A cartridge for containing film papers and printing papers and a color video printer using the cartridge

Abstract: A cartridge (10) for a color video printer comprising a cartridge body (18), a film paper section occupying a part of a space inside the cartridge body, a container (16) for containing the printing papers (17) and occupying the other part of the space inside the cartridge body. The film paper section for containing film papers consists of a supply reel (11) and a take-up reel (12) mounted inside the cartridge body, a discharge hole and a inlet hole formed on a top plate of the cartridge body. The printing paper container consists of a container with one of its side walls open. A color video printer using the cartridge above mentioned comprising a pair loading rollers for automatically loading the film papers, a FO-CRT for photosensitively projecting an image to be printed onto the film papers, a capstan shaft, a pinch roller, a belt interlocking the pinch roller and one of the loading rollers, a pair of pressing rollers, a pair of guide rollers, a fixing unit (30) for fixing the transcribed image of the printing papers. The present invention provides a cartridge by which the film papers and the printing papers are contained in one cartridge, additionally a supplement of the printing papers and an exchanging operation of the film papers can be carried out simply. Also the present invention provides a compact color video printer comparing to the conventional printer.

Description: The present invention relates to a cartridge for containing film papers and printing papers and a color video printer using the cartridge. General color video printers include two separate cartridges containing printing papers and a film paper therein, respectively. Such a color video printer is known from US-A-4,896,198. A typical example will now be described in conjunction with an accompanying drawing. Referring to Fig. 1, there is shown a conventional cycolor-mode color video printer. The printer comprises an optical unit 1, a transport unit 2, a printing paper supply unit 3, a pressure developing unit 4, a heat fixing unit 5, a film paper(or cycolor paper) supply unit 6, and a film paper take-up unit 7. In printing operation of the above-mentioned color video printer, an image of an original paper 8 to be printed passes through the optical unit 1 and is then photosensitively projected on a film paper 6' fed from the film paper supply unit 6. The image-projected film paper 6' is fed to the pressure developing unit 4, together with a printing paper 3' fed from a printing paper supply unit 3 and overlapped with said film paper 6'. In the pressure developing unit 4, the picture of original paper 8 projected on the film paper 6' is transcribed on a printing paper 3'. Passing through the heat fixing unit 5, the printing paper 3' is then discharged outside. Simultaneously, the film paper 6' is taken up on the film take-up unit 7. Thus, a series of printing steps is completed. In the above printing operation, the transport unit 2 is generally adapted to function as a guide for the film paper 6' and the printing paper 3'. However, such conventional color video printer with the above-mentioned construction that the printing paper supply unit 3 is mounted separately from the film paper supply unit 6 has some problems that the printing paper supply unit 3 and the film paper supply unit 6 should be separated from the printer body 9 in supplementing or exchanging the printing papers 3' and the film papers 6' and take up much space inside the printer body 9, thereby enlarge the volume of the body 9. Accordingly it is an object of the present invention to provide, for solving the above mentioned problems of the hitherto used cartridges, a cartridge for a color video printer in which printing papers and film papers are contained in a single case. It is another object of the present invention to provide a compact color video printer with such a cartridge. In accordance with the present invention, there is provided a cartridge of a color video printer for containing film papers and printing papers comprising a cartridge body, a supply reel and a take-up reel mounted in a space inside the cartridge body for supplying, taking up the film papers individually, a discharge hole and an inlet hole formed on a top plate of the cartridge body for discharging, receiving the film papers therefrom individually, and a container formed to occupy the other space inside the cartridge body for containing the printing papers therein. Also according to the present invention, there is provided a color video printer comprising such a cartridge which is attached thereto in detachable manner and is containing film papers and printing papers, the color video printter further comprising a photosensitively projecting means for photosensitively projecting an image to be printed on the film paper fed from the discharge hole of the cartridge, a pressure developing means for pressing the film paper and the printing paper in order to transcribe the image photosensitively projected on the film paper onto the printing paper, and a fixing means for fixing the transcribed image of the printing paper and discharging the fixed printing paper. Hereinafter, the present invention will be described in more detail in conjunction with the annexed drawings, in which: Fig. 1 is a schematic view showing an internal construction of a conventional color video printer, Fig. 2 is a perspective view of a cartridge for containing printing papers and film papers in accordance with the present invention, and Fig. 3 is a schematic view showing an internal construction of a color video printer in which a cartridge of Fig. 2 is attached. Turning now to the details of the drawings, Fig. 2 is a schematic view of a cartridge for containing printing papers and film papers according to the present invention. As shown in Fig. 2, the cartridge comprises a cartridge body 10 which consists of a film paper section and a printing paper section. The film paper section, occupying an almost half space inside the cartridge body 10, is provided with a supply reel 11 and a take-up reel 12 rotatably mounted therein. The supply reel 11 is wound with film papers 13 of which both sides are loading-guide portions 13' being provided with a number of hooked holes 13a. Also, the take-up reel 12 includes a number of hooking projections 12', for automatic loading of the film papers 13, formed peripherally around both ends thereof. Thus, in operation, the take-up reel 12 rotates with the film papers 13 hooked by the hooking projections 12', so that the film papers 13 can be taken up around the take-up reel 12. Also, there are a narrow and long discharge hole 14 and an inlet hole 15, discharging and supplying the film papers 13 therefrom individually, formed laterally on a top plate of the body 10. Thus, the film papers 13 wound around the supply reel 11 may be supplied from the discharge hole 14, and return to be taken up around the take-up reel 12 through the inlet hole 15 after passing through a series of passage. On the other hand, the printing paper section, occupying the other space inside the body 10, comprises a printing paper container 16 with a predetermined depth, a side thereof open (see Fig. 3). Thus, the printing papers 17 in the container 16 may be selectively discharged in the direction A or B as indicated by the arrows in Fig. 2 depending on constructions of the printers. In addition, there may be a paper support of various types on the surface of a bottom plate 18 of the body 10 for support the printing papers 17 in order to run a pick-up operation for the printing papers more smoothly (see Fig. 3). For the above-mentioned paper support, a conventional compressed plate, hitherto used in general duplicators and comprising a plate being laid on the bottom plate 18 and a compressed spring positioned under the plate for elastically and upwardly supporting it may be used. Fig. 3 is a schematic view showing the inside of a color video printer with such a cartridge attached in a lower side thereof. As shown in the drawing, the color video printer is provided with a pair of loading rollers 21 and 21' mounted over the attached cartridge body 10 in an optimum space, a pinch roller 22 and a capstan shaft 23 mounted over the loading rollers 21 and 21'. The pinch rollers 22 and 21' of the loading rollers 21 and 21' are interlocked by a belt 24, thus the film papers 13 can be fed by the rotation of the capstan shaft 23. Also, the color video printer is provided with a FO (fiber optices) - CRT (cathode ray tube) 25 for photosensitively projecting the film papers 13, mounted at a back portion between the loading rollers 21 and 21' and the capstan shaft 23, and a pick-up roller assembly 26 mounted below the FO-CRT 25 for picking up the printing papers 17. The passage for feeding the printing papers 17 is provided with a paper guide 27, several pairs of paper distributing rollers 28 and 28'. Also, the passage for feeding the printing papers 17 and the film papers 13 simultaneously is provided with a pair of pressing rollers 29 and 29'. In addition, there are a fixing unit 30 for fixing the projected image of the printing papers 17 before the pressing rollers 29 and 29'. It is also provided a pair of guide rollers 31 and 31' at a position between the take-up reel 12 of the cartridge body 10 and the pressing rollers 29 and 29'. In loading operation of the film papers 13, after the cartidge body 10 is inserted into the color video printer, the film papers 13 of an optimum length are extruded from the discharge hole 14 of the body 10 by rotation of the supply reel 11, a starting end of the film papers 13 is then pinched between the loading rollers 21 and 21'. Thereafter, the film papers 13 pass through a passage of the pinch roller 22 and the capstan shaft 23, the pressing rollers 29 and 29' and the guide rollers 31 and 31' sequentially. The film papers 13 from the guide rollers 31 and 31' return to the cartridge body 10 through the inlet hole 15, the hooked holes 13a thereof are then hooked by the hooking projections 12' of the take-up reel 12, thus a loading operation of the film papers 13 is completed. In printing operation after loading the film papers 13, at first the film papers 13, fed in a predetermined speed by the capstan shaft 23, are photosensitively projected by the FO-CRT 25 positioned between the loading rollers 21 and 21' and the capstan shaft 23. The photosensitively projected film papers 13 continuously pass through the above-mentioned passage. Simultaneously the printing papers 17 discharged from the container 16 by the pick-up roller assembly 26 pass through its passage under guide of the guide 27 and the distributing rollers 28 and 28'. Thus, the film papers 13 and the printing papers 17 can simultaneously pass through the pressing rollers 29 and 29'. At this time, an image photosensitively projected on the film paper 13 is transcribed on the printing paper 17 as a result of the pressure-developing of cylith particles of the film papers 13 onto the surface of the printing papers 17 by a pressing power. Thereafter, the printing papers 17 with the images transcribed thereon are heat-fixed by the fixing unit 30, and then discharged outside the video printer. Also, the film papers 13 are taken up around the take-up reel 12 of the cartridge body 10. Accordingly, it is known that the cartridge in accordance with the present invention by which the film papers and the printing papers are contained in a cartridge provides the advantages that the supply of the printing papers and the exchange of the film papers can be carried out by a simple exchange of the cartridge, the volume of the color video printer can be reduced as a result of simplification of the construction of the cartridge.

Claims: A cartridge of a color video printer for containing film papers and printing papers comprising: a cartridge body (10); a supply reel (11) and a take-up reel (12) mounted in a first space inside the cartridge body for supplying and taking up the film papers individually; a discharge hole (14) and an inlet hole (15) formed on a top plate of the cartridge body (10) for discharging and receiving the film papers individually; and a container (16) formed to occupy the remaining space inside the cartridge body (10) which is not occupied by the said first space for containing the printing papers (17). A cartridge of a color video printer as claimed in Claim 1, wherein said take-up reel (12) has both ends with a number of hooking projections (12') formed peripherally and for hooking hooked holes (13a) of the film papers. A color video printer comprising a cartridge as claimed in Claim 1 which is attached thereto in detachable manner and is containing film papers (13) and printing papers (17); a fiber optics cathode ray tube (25) for photosensitively projecting the image to be printed on the film papers (13) fed from the cartridge; a pair of pressure rollers (29,29') for pressing the printing paper fed from the cartridge and the film paper (13) passed through the fiber optics cathode ray tube to transcribe the image photosensitively projected on the film paper to the printing paper (17); a fixing unit (30) for fixing the image transcribed on the printing paper; and discharge and receiving means for discharging the film paper contained in one side of the cartridge through the fiber optics cathod ray tube and the pressure rollers and receiving the film paper to the interior of the cartridge. A color video printer as claimed in Claim 3, wherein the discharge and receiving means comprises a pair of loading rollers (21,21') for automatically loading said film papers, a pinch roller (22) and a capstan shaft (23) for feeding said film papers from said loading rollers in a regular speed, a belt (24) for interlocking the pinch roller and one of the loading rollers, a pair of pressing rollers (29), and a pair of guide rollers (31,31') for guiding the film papers from the pressing rollers to the take-up reel (12) of the cartridge.

Inventors: PARK HYUN KI, PARK, HYUN KI
Applicants: GOLD STAR CO, GOLDSTAR CO. LTD.
Application year: 1991
Main classification: G03G15
IPC codes: B41J3, B41J32, B41J15, G03B27, G03G15, G03F7