Ink ribbon cassette

Details Ink ribbon cassette Ink ribbon cassette

2000-10-30

2003-02-18

Hirshfeld, Andrew H. (Department: 2854)

Typewriting machines

Including interposed inking device for record-medium

Means auxiliary to ribbon mechanism

C400S196000, C400S208000, C400S242000

Reexamination Certificate

active

06520697

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a novel ink ribbon cassette. Particularly, the present invention relates to a technique for preventing damage and pollution of a part of an ink ribbon exposed outside of a cassette case housing the ink ribbon.
2. Description of the Related Art
FIG.
7
and
FIG. 8
show an example of a conventional printer and an ink ribbon cassette.
A printer “a” shown in FIG.
7
and
FIG. 8
is a thermal transfer printer, which uses an ink ribbon cassette “b”.
In the ink ribbon cassette “b”, an ink ribbon “d” is wound in a cassette case “c”, and a part of the ink ribbon “d” crosses an opening portion of a recess portion “e” formed in the cassette case “c” to be exposed in the outside.
When the ink ribbon cassette “b” is mounted in the printer “a”, a thermal transfer head “f” provided in the printer “a” is relatively inserted in the recess portion “e” of the ink ribbon cassette “b”.
When printing is started, a printing paper is pressed to the thermal transfer head “f” through the part of the ink ribbon “d” exposed outside of the cassette case “c”, so that ink on the ink ribbon “d” is transferred onto the printing paper by heat of the thermal transfer head “f”.
In the foregoing conventional ink ribbon cassette. “b”, since the part of the ink ribbon “d” is exposed outside of the cassette case “c”, when it is mounted in the printer “a”, the part of the ink ribbon “d” exposed outside of the cassette case “c” must be made to pass a narrow gap between the thermal transfer head “f” and a mechanism for pressing the printing paper to the thermal transfer head “f”, so that there is a fear that the ink ribbon “d” hitches on the thermal transfer head “f” or a mechanical portion of its periphery and is damaged.
SUMMARY OF THE INVENTION
An object of the present invention is therefore to prevent damage and pollution of a part of an ink ribbon exposed outside of a cassette case housing the ink ribbon.
In order to achieve the above object, an ink ribbon cassette of the present invention includes a detachably attached cover body for covering a part of an ink ribbon exposed outside of a cassette case.
Thus, in the ink ribbon cassette of the present invention, since the part of the ink ribbon exposed outside of the cassette case is covered with the cover body, there is no fear that the ink ribbon is damaged.


REFERENCES:
patent: 4350452 (1982-09-01), Dials et al.
patent: 5071272 (1991-12-01), Bell
patent: 5160204 (1992-11-01), Naito et al.
patent: 5186554 (1993-02-01), Mizutani et al.
patent: 5672015 (1997-09-01), Lyerly et al.
patent: 6412996 (2002-07-01), Hamisch
patent: 05-177893 (1993-10-01), None
patent: 11-245469 (1999-09-01), None
Abstract of Japanese Patent Publication No. 05177893; dated Jul. 20, 1993.
Abstract of Japanese Patent Publication No. 11245469; dated Sep. 14, 1999.

Affiliated with

Also associated with

Rating

Ink ribbon cassette does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ink ribbon cassette, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ink ribbon cassette will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3144158