GB2171082A - Improvements in or relating to facsimile recorders - Google Patents
Improvements in or relating to facsimile recorders Download PDFInfo
- Publication number
- GB2171082A GB2171082A GB08602387A GB8602387A GB2171082A GB 2171082 A GB2171082 A GB 2171082A GB 08602387 A GB08602387 A GB 08602387A GB 8602387 A GB8602387 A GB 8602387A GB 2171082 A GB2171082 A GB 2171082A
- Authority
- GB
- United Kingdom
- Prior art keywords
- paper
- core
- roll
- recording
- recorder
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/00647—Decurling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0005—Curl smoothing, i.e. smoothing down corrugated printing material, e.g. by pressing means acting on wrinkled printing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/16—Means for tensioning or winding the web
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/34—Apparatus for taking-out curl from webs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/00665—Details specific to handling of web-shaped media, e.g. paper or film rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/14—Diameter, e.g. of roll or package
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Unwinding Webs (AREA)
- Facsimiles In General (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
A facsimile recorder uses a roll (9) of dry, thermally sensitive recording paper on an unusually small core about one half inch or less in diameter, the ratio of core length to diameter being substantially twenty or greater to one. The sensitive surface of the paper faces inward so the paper can be fed on a path past a plate (17) pivotable about a joint (18). The plate (17) has a straight edge (22) which is swung progressively into the paper path as the roll diameter decreases by means of a spring (21) or weight (w) to remove the curl from the paper. <IMAGE>
Description
SPECIFICATION
Improvements in or relating to facsimile recorders
The present invention relates to facsimile recorders and to recording paper supplies therein.
In facsimile recorders of electrically transmitted signals a graphic recording is made typically by feeding recording paper from a paper supply roll past a recording head where the signals are applied across the paper line by line, and thence to an exit from the recorder. Feeding limp, moist recording paper raises no feed problem, however other, dry recording papers such as coated thermal facsimile recording paper are so stiff that they retain the curl imparted to them by being wound on a cylindrical core. The outer paper turns of large diameter, for example, three or four inches, do not have a serious curl. But as the roll is depleted by unwinding off the core the curl diameter decreases toward that of the core.And even if the problem of feeding the lighter curls is temporarily controlled by closely spaced feed and idler rolls, the paper exists the recorder with a residual tight curl interfering with reading, handling and storing the record. Previously it has been attempted to minimize the dry paper curling problem by winding the paper around large cores of about two or more inches diameter. With an inch and a half or more of paper turns added to the core diameter the paper supply roll becomes the most bulky component of the recorder and prevents miniaturation of the recorder as a whole.
An object of the present invention is to provide an improved paper supply which will allow reduction in the size of facsimile recorders by reducing the diameter of the paper supply roll and overcome the problem of residual curl.
In one aspect the invention provides a recording paper supply for a facsimile recorder; said supply comprising a cylindrical core and a length of thermally sensitive recording paper wound tightly on the core; wherein the core diameter is approximately one half inch or less in diameter, and the ratio of core length to the core diameter is substantially twenty to one or greater, and the recording paper has a thermally sensitive surface facing inwardly toward the core so that the paper can be fed in a folded path leading from the core to remove the curl from the paper.
Further according to the invention a facsimile recorder comprises a housing; recording means in the housing; a recording paper supply in the housing including a cylindrical core and a length of thermally sensitive recording paper wound tightly on the core; wherein the core diameter is approximately one half inch or less in diameter, and the ratio of core length to the core diameter is substantially twenty to one or greater; and uncurling means to bend the path between the roll and the recording means to remove the residual curl from the paper.
The uncurling or bending means take the form of the metal plate bent around the roll and biased thereagainst with a spring or weight.
The invention also provides a facsimile recorder comprising a housing around a space receiving a roll of recording paper; a recorder head in the housing for applying recording signals to the paper; means to feed paper from the roll on a path to the recorder head; and straight edge means at least the width of the paper roll supported on a pivot in the housing in a position to bear on the paper between the roll and the feed means, the pivot being located relative to the paper feed path to swing the straight edge progressively into the paper path as the paper roll diameter diminishes thereby to apply an increasing uncurling bend to the paper.
The invention may be understood more readily and various other features of the invention may become apparent from consideration of the following description.
An embodiment of the invention will now be described, by way of example only, with reference to the accompanying drawing, wherein:
Figure 1 is a schematic side elevation of a facsimile recorder constructed in accordance with the invention, with parts being broken away;
Figure 2 is an end view of the paper core for the recorder; and
Figure 3 is a side view of the core.
The facsimile recorder shown in Fig. 1 comprises a housing 1 formed by side walls 2, top and bottom walls 3 and 4, a back wall 6 and a front wall 7 which with the sidewalls 2 forms a paper exit 8. The housing walls form a cover 5 hinged to a base 10 at a pivot 15.
Within the housing is a space for a recording paper supply roll 9 wound on a core 11. Paper is drawn by a feed roll 12 past a recording head 13 toward the exit 8.
The paper 9 on the roll can be a commercially available paper with a dry thermally sensitive coating on its inner side on the roll. A suitable recording head is Rohm type KH1071, available from Rohm Corporation, Irvine,
California. Such a recording head has, for example, two thousand heating elements 14 is a line across the width of the paper on a ten inch wide core. Graphic signals are applied from a source 1 6 successively to the elements across the paper so that the paper is marked with the graphic information of the signals line by line as the paper 9 is fed past the head 13.
According to the invention a device 16 for uncurling the paper 9 as it leaves the roll is mounted within the hosuing in a position to bear on the paper. The uncurling device 16 comprises a folded metal sheet 17 swinging on the pivot 18 at the top of a standard 19 extending from the bottom wall 4. The uncurler 17 is yieldingly pressed down on the paper roll 9 by a spring 21 or by a weight W, or both.
When the paper roll is full straight edge means 22 at the forward, free end of the uncurling device 17 and extending across at least the width of the paper 9 is tangential or clear of the paper 9 between the roll and the recording head 13. As the paper supply is depleted by unwinding off the core 11 the diameter of the remianing turns decreases toward the diameter of the core. These inner windings tend to retain the tighter residual curl adjacent the core after leaving the core. But the forward straight edge 22 of the uncurling device progressively swings into the paper path applying an increasing bend A up to a right angle in the altered paper path 9* as shown by the phantom position 17* of the uncurling device. Thus the increasing bend imparts an increasing uncurling effect on the paper proportionate to the tighter residual curl of the inner paper windings.
The ability of the present recorder to compensate proportionally for the residual curl of the increasingly tighter inner paper windings makes possible a substantially great reduction in the diameter of the core despite the resultant greater tightness of the inner windings.
Whereas prior cores for dry recording paper exceeded two inches in diameter, a present core size of approximately one half inch and less is now practicai and useful. A core with a twenty or greater to one ratio of core length to core diameter is possible. This newly achieved diameter and ratio makes possible a greatly reduced size of recorder.
Claims (14)
1. A facsimile recorder comprising a housing containing recording means co-operating with recording paper supply means, said supply means including a cylindrical core and a length of thermally sensitive recording paper wound tightly on the core; wherein the core diameter is approximately one half inch or less in diameter and the ratio of core length to the core diameter is substantially twenty to one or greater; wherein uncurling means is provided to bend the path between the roll and the recording means to remove the residual curl from the paper.
2. A recording paper supply for a facsimile recorder; said supply comprising a cylindrical core and a length of thermally sensitive recording paper wound tightly on the core; wherein the core diameter is approximately one half inch or less in diameter, and the ratio of core length to the core diameter is substantially twenty to one or greater, and the recording paper has a thermally sensitive surface facing inwardly toward the core so that the paper can be fed in a folded path leading from the core to remove the curl from the paper.
3. A paper supply according to claim 2, wherein means is provided to remove the curl from the paper.
4. A facsimile recorder incorporating a paper supply according to claim 2 or 3.
5. A facsimile recorder according to claim 1, wherein the uncurling means is a pivotable shaped sheet metal member forceable biased onto the paper roll.
6. A facsimile recording comprising a housing around a space receiving a roll of recording paper; a recorder head in the housing for applying recording signals to the paper; means to feed paper from the roll on a path to the recorder head; and straight edge means at least the width of the paper roll supported on a pivot in the housing in a position to bear on the paper between the roll and the feed means, the pivot being located relative to the paper feed path to swing the straight edge progressively into the paper path as the paper roll diameter diminishes thereby to apply an increasing uncurling bend to the paper.
7. A recorder according to claim 6, wherein the straight edge means includes a terminal straight edge bending the paper path.
8. A recorder according to claim 6 or 7, wherein the pivot of the straight edge means is located to increase the bend in the paper approximately to a right angle.
9. A recorder according to claim 6, 7 or 8, wherein the straight edge means includes a portion intermediate its pivot and straight edge bearing on a full roll.
10. A recording according to any one of claims 6 to 9 and further comprising means yieldingly urging the straight edge means toward the paper roll.
11. A recorder according to claim 10, wherein the urging means comprises a spring.
12. A recorder according to claim 10, wherein the urging means comprises a weight.
13. A recorder according to any one of claims 6 to 12, wherein the roll receiving space is between the straight edge means pivot and the feed means.
14. A facsimile recorder or paper supply therein substantially as described with reference to and as illustrated in the accompanying drawings.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69796385A | 1985-02-04 | 1985-02-04 | |
US69778585A | 1985-02-04 | 1985-02-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8602387D0 GB8602387D0 (en) | 1986-03-05 |
GB2171082A true GB2171082A (en) | 1986-08-20 |
GB2171082B GB2171082B (en) | 1989-01-05 |
Family
ID=27106078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08602387A Expired GB2171082B (en) | 1985-02-04 | 1986-01-31 | Improvements in or relating to facsimile recorders |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2171082B (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0410396A2 (en) * | 1989-07-24 | 1991-01-30 | Canon Kabushiki Kaisha | Recording apparatus |
EP0466186A2 (en) * | 1990-07-13 | 1992-01-15 | Canon Kabushiki Kaisha | Ink sheet cartridge for a recording apparatus |
US5110227A (en) * | 1990-04-02 | 1992-05-05 | Eastman Kodak Co. | Color printer |
EP0516118A2 (en) * | 1991-05-29 | 1992-12-02 | Canon Kabushiki Kaisha | Recording apparatus |
EP0518712A1 (en) * | 1991-06-11 | 1992-12-16 | Sextant Avionique S.A. | Ergonomic printer on board aircraft cockpit |
US5255989A (en) * | 1990-08-31 | 1993-10-26 | Data Techno Gmbh | Printer device with a thermal print head |
US5533821A (en) * | 1988-12-05 | 1996-07-09 | Canon Kabushiki Kaisha | Curl correction apparatus |
US5637070A (en) * | 1989-07-27 | 1997-06-10 | Canon Kabushiki Kaisha | Curl correcting device |
EP1318093A2 (en) * | 2001-12-04 | 2003-06-11 | Seiko Epson Corporation | Roll paper curl correction device and record apparatus with the roll paper curl correction device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB964900A (en) * | 1960-02-16 | 1964-07-22 | Kimberly Clark Co | Improvements in or relating to apparatus for supplying sheet material to printing machines |
GB1288846A (en) * | 1969-09-09 | 1972-09-13 | ||
GB1350513A (en) * | 1972-03-02 | 1974-04-18 | Pentacon Dresden Veb | Strip straightening apparatus |
GB1360191A (en) * | 1971-07-22 | 1974-07-17 | Molins Ltd | Web feeding |
-
1986
- 1986-01-31 GB GB08602387A patent/GB2171082B/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB964900A (en) * | 1960-02-16 | 1964-07-22 | Kimberly Clark Co | Improvements in or relating to apparatus for supplying sheet material to printing machines |
GB1288846A (en) * | 1969-09-09 | 1972-09-13 | ||
GB1360191A (en) * | 1971-07-22 | 1974-07-17 | Molins Ltd | Web feeding |
GB1350513A (en) * | 1972-03-02 | 1974-04-18 | Pentacon Dresden Veb | Strip straightening apparatus |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5533821A (en) * | 1988-12-05 | 1996-07-09 | Canon Kabushiki Kaisha | Curl correction apparatus |
US5450102A (en) * | 1989-07-24 | 1995-09-12 | Canon Kabushiki Kaisha | Recording apparatus with means for removing paper curl |
EP0410396A3 (en) * | 1989-07-24 | 1991-05-02 | Canon Kabushiki Kaisha | Recording apparatus |
EP0410396A2 (en) * | 1989-07-24 | 1991-01-30 | Canon Kabushiki Kaisha | Recording apparatus |
US5637070A (en) * | 1989-07-27 | 1997-06-10 | Canon Kabushiki Kaisha | Curl correcting device |
US5110227A (en) * | 1990-04-02 | 1992-05-05 | Eastman Kodak Co. | Color printer |
EP0466186A3 (en) * | 1990-07-13 | 1992-04-15 | Canon Kabushiki Kaisha | Ink sheet cartridge for a recording apparatus |
EP0466186A2 (en) * | 1990-07-13 | 1992-01-15 | Canon Kabushiki Kaisha | Ink sheet cartridge for a recording apparatus |
US5536093A (en) * | 1990-07-13 | 1996-07-16 | Canon Kabushiki Kaisha | Supply and take-up reels in an ink sheet cartridge and recording apparatus using said ink sheet cartridge |
US5255989A (en) * | 1990-08-31 | 1993-10-26 | Data Techno Gmbh | Printer device with a thermal print head |
US5413426A (en) * | 1991-05-29 | 1995-05-09 | Canon Kabushiki Kaisha | Recording apparatus |
EP0516118A2 (en) * | 1991-05-29 | 1992-12-02 | Canon Kabushiki Kaisha | Recording apparatus |
EP0516118A3 (en) * | 1991-05-29 | 1993-01-27 | Canon Kabushiki Kaisha | Recording apparatus |
US5388923A (en) * | 1991-06-11 | 1995-02-14 | Sextant Avionique | Ergonomic printer for use in aircraft cockpits |
EP0518712A1 (en) * | 1991-06-11 | 1992-12-16 | Sextant Avionique S.A. | Ergonomic printer on board aircraft cockpit |
FR2677580A1 (en) * | 1991-06-11 | 1992-12-18 | Sextant Avionique | ERGONOMIC PRINTER THAT CAN BE USED ON BOARD THE COCKPIT OF AN AERODYNE. |
EP1318093A2 (en) * | 2001-12-04 | 2003-06-11 | Seiko Epson Corporation | Roll paper curl correction device and record apparatus with the roll paper curl correction device |
EP1318093A3 (en) * | 2001-12-04 | 2004-12-22 | Seiko Epson Corporation | Roll paper curl correction device and record apparatus with the roll paper curl correction device |
US6908242B2 (en) | 2001-12-04 | 2005-06-21 | Seiko Epson Corporation | Roll paper curl correction device and record apparatus with the roll paper curl correction device |
Also Published As
Publication number | Publication date |
---|---|
GB2171082B (en) | 1989-01-05 |
GB8602387D0 (en) | 1986-03-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19960131 |