JPS6018373A - Ink doner film device - Google Patents

Abstract

PURPOSE:To facilitate handling an ink doner film and prevent wrinkling or miss printing from occurring, by enclosing an ink doner film into a cassette form container provided with a drawing-out window and a back-tensioning means. CONSTITUTION:The ink doner film 1 is contained in a cassette form cartridge 2 provided with the drawing-out window 3, a winding shaft 7 which is connected to a guide 9 by a spring 8 and exerts a back tension on the film 1 and the like. Accordingly, handling of the ink doner film is facilitated, the film thus back- tensioned is prevented from being wrinkled, and contamination of a recorded image, reverse printing and the like are prevented from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application) The present invention relates to an ink donor film device, and in particular, to simplify handling and prevent the occurrence of wrinkles and white spots on recorded images. This invention relates to an ink donor film device capable of

(Prior art) As shown in Figure WJl, a conventional ink donor film device is usually one in which an ink donor film 1 is simply wound into a roll around a 7l winding shaft such as a paper tube, and this is simply packaged. It was supplied as such.

Therefore, when replacing the ink donor film 1, it is necessary to take out a new ink donor film device, attach a guide to the winding shaft 7, and then set it in the device, or to fit the winding shaft 7 into the guide inside the device. I had to. In this case, since the ink donor film device is generally heavy (approximately 2 to 9 times), it was not easy to mount it.

In addition, since the ink donor film 1 is simply wound around the winding shaft 7 as described above, if it is handled carelessly,
Because the windings become loose and can unravel or fray, it is necessary to handle them carefully when wearing them.

Furthermore, if the winding loosens or comes undone, the ink donor film 1 may become wrinkled or paper dust may adhere to the ink donor surface, which may cause stains or white spots on the recorded image. Easy to handle (Purpose) The present invention was made in order to eliminate the above-mentioned drawbacks, and its purpose is to make it easy to handle, and to prevent the occurrence of wrinkles and white spots on recorded images. An object of the present invention is to provide an ink donor film device that can be used as an ink donor film device.

(Overview) In order to achieve the above object, the present invention has a structure in which an ink donor film wound in a roll around a winding shaft is housed in a container like a cassette (hereinafter referred to as a cartridge). There are characteristics.

(Example) The present invention will be described in detail below with reference to the drawings. FIG. 2 is an external perspective view of one embodiment of the present invention, and FIG. 3 is a sectional view taken in a direction perpendicular to its axis. In these figures, the same reference numerals as in FIG. 1 refer to the same or equivalent parts.

As is clear from these figures, in this embodiment, the ink donor film 1 wound around the winding shaft 7 is housed in the cartridge 2. A part of the cartridge 2 is provided with a window 3 through which the ink donor film 1 can be pulled out. Then, from the window 3, the ink donor film 1
is slightly pulled out.

At this time, if a protruding stopper (not shown) is attached to the tip of the ink donor film 1, the ink donor film 1 will be rewound and the tip will not enter the cartridge 3. , there's no way you won't be able to withdraw it. Further, a leader portion may be added to the tip of the ink donor film 1.

Furthermore, by attaching felt (not shown) or the like to the window 3, it is possible to prevent the ink donor film 1 from being scratched or to prevent dust or dirt from entering.

On the other hand, although not shown, the cartridge 2 has a key or keyway that is fitted into and fixed in the storage section (not shown) of the recording device when loaded into the storage section (not shown). provided.

In addition, in the above-mentioned configuration, especially the remaining part of the ink donor film 1! When the amount of ll decreases, the ink donor film 1 in the cartridge 2 may become loose.
This may cause the ink donor film 1 to be damaged. In order to prevent this, it is preferable to apply a pack tension to the ink donor film 1 itself or the winding shaft 7 in the cartridge 2 using a spring or the like.

A specific example for applying pack tension is shown in FIG. In the figure, the same reference numerals as in FIG. 3 represent the same or equivalent parts.

When the guide 9 loads the cartridge 2 into the storage section of the recording device, the guide 9 reads Volume II! II] 7, or the cartridge 2 itself is provided so as to fit therein. A spring 8 is disposed on the guide 9 or the winding shaft 7, and is interposed between the guide 9 and the winding shaft 7 in a compressed state when the winding shaft 7 is fitted into the guide 9.

When the ink donor film 1 is about to be pulled out from the cartridge 2, the shaft 7 rotates, but this L spring 8
Since a frictional force is exerted between the ink donor film 1 and the guide 9, back tension is generated against the ink donor film 1.

Other examples of specific configurations for providing back tension are shown in FIGS. 5 and 6.

FIG. 5 shows a case in which a back tension is generated by passing an ink donor film 1 between a pair of rollers 10 and 11 pressed against each other, and FIG. a back plate 12 placed near the inside of the back plate 12 and a roller 11 pressed against the back plate 12;
Pack tension is generated by passing an ink donor film l between the two.

Furthermore, to easily obtain back tension, use the fourth
In the figure, the spring 8 may be omitted and the structure may be such that a frictional force acts directly between the winding shaft 7 and the guide 9.

(Effects) As is clear from the above description, according to the present invention, the following effects are achieved.

(1) Since the ink donor film 1 wound around the winding shaft 7 is housed in the cartridge 2, it is easy to attach it, and a guide etc. can be omitted.

(2) There is no chance that surrounding dirt or dust will stick to the ink, or that the madder will loosen and unravel during storage, or that the ink will be damaged by rubbing.

(3) If pack tension is applied to the ink donor film 1 while it is loaded in the cartridge 2,
There is no need to apply puncture tension on the side (ζ) of the transfer type thermal recording device, and the device can be simplified.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of a conventional ink donor film loading, FIG. 12 is an external perspective view of an embodiment of the present invention, FIG. Figures 6 to 6 show a part of the embodiment β1 of the present invention in which back tension is applied to the ink donor film, respectively.
It is a location diagram. 1... Ink donor film, 2... Patrone,
3. Drawer window, 7. Winding shaft, 8. Spring, 9.
...Guide, 10.11...Roller, 12...Back plate agent Michi Hiraki 1 non-person Figure 1 Figure 2 Figure 3 Figure 4

Claims (2)

[Claims] (1) An ink donor film wound around a roll in the form of a roll; a cassette-shaped container in which the ink donor film is housed; and a drawer window for the ink donor film provided in the cassette-shaped container. and means for applying pack tension to the ink donor film. (2) The ink donor film device according to item 1 of the patent scope, wherein the means for applying pack tension to the ink donor film is such as to apply a frictional force to the winding shaft. +3+ The means for applying pack tension to the ink donor film is a pressure roll that rotates in contact with the surface of the ink donor film and applies a pressing force perpendicular to the surface of the ink donor film. An ink donor film device according to claim 1.