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| Number | Title | Issue Date |
| 7168871 | Ribbon takeup device and printer with ribbon takeup device The present invention reduces the peak torque of a motor used in a ribbon takeup mechanism and makes the motor, used for driving, smaller and less costly. A ribbon takeup device includes ratchet wheels (5) provided on ribbon takeup axes (4), a feed cla... | 01/30/2007 |
| 6905268 | Clutch mechanism with one piece plastic spool An ink ribbon cartridge has a take-up spool (130) with an opening having a plurality of drive surfaces (200) and slip surfaces (202). The take up spool is preferably of a one-piece construction. A first spindle with a cantilever member (196 | 06/14/2005 |
| 6183153 | Holder for roll-type print media, roll-type print media cassette, and printing apparatus A holder for roll-type print media and a roll-type print media cassette, for easing replacement of a roll, including a printing apparatus capable of detecting the presence of a roll-type print media. The holder and cassette include supporting means for su... | 02/06/2001 |
| 5713676 | Ink ribbon cassette having flexible spacers Ink ribbon cassette having flexible spacers for insuring that the ratchet of the cassette is engaged by the teeth of the ratchet and pawl of the printer are provided. In particular, the present invention provides flexible spacers for the ink ribbon casset... | 02/03/1998 |
| 5158382 | Integral locking device for a typewriter An integral locking device for a typewriter is used to safeguard against damages and to prevent a correction ribbon from feeding when the typewriter is transported. The integral locking device locks a carrier in a predetermined channel position, locks the... | 10/27/1992 |
| 4968162 | Ribbon forwarding apparatus of impact type printer Disclosed is a ribbon forwarding apparatus of impact type printer for printing on a recording paper wound on a platen by moving printing means disposed at a specified position of a carrier which moves along this platen to the printing position, and striki... | 11/06/1990 |
| 4804283 | Ribbon feed device including tensioning control means The invention provides a ribbon feed device wherein a ribbon take-up mechanism located on a ribbon frame which is mounted for up and down pivotal motion on a carrier and carrying thereon an elongated ribbon along a platen takes up the ribbon in response t... | 02/14/1989 |
| 4741638 | Ink ribbon feeding and lifting device operated by a single reversible motor This application discloses an inked ribbon operation device in a printer in which a carriage having printing means is moved in parallel to the platen to perform printing, a reversible motor is supported on the carriage, a pair of spaced ribbon shafts are ... | 05/03/1988 |
| 4662766 | Ribbon feed increment change mechanism and coded ribbon cassette to establish feed increment Mechanism for automatically adjusting the feed increment according to the type of ribbon in a ribbon cassette is characterized by a pawl and feed ratchet and to means operative by coded features on a cassette, when the cassette is mounted, to control the ... | 05/05/1987 |
| 4657418 | High capacity ribbon supply arrangement A ribbon supply arrangement for a printer is provided with a first ribbon supply portion having supply and take-up reels therein, the ribbon being provided to a second ribbon supply portion which is installed on a carriage of the printer. In one embodimen... | 04/14/1987 |
| 4616945 | Correction feed mechanism in a correction tape cartridge A cartridge 12 for correction tape 22 is disclosed which utilizes a cam follower 40 operated pawl 50/ratchet 52 for feeding of the tape 22, where the pawl 50 is operated as a result of the movement of a cam follower 40 against a cam 40 on the support fram... | 10/14/1986 |
| 4511270 | Apparatus for lifting print and correction ribbons in typewriters or like machines Apparatus for lifting print and correction ribbons in typewriters or printers having a bidirectional motor for driving a lift lever coupled to lift, according to the direction of rotation, either the print or correction ribbon, as required. In order to be... | 04/16/1985 |
| 4498792 | Printing and/or correcting device for printing machines The printing and correcting device is applied to a daisywheel printer and comprises a frame supporting a cartridge for a typing ribbon and a correcting ribbon arranged below the typing ribbon. The frame is able to swing as the result of operation of an el... | 02/12/1985 |
| 4494887 | High speed printer assembly A high speed printer comprises a molded base having a plurality of plastic towers integrally molded thereon. A cylindrical platen is mounted on a first pair of plastic towers and a drive shaft having a helical groove along the length thereof and an eccent... | 01/22/1985 |
| 4427313 | Ribbon cartridge for a typewriter A typewriter ribbon cartridge for a typewriter with a correction key, in which a support body has a first and a second volume opposite one another and separated by a back wall integral with the body and able to house, respectively, a typewriter ribbon and... | 01/24/1984 |
| 4411542 | Error ribbon elevation and transport mechanism for typewriters and similar machines Disclosed is a mechanism so arranged that a relatively weak power source can be employed to effect error ribbon elevation and incremental feed. A bridge which is pivotably mounted on a frame carries a rotatably mounted ratchet and a pivotably mounted pawl... | 10/25/1983 |
| 4411541 | Ribbon feed and elevating mechanism for typewriters or similar machines A ribbon feed and elevating mechanism is so constructed that active parts for incrementally feeding and for elevating a ribbon from a rest position into one or more working positions form one structural unit mounted on a common shaft thereby providing a c... | 10/25/1983 |
| 4398838 | Typewriter ribbon lifting and transporting device The invention is a mechanism for raising and lowering the ribbon in typewriters to make typed text visible. No separate drive such as a motor or magnet is required to raise the ribbon. The ribbon is raised by means of a spring-loaded bar prior to each cha... | 08/16/1983 |
| 4395149 | Ribbon drive mechanism A ribbon drive mechanism for a typewriter or similar machine in which the supply spool and a first ribbon guide are fixed with respect to the machine frame, and the take-up spool and a second ribbon guide are vertically moveable with respect to the machin... | 07/26/1983 |
| 4381155 | Inked ribbon advance and reverse mechanism The present invention is an improved inked ribbon advance and reverse mechanism for use in a multiple print station printing apparatus. The improved inked ribbon advance and reverse mechanism includes a first ribbon spool and a second ribbon spool onto an... | 04/26/1983 |
| 4329072 | Ribbon feed and lift mechanism for a typewriter In a daisy wheel or rotary print wheel typewriter, a single motor (stepper motor) is employed to accomplish both ribbon lift and feed for typewriter ribbon and correction ribbon loaded in a cartridge assembly. A single motor drive moves a cartridge assemb... | 05/11/1982 |
| 4260271 | Inked ribbon advancement mechanism The present invention is an inked ribbon advancement mechanism which is used in combination with a printer having a movable print head. The printer includes a frame and a print head mechanically coupled to the frame so that it travels laterally along the ... | 04/07/1981 |
| 4247210 | Ribbon feed and lift mechanism for a typewriter In a daisy wheel or rotary print wheel typewriter, a single motor is employed to accomplish both ribbon lift and feed for typewriter ribbon and correction ribbon loaded in a cartridge assembly. A single motor drive moves the cartridge assembly support abo... | 01/27/1981 |
| 4242005 | Inked ribbon advance and reverse mechanism including a pawl having different size teeth The present invention is an improved pawl for use in combination with an inked ribbon advance and reverse mechanism which includes a plate member, a pair of ribbon spools which are disposed on the surface of the plate member and are mechanically coupled t... | 12/30/1980 |
| 4214838 | Advance and transfer mechanism for inked ribbon or the like Two arms carry two pawls each. One pawl of each arm engages one ratchet wheel and, alternately, the other pawl of each arm engages another ratchet wheel when the arms are moved at the end of the travel of a ribbon. The ratchet wheels carry ribbon spools. ... | 07/29/1980 |
| 4203677 | Printer ribbon lift assembly An assembly for elevating the print ribbon and the erase ribbon of an impact printer is disclosed. In their respective rest positions, the ribbons are positioned in vertical relationship to one another and in one embodiment the ribbons are in the same pla... | 05/20/1980 |
| 4167345 | Printing apparatus with selectively movable printing heads Apparatus for printing characters on at least one data carrier comprising a printing head movable along the data carrier, a line advance device for feeding the data carrier substantially perpendicular to the moving direction of the printing head, an ink r... | 09/11/1979 |
| 4141662 | Recording ribbon mechanism for instrument recorders To simplify transport of a recording ribbon, such as an inked ribbon, making an impression record on a recording strip of a chart-type instrument recorder, the ribbon is formed as a closed, endless loop which is guided in a path adjacent the printing mech... | 02/27/1979 |
| 4093060 | Typewriter ribbon feed device A typewriter ribbon feed device having a transport lever provided at one end with a transport pawl and at the other end with a fork guide engaged by a pin fixed to a driving lever while at one end of the driving lever a suspension hole for a traction bar ... | 06/06/1978 |
