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Stuffed ribbon cartridge

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Publication number
US3814231A
US3814231A US35405673A US3814231A US 3814231 A US3814231 A US 3814231A US 35405673 A US35405673 A US 35405673A US 3814231 A US3814231 A US 3814231A
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US
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Grant
Patent type
Prior art keywords
ribbon
storage
chamber
shroud
cartridge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
S Cappotto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smith Corona Corp
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SCM Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J33/00Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
    • B41J33/02Ribbon arrangements
    • B41J33/10Arrangements of endless ribbons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J32/00Ink-ribbon cartridges
    • B41J32/02Ink-ribbon cartridges for endless ribbons

Abstract

A shroud is positioned near the exit area of a stuffed ribbon cartridge for a typewriter or similar machine to prevent more than one strand of a ribbon from being withdrawn from the storage chamber of the cartridge at a time. The shroud is a ridge on the floor of the storage chamber with the distance from the top of the ridge to the ceiling less than the width of the ribbon. The shroud is formed around the exit area in an arc shaped so that the single strand of ribbon being withdrawn from the storage chamber will cross the shroud substantially at right angles to the shroud from any direction that it is pulled from inside the storage chamber.

Description

3, 14,231 June 4, 1974 OTHER PUBLICATIONS IBM Technical Disclosure Bulletin, Ribbon Cartridge and Drive Assembly, Wanek, Vol. 11, No. 4, Sept.

1968, p. 377. IBM Technical Disclosure Bulletin, Ribbon Cartridge, Gardineer, Vol.

Endless Fold 15 No. 2, July ABSTRACT A shroud is positioned near the exit area of a stuffed ribbon cartridge for a typewriter or similar machine to prevent more than one strand of a ribbon from being withdrawn from the storage chamber of the cartridge at a time. The shroud is a ridge on the floor of the storage-chamber with the distance from the top of the ridge to the ceiling less than the width of the ribbon.

The shroud is formed around the exit area in an arc shaped so that the single strand of ribbon being with- I 12 Claims, 4 Drawing Figures drawn from the storage chamber will cross the shroud substantially at right angles to the shroud from any direction that it is pulled from inside the'storage cham- 197/168, 197/151 B4lj 33/10 PATENTS United States Patent 1191 Cappotto [5 STUFFEDRIBBON CARTRIDGE Inventor: Samuel D. Cappotto, Syracuse, NY.

Assignee: SCM Corporation, New York, NY.

[22] Filed: Apr. 24, 1973 App]. No.: 354,056

Int Cl [SI] [58] Field of Search References Cited UNITED STATES a b 8888 1 88 88 6666W5 66 6.6 mmmmsm mm mm a 9999 9HHH92 S99 3 1111 177712 N11. 999 uun "111 n n O H u an .1... u H.mmm" "M n mm mm u n u H n U wm nuwmmw mm u..un afleu unnnmmtt m Amm mmfl mne dn mm mm uminn nfl nn m wmmwn r BB fl slt. S d.1 t and ofr dd nTee m u hzmnnk o JBRKHRAALMB GG 54340022233 A33 90 57777777 89999999999 99 HHHHHHHHHHHNH/ 5768 522849 00 1 E 797 0 7708 073 t v ..F 3326 29 4482 2 v 1 v 333 PATENTED N 4|974 LET Z STUFFED RIBBON CARTRIDGE BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to stuffed ribbon cartridges and more particularly to an improved stuffed ribbon cartridge for machines such as typewriters.

2. Description of the Prior Art Typewriter stuffed ribbon cartridges of the type disclosed in the copending US. Pat. application Ser. No. 288,830 of Samuel D. Cappotto etal., filed Sept. 13, I972, provide a new way for quickly changing the ribbon in a typewriter without ever having to manipulate or touch the ribbon. Projections positioned along the walls of the exit ramp prevent-the flow of convolutions of ribbon from the storage chamber. However, because of the widely varying coefficients of friction of typewriter ribbon even from the same supplier, sometimes the exiting strand of ribbon will drag convolutions of ribbon along with it into the exit area. If enough convolutions of ribbon are dragged into the exit area, the exit area can become clogged. Because of the increased tension on the ribbon caused by the clogged exit area, the ribbon can break or become frayed along its heatsealed top edge and break later. Using eight yards of ribbon instead of the maximum capacity of ten yards to decrease the pressure in the storage chamber does not eliminate clogging completely.

SUMMARY OF THE INVENTION It is, therefore, a primary object of the invention to provide an improved stuffed ribbon cartridge for a ribbon in which the ribbon cannot clog the exit from the storage chamber.

Another object of the invention is to provide a stuffed ribbon cartridge for a ribbon in accordance with the foregoing object in which the ribbonwill not break.

Another object of the invention is to provide a stuffed ribbon cartridge for a ribbon in accordance with the foregoing objects in which the ribbon will not fray.

Another object of the invention is to provide a stuffed ribbon cartridge for a ribbon in accordance with the foregoing objects capable of using all kinds of ribbons such as ribbons having widely varying coefficients of friction, widely varying kinds and amounts of ink, and widely varying kinds and qualities of material.

Another object of the invention is to provide a stuffed ribbon cartridge for a ribbon in accordance with the foregoing objects capable of storing a maximum length of the ribbon.

Another object of the invention is to provide a stuffed ribbon cartridge for a ribbon in accordance with the foregoing objects in which a single strand of the ribbon will always exit from the storage chamber with very little disturbance of other portions of the rib bon in the storage chamber.

Another object of the invention is to provide a stuffed ribbon cartridge for a ribbon having an exit shroud in accordance with the foregoing objects in which a single strand of the ribbon will always exit from the storage chamber substantially radial to or at right angles to the shroud.

In order to accomplish the objects of the invention, a shroud is positioned near the exit area of the cartridge. The shroud is a ridge on the floor of the storage chamber. The distance from the top of the shroud to the ceiling of the storage chamber is less than the width of the ribbon so that only one strand of the ribbon will be withdrawn from the storage chamber at a time. The shroud is formed around the exit roller in an are shaped so that the single strand of ribbon being withdrawn from the storage'chamber will cross the shroud substantially at right angles to the shroud from any direction that it is pulled from inside the storage chamber so that none of the ribbon remaining in the storage chamber will be greatly disturbed. Convolutions of ribbon in the storage chamber remain poised in an are around the shroud. Stuffed ribbon cartridges incorporating the invention have used ribbons with high coefficients of friction and the maximum length of ten yards of ribbon without clogging the exit areas and without fraying.

Other objects and a fuller understanding of the invention can be had by referring to the description and claims taken in conjunction with the accompanying drawing.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a perspective view, partially broken away, of a stuffed ribbon cartridge embodying the invention.

FIG. 2 is a detail view of the cartridge of FIG. 1 with the ribbon extended around the exit roller.

FIG. 3 is a section view taken substantially along with line 3 3 in FIG. 2.

FIG. 4 is a section view taken substantially along the line 4 4 in FIG. 2.

DESCRIPTION OF THE PREFERRED EMBODIMENT With reference to FIG. 1 of the drawing, the invention is shown embodied in a stuffed ribbon cartridge for a machine such as a typewriter. The typewriter is not shown except for part of a cartridge support 10 and part of a feed mechanism 12. The feed mechanism I2 has a gear 14 for interaction with the cartridge as hereinafter described.

The cartridge is of the type disclosed in the copending US. Pat. application Ser. No. 288,830 of Samuel D. Cappotto et al., filed Sept. 13, 1972. The cartridge has an arm 16 for guiding an endless loop of ribbon 18 toward a print point, which is not shown, of the typewriter. The arm 16 is connected to a housing 20.

The housing 20 includes a base 22 and a cover 24 connected to the base 22. A platform 26 is mounted on the base 22 to provide a storage chamber, indicated generally at 28, for the ribbon 18. The platform 26 has a wall 30 and 32 around most of its periphery to confine the ribbon 18 in the storage chamber 28. The inner surface of the platform 26 serves as a floor 34 for the storage chamber 28, and the inner surface of the top of the cover 24 serves as a ceiling 36. The distance between the floor 34 and the ceiling 36 is only slightly greater than the width of the ribbon 18.

The housing 20 also has an entrance area, indicated generally at 38, and an exit area, indicated generally at 40. The entrance area 38 has a knurled feed roller 42 and an integral gear 44 rotatably mounted on the housing 20 with the gear 44 in mesh with the gear 14 of the feed mechanism 12 of the typewriter when the cartridge is in operating position on the support 10 on the typewriter. A knurled idler roller 46 is rotatably mounted on a bell crank 48 that is pivotally mounted on the housing 20. The idler roller 46 is biased in a counterclockwise direction against the feed roller 42 by a spring lever 50 on the bell crank 48. The idler roller 46 squeezes a strand 18a of the ribbon l8 entering the storage chamber 28 from the arm 16 against the feed roller 42.

The exit area 40 has a barrel-shaped exit roller 52 rotatably mounted on a vertical pin 54 on the floor 34 of the platform 26. As shown in FIG. 2, the roller 52 is used to change the direction of a strand 18b of the ribbon 18 being withdrawn from the storage chamber 28. After passing the roller 52, the strand 18b of ribbon 18 traverses an exit ramp, indicated generally at 56, on its way to the arm 16. Projections 58 are formed along the sides of the exit ramp 56 to guide the exiting strand 18b of ribbon 18.

In order to prevent convolutions of ribbon 18 from being pulled out of the storage chamber 28 by the exiting strand 18b ribbon 18, a shroud 60 is formed around the exit roller 52. The shroud 60 is a ridge on the floor 34 of the storage chamber 28. As shown in FIGS 3 and 4, the distance from the top of the shroud 60 to the ceiling 36 of the storage chamber 28 is less than the width of the ribbon 18. In one embodiment of the invention, the height of the storage chamber 28 is 035510.010 inch, the height of the shroud 60 is 007010.005 inch, and the width of the ribbon l8 varies from 0.305 to 0.320 inch. At the worst condition, the distance (0.365 0.065 0.300 inch) from the top of the shroud 60 to the ceiling 36 of the storage chamber 28 is 0.005 inch less than the minimum width of the ribbon 18. The foregoing dimensions are, of course, only an example, and numerous variations can be used without departing from the invention.

The shroud 60 also has an inclined surface 62 sloping toward the storage chamber 28 at a 20 angle. The angle also is only an example. However, if the angle of the inclined surface 62 is too gradual, the shroud 60 has to be very wide and thus will take up too much space from the storage chamber 28. If the angle is too steep, convolutions of ribbon 18 in the storage chamber 28 will be too tightly packed around the shroud 60. It is best to have a moderate angle so that each convolution of ribbon 18 will find its own level on the shroud 60 and not all of them will be at the same level. As shown in F168. 1 and 2, the shroud 60 is formed around the exit roller 52 in an arc shaped so that the strand 18b of ribbon 18 being withdrawn from the storage chamber 28 will cross the shroud 60 substantially radial to or at right angles to the shroud 60 no matter what direction it is pulled from inside the storage chamber 28 so that none of the ribbon 18 remaining in the storage chamber 28 will be greatly disturbed.

In operation, with the cartridge in operating position on the support 10 on the typewriter, the gear 44 of the feed roller 42 is in mesh with the gear 14 of the feed mechansim 12 of the typewriter as shown in FIG. 1. After each impact at the print point of a type character, not shown, the feed roller 42 pulls the strand 18a of ribbon 18 one character width from the arm 16 and stuffs the strand 18a, of ribbon 18 into the storage chamber 28 of the housing 20. The strand 18a of ribbon 18 forms the convolutions of ribbon 18 in the storage chamber 28. The convolutions of ribbon 18 form an arcuate front with the crest of the are pointing toward the exit area 40.

At the same time that the strand 18a of ribbon 18 is being fed into the storage chamber 28 from the arm 16, the strand 18b of ribbon 18 is being pulled from the storage chamber 28 to the arm 16 at the exit area 40. The strand 18b of ribbon 18 is pulled across the shroud substantially radial to or at right angles to the shroud 60 no matter what direction it is pulled from inside the storage chamber 28. Since the strand 18b of ribbon 18 crosses the shroud 60 substantially at right angles to the shroud 60, the convolutions of ribbon 18 remaining in the storage chamber 28 are only slightly disturbed by the withdrawal of the strand 18b of ribbon 18. ln crossing the shroud 60, the strand 18b of ribbon 18 might collapse to conform to the cross section of the shroud 60 as shown in FIG. 3 or might warp or tilt slightly. Since the convolutions of ribbon 18 remaining in the storage chamber 28 have no tensile pull to cross the shroud 60 and the frictional force of the exiting strand 18b of ribbon 18 is insufficient to pull them across the shroud 60, they remain poised in an arc around the shroud 60, each finding its own level on the inclined surface 62 of the shroud 60. Tests conducted using cartridges with the shroud 60 have shown very favorable results. The cartridges have used ribbons 18 with high coefficients of friction and the maximum length of ten yards of ribbon 18 without clogging the exit area 40 and without fraying.

Although the invention has been described in its preferred form with a certain degree of particularity, it is understood that the present disclosure of the preferred form has been made by way of example and that numerous changes in the details of construction and the combination and arrangement of parts can be resorted to without departing from the spirit and the scope of the invention.

Having thus set forth the nature of the invention, what is claimed is:

1. An improved stuffed ribbon cartridge for a ribbon, the cartridge having a storage chamber for the ribbon with a floor and a ceiling substantially perpendicular to and farther apart than the width of the ribbon and an exit area for a single strand of the ribbon to exit from the storage chamber, wherein the improvement comprisesa shroud on the floor of the storage chamber near the exit area and an inclined surface on the shroud rising from the floor toward the exit area until the distance from the top of the shroud to the ceiling of the storage chamber is slightly less than the width of the ribbon to restrain all but the single strand of ribbon from being fed from the storage chamber.

2. The cartridge of claim 1 in which the inclined surface on the shroud rises from the floor of the storage chamber toward the exit area at a substantially uniform angle.

3. The cartridge of claim 2 in which the shroud is formed in an are near the exit area.

4. The cartridge of claim 3 in which the shroud is formed around the exit area in an are shaped so that the single strand of ribbon being fed from the storage chamber will cross the shroud substantially at right angles to the shroud from substantially any direction that the single strand of ribbon is pulled from inside the storage chamber.

5. The cartridge of claim 4 in which the exit area includes a roller to change the direction of the single strand of ribbon exiting from the storage chamber and the shroud is formed around the roller.

6. The cartridge of claim 5 in which the cartridge has an entrance area for the ribbon to enter the storage chamber and a feed roller near the entrance area to stuff the ribbon into the storage chamber.

7. An improved stuffed ribbon cartridge for a ribbon, the cartridge having a storage chamber for the ribbon and an exit area for a single strand of the ribbon to exit from the storage chamber, wherein the improvement comprises a shroud formed in an are near the exit area for confining the width of the ribbon to a space less than the width of the ribbon to restrain all but the single strand of ribbon from being fed from the storage chamher.

8. The cartridge of claim 7 in which the storage chamber has two substantially parallel surfaces greater than a ribbons width apart to confine the ribbon in the storage chamber with the width of the ribbon substantially perpendicular to the surfaces, and the shroud is a ridge on one of the surfaces with the distance from the top of the ridge to the other surface less than the 6 width of the ribbon.

9. The cartridge of claim 8 in which the shroud has an inclined surface extending from one of the surfaces of the storage chamber toward the storage area.

10. The cartridge of claim 9 in which the shroud is formed around the exit area in an are shaped so that the single strand of ribbon being fed from the storage chamber will cross the shroud substantially at right angles to the shroud from substantially any direction that the single strand of ribbon is pulled from inside the storage chamber.

11. The cartridge of claim 10 in which the exit area includes a roller to change the direction of the single strand of ribbon exiting from the storage chamber and the shroud is formed around the roller.

12. The cartridge of claim 11 in which the cartridge has an entrance area for the ribbon to enter the storage chamber and a feed roller near the entrance area to stuff the ribbon into the storage chamber.

Claims (12)

1. An improved stuffed ribbon cartridge for a ribbon, the cartridge having a storage chamber for the ribbon with a floor and a ceiling substantially perpendicular to and farther apart than the width of the ribbon and an exit area for a single strand of the ribbon to exit from the storage chamber, wherein the improvement comprises a shroud on the floor of the storage chamber near the exit area and an inclined surface on the shroud rising from the floor toward the exit area until the distance from the top of the shroud to the ceiling of the storage chamber is slightly less than the width of the ribbon to restrain all but the single strand of ribbon from being fed from the storage chamber.
2. The cartridge of claim 1 in which the inclined surface on the shroud rises from the floor of the storage chamber toward the exit area at a substantially uniform angle.
3. The cartridge of claim 2 in which the shroud is formed in an arc near the exit area.
4. The cartridge of claim 3 in which the shroud is formed around the exit area in an arc shaped so that the single strand of ribbon being fed from the storage chamber will cross the shroud substantially at right angles to the shroud from substantially any direction that the single strand of ribbon is pulled from inside the storage chamber.
5. The cartridge of claim 4 in which the exit area includes a roller to change the direction of the single strand of ribbon exiting from the storage chamber and the shroud is formed around the roller.
6. The cartridge of claim 5 in which the cartridge has an entrance area for the ribbon to enter the storage chamber and a feed roller near the entrance area to stuff the ribbon into the storage chamber.
7. An improved stuffed ribbon cartridge for a ribbon, the cartridge having a storage chamber for the ribbon and an exit area for a single strand of the ribbon to exit from the storage chamber, wherein the improvement comprises a shroud formed in an arc near the exit area for confining the width of the ribbon to a space less than the width of the ribbon to restrain all but the single strand of ribbon from being fed from the storage chamber.
8. The cartridge of claim 7 in which the storage chamber has two substantially parallel surfaces greater than a ribbon''s widTh apart to confine the ribbon in the storage chamber with the width of the ribbon substantially perpendicular to the surfaces, and the shroud is a ridge on one of the surfaces with the distance from the top of the ridge to the other surface less than the width of the ribbon.
9. The cartridge of claim 8 in which the shroud has an inclined surface extending from one of the surfaces of the storage chamber toward the storage area.
10. The cartridge of claim 9 in which the shroud is formed around the exit area in an arc shaped so that the single strand of ribbon being fed from the storage chamber will cross the shroud substantially at right angles to the shroud from substantially any direction that the single strand of ribbon is pulled from inside the storage chamber.
11. The cartridge of claim 10 in which the exit area includes a roller to change the direction of the single strand of ribbon exiting from the storage chamber and the shroud is formed around the roller.
12. The cartridge of claim 11 in which the cartridge has an entrance area for the ribbon to enter the storage chamber and a feed roller near the entrance area to stuff the ribbon into the storage chamber.
US3814231A 1973-04-24 1973-04-24 Stuffed ribbon cartridge Expired - Lifetime US3814231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3814231A US3814231A (en) 1973-04-24 1973-04-24 Stuffed ribbon cartridge

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US3814231A US3814231A (en) 1973-04-24 1973-04-24 Stuffed ribbon cartridge
CA 189473 CA1004242A (en) 1973-04-24 1974-01-04 Stuffed ribbon cartridge
GB755574A GB1419899A (en) 1973-04-24 1974-02-19 Ribbon cartridges
JP2101874A JPS5326163B2 (en) 1973-04-24 1974-02-21
DE19742412762 DE2412762C3 (en) 1973-04-24 1974-03-16

Publications (1)

Publication Number Publication Date
US3814231A true US3814231A (en) 1974-06-04

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Application Number Title Priority Date Filing Date
US3814231A Expired - Lifetime US3814231A (en) 1973-04-24 1973-04-24 Stuffed ribbon cartridge

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US (1) US3814231A (en)
JP (1) JPS5326163B2 (en)
CA (1) CA1004242A (en)
DE (1) DE2412762C3 (en)
GB (1) GB1419899A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5184310A (en) * 1975-01-21 1976-07-23 Yamura Shinkoseisakusho Kk Ribonkasetsuto
US3981387A (en) * 1974-12-24 1976-09-21 Ncr Corporation Method for inking preassembled ribbon cartridges
US3989132A (en) * 1974-08-26 1976-11-02 General Electric Company Ribbon storage and transport mechanism
US4011933A (en) * 1975-10-03 1977-03-15 Xerox Corporation Ribbon drive means
US4114751A (en) * 1976-10-22 1978-09-19 Teletype Corporation Printing machine with automatic off-center crown roller ribbon-wear compensation
EP0006994A1 (en) * 1978-07-14 1980-01-23 International Business Machines Corporation Ribbon drive mechanism for a ribbon cartridge
US4229112A (en) * 1978-12-22 1980-10-21 International Business Machines Corporation Random stuffer ribbon cartridge with improved ribbon exit control
US4243330A (en) * 1979-01-15 1981-01-06 Burroughs Corporation Dot printer adjustable endless loop ribbon cartridge transport apparatus
US4270867A (en) * 1978-09-07 1981-06-02 Nixdorf Computer Ag Ink ribbon magazine for endless ink ribbon cartridge
US4286887A (en) * 1978-10-19 1981-09-01 Brother Kogyo Kabushiki Kaisha Endless ribbon cassette
JPS57204159U (en) * 1974-07-03 1982-12-25
US4405247A (en) * 1978-06-05 1983-09-20 Centronics Data Computer Corp. Fully self-contained disposable cartridge for inked ribbons and the like
WO1985003260A1 (en) * 1984-01-20 1985-08-01 Varitronic Systems, Inc. Ribbon cassette
US4741640A (en) * 1981-12-16 1988-05-03 Ricoh Company Ltd. Ink ribbon cartridge of a printing machine
US4749293A (en) * 1985-11-08 1988-06-07 Beer Eric C Ribbon cassette for printers
US4815871A (en) * 1986-11-14 1989-03-28 Varitronic Systems, Inc. Head control apparatus
US4828411A (en) * 1986-01-08 1989-05-09 Canon Kabushiki Kaisha Tensioning apparatus for an ink ribbon cassette
US4840503A (en) * 1988-03-31 1989-06-20 International Business Machine Corporation Stuffed chamber ribbon cartridge
EP0338970A2 (en) * 1988-04-19 1989-10-25 Genicom Corporation High-symbol density printer cartridge
US5078523A (en) * 1988-03-04 1992-01-07 Varitronic Systems, Inc. Tape cassette with identifying circuit element for printing machine
US5209586A (en) * 1992-08-10 1993-05-11 Genicom Corporation Ribbon cartridge and printer drive system for the ribbon
US5318370A (en) * 1992-11-17 1994-06-07 Varitronic Systems, Inc. Cartridge with data memory system and method regarding same

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994383A (en) * 1975-02-05 1976-11-30 Ncr Corporation Stuffed ribbon cartridge
DE2534535C2 (en) * 1975-08-01 1986-03-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
DE2616345C3 (en) * 1976-04-14 1981-12-10 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
JPS579954B2 (en) * 1977-12-07 1982-02-24
US4373823A (en) * 1979-03-22 1983-02-15 Ing. C. Olivetti & C. S.P.A. Ribbon guide for an inked ribbon cartridge
JPS5725396B2 (en) * 1979-12-12 1982-05-29
EP0034026B1 (en) * 1980-02-08 1984-04-18 Ing. C. Olivetti & C., S.p.A. Cartridge for a typewriter typing ribbon
JPS58129158U (en) * 1982-02-25 1983-09-01

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GB191512870A (en) * 1915-09-08 1916-03-09 Ernest James Smith Improvements in Machines for Preparing Intaglio Printing Cylinders.
US3346161A (en) * 1965-12-29 1967-10-10 Dasa Corp Tape magazine having loop blocking means
GB1288212A (en) * 1968-09-12 1972-09-06
FR2078375A5 (en) * 1970-02-17 1971-11-05 Olivetti & Co Spa
US3613976A (en) * 1970-02-19 1971-10-19 Rca Corp Apparatus for handling endless tape
DE2108742A1 (en) * 1971-02-24 1972-09-07 Siemens Ag
US3677495A (en) * 1971-03-05 1972-07-18 Ampex Tape retaining reel cartridge
US3693859A (en) * 1971-08-04 1972-09-26 Eastman Kodak Co Web slack box having a rotatable web accumulator
US3758012A (en) * 1971-12-20 1973-09-11 Ibm Controlled tension ribbon cassette

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6350125Y2 (en) * 1974-07-03 1988-12-22
JPS57204159U (en) * 1974-07-03 1982-12-25
US3989132A (en) * 1974-08-26 1976-11-02 General Electric Company Ribbon storage and transport mechanism
US3981387A (en) * 1974-12-24 1976-09-21 Ncr Corporation Method for inking preassembled ribbon cartridges
JPS5184310A (en) * 1975-01-21 1976-07-23 Yamura Shinkoseisakusho Kk Ribonkasetsuto
US4011933A (en) * 1975-10-03 1977-03-15 Xerox Corporation Ribbon drive means
US4114751A (en) * 1976-10-22 1978-09-19 Teletype Corporation Printing machine with automatic off-center crown roller ribbon-wear compensation
US4405247A (en) * 1978-06-05 1983-09-20 Centronics Data Computer Corp. Fully self-contained disposable cartridge for inked ribbons and the like
EP0006994A1 (en) * 1978-07-14 1980-01-23 International Business Machines Corporation Ribbon drive mechanism for a ribbon cartridge
US4212550A (en) * 1978-07-14 1980-07-15 International Business Machines Corporation Ribbon storage mechanism having eccentrically mounted feeding elements
US4270867A (en) * 1978-09-07 1981-06-02 Nixdorf Computer Ag Ink ribbon magazine for endless ink ribbon cartridge
US4286887A (en) * 1978-10-19 1981-09-01 Brother Kogyo Kabushiki Kaisha Endless ribbon cassette
US4229112A (en) * 1978-12-22 1980-10-21 International Business Machines Corporation Random stuffer ribbon cartridge with improved ribbon exit control
US4243330A (en) * 1979-01-15 1981-01-06 Burroughs Corporation Dot printer adjustable endless loop ribbon cartridge transport apparatus
US4741640A (en) * 1981-12-16 1988-05-03 Ricoh Company Ltd. Ink ribbon cartridge of a printing machine
WO1985003260A1 (en) * 1984-01-20 1985-08-01 Varitronic Systems, Inc. Ribbon cassette
US4595305A (en) * 1984-01-20 1986-06-17 Varitronic Systems, Inc. Ribbon cassette
US4749293A (en) * 1985-11-08 1988-06-07 Beer Eric C Ribbon cassette for printers
US4828411A (en) * 1986-01-08 1989-05-09 Canon Kabushiki Kaisha Tensioning apparatus for an ink ribbon cassette
US4815871A (en) * 1986-11-14 1989-03-28 Varitronic Systems, Inc. Head control apparatus
US5078523A (en) * 1988-03-04 1992-01-07 Varitronic Systems, Inc. Tape cassette with identifying circuit element for printing machine
US4840503A (en) * 1988-03-31 1989-06-20 International Business Machine Corporation Stuffed chamber ribbon cartridge
EP0336872A2 (en) * 1988-03-31 1989-10-11 Lexmark International, Inc. Stuffed chamber ribbon cartridge
EP0336872A3 (en) * 1988-03-31 1989-11-23 International Business Machines Corporation Stuffed chamber ribbon cartridge
EP0338970A2 (en) * 1988-04-19 1989-10-25 Genicom Corporation High-symbol density printer cartridge
EP0338970A3 (en) * 1988-04-19 1990-03-14 Genicom Corporation High-symbol density printer cartridge
US5209586A (en) * 1992-08-10 1993-05-11 Genicom Corporation Ribbon cartridge and printer drive system for the ribbon
US5318370A (en) * 1992-11-17 1994-06-07 Varitronic Systems, Inc. Cartridge with data memory system and method regarding same

Also Published As

Publication number Publication date Type
CA1004242A1 (en) grant
JPS5326163B2 (en) 1978-07-31 grant
JPS5036220A (en) 1975-04-05 application
CA1004242A (en) 1977-01-25 grant
DE2412762C3 (en) 1984-08-30 grant
JP1070361C (en) grant
GB1419899A (en) 1975-12-31 application
DE2412762A1 (en) 1974-11-14 application
DE2412762B2 (en) 1977-12-08 application

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Date Code Title Description
AS Assignment

Owner name: SMITH CORONA CORPORATION, 65 LOCUST AVENUE, NEW CA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SCM CORPORATION;REEL/FRAME:004810/0544

Effective date: 19870804