Abstract: A printing device, including: a mechanical energy storage mechanism for storing mechanical energy; and a mechanical energy application mechanism for carrying a sheet and/or printing on the sheet, using the mechanical energy stored.

Abstract: A printing device, including: a mechanical energy storage mechanism for storing mechanical energy; and a mechanical energy application mechanism for carrying a sheet and/or printing on the sheet, using the mechanical energy stored.

Abstract: The present invention relates to an image reading and recording apparatus comprising: a driving source; a recording sheet feeding means for feeding a recording sheet; recording means for recording an image in a predetermined recording area on the recording sheet, supplied by the recording sheet feeding means, and movable to outside of the recording area; document feeding means for feeding a document; reading means movable between the reading position for reading an image on the document, fed by the document feeding means, and the stand by position withdrawn from the reading position; a document feeding force transmitting means for transmitting the driving force of the driving source to the document feeding means; and moving means for moving the reading means to the reading position by the driving force of the driving source at the time the recording means is moved to the outside of the recording area.

Abstract: An image forming machine driving apparatus includes a first one direction power transfer part transferring or cutting off a dynamic power of a driving motor to or from a feeding part according to rotation directions of the driving motor, and a feeding part power-engaging removal device cutting off a jammed paper-removing force not to be transferred to the driving motor when the jammed paper-removing force is applied to the feeding part in a power transfer direction of the first one direction power transfer part, thereby preventing the jammed paper from being torn off or damaged when the paper jammed in the feeding part is removed during supplying or feeding the paper.

Abstract: A mechanism for selectively switching two drive transmission systems by one driving source is provided and a rocking lever which can be rocked between a first drive transmission gear of a first drive transmission system and a first drive transmission gear of a second drive transmission system respectively located on both sides of a drive shaft is provided. A rocking gear located between both drive transmission gears and selectively engaged with both drive transmission gears for transmitting driving force from the driving source is attached to the rocking lever and a locking means mocks the rocking lever in a state that the locking means is engaged with either of the both drive transmission gears. The first drive transmission system and the second drive transmission system are connected to a drive unit normally and reversely rotated. At least one flat side is formed in the above locking means and a flat side which can come in contact with the flat side of the locking means is formed in a fitting part.

Abstract: A paper reversing apparatus of a printer includes a printing medium exhaust path which is connected between an outlet of a printing unit and an outside of a printer main body to guide exhaustion of a printing medium. A guide unit selectively guides a leading edge of the printing medium passing the printing unit to enter one of the printing medium exhaust path or a reversing path, which is branched from the printing medium exhaust path. The printing medium exhausted to the reversing path is reversed and re-supplied to an inlet side of the printing unit. A paper resupply unit is installed between an inlet of the entrance path and an outlet of the reversing path, and is capable of pivoting. Paper detection sensors are installed at the inlet of the entrance path for detecting a type of printing medium entering the entrance path.

Abstract: A process motor (82) provides bidirectional motive force to a printer (50) drive train (80) that selectively engages with multiple self-homing printing functions. A print head (52) is tiltable to a maintenance position and a transfer roller (64) is loadable against a transfer drum (54) by respective missing tooth gear (96, 160) latching mechanisms. A print media pick roller (122) and transfer drum maintaining devices (70, 72) are actuated by spring-wrap clutches (114, 236) that are protected from reverse rotation by a one-way clutch (106). Print media transport rollers (140, 142) are selectively engaged with the one-way clutch by an electro-mechanical clutch (128). A picked and transported print medium (56) receives an ink image from the transfer drum and is stripped therefrom by stripper fingers (66) and directed into media exit rollers (212, 220) for delivery to a media output tray (68).

Abstract: A video printing apparatus and method in which, without interlocking the movement of the printing head with the capstan for carrying the printing paper and the paper feeding mechanism by a cam and linkage mechanism, they are respectively operated by three independent motors. The printer includes a first normally and reversely rotatable DC motor for searching the head of the ink ribbon of the ribbon cassette housed in the printer and for taking up the ink ribbon by the take-up reel base during the printing operation. A second normally and reversely rotatable stepping motor is provided for carrying the printing paper housed in the tray by the capstan and the pinch roller to the printing position and the paper delivering position. A third normally and reversely rotatable DC motor is provided for moving the printing head which subjects the printing paper to the printing processing by pressing the ink ribbon of the ribbon cassette thereon in cooperation with the platen.

Abstract: A heat transfer recording apparatus which is arranged to transfer ink from a heat transfer printing medium to a recording medium by selective application of heat while transporting the heat transfer printing medium and the recording medium. The apparatus is provided with a winding mechanism for winding the heat transfer printing medium, a rewinding mechanism for rewinding the heat transfer printing medium, a transporting mechanism for transporting the heat transfer printing medium and the recording medium, a discharging mechanism for discharging the recording medium, a cutter for cutting the recording medium after completion of image recording, and a driving-force transmitting mechanism for selectively transmitting the driving force of a common drive source to the winding mechanism, the rewinding mechanism, the discharging mechanism, and the cutter.

Abstract: A highly reliable, low-noise, printer for providing good print quality while configured to print and feed paper using a single motor. A cam mechanism is used to provide simplified control over paper feeding operations. A print head carriage is driven by a belt drive gear assembly that also drives the paper feed cam directly. A paper feed roller is rotated by a drive lever assembly which interacts with a first cam profile formed on a surface of the paper feed cam, and the resulting torque is controlled by a contact release mechanism driven by interaction with a second cam profile also formed on a surface of the paper feed cam.

Abstract: A type printer has at least two colors of ink applied alternately in a column direction and is shifted in the column direction for each rotation of the type drum. The type drum is automatically halted once the drum has completed two revolutions. A selection and stop release mechanism control rotation of the type drum, perform type selection and release an automatic stop state of the type drum at the beginning of each print line. A trigger mechanism is synchronized with a pulse generated by a detection mechanism and corresponds to the type position on the type drum. A damper mechanism substantially avoids vibration or rotational fluctuations in the type drum.

Abstract: The apparatus for feeding recording paper according to the present invention includes a platen roller gear, a white roller gear, a forwardly/reversely rotatable motor, a gear train connected to the motor, a relay mechanism for transmitting a force from the gear train to the platen roller gear and white roller gear, and a switching mechanism. The relay mechanism has a driving gear constantly meshed with an output gear of the gear train, and a first driven gear constantly meshed with the driving gear and being capable of revolving around the gear. The relay mechanism has a second driven gear constantly meshed with the driving gear and being capable of revolving around the gear. The relay mechanism has a third driven gear constantly meshed with the first driven gear and being capable of revolving around the first driven gear. The switching mechanism stops movement of the first driven gear and releases the stop of movement.

Abstract: A thermal transfer recording apparatus wherein printing on record paper is performed with the record paper fixed on a platen roller is constituted such that, when the record paper is to be fixed, transmission of power to the platen roller is interrupted and the platen roller is fixedly held at a predetermined position, which enables realization of a transporting system for a transport system of a thermal transfer recording apparatus of the record paper fixing type which system includes a single motor therein.

Abstract: There is disclosed a device for driving a platen and carriage of a printing machine comprises a motor with a motor gear, a platen drive gear and a carriage drive gear, characterized in that the motor gear may be only selectively engaged with one of the platen drive gear or carriage drive gear according to whether the platen or carriage should be moved. Thus, the number of the components relating to the device for driving the platen and carriage is considerably reduced, thus simplifying the construction so as to achieve an economical advantage.

Abstract: A heat transfer recording apparatus for transmitting the ink of a heat transfer medium to a recording medium to thereby record an image on the recording medium has conveying member for conveying the recording medium, winding member for winding the heat transfer medium after image recording, a cutter for cutting the recording medium after image recording, a drive source, first force transmitting member for transmitting the drive force of the drive source to the winding member and second force transmitting member for transmitting the drive force of the drive source to the cutter.

Abstract: There is disclosed an output apparatus which prints and outputs onto an ink ribbon in an electronic typewriter or the like. One motor is commonly used for print paper feed, ribbon feed, and ribbon lift up/down operations. The ribbon feed mechanism is controlled by the heteromorphic or noncircular rotary cam having grooves of different kinds of radii. The ink ribbon feed operation and the correction ribbon feed and lift up/down operations are also performed by the rotary cam. With this apparatus, the ink and correction ribbons can be efficiently used and the operation timing of the carriage can be accurately controlled.

Abstract: A typewriter or similar machine having a platen turnable by means of a ratchet and a line spacing wheel and a carriage movable along the platen by means of a pulling means, on which a typing element or push button is disposed. In accordance with the invention a so-called lift-rotation motor is used for turning the platen, for line spacing and for moving the carriage. Its turning movement is transferred to the carriage by a pulling means. The axial movement of the motors causes the pivoting of a ratchet support on which the spacing ratchet is disposed which turns the platen by means of a toothed spacing wheel. In this way no additional motor for one of the two functions is required. The lift and rotary movement of the motor can take place temporally superimposed. In this way no time delays occur in the course of operation of the typewriter or of a printer.

Abstract: A low cost, compact ink jet recording apparatus effectively uses a single drive source for controlling paper feed and discharge operations. The apparatus comprises a feed mechanism for feeding a sheet to be printed, discharge rollers for discharging the printed sheet, a moving mechanism for engaging and disengaging the discharge rollers, and a single drive source for operating the feed mechanism, the discharge rollers and the moving mechanism. The apparatus increases sheet feeding reliability by disengaging the discharge rollers during printing. Because the sheet feed mechanism, moving mechanism and discharge rollers are operated by a single drive source, a simpler structure is possible.

Abstract: An apparatus for controlling the transmission of power from a motor to a number of devices at selected times utilizes a single trigger mechanism which is operated at predetermined times in an operating cycle. The trigger mechanism controls a plurality of clutch mechanisms which transmit the power to the devices. The clutch mechanisms are locked against operation at times when they are not selected for operation.

Abstract: A small-sized printer has a carriage moving in front of a platen. A print wheel is rotatably mounted on the carriage and coupled to a print wheel gear. The print wheel gear meshes with two worm gears which extend parallel to the platen. A rack-like cam also lies parallel to the platen and is followed by rocking lever which drives a pivoted hammer support. A pivoted hammer on the pivoted support strikes the inside of the print wheel, forcing an inked character to print on the paper, and rolling the character on the paper as the carriage moves. The two worm gears are powered by a motor which acts through a print drive. Their rotation is controlled so that the print wheel is rotated for print character selection by rotating both worm gears to turn the print wheel gear, the carriage is caused to move along the print line by stopping rotation of one of the worm gears, and the carriage is caused to return to its original position by stopping the other worm gear.

Abstract: This specification discloses a recording apparatus for recording an image corresponding to image information on a sheet. More particularly, the specification discloses a recording apparatus for recording an image corresponding to image information on a sheet which apparatus has a head for effecting recording in the form of a dot matrix, a support device for movably supporting the head, a conveying device for conveying the sheet, and a drive source for imparting a drive force for causing the head to scan a plurality of times each time one line is recorded and a drive force for driving the conveying device.

Abstract: A postage meter has a print drum with print wheels which are shiftable to select the value of the postage. The positions of the print wheels are controlled by the positions of associated gears which in turn are controlled by a value setting drive mechanism. A unitary motor effects movement of a pinion from gear to gear and of the individual gears to set the values of the print wheels and also other drive functions of the meter.

Abstract: A printer in which a daisy wheel on a carriage is caused, by a hammer actuating mechanism, to impact against a printing sheet fed by a sheet feed mechanism, so that the sheet is printed with use of a ribbon interposed between the sheet and the wheel. The hammer actuating mechanism, a printing ribbon feed mechanism, a correction ribbon feed mechanism, and a correction ribbon lift mechanism constituting a first driven section, and the sheet feed mechanism constituting a second driven section, are connected to a single DC motor by means of clutch means. In driving the first driven section, the motor is supplied with a predetermined supply voltage from an external power source. In driving the second driven section, the motor is supplied with a supply voltage chopped by chopping means so that the second driven section is driven with a smaller driving force and at a lower rotating speed than the first driven section is.

Abstract: A picture image forming apparatus has a scanner for scanning a manuscript to read an image thereon and a printer. The apparatus is provided with a single source of driving power by which an optical system of the scanner and printing paper in the printer are respectively moved via first and second transmitting mechanisms.

Abstract: A type wheel stack, a typewheel mounting shaft and a motor are arranged on a movable carriage. The type wheel arrangement is rotatable with and axially movable along the shaft. The motor is coupled to the type wheel stack through a clutch and cam mechanism to both rotate and axially shift the type wheels in order to select a desired character to be printed.

Abstract: A manual paper feed mechanism for a printer has a release lever adapted to permit mounting and demounting of a print paper to and from a platen, a paper feed gear for rotating the paper feed roller, a manual knob having a peripheral gear section engageable with the paper feed gear, and a manual lever supporting the manual knob rotatably and swingably towards and away from the paper feed gear. In addition, the mechanism has a first cam portion formed on the manual lever, and a second cam portion engageable with the first cam portion and formed on the release lever, such that the release lever is rotated in response to the operation of the manual knob and the paper feed gear in engagement with each other. This arrangement selectively permits the manual feed of the print paper by the manuel knob.

Abstract: A drive system to raise and transport both print and correction ribbons on typewriters or like machines is powered by a single bidirectional stepping motor. In one direction of rotation the motor acts via a special action clutch to first drive mechanisms for raising a print ribbon and then to establish gear connections for driving mechanisms for transporting the print ribbon. In the other direction, the motor acts to establish gear connections for driving mechanisms for raising and transporting a correction ribbon.

Abstract: The electronic typewriter is of the `daisywheel` type and comprises a microprocessor, a stepping selector motor controlled by a position register for positioning the daisywheel 28, and a support frame for a correction ribbon. The support frame is arranged to oscillate from a down position for viewing purposes to an up position for the correction operation. A tab (104) moves up and down with the frame. The daisywheel rotates together with a sleeve member 97 provided with a stop seat 98. The tab (104), in the up position, urges a tooth (99) on a lever (101) into interference with the sleeve member (97), via a resiliently yielding blade (107) of the lever (101). During the correction cycles, rotary movement of the daisywheel (28) takes place when the support frame and hence the tab (104) is in its own position and thus without any obstacle. In the initialization phase, the microprocessor raises the support frame and tab (104) in advance of a command for complete rotation of the daisywheel (28).

Abstract: Mechanism to raise and transport print and correction ribbons in typewriters and similar machines as a function of the direction of a rotation of a motor. The required motions are brought about by means of a cam wheel containing different cams and by appropriate cam followers, and provision is made to maintain ribbon raised to the typed line level so that during rapid printing only transport steps need to be carried out. It is also possible with the mechanism to effect transport steps of different size, to meet the requirements of the ribbon type used.

Abstract: A drive mechanism for a member to be driven in one direction is disclosed. The mechanism is incorporated in an electronic typewriter and includes a clutch including a clutch spring which provides a driving connection between a small DC motor and the member to be driven of the typewriter. Means is provided which normally holds a driven member of the clutch to a particular angular position and, when the motor is energized, it releases the driven member to allow the driven member to be rotated by the motor. After a cycle of rotation of the driven member, the holding means positively stops rotation of the second element and hence of the driving member and the motor.A new and efficient ribbon feed mechanism is also disclosed which enables selective use of a carbon ribbon and a fabric ink ribbon depending upon a cassette mounted thereon.

Abstract: A multicolor serial printer has a color switching means interposed between an end of a carriage and type wheels having a group of first-color printing types and a group of second-color printing types. The color switching means has first-color and second color printing stepped surfaces selectively movable into confronting relationship with a member of the carriage. When the member of the carriage abuts on and engages in a first-color printing stepped surface or a second-color printing stepped surface during carriage shifting movement, a presser of a hammer means, mounted on the carriage and positioned within the type wheels, is brought into confronting relation to the group of first-color printing types or the group of second-color printing types for printing a desired character in the group in a first or second color.

Abstract: A shorthand machine including an electric drive system to advance the platen. In accordance with the invention, the platen can be advanced in a fully mechanical, conventional mode, fully electric mode, or by a combination of electric and mechanical drives. In the electric or electric/mechanical modes, after the shorthand machine operator makes a key stroke and releases the keys, an electric circuit pulses an electric motor connected to the platen to drive the platen for a predetermined duration of time. Subsequent to the driving pulse, power to the motor is reversed to quickly brake the motor and bring it to a rapid stop. The duration of time that the motor is activated may be varied, varying the amount of advancement of the platen, and thus varying the distance between recorded key strokes for each word or part of word generated by the operator of the shorthand machine.

Abstract: A printer for an electric cash register or the like which performs at least two print related functions. The printer includes a printing head adapted for lateral displacement across a printing paper for effecting printing on the paper. The printer also includes a drive mechanism for effecting the lateral displacement of the printing head and a paper feeding mechanism for advancing the printing paper. The printer may also include a stamping mechanism, an automatic receipt paper cutting mechanism and a journal paper winding mechanism. Each of these mechanisms includes a control lever for actuating the operation thereof. A displaceable selecting lever is arranged and constructed to selectively operate each of the control levers. A single electromagnet controls the operation of the selecting lever.

Abstract: A powered gear driven paper insert and line feed mechanism capable of rotating a platen through one half line spacing increments and which is both power operated and disconnectable for manual operation is disclosed. The platen of the typewriter or printer may be manually rotated using platen or may be electronically rotated by energizing the control magnet, thus engaging the clutch assembly to connect the drive motor to the platen. The clutching assembly is such that two separate clutches are operable to disconnect the platen and gear train from the overall clutch apparatus and also to disconnect the drive motor belt and other related hardware which is driven by the drive motor and belt.

Abstract: A printer having a mechanism for moving a carriage along a platen and a mechanism for rotating a type wheel to select types is disclosed. The printer has switch for selectively transmitting the driving force from a driving source to either carriage or type wheel.

Abstract: A mode selecting device for a tape recording and/or reproducing apparatus includes a plurality of push-button members which are selectively actuable from rest positions to active positions for selecting corresponding operating modes of the apparatus, electrically energizable driving means, such as, solenoids, which are energized in response to the actuation of a selected one of the push-button members to an active position, operating members selectably movable by said driving means from inoperative positions to operative positions in response to the energizing of selected solenoids and being urged to an inoperative position upon deenergizing of such solenoids, a plurality of transmission members coupled with the operating members which are moved in response to the actuation of a respective one of the push-button members for establishing the corresponding operating mode of the apparatus by the movement of the operating member to its operative position, and a release operative, for example, by actuation of a st