Browse Prior Art Database

Re-inking Type Ink Ribbon Cartridge

IP.com Disclosure Number: IPCOM000121853D
Original Publication Date: 1991-Oct-01
Included in the Prior Art Database: 2005-Apr-03
Document File: 2 page(s) / 65K

Publishing Venue

IBM

Related People

Kanno, T: AUTHOR

Abstract

Described herein is an automatic setting mechanism of a re-inking roll, which is assembled in a re-inking-type ink ribbon cartridge from a "shipping" position to a "print" position when the printer starts to print. These two positions are defined by whether or not the re-inking roll contacts the ink roll. The mechanism prevents non-uniform print density at the beginning of printing caused by excessive ink contained at the area of the ribbon fabric where the re-inking roll contacts the ribbon long before printing. This problem has frequently happened in the case of conventional ribbon cartridges in which the re-inking roll always contacts the ink roll while the cartridge is stored or shipped.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 63% of the total text.

Re-inking Type Ink Ribbon Cartridge

      Described herein is an automatic setting mechanism of a
re-inking roll, which is assembled in a re-inking-type ink ribbon
cartridge from a "shipping" position to a "print" position when the
printer starts to print. These two positions are defined by whether
or not the re-inking roll contacts the ink roll. The mechanism
prevents non-uniform print density at the beginning of printing
caused by excessive ink contained at the area of the ribbon fabric
where the re-inking roll contacts the ribbon long before printing.
This problem has frequently happened in the case of conventional
ribbon cartridges in which the re-inking roll always contacts the ink
roll while the cartridge is stored or shipped.

      The mechanism will be well understood with reference to the
figure which schematically shows the structure of a new ink ribbon
cartridge and how the mechanism works in it. The ink ribbon cartridge
includes an ink ribbon fabric 1 which is endless and sometimes
seamless, an ink roll 2 which is made with elastic, porous material,
such as foam rubber, a re-inking roll 3 whose shaft can move along a
slot 4 of an upper cover 5 and a slot 6 of a bottom cover
7, a drive roller 8 and a pinch roller 9 which advances the ribbon
fabric 1, a back tension plate 10 for keeping the ribbon tension to
make ribbon advance smooth at a printhead and to generate the driving
force of the re-inking roll 3. The key of the mechanism is the
combination of a...