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Class Information
Number: 400/249
Name: Typewriting machines > Including interposed inking device (e.g., ribbon) for record-medium > Means auxiliary to ribbon mechanism (e.g., shield, guide, etc.) > Including indicator for depletion of ribbon (e.g., bell, sign, etc.)
Description: Subject matter wherein the ribbon* is supplied to the print-point* from a supply of ribbon, and wherein significance is attributed to a device for informing the typist that the supply has been exhausted.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8137015 Image forming method for determining a position of an ink ribbon with a boundary line Mar. 20, 2012
RE42088 Printer Feb. 1, 2011
7408663 Communication system Aug. 5, 2008
7390134 Ribbon identification Jun. 24, 2008
7390135 Ribbon identification Jun. 24, 2008
7265771 Printer capable of detecting status of unutilized ribbon Sep. 4, 2007
7252443 Printer capable of detecting status of unutilized ribbon Aug. 7, 2007
7070348 Roll sheet holder and tape printer Jul. 4, 2006
7018118 Hub and detectable spool Mar. 28, 2006
6904842 Coded ribbon cartridge, decoder, and ribbon ink capacity indicator with LCD display Jun. 14, 2005
6798434 Printing device Sep. 28, 2004
6786660 Detectable spool and associated hub Sep. 7, 2004
6767147 Coded ribbon cartridge, decoder, and ribbon ink capacity indicator with LCD display Jul. 27, 2004
6734888 Apparatus and method for determining mismatch involving availability of dye donor and receiver supplies in thermal printer May. 11, 2004
6614461 Printer Sep. 2, 2003
6195111 Cassette casing for thermal transfer printing dye ribbon Feb. 27, 2001
6152625 Sensor hub for a print ribbon supply roll and method Nov. 28, 2000
6149326 Hot stamper foil tape cartridge with reflector pads Nov. 21, 2000
6141029 Method and thermal printing apparatus for identifying an end of an inking ribbon Oct. 31, 2000
6092943 Apparatus and method for measuring printing paper quantity and warning printing part exchange time Jul. 25, 2000
6076982 Ink ribbon assembly Jun. 20, 2000
6059469 Printer device and printing method May. 9, 2000
5887993 Tape printing device and tape cartridge used therein Mar. 30, 1999
5836703 Printer system with automatic ink ribbon cassette exchange function Nov. 17, 1998
5813774 Ticket-printing device and ribbon assembly adapted for easy ribbon replacement and mode setting Sep. 29, 1998
5807001 End of ribbon indicator for a cassette Sep. 15, 1998
5755519 Printer ribbon identification sensor May. 26, 1998
5743664 Thermal color printer adapted to detect end of dye donor web by use of light beams and light reflective spindle Apr. 28, 1998
5713678 Low-paper sensing apparatus Feb. 3, 1998
5634731 Method and apparatus for thermal transfer printing Jun. 3, 1997
5605405 Ink ribbon for a printer, typewriter or the like Feb. 25, 1997
5593237 Printing apparatus and ink ribbon cassette therefor Jan. 14, 1997
5567066 Nonimpact printer with read and write systems for monitoring ribbon usage Oct. 22, 1996
5538351 Thermal transfer printer and ribbon change structure Jul. 23, 1996
5529410 Method and apparatus for controlling tension on a sheet material in a reel-to-reel transport system Jun. 25, 1996
5518328 Tape unit May. 21, 1996
5499878 Device for modifying the tension of a ribbon wound on a take-up reel in the event of the clinging of the ribbon to a printing medium Mar. 19, 1996
5480238 Thermal transfer printer Jan. 2, 1996
5455617 Thermal printer supply having non-volatile memory Oct. 3, 1995
5445464 Ink ribbon usage in a multicolor image recording apparatus Aug. 29, 1995
5393149 Color video printer and an ink ribbon cartridge used therein Feb. 28, 1995
5385416 Device for identifying an ink ribbon cartridge used in a printer Jan. 31, 1995
5366307 Printing control system and method for scalably controlling print energy and cycle time Nov. 22, 1994
5365312 Arrangement for printer equipment for monitoring reservoirs that contain printing medium Nov. 15, 1994
5352049 Means for holding thermal transfer printing ink-sheet in cartridge Oct. 4, 1994
5344244 Printer and ink ribbon cartridge having color block detection means Sep. 6, 1994
5340223 Multi-strike ink ribbon feed control Aug. 23, 1994
5333960 Device and method for displaying a residual amount of cartridge ribbon for a color video printer Aug. 2, 1994
5326182 Ribbon roll drive Jul. 5, 1994
5318369 Processing system with printer using exchangeable ink ribbon Jun. 7, 1994

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