JPS6198569A - Paper cylinder constituting body for ink donor film reeling - Google Patents

Abstract

PURPOSE:To make the head of an ink donor film adhere to a paper cylinder without causing wrinkling or skewing by providing a piece of adhesive tape on the reeling side of the outer periphery of the paper cylinder, and by putting a protective sheet on the surface. CONSTITUTION:A protective sheet 23 is removed, and a paper cylinder 10 is mounted on a shaft 11, and the ink donor film 1 is properly reeled off, and is passed over a driving roller 8 and the paper cylinder 10, and properly turned over a guide piece 26. If both edges of the head of the ink donor film 1 are pulled with a relatively less tension, the ink donor film 1 is stretched along the guide piece 26 at the space between the guide and the driving roller 8. Then, the middle portion of the head of the ink donor film 1 is slightly pulled in D direction with one hand, and the retention by an arm 25 of locking mechanism is released with the other hand, and the arm 25 is turned in a counterclockwise direction, and the ink donor film 1 is pressed with a pressing roller 24 to stick to a double faced adhesive tape 22, and then, unnecessary portions near the head are removed for finishing.

Description

Detailed Description of the Invention "Industrial Application Field" The present invention relates to an ink donor film winding paper tube structure for winding up an ink donor film fed out from a supply side paper tube in a transfer type thermal recording device. Regarding the body.

``Prior art'' In transfer-type thermal recording devices used in facsimiles, printers, etc., an ink donor film coated with ink on one side of a base paper is overlapped with recording paper, and the base paper side of the ink donor film is placed on a thermal head. It is designed to heat selectively. The ink fluidized or sublimated by this heating is transferred to the recording paper, thereby recording image information.

FIG. 4 shows an example of such a conventional transfer type thermal recording apparatus.

This recording apparatus is equipped with a long ink donor film 1 wound around a paper tube 2 on the supply side. The paper tube 2 is detachably attached to the shaft 3 and rotates together with the shaft 3. The ink donor film 1 fed out from the paper tube 2 passes through the guide roller 4, between the thermal head 5 and the back roller 60, between the guide roller 7, the drive roller 8 and the pinch roller 9, and then passes through the paper on the winding side. It is designed to be wound around a tube 10. The paper tube 10 on the winding side is attached to the shaft 11 with an attachment/detachment opening, and rotates together with the shaft 11.

The drive roller 8 and shaft 11 are each rotated in the direction of the arrow by a step motor (not shown).

Now, the recording paper 12 is loaded from the paper feed tray (not shown) of this recording device.
Assume that the paper is sent out, transported in the direction of the arrow, and reaches the vicinity of the thermal head 5. Then, a sensor (not shown) detects this, the step motor starts driving, and the drive roller 8 and shaft 11 are rotated in the directions of the arrows. As a result, the ink donor film 1 is
The recording paper 12 passes between the thermal head 5 and the back roller 6 in an overlapping state. At this time, the thermal head 5 is driven to selectively heat the ink donor film 1 according to the image signal, thereby performing thermal transfer recording. After recording is completed, the recording paper 12 is peeled off from the ink donor film 1, conveyed in the direction of arrow C, and discharged to a discharge tray (not shown).

In such a recording apparatus, when the ink donor film 1 is used up, it must be replaced.

When replacing the ink donor film 1, although not shown, for example, the upper device main body to which the pick roller 6 and pinch roller 9 are attached is replaced with the thermal head 5, drive roller 8, and guide roller 4.7. Then, the shaft 3.11 is opened upward to the lower device main body to which the shaft 3.11 is attached, and the operation is carried out in this state.

That is, first, the upper main body of the apparatus is opened, and the pinching of the ink donor film 1 by the rollers 6, the thermal head 5, the pinch rollers 9, and the drive rollers 8 is released. Next, attach the paper tube 2.10 to the shaft 3
．． Remove each from 11. Next, the paper tube 2 on the supply side wound with a new ink donor film 1 is attached to the shaft 3, and the empty paper tube 10 on the winding side is attached to the shaft 11. Next, the ink donor film 1 is appropriately fed out from the paper tube 2 on the supply side, and after passing above each of the guide roller 4, thermal head 5, guide roller 7, and drive roller 8, as shown in FIG. The leading end thereof is adhered to the paper tube 10 on the winding side with an adhesive tape 13. Next, the upper main body of the apparatus is closed, thus completing the replacement of the ink donor film 1.

In such a recording apparatus, the ink donor film 1 is heated by bringing the thermal head 5 into contact with its base paper.

Therefore, the base paper of the ink donor film 1 needs to be as thin as several to several tens of micrometers from the viewpoint of heat transferability and resolution. On the other hand, the width of the ink donor film 10 is equal to the width of the recording paper 10.
It is necessary to make it somewhat longer than the width of 2. Recording paper 12
When the size of the ink donor film 1 is F3, the width of the ink donor film 1 is somewhat longer than the width (210 mm) of the recording paper 12, resulting in a considerable length.

In this way, if the thickness of the ink donor film 1 is quite thin and the width is quite long, the leading end of the ink donor film 1 is attached to the paper tube on the winding side.
When gluing 0, you have to hold the tip with your cubic hand and apply the adhesive tape 13 with the other hand, so it is extremely important to ensure that the tip mla is aligned with the axis of the paper tube 10 on the winding side. Have difficulty. If the leading edge 1a of the ink donor film 1 is not exactly aligned with the axis of the paper tube 10 on the take-up side, the ink donor film 1 is
When the ink donor film 1 is wound up, wrinkles and skininess occur in the ink donor film 1. If wrinkles or skinny occur in the ink donor film 1, transfer defects will occur in those areas, and the quality of the recording surface will deteriorate.

Further, when the adhesive tape 13 is relatively short as shown in FIG. 5, the adhesion work is relatively easy, but when the ink donor film 1 is stretched, wrinkles occur as shown by the dashed line in the figure. I end up.

On the other hand, if the adhesive tape 13 is approximately the same length as the paper tube 10 on the winding side, wrinkles as shown by the dashed line in FIG. 5 will not occur, but the bonding work will become extremely difficult. .

As a method to solve such problems, a method as shown in Fig. 6 was previously proposed (Japanese Unexamined Patent Publication No. 58-160).
(See No. 184). In this method, the leading end of the ink donor film 1 unwound from the paper tube 2 on the supply side is attached to the attachment sheet 14 attached to the paper tube 10 on the winding side, with the base end thereof being attached to the paper tube 10 on the winding side.
This overlapping portion is sandwiched from above and below between the two presser plates 15 and I6, and in this state, the tip of the ink donor film 1 is attached to the tip of the mounting sheet 14 with adhesive tape 17. After that, attach two presser plates 15.1.
6 can be removed.

However, in this method, the mounting sheet 14 is used in addition to the adhesive tape 17, which increases the cost. Furthermore, when the paper tube 10 on the supply side is empty, since the mounting sheet 14 is not attached to it, it cannot be used as the paper tube 10 on the winding side, resulting in waste. I end up. Two more presser plates 15.1
6, the work becomes troublesome.

``Problems to be solved by the invention'' As described above, the conventional ink donor film mounting method
There have been problems in that the ink donor film tends to wrinkle or skew, the work is troublesome, and the cost increases.

In view of these circumstances, the present invention provides an inexpensive ink donor film winding paper tube that allows the leading end of the ink donor film to be easily adhered to the paper core on the winding side without causing wrinkles or skew. Its purpose is to provide a construct.

"Means for Solving the Problem" In the present invention, an adhesive such as adhesive tape is applied in advance to a predetermined location on the outer peripheral surface of the paper tube on the winding side, and this adhesive is kept in a non-adhesive state. To prevent this, a removable protective sheet is provided on the surface of the ink donor film and then wiped. The tip of the adhesive is attached to the exposed adhesive.

"Example" The present invention will be described in detail below with reference to Examples.

FIG. 1 shows a part of an ink donor film-wound paper tube structure according to an embodiment of the present invention, and FIG. 2 shows the main parts of a thermal transfer recording device using this ink donor film-wound paper tube structure. It represents. In these figures, the same parts as in FIG. 4 are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

The ink donor film winding paper tube structure 21 includes a paper tube 10 on the winding side, a double-sided adhesive tape 22 that is adhered to the outer peripheral surface of the paper tube 10 over almost the entire axial direction at an appropriate location, and It consists of a protective sheet 23 that is removably provided on the surface of the adhesive tape 22 to keep it in a non-adhesive state. The double-sided adhesive tape 22 may be formed into a plurality of small pieces and may be provided at intervals in the axial direction of the paper tube 10.

At a predetermined location near the shirt 11 on the winding side to which the ink donor film winding paper tube structure 21 is detachably attached, there is a pressing roller 24 made of a sponge roller.
is provided so as to be able to move toward and away from the shaft 11. Both ends of the pressing roller 24 are rotatably or fixedly attached to the tip of the arm 25. The base end of the arm 250 has a guide member 26 for tensioning the ink donor film.
It is rotatably attached via a pin 28 to support fittings 27 provided at both ends of the holder. The guide member 26 is made of a plastic flat plate having 58 upper and lower parts, is parallel to the shaft 11, and has both ends attached to a frame (not shown).

When attaching the leading end of a new ink donor film l to the empty paper tube 10 on the winding side in this recording device, first peel off the protective sheet 23, and then attach the paper tube lO on the winding side to the shaft 11. Then, place the exposed double-sided adhesive tape 22 at a position corresponding to the pressing roller 24. At this time, the arm 25 is rotated clockwise in FIG. 2, positioned at a rotation limit position in the same direction substantially along the guide member 26, and locked by a locking mechanism (not shown). Therefore, the pressure roller 24 is held at a position farthest from the shaft 11. Therefore, when attaching the paper tube 10 on the winding side to the shaft 11, the pressure roller 24 and the arm 25
is not a hindrance.

After the paper tube 10 on the winding side is attached to the shaft 11, the ink donor film 1 is appropriately fed out from the paper tube 2 attached to the shaft 3 on the supply side as shown in FIG. , after passing above the guide roller 7 and drive roller 8, respectively.
It passes near the paper tube 10 on the winding side and is appropriately wound around the guide member 25 as shown in FIG. In this state, if you hold both ends of the tip of the ink donor film 1 with your hands and pull it relatively lightly in the direction of the arrow, the ink donor film 1 will be placed along the guide member 25 and between it and the drive roller 8. I feel nervous.

If wrinkles or skew occur in the ink donor film 1 at this time, the ink donor film 1 may be slightly loosened, its position corrected, and then tensioned again. In this tensioned state, there is a slight gap between the ink donor film 1 and the paper tube 10, so that the ink donor film 1 is not adhered to the double-sided adhesive tape 22 in this state.

After the ink donor film 1 is neatly taut, hold the center of the tip of the ink donor film 1 with one hand and pull it relatively lightly in the direction of the arrow. At this time, since the ink donor film 1 is placed along the lower 68 portion of the guide member 25 in FIG.

Next, while maintaining this state, release the locking of the arm 25 by the locking mechanism with the other hand, rotate the arm 25 counterclockwise in FIG.
Press the ink donor film 1 with the double-sided adhesive tape 2.
Glue it to 2. Since the pressing roller 24 is made of a sponge roller, it is possible to adhere the ink donor film 1 to the double-sided adhesive tape 22 over a relatively wide area by crushing it appropriately.

Next, the vicinity of the portion of the ink donor film 10 adhered to the double-sided adhesive tape 22 is cut using a cutter (not shown) to remove unnecessary portions on the front end side of the ink donor film 1. Thereafter, the arm 25 is rotated clockwise in FIG. 2, returned to its original position, and locked by the locking mechanism. In this way, the attachment of the leading end of the ink donor film 1 to the paper tube 10 on the winding side is completed.

In the above embodiment, the ink donor film 1 is cut by a cutter (not shown), but for example, as shown in FIG. 3, a cutter 29 is attached to a predetermined position of the arm 25 near the pressure roller 24, and the film is cut with this. You can do it like this.

Further, in the above embodiment, the pressure roller 24, the guide member 26, etc. are used, but it goes without saying that the tip of the ink donor film 1 may be adhered to the double-sided adhesive tape 22 without using these. In this case,
First, hold both ends of the tip of the ink donor film 1 with your hands and pull appropriately to make the ink donor film 1 neatly taut. Then, while maintaining this state, attach the tip of the ink donor film 1 or an appropriate place with double-sided adhesive tape. 22 for temporary adhesion, then remove your hand from the ink donor film l, and press a predetermined location onto the double-sided adhesive tape 22 by hand. When the leading end of the ink donor film 1 is adhered to the double-sided adhesive tape 22, there is no need to cut the leading end of the ink donor film 1, and the ink donor film 1 is not wasted.

"Effects of the Invention" As explained above, according to the present invention, it is sufficient to press the ink donor film onto an adhesive such as a double-sided adhesive tape.
There is no need to apply adhesive tape like in the past, so
Gluing work becomes easier. Furthermore, since the leading end of the ink donor film can be adhered to the paper tube on the take-up side without causing wrinkles or skew, the quality of the recording surface will not deteriorate. Furthermore, since it is sufficient to use adhesive such as double-sided adhesive tape and a protective sheet, it can be manufactured at low cost. Furthermore, if adhesive and a protective sheet are provided on the paper tube on the supply side and an ink donor film is wound on top of these, when it is empty, it can be used as it is as a paper tube on the winding side. can.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a part of an ink donor film winding paper tube structure in one embodiment of the present invention, and FIG. 2 is a main part of a thermal transfer recording device using this ink donor film winding paper tube structure. FIG. 3 is a perspective view showing the main parts of a modification thereof, FIG. 4 is a schematic configuration diagram showing an example of a transfer-type thermal recording device, and FIGS. 5 and 6 are each a conventional ink FIG. 3 is a perspective view shown to illustrate each side of the donor film attachment method. 1... Ink donor film, 10...
- Paper tube on the winding side, 21... Ink donor film winding paper tube structure, 22... Double-sided adhesive tape, 23...
...protection sheet, 24 ...press roller, 26 ... guide member for tensioning the ink donor film, 29 ... cutter. Applicant: Fuji Xerox Co., Ltd. Representative
Patent Attorney Ume Yu Yamauchi 1st
Figure 2 Figure 3

Claims (1)

[Claims] A paper tube on the winding side for winding up the ink donor film unwound from the paper tube on the supply side, an adhesive such as an adhesive tape provided at an appropriate location on the outer peripheral surface of the paper tube on the winding side, In order to keep this adhesive in a non-adhesive state, the adhesive is equipped with a removable protective sheet on its surface, and the tip of the ink donor film fed out from the paper tube on the supply side is attached to the paper tube on the winding side. A method for constructing an ink donor film winding paper tube, which comprises peeling off a protective sheet and adhering the leading end of the ink donor film to the exposed adhesive when installing the film.