JPH0526392U - Printer device - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to reduce the consumption of ink sheets. [Structure] An ink sheet conveyance drive source is provided independently of the paper conveyance drive source to slow the ink sheet conveyance speed. [Effect] The consumption of the ink sheet can be reduced and the running cost can be reduced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a printer device that thermally transfers a coloring material layer onto paper.

[0002]

[Prior Art]

 A conventional printer device will be described below by taking a thermal transfer recording type printer device using a heat-fusible ink as an example. FIG. 4 is a side view of a conventional thermal transfer type printer device, and 1 is a thermal head. Reference numeral 2 is an ink sheet coated with a heat-meltable ink, 3 is a roll for winding the ink sheet 2, 4 is a supply roll for the ink sheet 2, 5 is recording paper, 6 is the ink sheet 2 and the recording paper 5 are closely adhered to each other. A rubber material is molded on the outer periphery of the platen roller which is then pressed and transferred to the thermal head 1. A pressing roller 7 presses the recording paper 5 against the platen roller 6. FIG. 5 is a cross-sectional view of the ink sheet, 21 is a film material, and 22 is a coloring material layer (here, heat-meltable ink) applied to the film.

Next, the operation will be described. The principle of the thermal transfer recording type printer device is simple. As shown in FIG. 4, the ink sheet 2 and the recording sheet 5 are brought into close contact with each other and pressed against the thermal head 1, and the heat of the thermal head heats the ink sheet 2. , The heat-meltable ink applied to the ink sheet is melted and transferred to the recording paper 5. A cross-sectional view of the ink sheet 2 is shown in FIG. A coloring material layer (heat-melting ink) 22 is applied to the surface of the film layer 21. The recording paper 5 and the ink sheet 2 are conveyed in the A and B directions by the platen 6 rotating in the arrow C direction. The conveying force at this time is a frictional force generated by the pressing of the platen 6 and the thermal head 1, so that the conveying speed of the recording sheet 5 and the ink sheet 2 becomes the same. FIG. 6 shows the ink sheet 2 and the recording paper 5 after printing, and the transfer of the same size as the heat-meltable ink 22 transferred from the ink sheet 2 is made on the recording paper 5.

[0004]

[Problems to be solved by the device]

 Since the conventional printer device is configured as described above, it is uneconomical because an ink sheet having the same size as the transfer size is required.

The present invention has been made in order to solve the above-mentioned problems, and a printer that can transfer with an ink sheet of a smaller amount than the transfer size of a recording sheet and can reduce the running cost per sheet. The purpose is to get the device.

[0006]

[Means for Solving the Problems]

 In the printer device according to the present invention, a drive system that conveys a recording sheet and an ink sheet is independently provided.

Further, the conveyance speed of the ink sheet is slower than the conveyance speed of the recording paper.

[0008]

[Action]

 In the printer device according to the present invention, the amount of ink sheet conveyed is smaller than the amount of recording paper conveyed. Therefore, for example, if the amount of conveyance is 1 / n, the amount of ink sheet used can also be transferred at 1 / n of the conventional amount.

[0009]

【Example】

 Example 1. An embodiment of this invention will be described below with reference to the drawings. In FIG. 1, 1 is a thermal head, 2 is an ink sheet coated with a heat-melting ink, 3 is a roll for winding the ink sheet 2, 4 is a supply roll for the ink sheet 2, 5 is recording paper, 6 is an ink sheet 2 A rubber material is molded on the outer circumference by a platen roller that is brought into close contact with the recording paper 5 and pressed against the thermal head 1 for transfer. Reference numeral 7 is a pressing roller that presses the recording paper 5 against the platen roller. Reference numeral 8 is a drive roller that conveys the ink sheet 2, and 9 is a driven roller. FIG. 2 is a cross-sectional view of the ink sheet 2, in which a color material layer 22 and a boundary layer 23 are applied on a film 21 in a multilayer structure.

Next, the operation will be described. As shown in FIG. 1, the ink sheet 2 and the recording sheet 5 are closely adhered to each other and pressed against the thermal head to heat the ink sheet 2 by the heat generated by the thermal head to melt the heat-meltable ink applied to the ink sheet 2. Transfer to recording paper 5. The recording sheet 5 is conveyed and driven by the pressing force of the platen 6 and the thermal head 1 and the frictional force generated by the friction coefficient between the platen 6 and the recording sheet 5. The ink sheet 2 is conveyed by drive rollers 8 and 9. The paper transport speed and the ink sheet drive speed can be set arbitrarily because their respective drive sources (not shown) are provided independently. In the following description, the description will proceed with a speed ratio of 1: 3. Since the speed ratio is 1: 3, when the recording paper advances by 3, the ink sheet advances by 1. FIG. 2 is a cross-sectional view of the ink sheet 2, which has a multilayer structure in which the color material layers 22a, 22b, 22c and the boundary layer 23 are alternately applied to the film 21. Since the surface of the colorant layer (heat-melting ink) 22 that contacts the recording paper 5 is selectively transferred to the recording paper side, when the recording paper 5 advances one step, the surface layer 22a and the intermediate layer in the next one step. 22b, the lower layer 22c is transferred in the next 1 step. FIG. 3 shows the ink sheet 2 and the recording paper 5 after the transfer.

[0011]

[Effect of the device]

 As described above, according to the present invention, the ink sheet conveyance speed is set to be slower than the recording sheet conveyance speed, so that the consumption amount of the ink sheet can be reduced and the running cost per sheet can be reduced.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view of an ink sheet showing an embodiment of the present invention.

FIG. 3 is a cross-sectional view of an ink sheet and a recording paper after transfer showing an embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a conventional printer device.

FIG. 5 is a cross-sectional view showing a conventional ink sheet.

FIG. 6 is a cross-sectional view of a conventional ink sheet and a recording sheet after transfer.

[Explanation of symbols]

 1 Thermal Head 2 Ink Sheet 21 Film 22 Coloring Layer 23 Boundary Layer 3 Winding Roll 4 Supply Roll 5 Recording Paper 6 Platen Roller 7 Pressing Roller 8 and 9 Ink Sheet Conveying Roller

Claims (1)

[Scope of utility model registration request] 1. In a printer device for heating an ink sheet having a colorant layer applied on its surface by a thermal head to transfer the colorant layer onto a sheet, a drive unit for transporting the sheet and a drive for transporting the ink sheet. A printer device in which each section is independently provided.