JPS63182159A - Thermal transfer recorder - Google Patents

Abstract

PURPOSE:To form high-quality images even on a recording paper low in smoothness, by heating a low-smoothness recording paper after the paper is released from an ink donor film. CONSTITUTION:An ink donor film 11 is taken up by s take-up roll 14 after being fed through a thermal head 12 and a guide roll 13. A low-smoothness recording paper 16 is fed between the ink donor film 11 and a platen roll 15, and an ink 17 heated correspondingly to an image signal is transferred onto the paper 16 at the position of the thermal head 12. The paper 16 carrying the ink 17 transferred thereto and having been released from the film 11 is fed to a heating part 18. The paper 16 carries the ink 17 in an unsatisfactorily transferred state due to the low smoothness of the paper, but when the paper is heated by a heat roll 19, the ink made to fill recessed parts 21 of the surface of the paper 16, resulting in a satisfactorily transferred state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal transfer recording device that forms an image by transferring ink onto recording paper having low smoothness by thermal transfer.

``Prior Art'' Conventionally, in thermal transfer recording, an ink donor film and recording paper, which are superimposed on each other, are heated by a thermal head that generates heat in response to an image signal to transfer the ink from the ink donor film to the recording paper. was. Therefore, the recording paper used for thermal transfer has been used with high smoothness.

``Problems to be solved by the invention'' In the conventional thermal transfer device described above, there is a problem with low smoothness (10~
FIG. 3 shows the state of the recording paper when an image is formed using the recording paper (30 sec). On the surface of the recording paper 1 with low smoothness, there are convex parts 2 and concave parts 3 in an enlarged view, and the ink 4 after being transferred from the ink donor film is transferred to the convex parts 2 of the recording paper 1 as shown in the figure. The ink 4 does not enter the recesses 3, and the image becomes unclear due to the ink 4 being removed, which poses a quality problem in image formation. However, there was a problem in that the recording cost was high.

SUMMARY OF THE INVENTION An object of the present invention is to provide a thermal transfer recording device that can transfer ink with high precision even when recording paper with low smoothness is used.

The thermal transfer recording device of the present invention transfers ink and heats the low smoothness recording paper after peeling from the ink donor film using an appropriate heating section, thereby reducing the low smoothness. It is now possible to form high-quality images even on recording paper.

"Example" Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIG. 1, an ink donor film 11 supplied from a supply roll (not shown) passes through a thermal gutter 12 and a guide roll 13, and is then wound onto a take-up roll 14. A platen roll 15 is in contact with the thermal head 12 with an ink donor film 11 interposed therebetween. The recording paper 16 with low smoothness is connected to the ink donor film 11 moving toward the take-up roll 14 and the planar rotating in the direction of the arrow.
/ O-R15 Interval 1: Transfer, thermal head 1
2, heated ink 17 (see FIG. 2) corresponding to the image signal is transferred.

The recording paper 1 to which the ink 17 has been transferred and peeled off from the ink donor film 11 is conveyed to a heating section 18 . The heating unit 18 includes heating rolls 19 that heat the recording paper 16 while conveying the recording paper 16 while being in pressure contact with each other. The recording paper 16 after being peeled off from the ink donor film 11 is in a state where the ink 17 is incompletely transferred due to its low smoothness. This ink 17 is applied to the heating roll 1
9, the recording paper 16 is heated and enters the recess 21 of the recording paper 16, resulting in a complete transfer state, as shown in FIG.

As the heating unit 18, in addition to the heating roll 19, an appropriate heating element that emits radiant heat to the recording paper 16 is used.
Even if the recording paper 16 is heated without contacting the recording paper 16, a perfect transfer state can be obtained in the same way as described above.

``Effects of the Invention'' As described above, the present invention does not depend on the smoothness of the thermal transfer recording device and does not require the use of a special donor film or excessive energy applied to the thermal head. It is possible to achieve uniform print quality on low-smooth recording paper, which is the same as when applying on high-quality paper.

[Brief explanation of the drawing]

FIG. 1 is a side view of a thermal transfer recording device showing an embodiment of the present invention, FIG. 2 is a vertical cross-sectional side view of a recording paper produced by the thermal transfer recording device of the present invention, and FIG. 3 is a vertical cross-sectional side view of a conventional recording paper. be. 11... Ink donor film, 12...
... Thermal head, 15 ... Platen roll, 16 ... Recording paper, 17 ... Ink, 1
8... Heating section, 19... Heating roll,
21... Concavity in recording paper. Applicant: Fuji Xerox Co., Ltd. Representative
Patent Attorney Ume Yu Yamauchi 1st
Figure 2

Claims (1)

[Claims] 1. A thermal head that generates heat in response to an image signal,
In an apparatus that transfers ink for forming an image onto the recording paper by heating a recording paper made of low smoothness paper and an ink donor film in a polymerized state, the recording paper after peeled from the ink donor film is heated. 1. A thermal transfer recording device characterized in that heating is performed at a certain point. 2. The thermal transfer recording apparatus according to claim 1, wherein the heating section is a heating roll that presses against each other with a recording paper in between. 3. The thermal transfer recording apparatus according to claim 1, wherein the heating section is a heating element that emits radiant heat to the recording paper.