piece, and a bottom surface of the cavity and an end surface of the supported piece can be set in the proximity. Accordingly, magnetic resistance between the magnetic circuit formation member and the yoke can be reduced.

Abstract: A pair of main frames extend in frontward/rearward direction of a printer body. The pair of main frames are pivotally supported on a guide shaft and laterally movable therealong. The main frames are slidingly guided by a guide member through abutment members. The abutment members are supported on the main frames and are rotatably connected to adjusting plates which are also supported on the main frames. The adjusting plates are positionfixably adjustable relative to the main frame for controlling angular orientation of the main frames. Reference holes are defined in the main frames by which a print hammer is supported. The adjusting plates which support the abutment member engaging a guide member are fastened to outer surfaces of the main frames. The adjusting plates have recesses in confronting relation to the respective reference holes.

Abstract: A check encoder (11) for printing of full field MICR (Magnetic Ink Character Recognition) codes on checks, includes a check guide (19) and means for sensing the position of the check (25,27) in the check guide (19). A pair of fixed roller assemblies (29,31), coact with a pair of movable roller assemblies (33,35) to grip the check and move the check under the action of a stepper motor (44) to an initial known position. A hammer (87), mounted in a hammer mount (83) and activated by an electrical solenoid (91) impacts the check against successive selected characters on a font wheel (61) to print the desired MICR code. A computer program, controls the operation of the check positioning, check encoding and check moving operations. When the desired MICR code has been printed on the check, the check is moved out of the encoder (11) by means of the fixed and movable roller assemblies (29,31,33 and 35).

Abstract: A serial printer for use in portable electronic calculators and the like. The printer includes a single printing head having a plurality of characters divided into two groups circumferentially disposed therearound in a predetermined pattern. A first selecting mechanism selects one of the two groups of characters. A second selecting mechanism selects the particular character in the group selected by the first selecting mechanism which is to be printed on a printing tape. The first selecting mechanism may include a helical gear mechanism which selects between the two groups of characters.

Abstract: This disc printer uses a relatively massive, rigid print disc having a flat face on which two sets of raised character fonts are arranged in separate spirals. Advantageously, the inner font set contains machine readable characters which are printable with high resolution, and a second font set arranged so that the characters are upright as they pass a print zone which is vertically offset from the zone in which the high resolution characters are printed. The print disc acts as the platen for printing. With this arrangement, the same print disc can be used to print characters onto a record medium at two different elevations, while maintaining the medium flat, and without the need to transport the medium vertically.