| Patents for B41J 31 - Ink ribbons; Renovating or testing ink ribbons (1,930) |
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| 10/08/1987 | WO1987005862A1 Multi-color ink ribbon and process for its production |
| 10/07/1987 | EP0240112A1 Cartridge for an inked ribbon with a re-inking device |
| 10/06/1987 | US4698268 Heat-sensitive transferring recording medium |
| 09/24/1987 | WO1987005564A1 Thermal transfer recording ribbon |
| 09/16/1987 | EP0237177A1 Cartridge for an inked ribbon with a re-inking pad |
| 09/09/1987 | EP0235939A2 Thermal transfer printing |
| 09/08/1987 | US4692395 Carbon black pigment transferred by heating and pressing a meltable acrylic binder |
| 09/08/1987 | US4692044 Interface resistance and knee voltage enhancement in resistive ribbon printing |
| 09/01/1987 | US4690576 Automatic ribbon re-inker |
| 08/25/1987 | US4688955 Automatic ribbon positioning serial printer |
| 08/25/1987 | CA1225872A1 Color-on-demand ribbon printing |
| 08/18/1987 | US4688057 Heat-sensitive transferring recording medium |
| 08/18/1987 | US4687701 Resin and wax |
| 08/18/1987 | US4687360 Polyesters, polyacrylates, polyacrylamides |
| 08/18/1987 | CA1225616A1 Radiation hardened lift-off correction medium and process of manufacture |
| 08/05/1987 | EP0230992A2 Transfer element and process for printing radiation defined images using said element |
| 08/04/1987 | US4684563 Electrothermal transfer recording sheet |
| 08/04/1987 | US4684272 Spool for correction tape assembly |
| 08/04/1987 | US4684271 Thermal transfer ribbon including an amorphous polymer |
| 07/28/1987 | CA1224736A1 Ribbon cassette with re-inking mechanism |
| 07/21/1987 | US4681796 Thermography |
| 07/15/1987 | EP0228866A1 Printer with ink ribbon system including re-chargeable ink ribbon |
| 07/07/1987 | US4678701 Resistive printing ribbon having improved properties |
| 07/02/1987 | WO1987003845A1 Pressure-sensitive transfer recording medium permitting repeated printing |
| 07/01/1987 | EP0227092A2 Release agent for thermal dye transfer |
| 06/23/1987 | US4675233 Ink transfer material for printer |
| 06/23/1987 | US4675063 Pet support foil and color fusible layer of waxes carbon black,solvent; clear, sharp impages; thermal printing |
| 06/16/1987 | EP0225585A2 Surface layer to reduce contact resistance in resistive printing ribbon |
| 06/16/1987 | EP0225383A1 Method for fabricating thermo-inking ribbons for thermo-transfer printing, and thermo-inking ribbon obtained thereby. |
| 06/16/1987 | EP0225371A1 Apparatus and method for cleaning printer head |
| 06/09/1987 | US4672393 Thermal printer |
| 06/09/1987 | CA1222659A1 Modified resistive layer in thermal transfer medium |
| 05/20/1987 | EP0222240A2 Heat transfer sheet |
| 05/13/1987 | EP0221458A1 Resistive ribbon for use in resistive ribbon thermal transfer printing process |
| 05/13/1987 | EP0153388B1 Ribbon cassette for use in a printer |
| 04/28/1987 | US4661393 Ink compositions and ink sheets for use in heat transfer recording |
| 04/15/1987 | EP0218551A1 Electrothermal printer |
| 04/09/1987 | DE3535876A1 Ink-ribbon cassette for inserted endless ink ribbons |
| 04/07/1987 | CA1220028A1 Ink additives for efficient thermal ink transfer printing processes |
| 03/31/1987 | US4654674 Thermal lift-off correctible record and erase printer |
| 03/31/1987 | US4653947 Reinking device for ribbon cartridge |
| 03/24/1987 | US4652486 Multi-strike ink ribbon |
| 03/24/1987 | US4651943 Spool for correction tape assembly |
| 03/24/1987 | US4651645 Sublimation ink ribbon |
| 03/18/1987 | EP0214298A1 Hot melt copy recording medium |
| 03/17/1987 | US4651167 Printing method |
| 03/12/1987 | DE3530659A1 Ink-ribbon cartridge with a re-inking unit |
| 03/03/1987 | CA1218504A1 Heat-sensitive recording paper and filler therefor |
| 02/24/1987 | US4646108 Method for magnetographic printing, and magnetographic printing machine |
| 02/10/1987 | US4642662 Carbonless paper for use in letter printers |
| 02/10/1987 | CA1217636A Chemical heat amplification in thermal transfer printing |
| 02/04/1987 | EP0210755A2 Inking device for a ribbon in a cassette |
| 02/03/1987 | US4640847 Dispersion of dye-containing microcapsules in wax; painting ink on part of paper |
| 01/27/1987 | US4639742 Method and apparatus for printing an image |
| 01/27/1987 | US4639153 Printing ribbon spool having an ink reservoir and method of making same |
| 01/20/1987 | US4638330 Image forming apparatus |
| 01/20/1987 | US4637744 Actuation device for two typewriter functions |
| 01/20/1987 | US4637743 Matrix printer and inker for indefinite length articles |
| 01/20/1987 | CA1216776A1 Radiation hardened transfer medium and process of manufacture |
| 01/14/1987 | EP0208000A1 Ink ribbon for ceramic printing |
| 01/13/1987 | US4636097 Replaceable inking cartridge with depletion counter |
| 01/07/1987 | EP0207754A2 Heat sensitive transferring recording medium |
| 01/07/1987 | EP0207753A2 Heat sensitive transferring recording medium |
| 01/07/1987 | EP0207752A2 Heat sensitive transferring recording medium |
| 01/07/1987 | EP0207241A1 Fabric ink ribbon |
| 01/06/1987 | US4634629 Lift-off tape usable many times |
| 12/30/1986 | EP0206736A2 Conductive pyrolyzed dielectrics and articles made therefrom |
| 12/30/1986 | EP0206036A2 Thermal ink ribbon and process for making the same |
| 12/18/1986 | WO1986007311A1 Method for fabricating thermo-inking ribbons for thermo-transfer printing, and thermo-inking ribbon obtained thereby |
| 12/16/1986 | US4630075 Cassette-type printing head |
| 12/16/1986 | US4630069 Color thermal transfer recording system and ribbon |
| 12/09/1986 | US4628000 Thermal transfer formulation and medium |
| 12/03/1986 | EP0203714A2 Resistive ribbon system for a colour printer |
| 12/02/1986 | CA1214745A1 Correction tape take-up spool for typewriter |
| 11/26/1986 | EP0203056A2 Color thermal transfer recording system and ribbon |
| 11/26/1986 | EP0202866A1 Printer including means for advancing additional ink ribbon as required |
| 11/26/1986 | CN86100822A Ribbon feed with ink depletion compensation |
| 11/25/1986 | US4624593 Impact printer cleaning system |
| 11/20/1986 | WO1986006683A1 Apparatus and method for cleaning printer head |
| 11/20/1986 | EP0201940A2 Thermal transfer dyesheet |
| 11/18/1986 | CA1214072A1 Ink ribbon cassette provided with an impregnation device |
| 11/05/1986 | EP0200711A2 Thermal transfer recording medium |
| 11/05/1986 | EP0200523A2 Resistive ribbon for use in resistive ribbon thermal transfer printing |
| 10/28/1986 | US4619537 Ribbon feed with ink depletion compensation |
| 10/14/1986 | US4616945 Correction feed mechanism in a correction tape cartridge |
| 10/14/1986 | US4616942 Ribbon cassette with re-inking mechanism |
| 10/14/1986 | CA1212582A1 Resistive ribbon thermal transfer printing system and process |
| 10/14/1986 | CA1212581A1 Thermal transfer printing processes with electroerosion and materials therefor |
| 10/07/1986 | US4616236 Image forming apparatus with color transfer material |
| 09/30/1986 | US4614682 Thermosensitive image transfer recording medium |
| 09/24/1986 | EP0195125A1 Correction tape feed mechanism in a correction tape cartridge |
| 09/17/1986 | EP0194860A2 Heat-sensitive transferring recording medium |
| 09/16/1986 | US4612243 Transferring inks |
| 09/16/1986 | US4612232 Connectors |
| 09/02/1986 | US4609926 Fusion, resin, heaters, tackiness, separators |
| 08/28/1986 | WO1986004859A1 Hot melt copy recording medium |
| 08/27/1986 | EP0192435A2 Thermal transfer dyesheet |
| 08/20/1986 | CN86100098A Correction feed mechanism in a correction tape cartridge |
| 08/19/1986 | US4606955 Conductive pyrolyzed dielectrics and articles made therefrom |
| 08/06/1986 | EP0189770A2 Electrothermic printing device ink ribbon cassette for point matrix sign printing without stroke |