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Class Information
Number: 400/702
Name: Typewriting machines > Means auxiliary to typewriting function > Means for cleaning, or facilitating cleaning of, type-face > By contacting type-face (e.g., via type-face cleaner, brush, etc.)
Description: Subject matter wherein the extraneous matter is removed by rubbing a type-face relative to an element that cleans the type-face.

Sub-classes under this class:

Class Number Class Name Patents
400/702.1 Including means for moving brush 8

Patents under this class:

Patent Number Title Of Patent Date Issued
7472982 Ink removal device Jan. 6, 2009
7438489 Coating film transfer tool Oct. 21, 2008
6402406 Recording apparatus and method of removing foreign objects therefor Jun. 11, 2002
5926197 Linerless label web, method of making same and method of cleaning and using a print head Jul. 20, 1999
5875719 Baggage tag with print head cleaning pouch Mar. 2, 1999
5733055 Recording apparatus Mar. 31, 1998
5688060 Thermal transfer printer Nov. 18, 1997
5623876 Apparatus and method for positioning a printing mechanism between stations in a mail handling apparatus Apr. 29, 1997
5563646 Method of cleaning thermal head Oct. 8, 1996
5547917 Method for cleaning a thermal head Aug. 20, 1996
5220355 Resistive sheet thermal transfer printer Jun. 15, 1993
5089897 Facsimile paper supply cartridge system Feb. 18, 1992
5060076 Thermal paper cartridge for facsimile machine Oct. 22, 1991
5057930 Plain paper cartridge for facsimile machine Oct. 15, 1991
4933015 Method of cleaning type elements and print heads Jun. 12, 1990
4707159 Serial printer including a laterally reciprocable recording head, paper bail control, paper detection and feeding means, a multicolor ink ribbon including a head cleaning zone, a ribbon casset Nov. 17, 1987
4624593 Impact printer cleaning system Nov. 25, 1986
4569609 Print ribbon comprising a frictional back layer Feb. 11, 1986
4225251 Electro-mechanical printing apparatus Sep. 30, 1980
4171167 Type head cleaner Oct. 16, 1979
4017933 Typeball cleaning apparatus Apr. 19, 1977

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