| Patents for B41J 31 - Ink ribbons; Renovating or testing ink ribbons (1,930) |
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| 03/30/1982 | US4322172 Replaceable reinker for an inked ribbon cartridge |
| 03/24/1982 | EP0047845A2 Correction ink ribbon |
| 03/23/1982 | US4321286 Process for producing transfer ribbons |
| 03/16/1982 | US4320170 Polyurethane ribbon for non-impact printing |
| 03/10/1982 | EP0046879A2 Daisy wheel with ink disk |
| 03/02/1982 | US4317637 Typewriter ribbon including a correction strip |
| 02/23/1982 | CA1118637A1 Apparatus for re-inking a ribbon in a thermal transfer printing system |
| 01/13/1982 | EP0043433A1 Web cartridge with a wrap spring for preventing voids and wrinkles in the spool |
| 01/12/1982 | US4310258 Ink ribbon lubrication by liquid silicone oil |
| 01/06/1982 | EP0042954A2 Correctable thermal transfer printing ribbon |
| 01/05/1982 | US4309117 Ribbon configuration for resistive ribbon thermal transfer printing |
| 12/29/1981 | US4308318 Rub resistant ribbon for non-impact printing |
| 12/09/1981 | EP0041099A1 A ribbon for non-impact printing |
| 12/08/1981 | US4304496 Ribbon guiding and re-inking means for data printers and the like |
| 12/08/1981 | CA1113782A1 Thermal transfer color printer |
| 12/01/1981 | CA1113243A1 Chemically reactive recording medium |
| 11/25/1981 | EP0040312A1 Replaceable inking cartridge |
| 11/17/1981 | US4300847 Teleprinter having single belt carriage and ribbon drive system |
| 10/21/1981 | EP0038215A2 Actuation device for two typewriter functions |
| 10/14/1981 | EP0037464A2 Process for selectively reinking used thermal transfer printing ribbon and method for making a colloidal dispersion for use in said process |
| 10/07/1981 | EP0036936A1 Electro-thermal printing ribbons |
| 09/29/1981 | US4291994 Tear resistant ribbon for non-impact printing |
| 09/22/1981 | CA1109332A1 Electrothermal printing apparatus |
| 09/15/1981 | US4289670 Pressure sensitive correction composition and method of use |
| 09/15/1981 | US4289666 Adhesive correction composition and method of use |
| 08/25/1981 | US4285604 Ribbon shield for printer |
| 08/12/1981 | EP0033364A1 A ribbon for non-impact printing |
| 07/29/1981 | EP0032539A2 Lifting correction element for printed characters |
| 07/22/1981 | EP0032181A2 Lifting correction element for printed characters |
| 07/15/1981 | EP0031854A1 Ink ribbon cartridge with a reinking device and method of manufacturing this cartridge |
| 07/08/1981 | EP0031453A1 Ribbons for thermal transfer printing and methods of printing using such ribbons |
| 07/07/1981 | US4277187 Ribbon locating means |
| 06/30/1981 | CA1103924A1 Rub resistant ribbon for non-impact printing |
| 06/16/1981 | US4273453 Selectively engageable ribbon re-inking device for ink ribbon cartridge |
| 06/02/1981 | CA1102294A1 Ribbon cartridge having a convolute-forming roller |
| 05/27/1981 | EP0029313A2 Thermal printing device |
| 05/26/1981 | US4269892 Polyester ribbon for non-impact printing |
| 05/19/1981 | US4268368 Electrophoretical method for selectively reinking resistive ribbon thermal transfer printing ribbons |
| 05/05/1981 | US4265553 Ribbon threading assembly for an impact printer |
| 04/07/1981 | US4260664 Transfer elements and process |
| 03/03/1981 | US4253775 Apparatus for re-inking a ribbon in a thermal transfer printing system |
| 02/17/1981 | US4251276 Thermally activated ink and transfer method |
| 02/04/1981 | EP0023424A2 Ribbon locating bridge and supply assembly |
| 01/07/1981 | EP0021098A2 Apparatus for re-inking a ribbon in a thermal transfer printing system |
| 12/23/1980 | US4240757 Fanfold replacement ribbon package |
| 12/09/1980 | US4238549 Fluorescent dye, thermoplastic binder, wax, plasticizer, solvent |
| 12/02/1980 | US4236834 Electrothermal printing apparatus |
| 10/21/1980 | CA1087932A1 Pressure correction materials and method for producing same |
| 10/14/1980 | US4228387 Variable reluctance stepper motor drive and method of operation as a DC brushless motor |
| 10/01/1980 | EP0016320A2 A ribbon for non-impact electrothermic printing |
| 09/16/1980 | CA1085801A1 Typewriter cartridge and feed mechanism therefore |
| 09/09/1980 | CA1085237A1 Ribbon for non-impact printing |
| 09/02/1980 | CA1084773A1 Tracking apparatus for inked ribbon |
| 08/12/1980 | US4217388 Pressure-sensitive transfer elements and process |
| 07/22/1980 | US4213715 Ink ribbon cartridge having a replaceable ribbon magazine |
| 07/22/1980 | US4213419 Apparatus for cleaning and re-inking printer ribbons |
| 05/20/1980 | US4203676 Ribbon mounting apparatus |
| 04/16/1980 | EP0009595A1 Electrothermal printing apparatus |
| 04/01/1980 | US4195937 Electroresistive printing apparatus |
| 03/18/1980 | CA1073794A1 Printer ribbon substrates |
| 03/04/1980 | US4191482 Printing ribbon package having ink absorbing means |
| 03/04/1980 | CA1072936A1 Printer ribbon cartridge |
| 02/26/1980 | US4190847 Stray ink collector for impact printer |
| 11/27/1979 | US4175877 Ribbon cartridge having a convolute-forming roller |
| 10/30/1979 | US4172605 Chemically reactive recording medium |
| 09/19/1979 | EP0004047A1 Ribbon cartridge |
| 08/21/1979 | US4165188 Ribbon mask and guide for dot matrix impact printers |
| 08/21/1979 | US4164911 Apparatus for re-inking printing ribbons |
| 08/07/1979 | CA1059740A1 Method for inking preassembled ribbon cartridges |
| 07/17/1979 | US4161551 Adhesively correctable transfer medium with delayed alteration resistance characteristics |
| 06/19/1979 | CA1056655A1 Pressure-adhesive sheet materials, complementary transfer materials and methods |
| 05/29/1979 | US4156572 Inked ribbon cartridge for a calculating or other office machine |
| 05/08/1979 | US4153378 Re-inking and ventilation control for inked ribbon cassette |
| 05/01/1979 | CA1053407A1 Ink transfer member |
| 04/17/1979 | CA1052722A1 Automatic function mechanism for typewriters |
| 04/17/1979 | CA1052721A1 Automatic single and repeat function mechanism for typewriters |
| 04/17/1979 | CA1052637A1 Transfer elements and process |
| 04/17/1979 | CA1052561A1 Ribbon re-inking apparatus |
| 04/17/1979 | CA1052560A1 Reinking apparatus |
| 04/03/1979 | CA1051810A1 Ribbon cartridge for automatic typewriter function |
| 03/27/1979 | CA1051364A1 Ribbon cartridge for automatic typewriter function |
| 03/13/1979 | CA1050465A1 Automatic function mechanism for typewriters |
| 03/13/1979 | CA1050464A1 Ribbon cartridge for automatic typewriter function |
| 03/13/1979 | CA1050463A1 Automatic function mechanism for typewriters |
| 12/19/1978 | CA1044535A1 Transfer elements from porous alkenyl aromatic films |
| 12/12/1978 | CA1044084A1 Transfer elements and method of preparing same |
| 11/28/1978 | US4127337 Business machine inking device and method of inking business machines |
| 11/21/1978 | US4126715 Method and apparatus for reinking typing ribbon cartridges |
| 11/21/1978 | CA1042825A1 Ribbon spool with built-in bifacial re-hinker |
| 10/31/1978 | US4123569 Direct ribbon inking by gravure |
| 10/10/1978 | US4119385 Ribbon changing mechanism for a typewriter |
| 09/19/1978 | US4115012 Printing ribbon spool |
| 09/12/1978 | US4113392 Printing ribbon |
| 09/05/1978 | US4112178 Aqueous polyurethane undercoats |
| 07/25/1978 | US4103066 Polycarbonate ribbon for non-impact printing |
| 06/06/1978 | US4093772 Pressure-activated and non-tacky lift-off element and process therefor |
| 06/06/1978 | US4093061 Disc ink ribbon |
| 05/30/1978 | US4092456 Pressure sensitive, ink releasing, activating a blowing agent, evaporation, impregnation |
| 05/30/1978 | US4091914 Wear-activated ribbon reinker |
| 05/09/1978 | US4088800 Method for cleaning and re-inking printer ribbons |